---
title: "Connect COR to Retell AI - APIANT.ai"
description: "When \"Create Brand\" fires in COR, your agent runs \"Add Agent\" in Retell AI. Describe the whole flow and it is built, tested on every scenario and kept running."
canonical: "https://apiant.ai/connect/cor-to-retell-ai"
---

# Connect COR to Retell AI

When **Create Brand** fires in [COR](https://apiant.ai/connections/cor), your agent runs **Add Agent** in [Retell AI](https://apiant.ai/connections/retell-ai). Describe the whole flow and it is built, tested on every scenario and kept running.

COR **12** triggers COR **24** actions Retell AI **27** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want COR and Retell AI to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One 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.ai`

Start Claude Code there, approve the server, and sign in in the browser page it opens.

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### 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)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

### Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

Example flows

## What COR can start in Retell AI

- When **Create Brand** in COR then **Add Agent** in Retell AI
- When **Create Client** in COR then **Create Knowledge Base** 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 COR and Retell AI

## Triggers and actions 12 triggers · 51 actions

- Trigger

**Create Brand**

Triggers when a new brand is created in COR.

- Trigger

**Create Client**

Triggers when a new client is created in COR.

- Trigger

**Create Hour**

Triggers when a new time entry is logged in COR.

- Trigger

**Create Invoice**

Triggers when a new transaction is recorded in COR. COR has no separate invoice record, so this watches all transactions, invoices included; use the type field to tell them apart.

- Trigger

**Create Product**

Triggers when a new product is created in COR.

- Trigger

**Create Project**

Triggers when a new project is created in COR.

- Trigger

**Create Task**

Triggers when a new task is created in COR. Returns the new task's details.

- Trigger

**Create User**

Triggers when a new user is created in COR.

- Trigger

**Updated Client**

Triggers when an existing client is changed in COR.

- Trigger

**Updated Project**

Triggers when an existing project is updated in COR.

- Trigger

**Updated Task**

Triggers when a task is changed, such as a new title, status, priority or deadline. Also fires when a new task appears.

- Trigger

**Updated User**

Triggers when a user in COR is created or changed, such as their name, email, role, position or labels.

- Action

**Add brand**

Creates a new brand under a client in COR.

- Action

**Add team**

Creates a new team in COR with a name and, optionally, a description and workspace. Returns the team that was created.

- Action

**Create Client**

Creates a new client in COR with its company details and primary contact, and returns the new client's id.

- Action

**Create Fee**

Creates a fee for a client in COR, with its name, estimate and work order, and optional details such as dates, status and currency. Returns the new fee.

- Action

**Create Hour**

Logs a time entry against a task in COR and returns the new entry's id.

- Action

**Create Invoice**

Creates an invoice (a COR transaction) for the given date, total and currency, optionally linked to a client, and returns the new transaction.

- Action

**Create Project**

Creates a new project for a client in COR and returns the created project.

- Action

**Create Task**

Creates a new task in COR, optionally within a project, and returns the created task.

- Action

**Delete Project**

Deletes a project in COR by its ID.

- Action

**Delete task**

Deletes a task in COR by its ID.

- Action

**Find clients by name**

Returns the clients whose name matches the specified name.

- Action

**Find projects by name**

Returns the COR projects whose name matches the name you search for, including each project's client, project manager, status and budget details.

- Action

**Get client**

Returns a single COR client by its id, including its business name, contact details, website and description.

- Action

**Get project**

Returns a single COR project by its id, including its client, project manager, dates, status, budget figures and assigned labels. An error occurs if the project is not found.

- Action

**Get task**

Returns a single COR task by its id, including its title, project, deadline, status and priority.

- Action

**List clients**

Returns all clients in the COR account, optionally narrowed by filter criteria.

- Action

**List fees**

Returns the fees in the COR account, including each fee's name, estimate, status and dates.

- Action

**List hours**

Returns the time entries logged in the COR account, optionally narrowed by date range, client, project, user, label or team, and sorted as you choose.

- Action

**List products**

Returns all products in the COR account, each with its name, client and brand.

- Action

**List projects**

Returns the company's projects, optionally narrowed by client, team, user, brand, product, dates, status, health or archived state.

- Action

**List tasks**

Returns the tasks in your COR account, optionally narrowed by project, project manager, status and other criteria, and sorted the way you choose.

- Action

**List teams**

Returns the teams in the COR workspace, including each team's name and description.

- Action

**Update Project**

Updates an existing project in COR, changing only the fields you fill in, and returns the updated project.

- Action

**Update Task**

Updates an existing task by its id, changing its title, project, description, deadline, status, priority or archived state, and returns the updated task.

- Action

**Add Agent**

Create a new Retell AI voice agent attached to a response engine (Retell LLM, custom LLM, or conversation flow) and a voice.

- Action

**Create Knowledge Base**

Create a new Retell AI knowledge base from texts, URLs and/or a file.

- Action

**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.

- Action

**Delete Agent**

Deletes an existing Retell AI agent, including all of its versions.

- Action

**Delete Knowledge Base**

Delete an existing knowledge base.

- Action

**Delete Phone Number**

Delete a phone number from your Retell AI account.

- Action

**Delete Retell LLM**

Delete a Retell LLM response engine.

- Action

**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.

- Action

**Get an Agent**

Retrieve the full configuration of a Retell AI voice agent.

- Action

**Get a Phone Number**

Retrieve the details of one phone number in your Retell AI account, including its bound agents, nickname and webhook settings.

- Action

**Get a Retell LLM**

Retrieve the details of a Retell LLM response engine, including its prompt, model, tools and states.

- Action

**Get a Voice**

Retrieve the details of a single Retell AI voice: its name, provider, accent, gender, age and a preview audio link.

- Action

**Get Concurrency**

Gets your Retell AI organization's current number of ongoing calls and its concurrency limits.

- Action

**Get Knowledge Base**

Retrieve the details of a knowledge base, including its processing status and sources.

- Action

**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.

- Action

**List Agents**

Lists the voice and chat agents in the Retell AI account, optionally filtered by channel or by a name/id search.

- Action

**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).

- Action

**List Knowledge Bases**

List all knowledge bases in the Retell AI account.

- Action

**List Phone Numbers**

Lists the phone numbers in your Retell AI account (up to 1000).

- Action

**List Retell LLMs**

Lists the Retell LLM response engines in the account.

- Action

**List Voices**

List all voices available to the Retell AI account.

- Action

**Make a Phone Call**

Start a new outbound phone call from one of your Retell numbers, handled by a Retell voice agent.

- Action

**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.

- Action

**Update Agent**

Updates an existing Retell AI voice agent's latest draft version. Only the fields you fill in are changed.

- Action

**Update Call**

Update the metadata, data storage setting or custom attributes of an existing Retell AI call.

- Action

**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.

- Action

**Update Retell LLM**

Update an existing Retell LLM response engine's configuration (prompt, model, etc).

## Each app on its own

- [ **COR** COR is the all-in-one management solution for creative agencies that automate timesheets, through AI, to...](https://apiant.ai/connections/cor)
- [ **Retell AI** Retell AI is a conversation intelligence platform that turns customer calls into actionable insights.](https://apiant.ai/connections/retell-ai)

Reviews

## What our customers say

## More from COR

- [ **COR to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/cor-to-hubspot)
- [ **COR to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/cor-to-salesforce)
- [ **COR to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/cor-to-slack)
- [ **COR to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/cor-to-google-sheets)
- [ **COR to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/cor-to-gmail)
- [ **COR to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/cor-to-google-calendar)

## More into Retell AI

- [ **HubSpot to Retell AI** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-retell-ai)
- [ **Salesforce to Retell AI** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-retell-ai)
- [ **Slack to Retell AI** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-retell-ai)
- [ **Google Sheets to Retell AI** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-retell-ai)
- [ **Gmail to Retell AI** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-retell-ai)
- [ **Google Calendar to Retell AI** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-retell-ai)

Questions

## COR and Retell AI, answered

###

### What can start an automation from COR?

Any of COR's 12 triggers in the catalog, including Create Brand, Create Client, Create Hour and Create Invoice. 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 COR?

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 COR?

Retell AI has no triggers in the catalog today, so automations start in COR. 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 COR 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 COR 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.
