{"uid":"cap_bw_aAxNNk2OZ77WPq0hFE","slug":"24k-labs-pdf-form-fill-d5e2d7e6","name":"24K Labs PDF Form Fill","description":"A curated directory of x402 services — each one on the list on purpose, with the health, uptime, and independent trust grades from across the ecosystem gathered in one place.","url":"https://api.24klabs.ai/api/pdf-form-fill","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"fields":{"type":"object"},"pdf_b64":{"type":"string"}}},"responseSchema":{"type":"json","example":{"pdf_b64":"...","filled_fields":["Name"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jcaW9WMLcDcLpoqmlmR8Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fills a PDF form with provided field values and returns the completed PDF as a base64-encoded string along with a list of filled field names.","exampleAgentPrompt":"Can you fill out this PDF form for me? The form has fields for Name (Jane Doe), Date of Birth (1990-03-15), and Address (123 Main St, Springfield) — here's the PDF file.","exampleUseCases":[{"title":"Automated job application form completion","prompt":"I have a PDF job application form with fields for applicant name (John Smith), email (john@example.com), and years of experience (5). Can you fill it in and give me back the completed PDF?"},{"title":"Pre-filling customer onboarding documents","prompt":"We send new customers a PDF onboarding form. Fill it in with this customer's details: Name is Priya Patel, Company is Acme Corp, and Contract Start Date is 2025-08-01, then return the completed document."},{"title":"Completing a government or legal form","prompt":"I've got a PDF tax form that needs Name (Michael Torres), SSN (XXX-XX-1234), and Filing Status (Single) filled in — can you complete it and send back the filled version as a base64 PDF?"}],"resultDescription":"Returns a JSON object containing `pdf_b64`, a base64-encoded string of the completed PDF document, and `filled_fields`, an array of the field names that were successfully populated.","failureModes":["Invalid or corrupted PDF input — returns an error indicating the file could not be parsed","Field name not found in the PDF form — field may be silently skipped or returned with a warning","Malformed base64 input for the PDF — parsing error returned","Unsupported PDF form type (e.g. XFA forms) — may fail to fill or return partial results","Missing required fields in request body — 400-level error response"],"whenToPreferThis":"Choose this endpoint when you need to programmatically fill a PDF form with known field names and values and receive the completed PDF back as base64. It is ideal for automating document workflows, pre-filling customer or legal forms, or integrating PDF completion into an agent pipeline. Prefer this over generic document generation when you already have a PDF template and simply need to populate its existing fields.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T19:02:27.948Z","isFirstParty":false}