SendThisFax
About
Send real faxes to EU institutions from your AI agent, via a pay-per-fax checkout link or a prepaid API key.
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- Categories
- Communication, Productivity
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SendThisFax speaks MCP. Connect Claude Code, Codex or any MCP client and let your agent prepare the fax — you only click the payment link.
New to this?Read the step-by-step guide.
The MCP endpoint ishttps://www.sendthisfax.com/mcp(streamable HTTP, no authentication required).
claude mcp add --transport http sendthisfax https://www.sendthisfax.com/mcp
[mcp_servers.sendthisfax] url = "https://www.sendthisfax.com/mcp"
- Your agent uploads the PDF over plain HTTP — curl, fetch, any client:
curl -F "file=@/path/to/document.pdf" https://www.sendthisfax.com/api/upload
- get_price— price quote for a page count and billing country, VAT included.
- send_fax— submits an uploaded PDF and returns the payment link.
- get_fax_status— live status: pending, sending, delivered or failed.
- check_balance— remaining prepaid credit (API-key mode only).
With prepaid credits there is no payment link at all: connect with your API key andsend_faxdebits your balance and sends immediately. Failed faxes are re-credited.
claude mcp add --transport http sendthisfax https://www.sendthisfax.com/mcp \ --header "Authorization: Bearer stf_live_..."
Buy credits and get your key on theAPI credits page. A REST API is also available:POST https://www.sendthisfax.com/api/v1/faxes. Check your balance and fax history on thedashboard.
- PDFs up to 50 MB and 1000 pages; encrypted PDFs are rejected.
- Pricing is €5.00 for up to 5 pages plus €0.50 per extra page, plus VAT by billing country — same as on the website.
- A plain JSON status endpoint is also available:GET https://www.sendthisfax.com/api/fax/:fax_id
- Use+19898989898as recipient for integration tests.
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