Nango MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Nango MCP or direct API to fetch external SaaS data, sync customer records, automate CRM updates, and trigger HR or accounting workflows through natural language.

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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.

24 Tools

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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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.

SETUP GUIDE

Connect Nango MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["nango"],
  mcp: true,
});
Create a session scoped to Nango and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "List all active Salesforce connections in my account",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Nango request
SETUP GUIDE

Connect Nango API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["nango"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Nango
3

Run Nango tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "List all active Salesforce connections in my account" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Nango tool calls through the session, and print the final answer

Why Use Composio?

AI Native Nango Integration

  • Supports both Nango MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Nango data

Managed Auth

  • Built-in API key handling with secure storage and rotation
  • Central place to manage, scope, and revoke Nango access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Nango
  • Scoped, least privilege access to Nango resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, Nango requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Nango connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Nango account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Nango actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Nango at any time.

When you connect a Nango account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Nango as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Nango. If Nango lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Nango at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Nango connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Nango rejects the old key. Create a new key in Nango and reconnect the account from the Composio dashboard or by asking your agent to reconnect Nango. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Nango use. Paid plans add higher limits and team features. Your Nango plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Nango accounts).

With Composio, you connect Nango once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

Start with Nango.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Nango tool your agent needs.Free to start.

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