# How to connect 44API to Claude Cowork

```json
{
  "title": "How to connect 44API to Claude Cowork",
  "toolkit": "44API",
  "toolkit_slug": "44api",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/44api/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/44api/framework/claude-cowork.md",
  "updated_at": "2026-08-18T06:20:07.267Z"
}
```

## Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.
This guide walks you through the easiest and most secure way to connect your 44API account to Cowork via Composio Connect, enabling it to validate a customer's EU VAT number, look up company details by tax ID, add office IP to 44API whitelist, and more such actions on your behalf without compromising your account security.

## Also integrate 44API with

- [ChatGPT Work](https://composio.dev/toolkits/44api/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/44api/framework/hermes-agent)

## Connect 44API to Claude Cowork

### Connecting 44API to Claude Cowork
1. Open Customize
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

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

## What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.
With Composio Connect, Cowork can securely access apps like 44API through MCP without you sharing account credentials directly with the agent.

## What is the 44API MCP server, and what's possible with it?

The 44API MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your 44API account. It provides structured and secure access so your agent can perform 44API operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `44API_ADD_WHITELISTED_IP` | Add Whitelisted IP | Add one IPv4 or IPv6 address to the account whitelist using a verification email address. Requires an Enterprise 44API plan. The request contract is documented, but a successful addition has not been live-verified. |
| `44API_LIST_WHITELISTED_IPS` | List Whitelisted IPs | List IP addresses currently allowed by the account whitelist. This operation requires an Enterprise 44API plan; the API rejects lower-tier accounts. |
| `44API_REMOVE_WHITELISTED_IP` | Remove Whitelisted IP | Remove one IPv4 or IPv6 address from the account whitelist. This destructive operation changes account access controls and requires an Enterprise 44API plan. The shared whitelist endpoint's Enterprise gate was live-verified, but its mutating remove branch was not executed live. |
| `44API_VALIDATE_VAT_NUMBER` | Validate VAT Number | Validate one VAT or tax ID for a supported country and return its validity plus any company details available on the connected plan. |

## Supported Triggers

None listed.

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

The 44API MCP server connects Claude Cowork to your 44API account through Composio. Once connected, Cowork can use the available 44API tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build 44API MCP Agent with another framework

- [ChatGPT Work](https://composio.dev/toolkits/44api/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/44api/framework/hermes-agent)

## Related Toolkits

- [Stripe](https://composio.dev/toolkits/stripe) - Stripe is a global online payments platform offering APIs for managing payments, customers, and subscriptions. Trusted by businesses for secure, efficient, and scalable payment processing worldwide.
- [Aiwyn Tax MCP](https://composio.dev/toolkits/aiwyn_tax_mcp) - Aiwyn Tax MCP is a tax estimation service powered by Aiwyn's federal and state tax engine. It helps teams estimate tax outcomes without building tax calculation logic from scratch.
- [Alpaca](https://composio.dev/toolkits/alpaca) - Alpaca is a stock and crypto trading platform for commission-free trading, real-time market data, and algorithmic strategies. Use it to build brokerage apps, trading bots, and portfolio workflows with market connectivity.
- [Alpha vantage](https://composio.dev/toolkits/alpha_vantage) - Alpha Vantage is a financial data platform offering real-time and historical stock market APIs. Get instant, reliable access to equities, forex, and technical analysis data for smarter trading decisions.
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- [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.
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- [Coupa](https://composio.dev/toolkits/coupa) - Coupa is a business spend management platform for procurement, invoicing, and expenses. It helps organizations streamline purchasing, control costs, and gain complete visibility over financial operations.
- [CurrencyScoop](https://composio.dev/toolkits/currencyscoop) - CurrencyScoop is a developer-friendly API for real-time and historical currency exchange rates. Easily access fiat and crypto data for smart, up-to-date financial applications.
- [Daffy](https://composio.dev/toolkits/daffy) - Daffy is a modern charitable giving platform with a donor-advised fund. Easily set aside funds, grow them tax-free, and donate to over 1.7 million U.S. charities.
- [Didit](https://composio.dev/toolkits/didit) - Didit is an identity verification and compliance API platform for KYC, KYB, AML, and fraud prevention. It helps teams onboard users faster while reducing risk and meeting compliance needs.
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- [Eagle doc](https://composio.dev/toolkits/eagle_doc) - Eagle doc is an AI-powered OCR API for invoices and receipts. It delivers fast, reliable, and accurate document data extraction for seamless automation.
- [Elorus](https://composio.dev/toolkits/elorus) - Elorus is an online invoicing and time-tracking software for freelancers and small businesses. Easily manage finances, bill clients, and track work in one place.
- [Eodhd apis](https://composio.dev/toolkits/eodhd_apis) - Eodhd apis delivers comprehensive financial data, including live and historical stock prices, via robust APIs. Easily access reliable, up-to-date market insights to power your apps, dashboards, and analytics.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and 44API MCP?

With a standalone 44API MCP server, the agents and LLMs can only access a fixed set of 44API tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from 44API and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork 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 44API tools.

### Can I manage the permissions and scopes for 44API while using Tool Router?

Yes, absolutely. You can configure which 44API 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 44API data and credentials are handled as safely as possible.

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