{"uid":"cap_YCvdho4xCNJCYZGILT_sk","slug":"apiosk-gateway-signed-spot-price-market-price-attestation-78157f9b","name":"Apiosk Gateway: Signed Spot Price (Market Price Attestation)","description":"Return a signed spot price for a token in a quote currency (default USD) from a public keyless source (CoinGecko). The JWS-HS256 envelope is a provenance receipt an agent keeps for every few-cent call, verifiable via /verify.","url":"https://gateway.apiosk.com/attestations/market-price","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.022","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__xinO5LmqsaBw4UQCI0Vu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a JWS-HS256 signed spot price for a cryptocurrency token in a specified quote currency (default USD), sourced from CoinGecko, serving as a verifiable provenance receipt.","exampleAgentPrompt":"What's the current spot price of Bitcoin in USD? I need a signed attestation receipt I can verify later.","exampleUseCases":[{"title":"On-chain agent price audit trail","prompt":"Fetch me the current signed spot price of ETH in USD — I need the JWS attestation receipt so I can prove the price I used for this trade decision later."},{"title":"DeFi bot price feed verification","prompt":"Get me a verifiable market price for SOL in USDC right now, with a cryptographic receipt I can check against the /verify endpoint."},{"title":"Portfolio valuation snapshot","prompt":"What's the signed spot price of LINK in EUR from CoinGecko right now? I want the attestation so I have a timestamped, auditable record for my portfolio snapshot."}],"resultDescription":"A JWS-HS256 signed envelope containing the spot price of the requested token in the specified quote currency (defaulting to USD), sourced from CoinGecko. The envelope acts as a provenance receipt that can be verified later via the /verify endpoint, including price, token identifier, quote currency, and timestamp.","failureModes":["Unknown or unsupported token identifier returns an error or empty price","CoinGecko API unavailability causes downstream failure","Invalid quote currency parameter causes a 400-level error","Network timeout or rate limiting on the CoinGecko source","Malformed request body results in a validation error"],"whenToPreferThis":"Choose this endpoint when you need not just a cryptocurrency spot price but also a cryptographic provenance receipt (JWS-HS256) that proves the price origin and can be verified later. Ideal for AI agents that must maintain an auditable trail of price data used in decisions, on-chain transactions, or financial reporting. Prefer over raw CoinGecko calls when tamper-evidence and verifiability are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:53:20.907Z","isFirstParty":false}