{"uid":"cap_TgsHOoNjj_0PCINEPRQK-","slug":"ledgerproof-fx-rate-lookup-88b9eda7","name":"LedgerProof FX Rate Lookup","description":"Proof-gated data services for autonomous agents. Payment is captured only after the deliverable passes a published acceptance rule that can genuinely fail, and every settled call includes a free cryptographic hash receipt that verifies independently.","url":"https://laen-army-cdp.fly.dev/sol-06-fx-rate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"base":{"type":"string","pattern":"^[A-Za-z]{3}$","description":"ISO-4217 base currency"},"quote":{"type":"string","pattern":"^[A-Za-z]{3}$","description":"ISO-4217 quote currency"}}},"responseSchema":{"type":"json","example":{"base":"USD","rate":0.9213,"quote":"EUR","source":"European Central Bank reference rates via frankfurter.dev","inverse":1.0854,"rate_date":"2026-08-19"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lqgXPG5nNUfct5vmo1bvp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current exchange rate between two ISO-4217 currencies, with a cryptographic hash receipt and proof-gated payment settled only after delivery.","exampleAgentPrompt":"What's the current exchange rate from USD to EUR? I need the rate and the inverse, with a verifiable receipt I can use for reconciliation.","exampleUseCases":[{"title":"Travel budget currency conversion","prompt":"I'm planning a trip to Japan — what's today's exchange rate from USD to JPY so I can figure out how much yen I'll need?"},{"title":"Cross-border invoice reconciliation","prompt":"We're paying a supplier in GBP but our books are in USD — can you get me today's GBP to USD rate from the ECB reference data, with a hash receipt I can attach to the invoice?"},{"title":"Crypto-adjacent stablecoin peg check","prompt":"What's the current EUR to USDC rate? I want to check the EUR peg value and get the inverse rate too."}],"resultDescription":"A JSON object containing the base currency, quote currency, the spot exchange rate, its inverse, the rate date, and the data source (ECB via frankfurter.dev), plus a free cryptographic hash receipt that can be independently verified.","failureModes":["Invalid or unsupported ISO-4217 currency code returns a validation error","Network or upstream ECB data unavailability may cause fetch failures","Rate date may lag real-time by up to one ECB business day","Payment not captured if acceptance rule fails — no charge on failed delivery"],"whenToPreferThis":"Choose this endpoint when you need a verifiable, proof-gated FX rate backed by European Central Bank reference data and want a cryptographic hash receipt for auditing or reconciliation — especially in autonomous agent workflows where trustless payment and delivery verification matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:37:52.263Z","isFirstParty":false}