# Single Toolkit MCP (/docs/single-toolkit-mcp)

> For most use cases, we recommend using the [quickstart](/docs/quickstart). This provides dynamic tool access and a much better MCP experience with context management handled by us.

# Install the SDK

**Python:**

```bash
pip install composio
```

**TypeScript:**

```bash
npm install @composio/core
```

# Create an MCP server

### Initialize Composio

**Python:**

```python
from composio import Composio

composio = Composio(api_key="YOUR_API_KEY")
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({
  apiKey: process.env.COMPOSIO_API_KEY
});
```

### Create server configuration

> **Before you begin:** [Create an auth configuration](/docs/auth-configuration/custom-auth-configs) for your toolkit.

**Python:**

```python
server = composio.mcp.create(
    name="my-gmail-server",
    toolkits=[{
        "toolkit": "gmail",
        "auth_config": "ac_xyz123"
    }],
    allowed_tools=["GMAIL_FETCH_EMAILS", "GMAIL_SEND_EMAIL"]
)

print(f"Server created: {server.id}")
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: process.env.COMPOSIO_API_KEY });
const server = await composio.mcp.create("my-gmail-server", {
  toolkits: [
    {
      authConfigId: "ac_xyz123",
      toolkit: "gmail"
    }
  ],
  allowedTools: ["GMAIL_FETCH_EMAILS", "GMAIL_SEND_EMAIL"]
});

console.log(`Server created: ${server.id}`);
```

> You can also create and manage MCP configs from the [Composio dashboard](https://platform.composio.dev?next_page=/mcp-configs).

### Generate user URLs

> Users must authenticate with the toolkits configured in your MCP server first. See [authentication](/docs/authentication) for details.

**Python:**

```python
instance = composio.mcp.generate(user_id="user-123", mcp_config_id=server.id)

print(f"MCP Server URL: {instance['url']}")
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: process.env.COMPOSIO_API_KEY });
const server = { id: 'my-gmail-server' };
const instance = await composio.mcp.generate("user-123", server.id);

console.log("MCP Server URL:", instance.url);
```

### Use with AI providers

> Pass an `x-api-key` header when connecting to Composio MCP. This is required when `require_mcp_api_key` is enabled (default for newly created organizations).

**OpenAI (Python):**

```python
from openai import OpenAI

client = OpenAI(api_key="your-openai-api-key")

mcp_server_url = "https://backend.composio.dev/v3/mcp/YOUR_SERVER_ID?user_id=YOUR_USER_ID"
mcp_headers = {"x-api-key": "YOUR_COMPOSIO_API_KEY"}

response = client.responses.create(
    model="gpt-5",
    tools=[{
        "type": "mcp",
        "server_label": "composio-server",
        "server_url": mcp_server_url,
        "headers": mcp_headers,
        "require_approval": "never",
    }],
    input="What are my latest emails?",
)

print(response.output_text)
```

**Anthropic (Python):**

```python
from anthropic import Anthropic

client = Anthropic(api_key="your-anthropic-api-key")

mcp_server_url = "https://backend.composio.dev/v3/mcp/YOUR_SERVER_ID?user_id=YOUR_USER_ID"
mcp_headers = {"x-api-key": "YOUR_COMPOSIO_API_KEY"}

response = client.beta.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1000,
    messages=[{"role": "user", "content": "What are my latest emails?"}],
    mcp_servers=[{
        "type": "url",
        "url": mcp_server_url,
        "name": "composio-mcp-server",
        "headers": mcp_headers,
    }],
    betas=["mcp-client-2025-04-04"]
)

print(response.content)
```

**Mastra (TypeScript):**

```typescript
import { MCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";

const MCP_URL = "https://backend.composio.dev/v3/mcp/YOUR_SERVER_ID?user_id=YOUR_USER_ID";
const MCP_HEADERS = { "x-api-key": "YOUR_COMPOSIO_API_KEY" };

const client = new MCPClient({
  id: "mcp-client",
  servers: {
    composio: { url: new URL(MCP_URL), headers: MCP_HEADERS },
  }
});

const agent = new Agent({
  id: "assistant",
  name: "Assistant",
  instructions: "You are a helpful assistant that can read and manage emails.",
  model: openai("gpt-5.4"),
  tools: await client.getTools()
});

const res = await agent.generate("What are my latest emails?");
console.log(res.text);
```

# Server management

## List servers

**Python:**

```python
servers = composio.mcp.list()
print(f"Found {len(servers['items'])} servers")

# Filter by toolkit
gmail_servers = composio.mcp.list(toolkits="gmail", limit=20)
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your_api_key' });
const servers = await composio.mcp.list({
  toolkits: [],
  authConfigs: [],
  limit: 10,
  page: 1
});
console.log(`Found ${servers.items.length} servers`);

// Filter by toolkit
const gmailServers = await composio.mcp.list({
  toolkits: ["gmail"],
  authConfigs: [],
  limit: 20,
  page: 1
});
```

## Get server details

**Python:**

```python
server = composio.mcp.get("mcp_server_id")
print(f"Server: {server.name}")
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your_api_key' });
const server = await composio.mcp.get("mcp_server_id");
console.log(`Server: ${server.name}`);
```

## Update a server

**Python:**

```python
updated = composio.mcp.update(
    server_id="mcp_server_id",
    name="updated-name",
    allowed_tools=["GMAIL_FETCH_EMAILS", "GMAIL_SEARCH_EMAILS"]
)
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your_api_key' });
const updated = await composio.mcp.update("mcp_server_id", {
  name: "updated-name",
  allowedTools: ["GMAIL_FETCH_EMAILS", "GMAIL_SEARCH_EMAILS"]
});
```

## Delete a server

**Python:**

```python
result = composio.mcp.delete("mcp_server_id")
if result['deleted']:
    print("Server deleted")
```

**TypeScript:**

```typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your_api_key' });
const result = await composio.mcp.delete("mcp_server_id");
if (result.deleted) {
  console.log("Server deleted");
}
```

# Next steps

- [Providers](/docs/providers): 
Use with Anthropic, OpenAI, and other frameworks

- [Quickstart](/docs/quickstart): 
Build an agent (recommended)

---

📚 **More documentation:** [View all docs](https://docs.composio.dev/llms.txt) | [Glossary](https://docs.composio.dev/llms.mdx/docs/glossary) | [Cookbooks](https://docs.composio.dev/llms.mdx/cookbooks) | [API Reference](https://docs.composio.dev/llms.mdx/reference)

---

# Composio SDK — Instructions for AI Code Generators

**Purpose:** Enforce only the **current** and **correct** patterns for integrating [Composio](https://composio.dev/) tools into AI agents.
**Scope:** All AI-generated code using Composio must follow these guardrails.

---

## 1. Correct Composio Integration

Composio supports two integration modes: **Native Tools** (with a provider package) and **MCP** (no provider package needed).

### Native Tools

```python
# ✅ CORRECT — Python (defaults to OpenAI)
from composio import Composio

composio = Composio()
session = composio.create(user_id="user_123")
tools = session.tools()
# Pass tools to your agent/LLM framework
```

```typescript
// ✅ CORRECT — TypeScript (defaults to OpenAI)
import { Composio } from "@composio/core";

const composio = new Composio();
const session = await composio.create("user_123");
const tools = await session.tools();
// Pass tools to your agent/LLM framework
```

For other providers, pass the provider explicitly. Provider packages follow the naming convention: `composio_<provider>` for Python, `@composio/<provider>` for TypeScript.

### MCP

Use `session.mcp.url` and `session.mcp.headers` with any MCP-compatible client (Claude Desktop, Cursor, OpenAI Agents, etc.). No provider package needed.

---

## 2. CRITICAL INSTRUCTIONS FOR AI MODELS

### 2.1 — ALWAYS DO THE FOLLOWING

1. **Use `composio.create(user_id)`** to create a session — this is the entry point for all Composio integrations.
2. **Use `session.tools()`** for native tool integration or **`session.mcp.url`** for MCP integration.
3. **Import** from the correct provider package (`composio_<provider>` for Python, `@composio/<provider>` for TypeScript).
4. **Pass `user_id` to `composio.create()`**, not to individual tool calls.

### 2.2 — NEVER DO THE FOLLOWING

1. **Do not** instruct users to manually create auth configs or connected accounts before running.
2. **Do not** import from `composio_openai` / `@composio/openai` when using OpenAI Agents SDK — use `composio_openai_agents` / `@composio/openai-agents` instead.

### 2.3 — DISCOURAGED (do not use unless user explicitly asks)

Do **not** generate `composio.tools.get()`, `composio.tools.execute()`, or `composio.provider.handle_tool_calls()` unless the user explicitly requests direct tool execution. These are a supported but **not recommended** low-level interface.


---

## Terminology Migration (old → current)

If you encounter these terms in error messages, old documentation, or user prompts, translate them to the current equivalents. **Do not use the old terms in generated code or explanations.**

| Old term (v1/v2) | Current term (v3) | In code |
|---|---|---|
| entity ID | user ID | `user_id` parameter |
| actions | tools | e.g., `GITHUB_CREATE_ISSUE` is a *tool* |
| apps / appType | toolkits | e.g., `github` is a *toolkit* |
| integration / integration ID | auth config / auth config ID | `auth_config_id` parameter |
| connection | connected account | `connected_accounts` namespace |
| ComposioToolSet / OpenAIToolSet | `Composio` class with a provider | `Composio(provider=...)` |
| toolset | provider | e.g., `OpenAIProvider` |

If a user says "entity ID", they mean `user_id`. If they say "integration", they mean "auth config". Always respond using the current terminology.