Retell AI

Retrieve details of a specific chat agent by its unique identifier. Use when you need to access chat agent configuration details.

Untrusted display-only summary

Retrieve all versions of a specific chat agent by its unique identifier. Use when you need to access version history of a chat agent.

Untrusted display-only summary

Retrieves the current concurrency and concurrency limits for the organization. Use when you need to check concurrent call capacity and availability.

Untrusted display-only summary

Retrieve details of a specific Conversation Flow by its ID. Use when you need to fetch conversation flow configuration including nodes, version, and settings.

Untrusted display-only summary

Retrieves a shared conversation flow component by its unique identifier. Use when you need to fetch details of a specific conversation flow component.

Untrusted display-only summary

Retrieve details of a specific knowledge base by its unique identifier. Use when you need to access knowledge base configuration including name, status, sources, and refresh settings.

Untrusted display-only summary

Retrieve details of a specific Retell LLM Response Engine by its unique identifier. Use when you need to access LLM configuration including model settings, prompts, tools, states, and knowledge base configurations.

Untrusted display-only summary

Tool to import a phone number from custom telephony and bind agents to it. Use when you need to integrate an existing phone number with Retell AI's system for handling inbound and outbound calls.

Untrusted display-only summary

Retrieves a list of all agents associated with the account.

Untrusted display-only summary

Tool to retrieve a list of all chats associated with the account. Use when you need to view chat history or analyze past conversations.

Untrusted display-only summary

Retrieves a list of all phone numbers associated with the account. An empty result means no phone numbers exist; RETELLAI_BUY_A_NEW_PHONE_NUMBER_BIND_AGENTS must be called before outbound calls can be made.

Untrusted display-only summary

Tool to list batch test jobs for a response engine. Use when you need to retrieve batch testing results for a Retell LLM or conversation flow.

Untrusted display-only summary

Tool to retrieve a list of all chat agents associated with the account. Use when you need to view available chat agents or find specific chat agent configurations.

Untrusted display-only summary

Retrieves a list of all shared conversation flow components. Use when you need to access reusable conversation flow building blocks that can be referenced across multiple conversation flows.

Untrusted display-only summary

Tool to list all conversation flows that can be attached to an agent. Use when you need to retrieve available conversation flows for agent configuration.

Untrusted display-only summary

Tool to retrieve all knowledge bases associated with the account. Use when you need to list or view all available knowledge bases with their details including IDs, names, statuses, sources, and refresh settings.

Untrusted display-only summary

Tool to list all Retell LLM Response Engines that can be attached to an agent. Use when you need to retrieve available LLM configurations including their IDs, models, prompts, tools, and other settings.

Untrusted display-only summary

Tool to list test case definitions for a response engine (Retell LLM or Conversation Flow). Use when you need to retrieve all test cases configured for a specific response engine and optionally a specific version.

Untrusted display-only summary

Tool to list all test case jobs (test runs) for a batch test job. Use when you need to retrieve execution results and details for all tests in a batch.

Untrusted display-only summary

List all voices available to the user. Returns voice details including voice_id, name, provider, accent, gender, age, and preview audio URL.

Untrusted display-only summary

Publishes the latest version of the agent and creates a new draft agent with a newer version. Use when you need to deploy an agent to production.

Untrusted display-only summary

Publishes the latest version of the chat agent and creates a new draft chat agent with a newer version. Use when you need to deploy a chat agent to production.

Untrusted display-only summary

Register a phone call for custom telephony integration with Retell AI. Use when you need to register a call before connecting it to Retell's audio websocket for custom telephony providers.

Untrusted display-only summary

Tool to retrieve call details with filtering options. Use when you need to fetch call records, analyze call history, or monitor call performance.

Untrusted display-only summary

Retrieve call details by ID for web/phone calls, including type, agent ID, status, timestamps, and web access token; covering responses from success to server errors.

Untrusted display-only summary

Tool to retrieve details of a specific phone number from Retell AI. Use when you need to get information about a phone number including its type, timestamps, SIP configuration, and SMS settings. The phone number should be provided in E.164 format.

Untrusted display-only summary

Tool to retrieve details of a specific voice by its voice_id. Use when you need information about a specific voice including its name, provider, accent, gender, age, and preview audio URL.

Untrusted display-only summary

Search for community voices from voice providers. Use when you need to find voices by name, description, or ID, optionally filtering by provider.

Untrusted display-only summary

Update an existing agent's latest draft version. Use when modifying agent configuration, voice settings, or behavior parameters for a Retell AI agent.

Untrusted display-only summary

Update an active call's parameters such as metadata, dynamic variables, or data storage settings. Use when you need to modify call attributes during an ongoing call or update storage settings.

Untrusted display-only summary