{"uid":"cap_EELSCGzzQk8y11B7PylRf","slug":"evidence-backed-text-extraction-api-by-4090-agent-c53f3e6b","name":"Evidence-backed Text Extraction API by 4090 Agent","description":"Extract named fields from text into JSON with exact source quotes. Pay per request in USDC via x402; no API key required.","url":"https://x402.hypurring.com/v1/extract?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","description":"Source text to extract from"},"fields":{"type":"array","items":{"type":"string"},"description":"Field names to extract"}}},"responseSchema":{"type":"json","example":{"result":{"amount":{"value":"$18","evidence":"for $18"},"customer":{"value":"Ada","evidence":"to Ada"},"invoice_number":{"value":"42","evidence":"Invoice 42"}}}},"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_9OmBdRg3o5fz520vWdJoM","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":"Extracts named fields from unstructured text into structured JSON, returning both the extracted value and the exact source quote (evidence) for each field.","exampleAgentPrompt":"Pull out the amount, customer name, and invoice number from this text and show me the exact quote from the source for each one: 'Invoice 42 — Thank you for your business, Ada. Your total due is $18.'","exampleUseCases":[{"title":"Invoice data extraction with audit trail","prompt":"Extract the invoice number, total amount, and vendor name from this text and give me the exact quote where each value appears: 'Invoice #1042 issued to Globex Corp. by Acme Supplies. Total due: $4,250 by March 31.'"},{"title":"Contract clause parsing for legal review","prompt":"From this contract excerpt, pull out the effective date, party names, and payment terms, and show me exactly where in the text each value came from: 'This Agreement is entered into on January 15, 2025 between Lighthouse LLC and Beacon Partners. Payment of $12,000 is due within 30 days of signing.'"},{"title":"Support ticket triage field extraction","prompt":"Extract the customer name, product mentioned, and issue type from this support message, with the exact quote that supports each field: 'Hi, I'm Maria and I've been having trouble with my SmartHub router — it keeps dropping connection every evening.'"}],"resultDescription":"A JSON object with one key per requested field; each key maps to an object containing 'value' (the extracted answer) and 'evidence' (the verbatim substring from the source text that supports the extraction).","failureModes":["Field not found in text — value may be null or absent with no evidence quote","Ambiguous text leading to incorrect extraction or wrong evidence span","Malformed input (missing 'text' or 'fields' parameters) resulting in a 400-style error","Payment failure via x402 protocol resulting in a 402 response before extraction occurs","Very long texts may hit token or size limits causing partial or failed extraction"],"whenToPreferThis":"Choose this endpoint when you need both a structured extracted value AND verifiable evidence (the exact source quote) from unstructured text — making it ideal for auditable pipelines such as invoice processing, legal document parsing, or compliance workflows where traceability matters. It is pay-per-call with no API key, making it frictionless for low-volume or ad-hoc extraction tasks. Prefer it over generic LLM extraction when you want a standardized JSON schema with co-located evidence per field.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:32:47.961Z","isFirstParty":false,"canonicalSlug":"evidence-backed-text-extraction-api-by-4090-agent-c53f3e6b"}