Is the Retell AI MCP server free?

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

How do I connect Retell AI to Claude or Cursor?

Connect Retell AI in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

What can my agent do in Retell AI?

It can call 7 tools, including Make Phone Call, Create Phone Number, Get Call, and chain them with steps in other apps inside the same run.

Is it safe to let an agent call Retell AI?

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.

Retell AI MCP server

Give your AI assistant 7 tools it can call in Retell AI, over one server URL.

Retell AI is not a separate install. One Activepieces MCP server exposes it alongside 760+ other apps, behind a single URL.

Start building See the Retell AI integration

Tools: 7
Works with: Any MCP client
Auth: Custom auth
License: MIT, open source
Updated: September 2026

About the Retell AI MCP server

Connect Retell AI once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Retell AI and 760+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Retell AI tools your AI can run

Once connected, your assistant can call any of these Retell AI actions by asking in plain language.

Make Phone Call
Initiate a new outbound phone call using Retell AI agents.
7 fields
Create Phone Number
Buys a new phone number and binds agents.
11 fields
Get Call
Retrieve detailed data of a specific call (e.g., transcript), given a Call ID.
1 field
Get Phone Number
Retrieve full details for an existing phone number in Retell AI.
1 field
Get Voice
Retrieve details for a specific voice model or configuration by ID in Retell AI.
1 field
Get Agent
Fetch details of a Retell AI agent by Agent ID.
2 fields
Custom API Call
Make a custom API call to a specific endpoint
10 fields

Triggers

Retell AI events your agent can watch

These start a run the moment something happens in Retell AI, so work gets picked up on its own.

New Call
Triggers when a new outgoing or incoming call is created.
1 field

Give your assistant Retell AI

Connect Retell AI once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 760+ other apps. Free to start.

Get your server URL Talk to sales

Retell AI MCP, answered.

No. That is the point of it. One Activepieces server exposes Retell AI alongside every other piece you connect, so your client keeps a single connection.