{"uid":"cap_vl3iaQKdzaLoOUSduATkY","slug":"bountycheck-github-bounty-claimability-preflight-40d73a22","name":"BountyCheck - GitHub Bounty Claimability Preflight","description":"Pay-per-call (x402, USDC on Base) API that tells bounty-hunting agents which open-source GitHub bounties are actually claimable.","url":"https://bountycheck.vercel.app/v1/x402/preflight?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"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Public https URL of the endpoint to check"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"url":"https://example.com/paid/route","status":402,"accepts":[{"amount":"10000","scheme":"exact","network":"eip155:8453","price_usd":0.01}],"is_x402":true,"problems":[],"reachable":true,"x402_version":2}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6i3q8UZC4Lf6FIVPDujzM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given GitHub bounty endpoint is actually claimable by verifying it is reachable, x402-compliant, and reporting its payment requirements.","exampleAgentPrompt":"Can you preflight-check this bounty URL for me — https://example.com/bounty/issue-42 — and tell me if it's actually claimable, what payment it requires, and whether there are any problems with it?","exampleUseCases":[{"title":"Pre-claim bounty viability check","prompt":"Before I spend time submitting a fix, can you check if this bounty at https://github-bounty.example.com/v1/issues/123 is actually claimable and what it'll pay me in USDC?"},{"title":"Filter claimable bounties from a list","prompt":"I have this bounty URL https://oss-rewards.example.com/paid/bounty/456 — can you run a preflight on it and tell me if it's live, x402-compliant, and what network it uses?"},{"title":"Debug a broken bounty endpoint","prompt":"My bounty endpoint at https://mybounties.example.com/v1/reward/789 isn't paying out — can you probe it and tell me if it's reachable, what problems it reports, and whether it's a valid x402 endpoint?"}],"resultDescription":"Returns a JSON object with the bounty endpoint URL, HTTP status, list of accepted payment schemes (amount, network, USD price), whether it is x402-compliant, a list of detected problems, and a reachability boolean.","failureModes":["URL is not reachable — reachable: false returned","Endpoint does not respond with 402 — is_x402: false","Malformed or missing URL query parameter — 400 error","Endpoint behind authentication that blocks the probe","Network timeout on the target URL","x402 version mismatch reported in response"],"whenToPreferThis":"Use this endpoint when an AI agent or bounty hunter needs to verify before investing effort whether a specific GitHub or open-source bounty URL is live, x402-compliant, and payable on Base with USDC. Prefer this over manually probing endpoints or guessing claimability from issue descriptions alone.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T21:41:51.653Z","isFirstParty":false,"canonicalSlug":"bountycheck-github-bounty-claimability-preflight-40d73a22"}