{"uid":"cap_vHKLqYTpIbUcsILR7Bw6m","slug":"47620-x402-solana-signature-check-endpoint-f3b67ba0","name":"47620 x402 Solana Signature Check Endpoint","description":"Non-custodial x402 payment gateway on Solana (1% on-chain fee) plus a pay-per-call Solana data API for agents: token price, account balances, tx lookup, trending DEX pairs, network health. No signup, no API key — pay USDC per call.","url":"https://47620.xyz/x/sign-check/9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["ok"],"properties":{"ok":{"type":"boolean"}},"description":"JSON payload returned after a settled x402 payment. Exact keys depend on the route; every paid route returns ok:true on success."}}},"responseSchema":{"type":"json","example":{"ok":true,"data":{},"endpoint":"/x/sign-check/9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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_UPK2kHUkEy1PnzOQFLJl2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies a Solana signature/account via pay-per-call x402 payment, returning validation status for a specific on-chain address.","exampleAgentPrompt":"Check if the Solana account 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu has a valid signature — I'll pay 0.02 USDC per call, no API key needed.","exampleUseCases":[{"title":"Verify Solana signer before transaction","prompt":"Before I process this transfer, can you verify that the Solana account 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu has a valid signature? Just pay the tiny USDC fee per check."},{"title":"On-chain auth check for agent workflow","prompt":"My agent needs to confirm a Solana wallet signature is valid as part of an automated DeFi workflow — run the sign-check for address 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu and tell me if it comes back ok."},{"title":"No-signup Solana signature audit","prompt":"I don't want to sign up for any service — just do a quick pay-per-call signature validation on the Solana account 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu and return whether it's valid."}],"resultDescription":"Returns a JSON object with ok: true on success, plus a data object and the endpoint path. Indicates whether the queried Solana signature/account passes validation.","failureModes":["Payment not settled — returns 402 if USDC payment via x402 is not completed","Invalid or unknown account address — may return ok: false or empty data","Network congestion on Solana — delayed response or timeout","Malformed request — missing required input fields returns error","Insufficient USDC balance — payment fails, endpoint not called"],"whenToPreferThis":"Choose this endpoint when you need keyless, no-signup Solana signature or account validation and are willing to pay micro-USDC per call via x402. Ideal for AI agents that need on-chain verification without managing API credentials, especially in automated DeFi or Web3 workflows on Solana.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T12:35:21.596Z","isFirstParty":false,"canonicalSlug":"47620-x402-solana-signature-check-endpoint-f3b67ba0"}