{"openapi":"3.1.0","info":{"title":"Agent Exchange","version":"1.2.0","description":"Machine-payable data APIs for AI agents across web search, on-chain reads, trading data, market judgment, and AI visibility. The canonical x402 catalog currently exposes 79 paid routes. Pay per call in USDC via x402 on Base. No API keys, no signup.","x-guidance":"Pay-per-call data APIs for AI agents — cheap, keyless, USDC over x402 on Base (eip155:8453). Each paid GET returns HTTP 402; pay and retry with the X-PAYMENT header. WEB & DEVELOPER SEARCH: GET /web/search (one call → Hacker News + GitHub + Stack Overflow + Wikipedia, unified results — search the web, find code, research a topic, ground an answer), GET /web/wikipedia (fact lookup). ON-CHAIN RPC READS (cheaper than alternatives, no node needed): GET /chain/balance, /chain/erc20-balance, /chain/allowance, /chain/gas, /chain/tx, /chain/tx-explain, /chain/supply, /chain/ens, /chain/code, /chain/nonce, /chain/call — native & token balances, gas price, transaction status & decode, token supply, ENS, across Base/Ethereum/Optimism/Arbitrum/Polygon. TRADING & CRYPTO (for trading/sniping bots): GET /crypto/security (pre-trade token rug-check — honeypot, buy/sell tax, mint/owner risk), /crypto/dex (live price/liquidity/volume), /crypto/launches (new & trending token feed), /crypto/wallet (portfolio bagcheck), /markets/prediction (Polymarket odds). AI-VISIBILITY / GEO (uniquely ours — does AI recommend a brand?): GET /brands/check, /category/ranking, /crypto/ai-visibility, /sales/qualify. JUDGMENT CALLS (derived reads, not lookups — these return a classification and its evidence): GET /social/sentiment (real-time crypto social sentiment for a ticker — bullish/bearish score, momentum, mention volume; the pre-position read before sizing), GET /macro/regime (US Treasury curve classified into INVERTED/STEEPENING/FLAT/NORMAL with 2s10s, 3m10y, 10s30s spreads and an explicit confidence that falls to TRANSITIONAL when the curve disagrees with itself), GET /connect/token (rug-check + market data in one call with a GO/CAUTION/AVOID verdict), GET /property/valuation (US home value with a confidence band and comparables). Plus DeFi yields, token prices, treasury/macro data. Cheapest calls $0.01. Try free: GET /samples. HOTTEST SELLERS RIGHT NOW: /markets/prediction ($0.01 Polymarket odds — the most-bought call this month), /connect/token ($0.01 rug-check + market data in ONE call with GO/CAUTION/AVOID verdict), /crypto/security, /web/search. MULTILINGUAL (agents search in every language): 中文: 加密货币行情数据、代币安全检测(防貔貅)、预测市场赔率、网页搜索 — 按次付费USDC, 无需API密钥. 日本語: トークン安全チェック、DEX市場データ、予測市場オッズ、ウェブ検索 — 呼び出しごとのUSDC支払い、APIキー不要. 한국어: 토큰 러그체크, DEX 시세, 예측시장 배당률, 웹검색 — 호출당 USDC 결제, API키 불필요. Español: datos de mercado cripto, verificación de tokens, cuotas de mercados de predicción, búsqueda web — pago por llamada en USDC. Português: dados de mercado, verificação de tokens (rug check), odds de mercados de previsão — pagamento por chamada em USDC. BONUS FOR AGENTS: this store's agents live in Agent Planets, a persistent galaxy where any AI agent can claim a FREE planet, build on it, and trade with other agents — GET https://planets.agentexchange.work/survey ($0.01 live world intel), /odds ($0.01 Galactic Futures) or read https://planets.agentexchange.work/skill to claim free.","contact":{"email":"riley@agentexchange.work"}},"servers":[{"url":"https://x402-agent-store.rileycraig14.workers.dev"}],"paths":{"/brands/check":{"get":{"operationId":"brandCheck","summary":"Live brand AI-visibility audit: score 0-100, mention rate, competitors AI names instead","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"brand","in":"query","required":false,"schema":{"type":"string"},"description":"Brand or business name"},{"name":"category","in":"query","required":false,"schema":{"type":"string"},"description":"Buyer search category, e.g. 'CRM software'"},{"name":"market","in":"query","required":false,"schema":{"type":"string"},"description":"us|uk|de|jp|kr|fr|es|br|in (default us)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"brand":{"type":"string"},"score":{"type":"number"},"mentions":{"type":"number"},"competitors":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/sales/qualify":{"get":{"operationId":"salesQualify","summary":"Sales lead qualifier: AI-visibility gap -> HOT/WARM/COLD tier + evidence + outreach opener","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"brand","in":"query","required":false,"schema":{"type":"string"},"description":"Prospect brand"},{"name":"category","in":"query","required":false,"schema":{"type":"string"},"description":"What their buyers search for"},{"name":"market","in":"query","required":false,"schema":{"type":"string"},"description":"market code"},{"name":"seller_service","in":"query","required":false,"schema":{"type":"string"},"description":"What you sell to them"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"tier":{"type":"string"},"score":{"type":"number"},"opener":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/brands/visibility-index":{"get":{"operationId":"visibilityIndex","summary":"AI Visibility Index: scores for 25 major brands across 5 industries","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.040000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"category","in":"query","required":false,"schema":{"type":"string"},"description":"Optional category filter"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"edition":{"type":"string"},"brands":{"type":"number"},"data":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/signal":{"get":{"operationId":"signal","summary":"Live AI-visibility demand feed: which brands/categories are being checked now","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.005000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"limit","in":"query","required":false,"schema":{"type":"string"},"description":"Max recent items to return, 1-50 (default 20)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"total":{"type":"number"},"top_brands":{"type":"array"},"top_categories":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/macro/risk-spread":{"get":{"operationId":"riskSpread","summary":"DeFi stablecoin yields vs official US T-bill rate: spread + verdict","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"min_tvl","in":"query","required":false,"schema":{"type":"string"},"description":"Minimum pool TVL in USD to consider (default 10000000)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"tbill_rate":{"type":"number"},"top_defi_apy":{"type":"number"},"spread":{"type":"number"},"verdict":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/liquidations":{"get":{"operationId":"cryptoLiquidations","summary":"Liquidation pressure read: which side of the perp market is over-leveraged right now — a named regime (LONG_SQUEEZE_RISK / SHORT_SQUEEZE_RISK / BALANCED), a 0-100 pressure score, and the funding, open-interest and long/short evidence behind it. Derived positioning judgment, not a raw liquidation tape.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"symbol","in":"query","required":false,"schema":{"type":"string"},"description":"Asset ticker, e.g. BTC, ETH, SOL (default BTC)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"symbol":{"type":"string"},"regime":{"type":"string"},"pressure":{"type":"number"},"verdict":{"type":"string"},"evidence":{"type":"array"},"funding_annualised_pct":{"type":"number"},"long_short_account_ratio":{"type":"number"},"open_interest_usd":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/macro/regime":{"get":{"operationId":"macroRegime","summary":"US macro regime read (not a rate lookup): classifies the Treasury curve into a named regime — INVERTED / STEEPENING / FLAT / NORMAL — with 2s10s, 3m10y and 10s30s spreads, level percentile, direction, and an explicit confidence that drops to TRANSITIONAL when the front and back of the curve disagree. Derived judgment from official Treasury data, not a number lookup.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.050000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"lookback","in":"query","required":false,"schema":{"type":"string"},"description":"Trading days of curve history used for the direction and percentile reads, 5-250 (default 60)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"regime":{"type":"string"},"confidence":{"type":"string"},"spread_2s10s":{"type":"number"},"spread_3m10y":{"type":"number"},"spread_10s30s":{"type":"number"},"level_percentile":{"type":"number"},"direction":{"type":"string"},"evidence":{"type":"array"},"as_of":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/social/sentiment":{"get":{"operationId":"socialSentiment","summary":"Real-time crypto social sentiment: scans public communities and feeds for a ticker, scores bullish/bearish tone and momentum, and returns the mention volume behind the score. The pre-position read sentiment and trading agents make before sizing — pairs with /crypto/dex (price) and /crypto/security (safety).","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.050000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"symbol","in":"query","required":false,"schema":{"type":"string"},"description":"Ticker or token symbol, e.g. BTC, ETH, SOL"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"symbol":{"type":"string"},"sentiment":{"type":"string"},"score":{"type":"number"},"mentions":{"type":"number"},"sources":{"type":"array"},"as_of":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/property/valuation":{"get":{"operationId":"propertyValuation","summary":"US residential property valuation: estimated value with a confidence band, comparable sales, and the local market context behind the number — an underwriting-grade read for real-estate, lending and insurance agents, not an address lookup.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Full US street address"},{"name":"zip","in":"query","required":false,"schema":{"type":"string"},"description":"Optional ZIP to disambiguate"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"address":{"type":"string"},"estimate_usd":{"type":"number"},"confidence":{"type":"string"},"range_low_usd":{"type":"number"},"range_high_usd":{"type":"number"},"comparables":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/gov/treasury":{"get":{"operationId":"govTreasury","summary":"US Treasury average interest rates + total public debt (live, official)","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"security_type","in":"query","required":false,"schema":{"type":"string"},"description":"Optional filter: Bills|Notes|Bonds|TIPS|FRN"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"as_of":{"type":"string"},"avg_interest_rates":{"type":"array"},"total_public_debt_usd":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/defi/yields":{"get":{"operationId":"defiYields","summary":"Top DeFi pools by chain/TVL (live)","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"Chain filter, e.g. Base"},{"name":"min_tvl","in":"query","required":false,"schema":{"type":"string"},"description":"Minimum TVL in USD"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"pools":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/prices":{"get":{"operationId":"cryptoPrices","summary":"Current token prices by CoinGecko id","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"ids","in":"query","required":false,"schema":{"type":"string"},"description":"Comma-separated CoinGecko ids, e.g. bitcoin,ethereum"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"prices":{"type":"object"},"source":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/web/search":{"get":{"operationId":"webSearch","summary":"Multi-source web & developer search in one call: Hacker News + GitHub + Stack Overflow + Wikipedia by keyword, unified ranked results. No API keys.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"q","in":"query","required":false,"schema":{"type":"string"},"description":"Search query / keywords (required)"},{"name":"sources","in":"query","required":false,"schema":{"type":"string"},"description":"Comma list to narrow: hackernews,github,stackoverflow,wikipedia (default all)"},{"name":"limit","in":"query","required":false,"schema":{"type":"string"},"description":"Results per source 1-10 (default 5)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"query":{"type":"string"},"count":{"type":"number"},"results":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/web/wikipedia":{"get":{"operationId":"webWiki","summary":"Wikipedia knowledge lookup: titles + extract snippets + URLs for any topic — cheap fact-grounding","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"q","in":"query","required":false,"schema":{"type":"string"},"description":"Topic / search query (required)"},{"name":"limit","in":"query","required":false,"schema":{"type":"string"},"description":"Results 1-10 (default 3)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"query":{"type":"string"},"count":{"type":"number"},"results":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/github/trending":{"get":{"operationId":"githubTrending","summary":"Top trending GitHub repos by stars (day/week/month, optional language)","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"language","in":"query","required":false,"schema":{"type":"string"},"description":"Filter by language, e.g. typescript"},{"name":"since","in":"query","required":false,"schema":{"type":"string"},"description":"day|week|month"},{"name":"top","in":"query","required":false,"schema":{"type":"string"},"description":"1-30"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"repos":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/npm/downloads":{"get":{"operationId":"npmDownloads","summary":"npm package download counts (day/week/month)","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"package","in":"query","required":false,"schema":{"type":"string"},"description":"npm package name"},{"name":"period","in":"query","required":false,"schema":{"type":"string"},"description":"last-day|last-week|last-month"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"package":{"type":"string"},"downloads":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/hn/top":{"get":{"operationId":"hnTop","summary":"Hacker News top stories with score, author, comments, links","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"top","in":"query","required":false,"schema":{"type":"string"},"description":"1-20"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"stories":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/ai-visibility":{"get":{"operationId":"cryptoAiVisibility","summary":"Does AI recommend this crypto token/protocol/chain in its category? AI-visibility score + who AI names instead","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"project","in":"query","required":false,"schema":{"type":"string"},"description":"Token/protocol/chain name, e.g. Aave, Arbitrum"},{"name":"category","in":"query","required":false,"schema":{"type":"string"},"description":"e.g. DeFi lending protocols, Layer 2 networks, AI crypto agents"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"project":{"type":"string"},"score":{"type":"number"},"mentions":{"type":"number"},"competitors":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/launches":{"get":{"operationId":"tokenLaunches","summary":"New & trending token launches (Dexscreener): newest + most-boosted tokens across chains; each item chains into /crypto/security and /crypto/dex. The discovery feed sniper/trading agents poll on a loop.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"optional filter: solana|base|ethereum|bsc (default all)"},{"name":"limit","in":"query","required":false,"schema":{"type":"string"},"description":"1-30, default 15"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"items":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/wave-radar":{"get":{"operationId":"baseWaveRadar","summary":"Base Wave Radar: new/boosted Base token discovery fused with live liquidity, volume, buy/sell flow, momentum and contract-risk screening, ranked by transparent REVIEW/WATCH/LOW_SIGNAL/REJECT rules. 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Reports the attention leader and explicit safety-data gaps. Research only; never an automatic trade or profit prediction.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chains","in":"query","required":false,"schema":{"type":"string"},"description":"Comma-separated subset of solana,robinhood,base,ethereum"},{"name":"limit","in":"query","required":false,"schema":{"type":"string"},"description":"Ranked candidates 1-16 (default 10)"},{"name":"min_liquidity","in":"query","required":false,"schema":{"type":"string"},"description":"Minimum DEX liquidity USD before WATCH/REVIEW (default 10000)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"attention_leader":{"type":"string"},"chain_distribution":{"type":"array"},"count":{"type":"number"},"candidates":{"type":"array"},"methodology":{"type":"object"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/wallet":{"get":{"operationId":"walletHoldings","summary":"Wallet portfolio / bagcheck (Blockscout): any wallet's token holdings with live USD values, total portfolio value, top-position concentration, spam-filtered. For copy-trade, risk and research agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"wallet","in":"query","required":false,"schema":{"type":"string"},"description":"Wallet address (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"total_usd_value":{"type":"number"},"top_position":{"type":"object"},"holdings":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/security":{"get":{"operationId":"tokenSecurity","summary":"Token security / rug-check (GoPlus): honeypot, buy/sell tax, mintable, owner-reclaim, transfer-pausable, blacklist, holders + DANGER/HIGH_RISK/CAUTION/OK verdict. 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The compliance/KYT read payment, settlement & trading agents make before transacting with a counterparty.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Wallet address to screen (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"ethereum|base|bsc|polygon|arbitrum|optimism|avalanche (default ethereum)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"verdict":{"type":"string"},"sanctioned":{"type":"boolean"},"flags":{"type":"array"},"risk_count":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/dex":{"get":{"operationId":"dexToken","summary":"Live DEX token data (Dexscreener): price, 24h volume, liquidity, buy/sell flow, momentum — any token/chain","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"q","in":"query","required":false,"schema":{"type":"string"},"description":"Token symbol, name, or contract address (e.g. WIF, PEPE, 0x...)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"query":{"type":"string"},"pairs":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/whales":{"get":{"operationId":"whaleAlerts","summary":"Whale transfer alerts (Blockscout): largest recent USDC/WETH/cbBTC/USDT/WBTC transfers on Base or Ethereum with USD value, from/to labels, tx hash + age. The smart-money / whale-watching flow feed for trading & copy-trade agents — Nansen-style whale alerts, pay-per-call.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"token","in":"query","required":false,"schema":{"type":"string"},"description":"usdc|weth|cbbtc (base) or usdc|usdt|weth|wbtc (ethereum), or any ERC-20 contract 0x... 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The Nansen-style smart-money profile for copy-trade, whale-watching and risk agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"wallet","in":"query","required":false,"schema":{"type":"string"},"description":"Wallet address to profile (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"activity":{"type":"string"},"net_flows":{"type":"array"},"recent_methods":{"type":"object"},"top_counterparties":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/balance":{"get":{"operationId":"chainBalance","summary":"On-chain native balance (Blockscout): any address's native coin balance with live USD value and tx count. The cheapest, highest-frequency RPC read — for wallet-tracking, settlement and trading agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Account address (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"balance":{"type":"number"},"usd_value":{"type":"number"},"tx_count":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/connect/token":{"get":{"operationId":"connectToken","summary":"Token Intelligence Connector: ONE call fuses GoPlus rug-check + Dexscreener market data into a GO/CAUTION/AVOID recommendation. The aggregator call instead of chaining rug-check + dex separately.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Token contract address 0x... (required)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"ethereum|base|bsc|polygon|arbitrum|optimism|avalanche (default ethereum)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"recommendation":{"type":"string"},"security":{"type":"object"},"market":{"type":"object"}}}}}},"402":{"description":"Payment Required"}}}},"/crypto/pretrade-pack":{"get":{"operationId":"pretradePack","summary":"Pre-Trade Full Report ($0.09): rug-check + whale-concentration (top-holder % of supply) + full liquidity depth across every DEX pair + socials/website, fused into one pre-trade call — everything a sniper checks before a buy, at one price.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Token contract address 0x... (required)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"ethereum|base|bsc|polygon|arbitrum|optimism|avalanche (default ethereum)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"recommendation":{"type":"string"},"security":{"type":"object"},"concentration":{"type":"object"},"pairs":{"type":"array"},"total_liquidity_usd":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/connect/company":{"get":{"operationId":"connectCompany","summary":"Company/Domain Enrichment Connector: RDAP domain age + registrar, DNS email provider, Wikipedia profile fused in one call. Free-data company intel for sales, research & qualification agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.027000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"domain","in":"query","required":false,"schema":{"type":"string"},"description":"Company domain, e.g. stripe.com (required)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"domain_age_years":{"type":"number"},"has_email":{"type":"boolean"},"summary":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/intel/opportunities":{"get":{"operationId":"intelOpportunities","summary":"Opportunity Intelligence Signals (scored): turns US federal spending into agent-actionable signals — value, urgency 0-1, why_it_matters, recommended_action — by sector + optional US state. The intelligence layer, not a raw feed.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"sector","in":"query","required":false,"schema":{"type":"string"},"description":"Sector/keyword, e.g. construction (required)"},{"name":"state","in":"query","required":false,"schema":{"type":"string"},"description":"Optional 2-letter US state, e.g. AZ"},{"name":"months","in":"query","required":false,"schema":{"type":"string"},"description":"Lookback months 1-24 (default 6)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"sector_activity_score":{"type":"number"},"signals":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/intel/eu-tenders":{"get":{"operationId":"euTenders","summary":"EU Tender Intelligence (official EU TED): live public procurement tenders across all 27 EU member states by keyword/sector — title, country, date, notice link, recent-first, with total match count. The overseas opportunity layer.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"q","in":"query","required":false,"schema":{"type":"string"},"description":"Keyword/sector, e.g. cybersecurity (required)"},{"name":"months","in":"query","required":false,"schema":{"type":"string"},"description":"Lookback months 1-24 (default 6)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"total_matches":{"type":"number"},"count":{"type":"number"},"tenders":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/gov/contracts":{"get":{"operationId":"govContracts","summary":"Federal Contract Opportunity Intelligence (USAspending.gov): recent federal awards by sector — top recipients, amounts, agencies + a sector activity score. Who's winning government money in a space, for sales/research/competitive-intel agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"q","in":"query","required":false,"schema":{"type":"string"},"description":"Keyword/sector, e.g. cybersecurity (required)"},{"name":"months","in":"query","required":false,"schema":{"type":"string"},"description":"Lookback months 1-36 (default 12)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"activity_score":{"type":"number"},"sampled_total_usd":{"type":"number"},"top_awards":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/chain-id":{"get":{"operationId":"chainId","summary":"EIP-155 chain ID (eth_chainId) for any of 6 chains — confirm which chain an RPC is on before signing. 6 chains vs OneSource's Ethereum-only coverage.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.026000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"chain":{"type":"string"},"chain_id":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/estimate-gas":{"get":{"operationId":"estimateGas","summary":"Estimate gas a tx will use (eth_estimateGas) across 6 chains — the pre-send read tx-building, trading and settlement agents make.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"to","in":"query","required":false,"schema":{"type":"string"},"description":"Recipient/contract address 0x... (required)"},{"name":"from","in":"query","required":false,"schema":{"type":"string"},"description":"Sender 0x..."},{"name":"value","in":"query","required":false,"schema":{"type":"string"},"description":"Wei value (hex or decimal)"},{"name":"data","in":"query","required":false,"schema":{"type":"string"},"description":"Calldata 0x..."},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"chain":{"type":"string"},"gas":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/storage":{"get":{"operationId":"storageAt","summary":"Read a raw contract storage slot (eth_getStorageAt) across 6 chains — inspect contract state directly, for audit & proxy-resolution agents.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Contract address 0x... (required)"},{"name":"slot","in":"query","required":false,"schema":{"type":"string"},"description":"Storage slot, hex or decimal (required)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"value":{"type":"string"},"slot":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/gas":{"get":{"operationId":"chainGas","summary":"Live gas price (Blockscout): slow/average/fast in gwei for any chain — the pre-transaction read trading, sniping and settlement agents make before sending.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.020000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default ethereum)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"slow":{"type":"number"},"average":{"type":"number"},"fast":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/tx":{"get":{"operationId":"chainTx","summary":"Transaction status & receipt (Blockscout): confirm any tx landed — status/block/confirmations/value/fee/gas/method, any chain. The read settlement, trading and payment agents poll after sending.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"hash","in":"query","required":false,"schema":{"type":"string"},"description":"Transaction hash (0x... 64 hex)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"status":{"type":"string"},"block":{"type":"number"},"confirmations":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/tx-explain":{"get":{"operationId":"chainTxExplain","summary":"Transaction explainer (Blockscout): plain-English decode of any tx — what happened (swap/transfer/approval/mint/contract call), the actors, and every native + token asset change with symbol, amount and direction, plus status/fee/method. The tx_explainer read for wallet-UX, accounting, risk, dispute and trading agents — one paid call instead of running your own indexer + ABI decoder.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"hash","in":"query","required":false,"schema":{"type":"string"},"description":"Transaction hash (0x... 64 hex)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"action":{"type":"string"},"summary":{"type":"string"},"asset_changes":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/supply":{"get":{"operationId":"chainSupply","summary":"Token supply & holders (Blockscout): total supply, holder count, decimals + live USD price & market cap for any ERC-20/721 token contract, any chain. The supply read trading, valuation and risk agents make before pricing a token.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.010000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Token contract address (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default ethereum)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"total_supply":{"type":"number"},"holders":{"type":"number"},"usd_price":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/ens":{"get":{"operationId":"chainEns","summary":"ENS resolver, either direction on Ethereum: an ENS name (vitalik.eth) → its 0x address, or a 0x address → its primary ENS name + avatar. The identity read wallet, payment and UX agents make to verify a recipient or show a human-readable name.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.005000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"name","in":"query","required":false,"schema":{"type":"string"},"description":"ENS name to resolve to an address, e.g. vitalik.eth"},{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"0x address to reverse-resolve to its primary ENS name"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"name":{"type":"string"},"address":{"type":"string"},"resolved":{"type":"boolean"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/erc20-balance":{"get":{"operationId":"erc20Balance","summary":"ERC-20 token balance: any wallet's balance of any token (USDC/USDT/DAI/any contract) via balanceOf — the most-polled token read for wallet-tracking, copy-trade and trading agents. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"wallet","in":"query","required":false,"schema":{"type":"string"},"description":"Holder wallet address (0x...)"},{"name":"token","in":"query","required":false,"schema":{"type":"string"},"description":"ERC-20 token contract (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"balance":{"type":"number"},"decimals":{"type":"number"},"raw_balance":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/code":{"get":{"operationId":"contractCode","summary":"Contract or wallet? Returns whether an address has deployed bytecode and its size via eth_getCode — the safety read before interacting with an address. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Address to check (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"is_contract":{"type":"boolean"},"code_size":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/block-number":{"get":{"operationId":"blockNumber","summary":"Latest block number (current chain tip) via eth_blockNumber — the freshness read settlement, indexing and trading agents poll. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.050000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"block_number":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/block":{"get":{"operationId":"chainBlock","summary":"Full block header via eth_getBlockByNumber — timestamp and age, transaction count, gas used vs limit with a utilization ratio and congested flag, base fee in gwei, miner and parent hash. Accepts a height or latest/finalized/safe. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"number","in":"query","required":false,"schema":{"type":"string"},"description":"Block height (decimal or 0x hex) or latest|finalized|safe|earliest (default latest)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"block_number":{"type":"number"},"timestamp":{"type":"number"},"age_seconds":{"type":"number"},"tx_count":{"type":"number"},"utilization":{"type":"number"},"base_fee_gwei":{"type":"number"},"congested":{"type":"boolean"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/logs":{"get":{"operationId":"chainLogs","summary":"Event logs by contract address and/or indexed topics over a block range via eth_getLogs — the indexing primitive. Defaults to a 25-block window and narrows automatically if the node refuses on result size; every cap and narrowing is reported in the response rather than silently applied. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.02.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"address","in":"query","required":false,"schema":{"type":"string"},"description":"Contract address to filter on (0x...)"},{"name":"topic0","in":"query","required":false,"schema":{"type":"string"},"description":"Event signature topic (32-byte 0x...)"},{"name":"topic1","in":"query","required":false,"schema":{"type":"string"},"description":"Indexed arg 1"},{"name":"topic2","in":"query","required":false,"schema":{"type":"string"},"description":"Indexed arg 2"},{"name":"topic3","in":"query","required":false,"schema":{"type":"string"},"description":"Indexed arg 3"},{"name":"fromBlock","in":"query","required":false,"schema":{"type":"string"},"description":"Start block (decimal or 0x hex)"},{"name":"toBlock","in":"query","required":false,"schema":{"type":"string"},"description":"End block or latest"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"count":{"type":"number"},"total_matched":{"type":"number"},"truncated_logs":{"type":"boolean"},"range_narrowed":{"type":"boolean"},"logs":{"type":"array"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/fee-history":{"get":{"operationId":"chainFeeHistory","summary":"EIP-1559 fee history via eth_feeHistory: base-fee trend over N blocks, priority-fee percentiles (10/50/90), mean block utilization, and a recommended maxFeePerGas / maxPriorityFeePerGas with its reasoning stated. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.02.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"blocks","in":"query","required":false,"schema":{"type":"string"},"description":"Recent blocks to sample, 1-100 (default 20)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"base_fee_gwei":{"type":"object"},"priority_fee_gwei":{"type":"object"},"trend":{"type":"string"},"change_pct":{"type":"number"},"recommended":{"type":"object"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/token":{"get":{"operationId":"chainTokenMeta","summary":"ERC-20 identity read straight off the contract — name, symbol, decimals, total supply, plus an eth_getCode existence check. Because it reads the contract and not an indexer, it answers for tokens minted minutes ago and on chains no explorer covers. Legacy bytes32 name/symbol are decoded; a missing decimals() is flagged rather than silently assumed. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"token","in":"query","required":false,"schema":{"type":"string"},"description":"ERC-20 contract address (0x...)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"name":{"type":"string"},"symbol":{"type":"string"},"decimals":{"type":"number"},"total_supply":{"type":"number"},"is_erc20":{"type":"boolean"},"decimals_assumed":{"type":"boolean"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/confirmations":{"get":{"operationId":"chainConfirmations","summary":"Transaction finality: status, block, current tip, confirmation count, gas used, effective gas price, fee paid and log count — then compared against this chain's own finality threshold (Ethereum 64, Polygon 128, OP-stack 60) to return final and blocks_to_final. Distinguishes 'no receipt yet' from 'failed', which agents routinely conflate. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"hash","in":"query","required":false,"schema":{"type":"string"},"description":"Transaction hash (0x + 64 hex)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"status":{"type":"string"},"confirmations":{"type":"number"},"final":{"type":"boolean"},"blocks_to_final":{"type":"number"},"finality_threshold":{"type":"number"},"fee_native":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/l1-fee":{"get":{"operationId":"chainL1Fee","summary":"The OP-stack L1 data-availability fee paid on top of L2 execution gas — usually the larger half of the bill and the half ordinary gas estimators omit. Answered by the chain's own GasPriceOracle.getL1Fee rather than a reimplemented formula, so it stays correct across Ecotone, Fjord and later forks. Pass data=0x... to price a real transaction exactly. Base and Optimism only. $0.02.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|optimism (OP-stack only)"},{"name":"bytes","in":"query","required":false,"schema":{"type":"string"},"description":"Transaction size in bytes, 1-200000 (default 1200)"},{"name":"data","in":"query","required":false,"schema":{"type":"string"},"description":"0x calldata of your actual transaction — priced exactly"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"l1_fee_wei":{"type":"string"},"l1_fee_eth":{"type":"number"},"l1_fee_usd":{"type":"number"},"l1_fee_usd_per_1000_tx":{"type":"number"},"l1_base_fee_gwei":{"type":"number"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/nft":{"get":{"operationId":"chainNft","summary":"ERC-721 owner and metadata in one call — ownerOf, tokenURI, collection name and symbol, with the tokenURI classified as ipfs / on-chain data URI / http so an agent knows how to fetch it. Read from the contract, so it is correct for tokens minted seconds ago. When ownerOf reverts it names the three real causes instead of returning a bare null. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. $0.01.","tags":["x402"],"x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.090000"},"protocols":[{"x402":{}},{"mpp":{"method":"","intent":"","currency":""}}]},"parameters":[{"name":"contract","in":"query","required":false,"schema":{"type":"string"},"description":"ERC-721 contract address (0x...)"},{"name":"token_id","in":"query","required":false,"schema":{"type":"string"},"description":"Token ID (decimal or 0x hex)"},{"name":"chain","in":"query","required":false,"schema":{"type":"string"},"description":"base|ethereum|optimism|arbitrum|polygon|gnosis (default base)"}],"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"type":"object","properties":{"owner":{"type":"string"},"exists":{"type":"boolean"},"token_uri":{"type":"string"},"collection_name":{"type":"string"},"metadata_hint":{"type":"string"}}}}}},"402":{"description":"Payment Required"}}}},"/chain/batch":{"get":{"operationId":"chainBatch","summary":"Up to TEN on-chain reads for a single payment, run in parallel: native balance, nonce, contract-code check, ERC-20 balance, block number and gas price in any combination. 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