Openrouter Integration for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Openrouter MCP or direct API to run LLM queries, orchestrate multi-model workflows, compare model responses, and manage AI provider selection through natural language.
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Supported Tools

Tools
Create Chat CompletionTool to generate a chat-style completion.
Create CompletionTool to generate a text completion for a given prompt or set of messages.
Get CreditsTool to get the current api credit balance for the authenticated user.
Get GenerationTool to retrieve a generation result by its unique id.
List Available ModelsTool to list available models via openrouter api.
OpenRouter List Model EndpointsTool to list endpoints for a specific model.
OpenRouter List ProvidersTool to list all ai model providers available through the openrouter api.

Connect Openrouter MCP Tool with your Agent

Python
TypeScript

Install Composio

python
pip install composio claude-agent-sdk
Install the Composio SDK and Claude Agent SDK

Create Tool Router Session

python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
Initialize the Composio client and create a Tool Router session

Connect to AI Agent

python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Openrouter tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('List available LLM models on Openrouter')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
Use the MCP server with your AI agent

Connect Openrouter API Tool with your Agent

Python
TypeScript

Install Composio

python
pip install composio_openai
Install the Composio SDK

Initialize Composio and Create Tool Router Session

python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
Import and initialize Composio client, then create a Tool Router session

Execute Openrouter Tools via Tool Router with Your Agent

python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'List available LLM models from Openrouter'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
Get tools from Tool Router session and execute Openrouter actions with your Agent

Why Use Composio?

AI Native Openrouter Integration

  • Supports both Openrouter MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for running, switching, and orchestrating LLMs via Openrouter

Managed Auth

  • Automatic API key handling for Openrouter
  • Central place to manage and revoke Openrouter credentials
  • Per-user and per-environment credentials—no more hard-coded secrets

Agent Optimized Design

  • Tools tuned for LLM agents—real error and success feedback
  • Comprehensive logs so you know which agent ran which model and when

Enterprise Grade Security

  • Fine-grained RBAC controls for Openrouter usage
  • Scoped access—only the models and actions you approve
  • Full audit trails of every agent/model interaction for compliance

Use Openrouter with any AI Agent Framework

Choose a Framework you want to connect Openrouter with

Frequently Asked Questions

Do I need my own developer credentials to use Openrouter with Composio?

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

Can I use multiple toolkits together?

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

Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

What if the API changes?

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

Used by agents from

Context
ASU
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
ASU
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
ASU
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

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