Is CallRail REST free?

Yes, CallRail REST is free to use.

How do I install CallRail REST?

CallRail REST is a local plugin. Install it using PyPI package: callrail-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does CallRail REST need?

CallRail REST requires the following credentials or environment variables: CALLRAIL_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with CallRail REST?

CallRail REST uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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CallRail REST MCP Server

by Pghdma

Developer ToolsUse Caution4.8MCP RegistryLocal

Free

Server data from the Official MCP Registry

CallRail REST API v3 — 49 tools including full CRUD plus agency aggregation tools.

About

CallRail REST API v3 — 49 tools including full CRUD plus agency aggregation tools.

Security Report

4.8

Use Caution4.8High Risk

This is a well-structured MCP server for the CallRail API with comprehensive input validation, proper authentication via environment variables, and appropriate permission scoping. The code demonstrates good security hygiene with extensive validation helpers, safe error handling that truncates sensitive data, and clear safety guards on dangerous operations (billing confirmations, outbound dialing). Minor quality observations around logging and some edge-case handling do not materially affect the security posture. Supply chain analysis found 6 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

3 files analyzed · 11 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

CallRail API key. Get one at Settings > API Keys in your CallRail account (requires Account Admin). Alternatively set CALLRAIL_API_KEY_FILE to a file path containing the key.Required

Environment variable: CALLRAIL_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-pghdma-callrail-mcp": {
      "env": {
        "CALLRAIL_API_KEY": "your-callrail-api-key-here"
      },
      "args": [
        "callrail-mcp"
      ],
      "command": "uvx"
    }
  }
}

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CallRail REST MCP Server

About

Security Report

Findings (11)Action required

Permissions Required

What You'll Need

How to Install

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