Send and receive faxes from an AI agent: exact quotes, human approvals, delivery evidence, sandbox.
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io.github.faxforagents/faxforagents-mcp is an MCP server that send and receive faxes from an AI agent: exact quotes, human approvals, delivery evidence, sandbox. Its tool list has not been published yet over http and stdio, requires no API key, and scores 89/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients - only the file and path differ.
{
"mcpServers": {
"faxforagents": {
"env": {
"FAXFORAGENTS_API_KEY": "ffa_test_..."
},
"args": [
"-y",
"faxforagents-mcp"
],
"command": "npx"
}
}
}Are you the author?
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Send and receive faxes from an AI agent: exact quotes, human approvals, delivery evidence, sandbox.
This server supports HTTP transport. Be the first to test it - help the community know if it works.
Five weighted categories - click any category to see the underlying evidence.
No known CVEs.
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The MCP server for Fax for Agents. Send and receive faxes from Claude, Cursor, Codex or any other MCP client.
Website · Quickstart · API reference · SDKs · MCP · Dashboard · Pricing · Changelog · Affiliate program · GitLab
Fax for Agents is a fax API, a hosted MCP server and SDKs built so AI agents can send and receive faxes. It is made by JSB Holdings LLC and built by Synapse.
The hosted server at https://mcp.faxforagents.com/mcp/ takes your API key on every request. The trailing slash matters.
This package implements the same 17 tool names locally over stdio and calls the REST API.
It reads FAXFORAGENTS_API_KEY from the environment and sends it to the API as a bearer credential.
It also serves guide resources and two prompts for sending and receiving faxes.
A test key (ffa_test_...) reaches the sandbox provider only. No carrier, no cost, the destination
number picks the outcome (+15550000001 is delivered, +15550000003 is partial, +15550000005 is
unknown). A live key (ffa_live_...) reaches the carrier and spends the prepaid wallet. Keys are
created at https://app.faxforagents.com.
Without an API key the server starts, lists its tools, resources and prompts, and get_guide and the
guide resources work. Other tools with valid arguments answer ok=false, error_code=invalid_token with setup instructions.
Paste this line into your assistant. It reads the setup page and does the rest, signed in through the browser, in the free sandbox. No key to copy.
Read https://faxforagents.com/setup.md and set up Fax for Agents for me. Start in Sandbox.
A coding agent can also run curl -fsSL https://faxforagents.com/install | sh, which registers the
hosted server with every agent on the machine. The lines below are the same thing by hand.
The package is on the npm registry as faxforagents-mcp, so npx -y faxforagents-mcp works on any machine
with Node 20. npx --yes github:faxforagents/mcp installs straight from GitHub instead (needs git).
llms-install.md has the full forms.
Hosted, the API key on every request.
claude mcp add --transport http faxforagents https://mcp.faxforagents.com/mcp/ --header "Authorization: Bearer ffa_test_..."
Local, the key i