Oh Fax MCP MCP server

An official MCP server by Oh Fax that enables AI agents to quote, send, and track faxes to US and Canadian numbers. It supports Machine Payments Protocol (MPP) for agent-driven transactions without requiring an account, allowing tools to validate documents, obtain payment links, and retrieve delivery receipts.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Oh Fax

MCP endpoint (Streamable HTTP)

https://app.ohfax.com/mcp

Vendor documentation

What you can do with it

Quote fax prices for US/CA numbers
Send faxes via MPP payment
Track fax delivery status
Fetch delivery receipts

Tools advertised by the last live check:

quote_fax
send_fax
get_fax_status
get_fax_receipt

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http oh-fax-mcp https://app.ohfax.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add oh-fax-mcp --url https://app.ohfax.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable oh-fax-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "oh-fax-mcp": {
      "url": "https://app.ohfax.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "oh-fax-mcp": {
      "type": "streamableHttp",
      "url": "https://app.ohfax.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start oh-fax-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "oh-fax-mcp": {
      "type": "http",
      "url": "https://app.ohfax.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http oh-fax-mcp https://app.ohfax.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "oh-fax-mcp": {
      "url": "https://app.ohfax.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "oh-fax-mcp": {
      "serverUrl": "https://app.ohfax.com/mcp"
    }
  }
}

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