{"uid":"cap_Ul-R-355qGKQkYhH0S_AH","slug":"signalharness-search-result-filter-df561f91","name":"SignalHarness Search Result Filter","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/search_result_filter/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":"search_result_filter","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":"search_result_filter","executionId":"example-execution","startedAtMs":0,"amountAtomic":"10000","resultSha256":"d6867aba3ff5959d2d27f8838354255eb0548f9392a5f959eaaab0f66be218d5","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"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_vW0H4RIgYTRDsSY-wDmE8","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":"Filters and validates a JSON search result payload, returning a schema-validated analysis with warnings about caller-supplied data integrity.","exampleAgentPrompt":"Can you run this search result JSON through SignalHarness's search result filter to validate it and flag any data integrity warnings before I use it downstream? Here's the payload: {\"results\":[{\"id\":\"abc\",\"score\":0.92,\"title\":\"Example result\"}]}","exampleUseCases":[{"title":"Validate search API response before processing","prompt":"I just got this JSON back from a search API and I want to make sure it's schema-valid and flag any issues before I feed it into my pipeline — can you run it through the SignalHarness search result filter? Here's the raw response: {\"hits\":[{\"id\":\"1\",\"relevance\":0.85,\"snippet\":\"Best practices for agent design\"}]}"},{"title":"Filter agent-retrieved search data","prompt":"My agent fetched some search results and I need to validate and filter the output before storing it — please send this JSON through the SignalHarness search result filter and tell me if there are any warnings: {\"items\":[{\"url\":\"https://example.com\",\"title\":\"Agent frameworks\",\"score\":0.77}]}"},{"title":"Integrity check on third-party search payload","prompt":"Before I trust this third-party search result payload, can you pass it through the SignalHarness filter to get an integrity analysis and any red flags? The JSON is: {\"results\":[{\"source\":\"partner-api\",\"content\":\"Some result text\",\"rank\":1}]}"}],"resultDescription":"Returns a succeeded status with an analysis_json field containing schema-valid analysis of the submitted data, a warnings array highlighting any data integrity concerns (e.g. reminders to verify caller-supplied data), a service receipt with payment details (network, amount, asset), a SHA-256 hash of the result, and execution metadata including request/execution IDs and latency.","failureModes":["Invalid or malformed JSON string in request_json field causes rejection","Payload exceeds 65536 character limit returns an error","Empty or too-short input (minLength 2) is rejected","Payment failure on the x402 protocol causes the call not to execute","Network issues on Base chain may delay receipt settlement"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call validation and filtering pass on a JSON search result payload before using it in an agent pipeline. It is best suited for agents operating in the x402 micropayment ecosystem on Base that need a fast, auditable integrity check with cryptographic receipts, rather than a full-featured search indexing or ranking service.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T07:03:05.395Z","isFirstParty":false}