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What you get for free: Compress PDFs, Word docs, spreadsheets, images, and audio · 1,000 requests/day · 50MB file limit · 18 AI models across 7 providers · Works with Claude, ChatGPT, Gemini, Grok, Perplexity, Copilot & more

Free tier: 1,000 requests/day · 50 MB file limit · Keys start with cf-

Just want to explore? Use key cf-demo to try free — no signup needed.

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Free tier: 1,000 requests/day · Save up to 73% on PDFs, spreadsheets & docs · plain text varies
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API KEY
Try it now — ask a spreadsheet, get the answer (zero AI tokens) 
curl -X POST https://contextforge-api-production.up.railway.app/v1/smart_query \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: YOUR_KEY" \
  -d '{"query":"total revenue by region","filename":"sales.csv","content":"region,product,revenue\nNorth,Widget,1200\nSouth,Gadget,2400\nNorth,Gadget,900\nWest,Widget,3100\nSouth,Widget,1800\nWest,Gadget,2750"}'
# → "Total revenue by region: West 5,850 · South 4,200 · North 2,100" — computed, no AI tokens spent
Use it with Claude right now: 1. Open Claude Code and run: /configure server.url https://contextforge-api-production.up.railway.app
2. Your API key: paste it when prompted
3. Share any file — ContextForge compresses it automatically