Developer access
Connect your application or AI agent to Form Filler. The API uses the same forms, processing engine, account and credits as the app. Activate API access with one existing credit, then use one credit per completed form.
Customer Form Filler API
Upload a PDF or image form and source documents, follow analysis, retrieve answers with evidence, edit or approve them, and download the filled PDF. Your users can review the same form in the app.
Start in My account > API access to create a key. Use the documented /api/v1/form-filler endpoints for your integration.
Activation and pricing
Verify an account, explicitly approve consuming one credit for API activation, then provision a named, scoped key. Replacement and revocation are free. App and API share one remaining/used credit balance. Each completed form uses one credit; corrections and repeat downloads of the same job and target are included within processing limits.
No subscription. Credit pricing is $1 through the first 100 paid uses, then $0.20 each. The API can return a checkout link and payment status; only customer-approved verified payment adds funds.
Build your integration
Use a server-side HTTP client or an agent that can upload files, poll job status and hand account authorization or payment approval to the user. The guide includes a Python workflow client and downloadable sample files.
Three upload and three analysis attempts per job are included. The API guide covers formats, limits, revisions, authentication, credits and recovery.
Owner reporting integration
Authorized service owners can connect aggregate signup metrics through a separate read-only reporting API. A customer Form Filler key does not grant reporting access.