{"uid":"cap_fHXKh0BJQU1H1hF80QDuI","slug":"pounga-agent-preflight-api-cbddc5d1","name":"Pounga Agent Preflight API","description":"Deterministic validation of A2A Agent Card JSON before agent interaction. Paid per request through x402 v2 on Base Mainnet.","url":"https://preflight.pounga.com/v1/preflight/a2a","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{}}}}},"responseSchema":null,"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_8of3cQLk7tEdm4y0p_dhi","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":"Deterministically validates an A2A (Agent-to-Agent) Agent Card JSON payload before initiating agent interaction, ensuring correctness before committing to a live call.","exampleAgentPrompt":"Before I send this agent card JSON to the remote agent, run a preflight validation on it — it's a POST with a JSON body — and tell me if it passes or has any errors.","exampleUseCases":[{"title":"Pre-deployment agent card check","prompt":"I'm about to deploy a new A2A agent and I want to validate my agent card JSON first — it's a POST with a JSON body. Can you run a preflight check and tell me if everything looks correct before I go live?"},{"title":"Debugging malformed agent card","prompt":"My agent-to-agent call keeps failing and I think my agent card might be malformed. Can you run a preflight validation on this JSON body as a POST request and tell me exactly what's wrong with it?"},{"title":"CI pipeline agent card validation","prompt":"As part of our build process, validate this A2A agent card JSON — submitted as a POST with a JSON body — and fail the pipeline if the preflight check returns any errors."}],"resultDescription":"Returns a deterministic validation result indicating whether the submitted A2A Agent Card JSON is well-formed and compliant, along with specific error details or field-level issues if validation fails.","failureModes":["Invalid or missing required 'input' object returns a schema validation error","Unsupported HTTP method (anything other than POST, PUT, PATCH) is rejected","Malformed JSON body causes parse failure","Payment not fulfilled via x402 v2 on Base Mainnet results in 402 Payment Required","Unsupported bodyType enum value triggers input rejection","Network timeout or service unavailability returns 5xx error"],"whenToPreferThis":"Choose this endpoint when you need deterministic, structural validation of an A2A Agent Card JSON payload before initiating an agent-to-agent interaction — especially useful in CI/CD pipelines, pre-deployment checks, or debugging sessions. Prefer this over runtime trial-and-error when correctness of the agent card is critical and you want to avoid wasted live calls or costly downstream failures.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:36:17.259Z","isFirstParty":false}