Convert PDF, Word, PowerPoint, Excel and HTML documents to Markdown for RAG and agents.
flatmark API is a free Documents & Productivity API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
flatmark API reference: endpoints, parameters and examples, with the machine-readable OpenAPI spec at /openapi.json.
Details from flatmark.dev.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Render PDFs and images from HTML (Jinja2, Liquid, Handlebars) or Word templates, with a free tier
AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV
The flatmark API is provided by flatmark (flatmark.dev). flatmark API reference: endpoints, parameters and examples, with the machine-readable OpenAPI spec at /openapi.json.
Yes. The flatmark API is listed in the Documents & Productivity category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The flatmark API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the flatmark API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The flatmark API is served over HTTPS, so it's safe to use in production.