{"uid":"cap_mprqBZh5b9ev0FEOZ-pP5","slug":"signalharness-fx-pair-list-eb994b40","name":"SignalHarness FX Pair List","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/fx_pair_list/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","maximum":256,"minimum":1},"query":{"type":"string","maxLength":32,"minLength":0}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"count":0,"pairs":[{"asOf":"2026-09-12","base":"USD","name":"example","quote":"USD","symbol":"EUR/USD"}],"source":{"notice":"example","dataset":"example","provider":"example","sourceUrl":"https://example.com/resource","attribution":"example","retrievedAt":"example0000000000000","freeAccessUrl":"https://example.com/resource"},"warnings":["Verify the caller-supplied data before relying on this result."],"retrievedAt":"example0000000000000"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"fx_pair_list","executionId":"example-execution","startedAtMs":0,"amountAtomic":"5000","resultSha256":"02d1c22e5d813f355ce7cc193a8ab2f7fb53afdb3e560a5df3189c383841045e","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wxKDxnYtMoiTWrz-pKJUZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a searchable, paginated list of available foreign exchange currency pairs from a curated dataset.","exampleAgentPrompt":"Can you give me a list of all available FX currency pairs that include USD — up to 50 results?","exampleUseCases":[{"title":"Discover supported forex trading pairs","prompt":"Show me up to 100 available foreign exchange currency pairs so I can see what forex instruments the system supports."},{"title":"Search pairs for a specific currency","prompt":"Search the FX pair list for any pairs containing EUR and return the first 30 results."},{"title":"Validate currency pair availability","prompt":"Check whether GBP/JPY is among the available FX pairs — search for GBP and list up to 20 pairs."}],"resultDescription":"Returns a JSON object containing an array of FX currency pairs, a count of matched pairs, source metadata (dataset name, provider, source URL, attribution, free access URL, retrieval timestamp), any warnings, and a payment receipt with execution details including latency, payment ID, and result hash.","failureModes":["Limit out of range (must be 1–256) returns validation error","Query string exceeding 32 characters rejected","No pairs found matching query returns empty array with count 0","Payment failure results in 402 response before execution","Service temporarily unavailable returns non-succeeded status"],"whenToPreferThis":"Choose this endpoint when you need to enumerate or search the catalog of supported foreign exchange currency pairs, especially before querying rates or data for a specific pair. It is useful for validation, discovery, and populating dropdowns or agent context with available instruments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:50:11.434Z","isFirstParty":false}