# How to connect The Companies API MCP with ChatGPT Work

```json
{
  "title": "How to connect The Companies API MCP with ChatGPT Work",
  "toolkit": "The Companies API",
  "toolkit_slug": "thecompaniesapi",
  "framework": "ChatGPT Work",
  "framework_slug": "chatgpt",
  "url": "https://composio.dev/toolkits/thecompaniesapi/framework/chatgpt",
  "markdown_url": "https://composio.dev/toolkits/thecompaniesapi/framework/chatgpt.md",
  "updated_at": "2026-09-10T05:35:45.417Z"
}
```

## Introduction

### How to connect The Companies API MCP with ChatGPT Work
[ChatGPT Work](https://openai.com/chatgpt-work/) is an agent inside ChatGPT built for your most ambitious work. It takes action across your apps and files, stays with a project for hours, and turns a goal into finished materials like sheets, slides, and docs - not just answers.
In this guide, I will explain the easiest and most secure way to connect your The Companies API account to ChatGPT Work via Composio Connect, so it can search company profiles, enrich records, build target account lists, and export lists through natural language commands without ever putting your account credentials at risk.

## Also integrate The Companies API with

- [Claude Cowork](https://composio.dev/toolkits/thecompaniesapi/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/thecompaniesapi/framework/hermes-agent)

## TL;DR

### Why use Composio over default connectors?
- Apps with read and write access. Default connectors mostly can read your data. Composio's The Companies API integration lets ChatGPT Work take actions like creating drafts, sending updates, labeling records, and more.
- 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
- One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
- Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
- Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

## Connect The Companies API to ChatGPT Work

### Prerequisites
- A ChatGPT account with access to ChatGPT Work (rolling out across Pro, Enterprise, Edu, Plus, and Business plans). We will use the [ChatGPT desktop app](https://openai.com/chatgpt/download/), which is available on every plan.
- Access to the The Companies API workspace you want to connect.
- [Composio MCP](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=chatgpt&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fchatgpt).
Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.
### Step-by-step: Connect The Companies API to ChatGPT Work
### 1. Open the MCP settings
In ChatGPT Work, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.
### 2. Add the server
Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the The Companies API MCP server, and what's possible with it?

The The Companies API MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your The Companies API account. It provides structured and secure access so your agent can perform The Companies API operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `THECOMPANIESAPI_CREATE_LIST` | Create List | Create an empty static company list with email notifications disabled. |
| `THECOMPANIESAPI_DELETE_LIST` | Delete List | Permanently delete a company list by ID and return the deleted list record. |
| `THECOMPANIESAPI_ENRICH_JOB_TITLE` | Enrich Job Title | Normalize a job title and infer its department and seniority classification. |
| `THECOMPANIESAPI_GET_ACCOUNT_CONTEXT` | Get Account Context | Return the connected user, current team, subscription state, and remaining credit balance. |
| `THECOMPANIESAPI_GET_COMPANY` | Get Company | Return the cached company profile for an exact domain, optionally in a compact form; this tool does not force a paid refresh. |
| `THECOMPANIESAPI_LIST_COMPANIES_IN_LIST` | List Companies In List | Return one page of companies currently contained in a specified company list. |
| `THECOMPANIESAPI_LIST_LISTS` | List Lists | Return one page of company lists owned by the connected account. |
| `THECOMPANIESAPI_RENAME_LIST` | Rename List | Rename an existing company list without changing its query, synchronization, or notification settings. |
| `THECOMPANIESAPI_SEARCH_COMPANIES` | Search Companies | Search the company database with text or structured segmentation conditions and return one page of matching company profiles. |
| `THECOMPANIESAPI_SEARCH_TAXONOMY` | Search Taxonomy | Search provider taxonomy values for industries, technologies, or geographic levels and return normalized identifiers for company filters. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

Once connected, ChatGPT Work can access the The Companies API MCP server via Composio to run actions that you authorize, directly in your workspace.

## Complete Code

None listed.

## How to build The Companies API MCP Agent with another framework

- [Claude Cowork](https://composio.dev/toolkits/thecompaniesapi/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/thecompaniesapi/framework/hermes-agent)

## Related Toolkits

- [HubSpot](https://composio.dev/toolkits/hubspot) - HubSpot is an all-in-one marketing, sales, and customer service platform. It lets teams nurture leads, automate outreach, and track every customer interaction in one place.
- [Pipedrive](https://composio.dev/toolkits/pipedrive) - Pipedrive is a sales management platform offering pipeline visualization, lead tracking, and workflow automation. It helps sales teams keep deals moving forward efficiently and never miss a follow-up.
- [Salesforce](https://composio.dev/toolkits/salesforce) - Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.
- [Apollo](https://composio.dev/toolkits/apollo) - Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.
- [Attio](https://composio.dev/toolkits/attio) - Attio is a customizable CRM and workspace for managing your team's relationships and workflows. It helps teams organize contacts, automate tasks, and collaborate more efficiently.
- [Acculynx](https://composio.dev/toolkits/acculynx) - AccuLynx is a cloud-based roofing business management software for contractors. It streamlines project tracking, lead management, and document sharing.
- [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time.
- [Affinity](https://composio.dev/toolkits/affinity) - Affinity is a relationship intelligence CRM that helps private capital investors find, manage, and close more deals. It streamlines deal flow and surfaces key connections to help you win opportunities.
- [Agencyzoom](https://composio.dev/toolkits/agencyzoom) - AgencyZoom is a sales and performance platform built for P&C insurance agencies. It helps agents boost sales, retain clients, and analyze producer results in one place.
- [Agile CRM](https://composio.dev/toolkits/agile_crm) - Agile CRM is a unified customer management platform combining contacts, sales pipelines, marketing, and support. Use it to centralize customer data, automate campaigns, and manage deals and tickets in one place.
- [Bettercontact](https://composio.dev/toolkits/bettercontact) - Bettercontact is a smart contact enrichment tool for finding emails and phone numbers. It helps boost lead generation with automated, waterfall search across multiple sources.
- [Blackbaud](https://composio.dev/toolkits/blackbaud) - Blackbaud provides cloud-based software for nonprofits, schools, and healthcare institutions. It streamlines fundraising, donor management, and mission-driven operations.
- [Brilliant directories](https://composio.dev/toolkits/brilliant_directories) - Brilliant Directories is an all-in-one platform for building and managing online membership communities and business directories. It streamlines listings, member management, and engagement tools into a single, easy interface.
- [Capsule crm](https://composio.dev/toolkits/capsule_crm) - Capsule CRM is a user-friendly CRM platform for managing contacts and sales pipelines. It helps businesses organize relationships and streamline their sales process efficiently.
- [Centralstationcrm](https://composio.dev/toolkits/centralstationcrm) - CentralStationCRM is an easy-to-use CRM software focused on collaboration and long-term customer relationships. It helps teams manage contacts, deals, and communications all in one place.
- [Clarify MCP](https://composio.dev/toolkits/clarify_mcp) - Clarify MCP is a CRM platform for managing companies, people, deals, meetings, tasks, lists, and campaigns. Use it to centralize CRM data and streamline sales and marketing workflows.
- [Clay MCP](https://composio.dev/toolkits/clay_mcp) - Clay MCP is a prospect enrichment service for researching companies and contacts. It runs enrichment providers and Clay functions to return enriched prospect data.
- [Clientary](https://composio.dev/toolkits/clientary) - Clientary is a platform for managing clients, invoices, projects, proposals, and more. It streamlines client work and saves you serious admin time.
- [Close](https://composio.dev/toolkits/close) - Close is a CRM platform built for sales teams, combining calling, email automation, and predictive dialers. It streamlines sales workflows and boosts productivity with all-in-one communication tools.
- [Close MCP](https://composio.dev/toolkits/close_mcp) - Close MCP is a CRM MCP exposing leads, contacts, opportunities, activities, communications, and workflows. Use it to give agents scoped, auditable access to your CRM data.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and The Companies API MCP?

With a standalone The Companies API MCP server, the agents and LLMs can only access a fixed set of The Companies API tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from The Companies API and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with ChatGPT Work?

Yes, you can. ChatGPT Work fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right The Companies API tools.

### Can I manage the permissions and scopes for The Companies API while using Tool Router?

Yes, absolutely. You can configure which The Companies API scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your The Companies API data and credentials are handled as safely as possible.

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