Retellai MCP Server

RetellAi MCP Server

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What is the Retellai MCP Server?

RetellAi MCP Server

The short version

This is a Model Context Protocol (MCP) server implementation for RetellAI, allowing AI assistants to interact with RetellAI's voice services.

  • Call Management — Create and manage phone calls and web calls
  • Agent Management — Create and manage voice agents with different LLM configurations
  • Phone Number Management — Provision and configure phone numbers
  • Voice Management — Access and use different voice options

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Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
list_callsLists all Retell calls
create_phone_callCreates a new phone call
create_web_callCreates a new web call
get_callGets details of a specific call
delete_callDeletes a specific call
list_agentsLists all Retell agents
create_agentCreates a new Retell agent
get_agentGets a Retell agent by ID
update_agentUpdates an existing Retell agent
delete_agentDeletes a Retell agent
get_agent_versionsGets all versions of a Retell agent
list_phone_numbersLists all Retell phone numbers
create_phone_numberCreates a new phone number
get_phone_numberGets details of a specific phone number
update_phone_numberUpdates a phone number
delete_phone_numberDeletes a phone number
list_voicesLists all available Retell voices
get_voiceGets details of a specific voice

How to install the Retellai MCP Server

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

From the project documentation. Replace placeholders and example paths before connecting.

Configuration

VariableDescriptionRequired
RETELL_API_KEYDeclared in the maintainer’s client configuration.Check documentation

Example prompts to try

  • “Use Retellai to list calls.”
  • “Use Retellai to create phone call.”
  • “Use Retellai to create web call.”

Frequently asked questions

RetellAi MCP Server Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.