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How to connect Plaid MCP to Claude Cowork

Connect Claude Cowork to Plaid MCP. List items with highest error rates, show link conversion rates last week, and more using natural language, with authentication handled for you.

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Plaid MCP is Plaid's diagnostics and analytics service for production Items, Link flows, and API metrics. Use it to monitor Link conversion, surface Item health, and understand API volumes quickly.

5 Tools

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 Plaid account to Cowork via Composio Connect, enabling it to list items with highest error rates, show Link conversion rates last week, get API volume trends for last month, and more such actions on your behalf without compromising your account security.

Also integrate Plaid MCP with

ChatGPT WorkHermes

Connecting Plaid 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.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Plaid account

Back in Cowork, ask the agent to connect to Plaid or give it any Plaid-related task.

For example, ask Cowork to:

  • "List items with highest error rates"
  • "Show Link conversion rates last week"
  • "Get API volume trends for last month"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Plaid account is ready to use.

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 Plaid through MCP without you sharing account credentials directly with the agent.

What is the Plaid MCP server, and what's possible with it?

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

TOOLS

Supported Tools

Every Plaid MCP action and event your agent gets out of the box.

Plaid debug item

Diagnose a Plaid item by retrieving its state information.

Plaid get link analytics

Retrieves Plaid Link analytics data for analyzing user conversion and error rates.

Plaid get tools introduction

Returns a list of all available tools with a brief introduction for each.

Plaid get usages

Retrieves usage metrics for Plaid products and services.

Plaid list teams

Retrieve teams associated with the user and present them as a selectable list.

FRAMEWORKS

How to build Plaid MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Plaid MCP with ChatGPT Work

Hermes logo

Hermes

Use Plaid MCP with Hermes

FAQ

Frequently asked questions

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

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 Plaid tools.

Yes, absolutely. You can configure which Plaid 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.

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 Plaid data and credentials are handled as safely as possible.

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