REST API for developers
Integrate document verification into any workflow with a simple, well-documented REST API. Submit documents via API, get structured verification results with confidence scores in seconds.
Integrate in hours
Full OpenAPI documentation, SDKs for Python, Node.js and PHP, and a sandbox environment to test without risk.
Real-time webhooks
Receive verification results via push webhooks. No more polling — your system is notified as soon as an analysis completes.
Structured responses
Every response includes extracted data, confidence score, detected anomalies and verification status in a normalized JSON format.
High availability
European-hosted infrastructure with 99.9% uptime, 800 ms average latency and automatic scaling.
How it works
Authentication
Get your API key from the CheckFile dashboard. Authentication uses a Bearer token on every request.
Document submission
Send the document as base64 or via multipart upload with the expected document type. The API accepts PDF, JPEG, PNG and TIFF.
Retrieve results
Fetch results via the status endpoint or configure a webhook to be notified automatically when analysis completes.
Use cases
Client case management platform
The law firm integrates CheckFile into its case management tool. Every document submitted by a client is automatically verified without manual intervention.
Online rental application portal
Rental applications are verified in real time upon submission. The landlord receives an automatic compliance report in under 2 minutes.
Automated supporting document collection
The firm automates client document verification through its accounting software, reducing manual review time by 80%.