Connects Claude to Retell AI's voice agent platform for programmatic phone calls and agent orchestration. You get tools to place outbound calls through AI voice agents, manage agent configurations and LLM prompts, and browse available voices for text-to-speech. Useful when you need to trigger phone interactions from a conversational workflow, like booking confirmations or support callbacks, or when you're building voice-first automation that benefits from Claude's reasoning before the call gets placed. Part of Mindstone's 35-connector catalog with stdio transport and published to npm as @mindstone/mcp-server-retell-ai.
claude mcp add --transport stdio io.github.mindstone-mcp-server-retell-ai uvx mcp-server-retell-ai