RetellAI MCP Server

@abhaybabbar

About RetellAI MCP Server

MCP server for retellai

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "retellai-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@abhaybabbar/retellai-mcp-server"
      ],
      "env": {
        "RETELL_API_KEY": "<your_retellai_token>"
      }
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is RetellAI MCP Server?

This is a Model Context Protocol (MCP) server implementation for RetellAI, allowing AI assistants to interact with RetellAI's voice services. It provides tools for managing calls, agents, phone numbers, and voices, and is intended for developers using AI assistants like Claude Desktop.

How to use RetellAI MCP Server?

Add a configuration block to your Claude Desktop claude_desktop_config.json with the command npx -y @abhaybabbar/retellai-mcp-server and set the environment variable RETELL_API_KEY. Alternatively, run the server from source: install dependencies (npm i), create a .env file with your API key, and execute node src/retell/index.js.

Key features of RetellAI MCP Server

Call management: create, list, get, delete calls
Agent management: create, list, get, update, delete agents
Phone number management: provision, configure, list, delete numbers
Voice management: list and get available voice options
Supports both phone calls and web calls
Integrates with Claude Desktop via MCP

Use cases of RetellAI MCP Server

List all phone numbers associated with a RetellAI account
List and inspect all created voice agents
Create an agent and initiate an outbound call for ordering food
Retrieve details of a specific call or agent by ID
Update or delete existing agents and phone numbers

FAQ from RetellAI MCP Server

How do I obtain an API key for RetellAI MCP Server?

Get your API key from the Retell dashboard at https://dashboard.retellai.com/apiKey.

What dependencies are required to run RetellAI MCP Server?

You need Node.js, npm, and a valid RetellAI API key. The server is run via npx or from source.

Why might Claude Desktop show "No tools available" for RetellAI MCP Server?

This is typically caused by a dependency or version mismatch. Upgrading to the latest package with npx -y @abhaybabbar/retellai-mcp-server@latest often resolves the issue.

Where does data used by RetellAI MCP Server reside?

The server acts as a proxy to RetellAI’s cloud services; all call, agent, phone number, and voice data is stored in RetellAI’s infrastructure.

Frequently asked questions

How do I obtain an API key for RetellAI MCP Server?

Get your API key from the Retell dashboard at https://dashboard.retellai.com/apiKey.

What dependencies are required to run RetellAI MCP Server?

You need Node.js, npm, and a valid RetellAI API key. The server is run via npx or from source.

Why might Claude Desktop show "No tools available" for RetellAI MCP Server?

This is typically caused by a dependency or version mismatch. Upgrading to the latest package with `npx -y @abhaybabbar/retellai-mcp-server@latest` often resolves the issue.

Where does data used by RetellAI MCP Server reside?

The server acts as a proxy to RetellAI’s cloud services; all call, agent, phone number, and voice data is stored in RetellAI’s infrastructure.

Comments

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