KosmoKrator

productivity

Retell AI MCP, CLI, and Lua Integration for AI Agents

Retell AI integration docs for AI agents: MCP gateway setup, Retell AI CLI commands, Lua API reference, credentials, and function schemas.

Retell AI for agents

Credentials can be configured manually in web or CLI hosts.

Use this integration from Lua code mode, the headless integrations CLI, or the KosmoKrator MCP gateway. The same package metadata powers all three surfaces.

Agent Surfaces

Retell AI CLIHeadless setup, JSON output, direct function calls. Retell AI MCPExpose selected tools to local MCP clients. Retell AI LuaAgent-facing namespace and Lua reference. FeedbackReport missing tools, auth issues, or bad metadata.

Machine-Readable Metadata

integration_slug
retell-ai
route_slug
retell-ai
package
retell-ai
auth_strategy
api_key
cli_setup_supported
true
cli_runtime_supported
true
mcp_gateway_supported
true
lua_supported
true

Function Catalog

FunctionTypeParametersDescription
retell-ai.retell_ai_create_call Write write 3 Create a new AI-powered phone call using a Retell AI voice agent. Specify the agent ID and optional metadata to attach context to the call.
retell-ai.retell_ai_create_web_call Write write 0 Create a Retell web call.
retell-ai.retell_ai_get_call Read read 1 Retrieve details for a specific phone call by its ID. Returns call status, duration, transcript, and associated metadata.
retell-ai.retell_ai_list_calls Read read 1 List phone calls from Retell AI. Returns call records with status, duration, and metadata. Supports optional filters for agent, status, or date range.
retell-ai.retell_ai_update_call Write write 0 Update call metadata.
retell-ai.retell_ai_stop_call Write write 0 Stop an in-progress call.
retell-ai.retell_ai_delete_call Write write 0 Delete a call record.
retell-ai.retell_ai_list_agents Read read 0 List all configured voice agents in your Retell AI account. Returns agent IDs, names, voice settings, and other configuration details.
retell-ai.retell_ai_get_agent Read read 0 Get a voice agent.
retell-ai.retell_ai_create_agent Write write 3 Create a new voice AI agent in Retell AI. Specify the voice ID and system prompt. Additional options like agent name, language, and behavior settings can be provided.
retell-ai.retell_ai_update_agent Write write 0 Update a voice agent.
retell-ai.retell_ai_delete_agent Write write 0 Delete a voice agent.
retell-ai.retell_ai_list_phone_numbers Read read 0 List phone numbers.
retell-ai.retell_ai_get_phone_number Read read 0 Get a phone number.
retell-ai.retell_ai_update_phone_number Write write 0 Update phone number routing.
retell-ai.retell_ai_list_retell_llms Read read 0 List Retell LLMs.
retell-ai.retell_ai_get_retell_llm Read read 0 Get a Retell LLM.
retell-ai.retell_ai_list_voices Read read 0 List voices.
retell-ai.retell_ai_get_voice Read read 0 Get a voice.
retell-ai.retell_ai_get_current_user Read read 0 Retrieve current Retell AI account information, including available agents and account status. Useful for verifying connectivity and understanding account capabilities.
retell-ai.retell_ai_api_get Read read 0 Call a documented GET endpoint.
retell-ai.retell_ai_api_post Write write 0 Call a documented POST endpoint.
retell-ai.retell_ai_api_patch Write write 0 Call a documented PATCH endpoint.
retell-ai.retell_ai_api_delete Write write 0 Call a documented DELETE endpoint.