{"uid":"cap_74NbGNMvggkUFxglTNK5U","slug":"synthora-exchange-rates-verified-a57a2b8f","name":"SYNTHORA Exchange Rates Verified","description":"SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-currency deviation in bps and divergence alert >50 bps. The product is the discrepancy: a bad rate breaks a financial agent. Free sources, no key. $0.005 USDC x402 Base.","url":"https://api.hergertsynthora.com/v1/exchange-rates-verified","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"string","description":"SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-cur"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pAkCM_Onb3eGRY1_uqLp6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Cross-verifies FX rates for 160+ currencies between ECB official fixing (frankfurter.app) and market aggregate (open.er-api.com), reporting per-currency deviation in basis points and flagging divergences above 50 bps","exampleAgentPrompt":"Cross-verify the current exchange rates for EUR, GBP, and JPY against USD — compare the ECB official fixing with the market aggregate and alert me if any currency shows a divergence larger than 50 basis points.","exampleUseCases":[{"title":"Pre-trade FX rate sanity check","prompt":"Before I execute this currency conversion for $500,000 USD to EUR, cross-verify the EUR/USD rate between the ECB official fixing and the market rate — tell me the deviation in basis points and warn me if it's over 50 bps."},{"title":"Financial agent data quality guard","prompt":"My trading agent is about to use live FX rates — run a cross-verification check across all 160+ currencies to detect any rates where the ECB fixing and the market aggregate diverge by more than 50 basis points, so I can block bad data before it causes a bad trade."},{"title":"Daily FX divergence monitoring report","prompt":"Give me today's cross-verified FX rate report comparing ECB official rates with the market aggregate, and highlight every currency where the deviation exceeds 50 basis points so I can flag them for review."}],"resultDescription":"Returns cross-verified exchange rates for 160+ currencies with the ECB official fixing rate, the market aggregate rate, per-currency deviation in basis points, and a divergence alert flag for any currency exceeding 50 bps discrepancy between the two sources.","failureModes":["Upstream source unavailable: if frankfurter.app or open.er-api.com is down, rates for affected currencies cannot be cross-verified","Stale data: if either source lags, the deviation may reflect a timing mismatch rather than a genuine discrepancy","Currency not covered by one source: some exotic currencies may only appear in one of the two data providers, preventing cross-verification","Payment failure: x402 USDC payment on Base not processed, call rejected","High-deviation false positives during market open/close when ECB fixing hasn't updated yet"],"whenToPreferThis":"Choose this endpoint when data quality and rate integrity are critical — especially before executing large FX conversions, feeding rates into a financial agent, or auditing third-party FX data. It is uniquely valuable because it provides a dual-source deviation score in basis points rather than just a rate, making it the right choice when you need to trust the data, not just retrieve it. Prefer this over single-source FX APIs whenever a bad rate could cause financial loss or downstream agent errors.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:41:39.505Z","isFirstParty":false}