Name: Retell AI
Author: Retell AI, Inc

Description

Build, deploy, and manage AI voice agents that handle phone calls for your business. Retell powers call center automation for receptionists, sales outreach, collections, customer support, and more. Use ChatGPT to create agent prompts, configure call transfers, edit settings, and deploy to live phone numbers - all conversationally.

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App Screenshots

Capabilities

Can Modify Data

Works in Conversation

Links

ChatGPT Store Website Visit Privacy Policy View Terms of Service View

Publisher Intelligence

Insights and recommendations for app publishers. See how your app performs and how to improve discoverability.

Server Status Retell v2.4.0

Tools

Resources

Prompts

Endpoint

https://chatgpt-app.retellai.com/mcp

Last checked: 16h ago

Technical Details

Connection Latency 780ms

30-Day Uptime 100.0%

Tools(28)

Showing 28 of 28 tools

Sorted by toolName

TestedRead-onlyDestructive

Tool	Description	Flags	Test	Last Tested
`check_agent_deployment_status`	Check if an agent is deployed to any phone numbers. Returns the agent's inbound and outbound phone number assignments, and whether the agent is currently active for receiving or making calls	read-only	100%Latency 189ms	Mar 30, 2026
`check_bearer_token`	Check if the current user session has a valid authentication token stored.	read-only	100%Latency 496ms	Mar 29, 2026
`check_selected_workspace`	Check if a workspace has been selected by the user	read-only	100%Latency 309ms	Mar 29, 2026
`create_agent`	Create a Retell AI agent with configuration	—	100%Latency 274ms	Mar 30, 2026
`deploy_agent`	Deploy a voice agent	—	100%Latency 203ms	Mar 30, 2026
`edit_agent_basic_info`	Edit an agent's name and/or language. Ask the user which agent they want to edit and what changes they'd like to make. Gather the agent ID and at least one of: new name or new language. Invoke this tool whenever the user wants to change the agent's language and/or name.	—	100%Latency 421ms	Mar 31, 2026
`edit_agent_calcom_function`	Edit an agent's Cal.com integration which allows the user to book calendar events. Ask the user which agent they want to edit and what changes they'd like to make. Gather the agent ID, the Cal.com API Key, the event type ID, the timezone, and the description (optional).	destructive	100%Latency 418ms	Apr 1, 2026
`edit_agent_end_call_function`	Edit an agent's end_call function. Ask the user which agent they want to edit and what changes they'd like to make. Gather the agent ID and the description/condition for when to end the call.	—	100%Latency 423ms	Mar 31, 2026
`edit_agent_transfer_call_function`	Edit an agent's transfer_call function. Ask the user which agent they want to edit and what changes they'd like to make. Gather the agent ID, the condition for transferring the call, the phone number to transfer the call to, and the transfer type cold/warm.	destructive	100%Latency 415ms	Mar 31, 2026
`edit_agent_voice`	Update the agent's voice.	—	100%Latency 355ms	Mar 30, 2026
`generate_prompt`	Generate agent prompt from configuration	read-only	34%Latency 14.2s	4d ago
`get_chat_completion`	Send a message to the agent in the playground for testing	—	100%Latency 365ms	Mar 29, 2026
`get_phone_numbers`	Get available phone numbers for the session	read-only	100%Latency 370ms	Mar 30, 2026
`get_workspaces`	List the user's workspaces from Retell	read-only	100%Latency 249ms	Mar 30, 2026
`initiate_call`	Start a phone call with the agent for testing	—	100%Latency 304ms	Mar 29, 2026
`list_agents`	Get list of all agents in the workspace	read-only	100%Latency 223ms	Mar 30, 2026
`list_available_agent_voices`	Show all available voices for the agent. User can browse and preview voices before selecting one. After showing this, tell the user: 'Here are the available voices. Feel free to preview and listen to them, then let me know which voice you'd like to use for your agent.'	read-only	100%Latency 230ms	Mar 30, 2026
`preview_agent_prompt_edit`	Generate a preview of modified prompt based on user's change description. Shows diff between original and modified prompt. User can then review and decide to apply or refine further.	read-only	100%Latency 459ms	Mar 31, 2026
`refine_prompt`	Refine agent prompt based on change description (internal widget use)	read-only	100%Latency 1.2s	Mar 30, 2026
`save_bearer_token`	Save bearer token for agent testing	—	100%Latency 364ms	Mar 29, 2026
`save_selected_workspace`	Save selected workspace	—	100%Latency 325ms	Mar 29, 2026
`send_dashboard_link`	Returns an email containing a link to the Retell AI dashboard phone numbers page.	—	100%Latency 586ms	Mar 30, 2026
`show_agent_creation_widget`	Use this widget when the user asks to create or build an agent. Before calling this tool, ask the user for all required fields (name, description, use cases, audience, tone, style, language), using sensible defaults for optional fields. When calling or re-calling this tool, ALWAYS include all previously collected values along with any newly updated field. Treat prior widget state as the source of truth and re-emit it in the tool input. If the user asks to edit a specific field, show this widget again with the updated value merged into the previous inputs.	read-only	100%Latency 312ms	Mar 30, 2026
`show_deploy_agent`	Invoke this tool to deploy an agent to a phone number. The agent must already be created. This tool will show a widget where the user can select a phone number and deploy their agent.	read-only	100%Latency 198ms	Mar 30, 2026
`show_list_agents`	Display all agents in the current workspace. Shows agent details including names, IDs, voices, and languages.	read-only	100%Latency 352ms	Apr 2, 2026
`show_test_agent`	Use this tool to interactively test and evaluate a Retell AI voice agent. It provides a built-in chat interface for real-time text conversations with the agent, as well as the ability to initiate test phone calls to validate voice behavior, conversation flow, and agent responses. This tool is intended for debugging, quality assurance, and behavior validation of Retell AI agents. The user would usually want to test an agent after they have created or deployed one.	read-only	100%Latency 384ms	Apr 2, 2026
`show_workspaces_select`	Display a select input of the user's RetellAI workspaces to allow for modification of selected workspace. Only show when user asked to modify the selected workspace.	read-only	100%Latency 427ms	Apr 2, 2026
`update_agent_prompt`	Update agent prompt in Retell and database (internal widget use)	—	100%Latency 225ms	Mar 30, 2026

Discoverability Score

Fair

65 of 100 — how easily AI agents find your app

Description quality
20/20
Example prompts
0/20
Keyword coverage
0/15
Tool metadata
20/20
Visual assets
13/20
Endpoint health
10/10
Data freshness
15/15

How to Improve

Add at least 2 example prompts. Prompt examples strongly improve app matching and click-through intent.

Increase keyword coverage (discovery + trigger) to improve retrieval for long-tail queries.

Add at least 2 screenshots that show real workflows to increase confidence and conversion.

Read the full discoverability guide →

Technical Details

Status: ENABLED
Type: AI-Powered App
Auth: Requires Login
Listed on: ChatGPT
Added: January 5, 2026
Last synced: 3d ago
Last checked: 16h ago
Version: 2.4.0
Distribution: Ecosystem Directory

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