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How to connect Nango to Claude

Connect Claude Web, Desktop and Cowork to Nango MCP. List all connected crm accounts, trigger manual sync with salesforce provider, and more using natural language, with authentication handled for you.

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Nango is a unified API platform that connects to 250+ SaaS apps across CRM, HR, and accounting. Streamline integrations with one API and simplify data sync across your business tools.

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Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Nango account to Claude via Composio Connect, enabling it to list all connected CRM accounts, trigger manual sync with Salesforce provider, get configuration for all available scripts, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Nango with

Claude CodeCursorChatGPTAntigravityOpenAI Agents SDKClaude Agent SDKCodexGrok BuildVS CodeOpenCodeOpenClawHermesAtomic AgentPiDeepSeek HarnessGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Nango to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

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

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

2. 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 Web, Desktop, and Cowork

3. Connect your Nango account

Back in Claude, ask it to connect to Nango or give it any Nango-related task.

For example, ask Claude to:

  • "List all connected CRM accounts"
  • "Trigger manual sync with Salesforce provider"
  • "Get configuration for all available scripts"

It will prompt you to authenticate and authorize access.

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

What is the Nango Claude Connector, and what's possible with it?

The Nango MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Nango account. It provides structured and secure access to your integrations, so your agent can perform actions like triggering syncs, managing connections, listing providers, and executing workflow actions across 250+ external APIs on your behalf.

  • Connection management and discovery: Effortlessly list all your existing Nango connections, view metadata, or retrieve connection information without exposing sensitive credentials.
  • Provider information and browsing: Ask your agent to list all available providers or fetch detailed configuration info for a specific provider, making it easy to discover and set up new integrations.
  • Triggering workflow actions: Direct your agent to execute custom workflow actions by specifying the connection, provider, and action identifiers—unlocking advanced automation across connected platforms.
  • Manual sync initiation: Have your agent trigger sync processes for any established connection, ensuring your data stays up-to-date across all integrated services.
  • Script configuration retrieval: Let your agent fetch Nango scripts configuration and triggers, enabling more tailored and automated integration flows.

Troubleshooting

1. Why does Claude not use the Composio connector for Nango?

The connector can show as connected, but Claude must use it in each Nango conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Nango again.

2. Why does Claude show an MCP server error before Nango connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Nango.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Nango.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Nango authorization link not work?

The Composio connector is one server. Your Nango account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Nango connection.
  • Composio creates a fresh Nango authorization link.
  • Open that link in your browser and finish the Nango sign-in.

4. Why do Nango actions fail after they worked before?

The Nango connection can expire or lose permission.

  • Ask Claude to inspect the Nango connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Nango account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Nango.
  • If the action still fails with a permission error, check that the connected account has that permission in Nango itself.

5. How do I switch to a different Nango account?

Claude can manage the Nango connection for you.

  • Ask Claude to disconnect or delete the current Nango account.
  • Ask Claude to connect Nango again.
  • Open the new Composio authorization link for Nango.
  • Sign in with the other Nango account in the browser.
  • After the account connects, ask Claude to retry the Nango task.

6. Why is my Nango connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Nango connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Nango tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Nango.
TOOLS

Supported Tools

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

Trigger Nango Action

Trigger a Nango action to execute a workflow or operation.

Add Connection

Tool to add a connection with existing credentials to Nango.

List Connections

List all Nango connections without credentials.

Create Connect Session

Tool to create a new connect session with a 30-minute lifespan for enabling connection creation via Connect UI.

Create Integration

Tool to create a new integration in Nango.

Delete Connection

Tool to delete a specific Nango connection.

Delete Integration

Tool to delete a specific integration by its unique key.

Edit Connection

Tool to edit a connection's tags and metadata.

Get Connection with Credentials

Retrieve a specific connection with its credentials.

Get Environment Variables

Tool to retrieve environment variables from the Nango dashboard.

Get Integration

Retrieve detailed configuration for a specific Nango integration by its unique key.

Proxy GET Request

Tool to make a GET request with Nango's Proxy to forward requests to external APIs while managing authentication.

Get Sync Status

Tool to get the status of specified sync(s) for a connection or all connections.

List Connections

Tool to list all connections without credentials.

List Integrations

Tool to retrieve a list of all configured integrations.

Get Provider Details

Retrieve detailed configuration for a specific Nango provider by its unique key.

List Providers

Tool to retrieve a list of all available providers.

Proxy PUT Request

Tool to make a PUT request with the Nango Proxy to forward requests to external APIs while managing authentication.

Reconnect Session

Create a new connect session to reconnect to a specific integration.

Get Integration Functions Configuration

Retrieve all integration functions configuration from Nango.

Set Connection Metadata

Tool to set custom metadata for one or more Nango connections.

Trigger Sync

Tool to trigger sync process(es) manually.

Update Connection Metadata

Tool to edit custom metadata for one or multiple connections.

Update Integration

Tool to update an existing integration's configuration.

FRAMEWORKS

How to build Nango MCP Agent with another framework

Claude Code logo

Claude Code

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Cursor logo

Cursor

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ChatGPT logo

ChatGPT

Use Nango MCP with ChatGPT

Antigravity logo

Antigravity

Use Nango MCP with Antigravity

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Nango MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Nango MCP with Claude Agent SDK

Codex logo

Codex

Use Nango MCP with Codex

Grok Build logo

Grok Build

Use Nango MCP with Grok Build

VS Code logo

VS Code

Use Nango MCP with VS Code

OpenCode logo

OpenCode

Use Nango MCP with OpenCode

OpenClaw logo

OpenClaw

Use Nango MCP with OpenClaw

Hermes logo

Hermes

Use Nango MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Nango MCP with Atomic Agent

Pi logo

Pi

Use Nango MCP with Pi

DeepSeek Harness logo

DeepSeek Harness

Use Nango MCP with DeepSeek Harness

Google ADK logo

Google ADK

Use Nango MCP with Google ADK

LangChain logo

LangChain

Use Nango MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Nango MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Nango MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Nango MCP with LlamaIndex

CrewAI logo

CrewAI

Use Nango MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Nango MCP with Pydantic AI

AutoGen logo

AutoGen

Use Nango MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Nango MCP server, the agents and LLMs can only access a fixed set of Nango tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Nango 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 Nango tools.

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

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