Integration

Retell integration

Retell is a conversational voice AI platform for building human-like voice agents. Create AI agents with ultra-low latency responses, natural conversation flow, and seamless integrations. Features include custom LLM backends, knowledge bases, call transfer, and real-time analytics. Perfect for customer service automation, appointment scheduling, lead qualification, and virtual receptionists.

Connect Retell How integrations work

Ask it in chat

Say what should happen.
The workflow builds itself.

When this happens, do that in Retell.Built from the 10 Retell tools below, on the connection you add once.

Common Retell use cases

outbound sales calls
call history dashboard
removing unused agents
updating agent prompts
setting up inbound lines
viewing all voice agents
voice selection for agents
retrieving call transcripts
inspecting agent configuration
creating customer support agents

What you can do with Retell

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Agent, 5 operations

create_agentCreate agentPOSTCreates a Retell voice AI agent with configurable voice, LLM, and conversation behavior settings.
delete_agentDelete agentDELETEPermanently deletes a Retell agent.
get_agentGet agentGETRetrieves a Retell agent's full configuration and settings.
list_agentsList agentsGETLists all Retell voice agents in the account.
update_agentUpdate agentPATCHUpdates a Retell agent's configuration with partial updates.

Call, 2 operations

get_callGet callGETRetrieves comprehensive details about a Retell call.
list_callsList callsPOSTLists Retell calls with optional filtering and sorting.

Phone call, 1 operation

create_phone_callCreate phone callPOSTInitiates an outbound phone call with a Retell voice agent.

Phone number, 1 operation

create_phone_numberCreate phone numberPOSTPurchases a phone number through Retell for voice AI calls.

Voice, 1 operation

list_voicesList voicesGETLists all available Retell voices for agent configuration.

Use Retell from Claude Code, Cursor or Codex

Connect Retell in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its Retell operations become tools the client can call, next to every other integration you connected.

Claude Code

claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"

Codex (~/.codex/config.toml)

[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"

Cursor, Claude Desktop and other JSON configs

{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect Retell

Create your workspace
Sign up free. Nothing to install.
Connect Retell once
Add your Retell connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.
Describe the job in chat
The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.

Retell integration FAQ

What can you do with the Retell integration?

LiveContext exposes 10 operations on Retell, covering agent, call, phone call and phone number. Common uses include outbound sales calls, call history dashboard and removing unused agents.