Integration
Connect Carbon Voice to Retell AI
When New Action Item Created fires in Carbon Voice, your agent runs Add Agent in Retell AI. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Carbon Voice and Retell AI to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What Carbon Voice can start in Retell AI
When New Action Item Created in Carbon Voice
then Add Agent in Retell AI
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Carbon Voice and Retell AI
Triggers and actions 7 triggers · 51 actions
- Action Item Deleted
Triggers when an action item is deleted.
- New Action Item Created
Triggers when an action item is created.
- New AI Prompt Response Generated
Triggers when AI Prompt happened to a message(s).
- New AI System Prompt Response Generated
Triggers when AI System Prompt happened to a message(s).
- New Message Posted to Conversation
Triggers when a message is posted into a conversation.
- New Message Received
Triggers when a message is received in any conversation (Not includes your own messages).
- New Voice Memo Created
Triggers when a voice memo is created.
- Add folder
Create a folder.
- Add Link Attachments to Message
Add one or more link attachments to a Message.
- Create Action Item
Create an Action Item.
- Create AI Prompt Response
Creates a new Ai response for given prompt and message(s).
- Create Message Share Link
Create a share link for a message.
- Create Voice Memo
Create a Voice Memo from audio file, transcript or links.
- Delete action item
Delete an action item.
- Delete folder
Delete a folder and nested content.
- Find users by email, phone or name
Search users by email, phone or name.
- Get AI Prompt Response
Returns one AI prompt response (prompt, generated responses per language, source messages) by id.
- Get conversation
Get a conversation by id.
- Get message
Get a message by id.
- Get Message Share Link
Returns one message share link by id.
- Get user
Get a user by id.
- List AI Prompts
/prompts (optional owner_type=user|workspace|system, workspace_id) — lists the AI prompts available to the account, returning each prompt's id. Read-only.
- List conversations
List all of the user's conversations (id and name only).
- List conversation users
List users in a conversation.
- List folders
List root folders.
- List messages
List messages.
- List workspaces
List workspaces the user can access.
- Send Direct Message to User(s)
Send a Direct Message to specific User(s).
- Send Message to Conversation
Send a Message to specific Conversation.
- Update Action Item
Update an Action Item.
- Update folder
Rename a folder.
- Add Agent
Create a new Retell AI voice agent attached to a response engine (Retell LLM, custom LLM, or conversation flow) and a voice.
- Create Knowledge Base
Create a new Retell AI knowledge base from texts, URLs and/or a file.
- Create Retell LLM
Create a new Retell LLM Response Engine that can be attached to an agent. This is used to generate response output for the agent.
- Delete Agent
Deletes an existing Retell AI agent, including all of its versions.
- Delete Knowledge Base
Delete an existing knowledge base.
- Delete Phone Number
Delete a phone number from your Retell AI account.
- Delete Retell LLM
Delete a Retell LLM response engine.
- Get a Call
Retrieves the full details of a Retell AI call (phone or web): status, transcript, recording links, post-call analysis, cost and latency.
- Get an Agent
Retrieve the full configuration of a Retell AI voice agent.
- Get a Phone Number
Retrieve the details of one phone number in your Retell AI account, including its bound agents, nickname and webhook settings.
- Get a Retell LLM
Retrieve the details of a Retell LLM response engine, including its prompt, model, tools and states.
- Get a Voice
Retrieve the details of a single Retell AI voice: its name, provider, accent, gender, age and a preview audio link.
- Get Concurrency
Gets your Retell AI organization's current number of ongoing calls and its concurrency limits.
- Get Knowledge Base
Retrieve the details of a knowledge base, including its processing status and sources.
- Import Phone Number
Import a phone number from your own telephony provider (for example a Twilio elastic SIP trunk) into Retell AI and optionally bind agents to it.
- List Agents
Lists the voice and chat agents in the Retell AI account, optionally filtered by channel or by a name/id search.
- List Calls
List calls in the Retell AI account, newest first by default, optionally filtered by agent, status, direction, numbers, time range and more. Returns up to 1000 calls; transcripts and recording URLs are not included (use Get a Call for those).
- List Knowledge Bases
List all knowledge bases in the Retell AI account.
- List Phone Numbers
Lists the phone numbers in your Retell AI account (up to 1000).
- List Retell LLMs
Lists the Retell LLM response engines in the account.
- List Voices
List all voices available to the Retell AI account.
- Make a Phone Call
Start a new outbound phone call from one of your Retell numbers, handled by a Retell voice agent.
- Register Phone Call
Register a phone call placed through your own (custom) telephony, so Retell issues a call id your telephony can connect the audio to.
- Update Agent
Updates an existing Retell AI voice agent's latest draft version. Only the fields you fill in are changed.
- Update Call
Update the metadata, data storage setting or custom attributes of an existing Retell AI call.
- Update Phone Number
Updates the agents, nickname, webhooks, country restrictions, SIP trunk and fallback settings of a phone number in Retell AI. Only the fields you fill in are changed.
- Update Retell LLM
Update an existing Retell LLM response engine's configuration (prompt, model, etc).
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
More from Carbon Voice
Carbon Voice to HubSpotHubSpot is your all-in-one stop for all of your marketing software needs.
Carbon Voice to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
Carbon Voice to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Carbon Voice to Google SheetsGoogle Sheets
Carbon Voice to GmailGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Carbon Voice to Google CalendarGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
More into Retell AI
Questions
Carbon Voice and Retell AI, answered
What can start an automation from Carbon Voice?
Any of Carbon Voice's 7 triggers in the catalog, including New Action Item Created, New AI Prompt Response Generated, New AI System Prompt Response Generated and New Message Posted to Conversation. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Retell AI when something happens in Carbon Voice?
Any of Retell AI's 27 actions, including Create Knowledge Base, Create Retell LLM, Update Agent and Update Call. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Retell AI to Carbon Voice?
Retell AI has no triggers in the catalog today, so automations start in Carbon Voice. If you need the other direction, ask: your agent reads Retell AI's API documentation and adds it.
Do I have to build a connector for Carbon Voice or Retell AI?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Carbon Voice and Retell AI without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.