Small, fast REST APIs for things you'd rather not build
Cogwork APIs is a suite of focused HTTP APIs — each one does a single job well, returns in one call, and runs on real cloud infrastructure with caching, rate limits, and a free tier. No SDK lock-in, no servers to run.
Six things you can call today
Try any of them free in your browser — no signup — then drop the same call into your app.
Turn any URL into a pixel-perfect PNG, JPEG, or WebP. Full-page capture, custom viewports, cookie-banner hiding, and CDN-cached results.
GET /screenshot?url=…
One URL returns a screenshot, on-page SEO signals, and an AI summary with a 0–100 SEO score and concrete fixes — an instant page audit.
POST /analyze { "url": … }
Send Markdown, get a clean, paginated PDF with real typography and page breaks. Built for invoices, reports, and AI-agent output.
POST /pdf { "markdown": … }
Validate five data types from one endpoint — with a live MX lookup for email deliverability and live EU VIES checks for VAT IDs.
GET /verify?type=email&value=…
Turn invoice JSON into a standards-compliant EU e-invoice — UBL, CII, or a Factur-X PDF — or validate one against the EN 16931 rules.
POST /einvoice { "output": "ubl", … }
Paste a public X post — or a whole thread — and get one clean, CDN-cached image for newsletters, blogs, and slides. Light or dark.
GET /xcard?url=…&theme=dark
Why Cogwork
One call, no plumbing
Each API is a single HTTP request. No SDK to install, no headless browser or PDF library to bundle and babysit.
Production-ready
Real cloud infrastructure with result caching, rate limiting, and CDN-backed outputs — the same engine that powers the free demos.
Free to start
Every API has a free tier of 50 calls/month. Paid plans start at $5/mo and scale to 60,000 — pay only for what you use.
On RapidAPI
One marketplace key works across the suite, with usage dashboards and billing handled for you.
Agent-friendly
Simple JSON in, JSON or binary out — easy to wire into LLM tools and agents. DocForge is also available as an MCP tool.
Honest scope
Small APIs that do one thing well, documented clearly, with predictable output you can build on.
Pricing is the same across every API: Free (50/mo) · $5 (1,000) · $19 (10,000) · $49 (60,000).
FAQ
- How do I get an API key?
- Open any product's RapidAPI listing (the “Get a key” links above), subscribe to the free tier, and you'll get a key that works through the RapidAPI proxy. The in-browser demos use a shared, rate-limited public key so you can try everything first.
- Is there really a free tier?
- Yes — every API includes 50 calls/month free, no credit card to try. Paid plans start at $5/mo only if you need more volume.
- Can I use these from an AI agent?
- Yes. Every endpoint takes simple parameters and returns JSON or a file, which is easy to expose as an agent tool. DocForge also ships as an MCP server.
- What powers the demos on this site?
- The exact same APIs. The free tools you see here are thin wrappers around the production endpoints, so the output you get in the browser is identical to what your code receives.