{"uid":"cap_Hx3rW-VNiRnM5WHT3oe0-","slug":"document-validator-required-fields-source-evidence-checker-33fd7ce5","name":"Document Validator – Required Fields & Source Evidence Checker","description":"Check invoices, contracts, tenders, and text documents for required fields and source evidence before downstream automation.","url":"https://i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/document-validator?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_xBSyH0vxuwi8leADQul8k","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates invoices, contracts, tenders, and text documents for required fields and source evidence before downstream automation.","exampleAgentPrompt":"Can you validate this invoice text to make sure all required fields are present and that there's source evidence for each one before I send it to the payment workflow?","exampleUseCases":[{"title":"Invoice pre-processing before payment automation","prompt":"Before I push this invoice into the payment system, can you check it for all required fields like invoice number, vendor name, line items, and total — and flag anything missing or unsupported by source evidence?"},{"title":"Contract completeness check before signing","prompt":"I have a draft services contract here — can you validate it for required clauses like parties, scope of work, payment terms, and termination conditions, and tell me which ones are missing or lack backing evidence?"},{"title":"Tender document compliance audit","prompt":"We received a tender submission — can you check it against the required fields for our procurement process and highlight any missing sections or fields that don't have supporting evidence?"}],"resultDescription":"Returns a structured validation report indicating which required fields are present, which are missing, and whether source evidence exists for each field. Includes field-level findings and an overall compliance status indicating whether the document passes validation.","failureModes":["Document text is empty or unparseable — returns error indicating no content to validate","Unrecognized document type or profile — returns error with supported document types","Required field list not provided or malformed — validation cannot proceed","Document too large — may return a payload size error","Network or Lambda cold-start timeout on large documents"],"whenToPreferThis":"Choose this endpoint when you need to gate downstream automation on document completeness — specifically when you need to verify that invoices, contracts, tenders, or other text documents contain all required fields AND that those fields are backed by source evidence. Prefer this over generic extraction endpoints when validation and compliance checking (not just extraction) is the goal, and when you need a structured pass/fail result before triggering payment or workflow automation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:37:52.095Z","isFirstParty":false,"canonicalSlug":"document-validator-required-fields-source-evidence-checker-33fd7ce5"}