{"uid":"cap_TZ9d0ixFCn9q58lxaeJHK","slug":"fastapi-online-solana-address-signature-lookup-17434385","name":"fastapi.online — Solana Address Signature Lookup","description":"Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.","url":"https://api.fastapi.online/sol-signatures?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string"}}},"responseSchema":null,"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_IAKCAbnIUzGeat6tUgyfG","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":"Looks up transaction signatures associated with a given Solana wallet address","exampleAgentPrompt":"Can you fetch all the transaction signatures for the Solana address 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM?","exampleUseCases":[{"title":"Audit Solana wallet transaction history","prompt":"Pull all transaction signatures for the Solana wallet address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU so I can audit what transactions it has been involved in."},{"title":"Track activity on a known Solana address","prompt":"I want to monitor a suspicious Solana address — can you get all the transaction signatures for DRpbCBMxVnDK7maPM5tGv6MvB3v1sRMC86PZ8okm21hy so I can review what it's been doing?"},{"title":"Verify on-chain activity before DeFi interaction","prompt":"Before I interact with this Solana account, can you look up its transaction signatures for address 4Nd1mBQtrMJVYVfKf2PX98AGuLqfWom1vQQs9VGxNGFe so I can see if it has any history?"}],"resultDescription":"Returns a list of transaction signatures (base-58 encoded strings) associated with the provided Solana wallet address, representing the on-chain transaction history for that account.","failureModes":["Invalid or malformed Solana address returns an error","Address with no transaction history may return an empty list","Network or RPC node issues may cause timeouts","Rate limits or payment failures may block the request"],"whenToPreferThis":"Use this endpoint when you need to retrieve the raw list of transaction signatures for a specific Solana wallet address, as a lightweight blockchain lookup without requiring a full Solana RPC node setup. Prefer this over generic RPC calls when you want a simple pay-per-call interface with no signup overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:48:12.555Z","isFirstParty":false,"canonicalSlug":"fastapi-online-solana-address-signature-lookup-17434385"}