{"uid":"cap_Ltzdt6Qx4jHGxuzN2JRY6","slug":"signalharness-agent-handoff-validate-a224279b","name":"SignalHarness Agent Handoff Validate","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/agent_handoff_validate/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"request_json":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Verify the caller-supplied data before relying on this result."],"service_id":"agent_handoff_validate","analysis_json":"{\"example\":\"schema-valid caller-supplied data\"}","evidence_scope":"caller_supplied_data"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"agent_handoff_validate","executionId":"example-execution","startedAtMs":0,"amountAtomic":"5000","resultSha256":"0e9f17ba3b897ec4c0e4e3459ceefdf795ef8dacd32a191b20209b6c62dc9a7a","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_p-ryhzPeqYLnYLqyHymLc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a JSON payload representing an agent handoff request, returning structural analysis, warnings, and a verifiable execution receipt.","exampleAgentPrompt":"Can you validate this agent handoff JSON for me before I pass control to the next agent? Here's the payload: {\"target_agent\":\"researcher\",\"task\":\"summarize quarterly earnings\",\"context\":{\"quarter\":\"Q1\",\"year\":2024}}","exampleUseCases":[{"title":"Pre-flight check before agent delegation","prompt":"Before I hand off this task to my research sub-agent, can you validate this handoff JSON and flag any issues? The payload is: {\"agent\":\"research_bot\",\"task\":\"find top 10 competitors\",\"priority\":\"high\"}"},{"title":"Multi-agent pipeline integrity check","prompt":"I'm building a multi-agent pipeline and I need to verify that each handoff JSON between agents is structurally valid — can you check this one: {\"from\":\"planner\",\"to\":\"executor\",\"instructions\":\"deploy service\",\"params\":{\"env\":\"prod\"}}"},{"title":"Debugging malformed agent handoff","prompt":"My agent orchestration system is failing at the handoff step — can you run this handoff JSON through validation and tell me what warnings or errors come back? Here's the JSON: {\"handoff_type\":\"delegation\",\"payload\":null}"}],"resultDescription":"Returns a JSON object containing a status field ('succeeded' or error), an analysis_json string with structural findings, a list of warnings about the submitted data, an evidence_scope indicator, and a cryptographically verifiable receipt including a SHA-256 result hash, payment ID, request ID, execution ID, network (Base/EIP-155:8453), and USDC amount charged.","failureModes":["Invalid or non-JSON string in request_json — may return a parsing error or schema violation","Payload exceeds 65536 character limit — request rejected","Malformed JSON string shorter than 2 characters — rejected by minLength constraint","Network or payment settlement failure on Base chain — receipt shows failed status","Caller-supplied data warnings always included — results are not independently verified by the service"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call validation of an agent handoff JSON payload before committing to an agent-to-agent delegation in a multi-agent workflow. Useful for pre-flight checks in automated pipelines where structural correctness of handoff instructions is critical and you want an auditable, receipted validation step on Base/USDC infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T07:02:42.070Z","isFirstParty":false}