Composio — 250+ Tool Integrations for AI Agents

What it is

Composio connects AI agents to over 250 external tools and services including GitHub, Slack, Jira, databases, Google Workspace, and more. It handles the complexity of OAuth flows, API key management, and rate limiting so your agent can focus on using the tools. Composio provides Python and JavaScript SDKs and supports the Model Context Protocol (MCP).

Composio is designed for developers building AI agents that need to interact with external services without implementing each integration from scratch.

How it saves time or tokens

Integrating an AI agent with external services requires handling OAuth flows, token refresh, API pagination, error handling, and rate limiting for each service. Composio provides pre-built integrations for 250+ services with managed authentication. Adding a new tool integration takes one line of code instead of days of implementation. The managed auth means you do not need to build OAuth callback endpoints or token storage.

How to use

1. Install Composio and authenticate:

pip install composio-core
composio login
composio add github

1. Use Composio tools in your agent:

from composio import ComposioToolSet, Action
from anthropic import Anthropic

toolset = ComposioToolSet()
tools = toolset.get_tools(actions=[Action.GITHUB_CREATE_ISSUE])

client = Anthropic()
response = client.messages.create(
    model='claude-sonnet-4-20250514',
    tools=tools,
    messages=[{'role': 'user', 'content': 'Create a GitHub issue for the login bug'}],
)

1. Composio handles the GitHub API call with your authenticated credentials.

Example

Connecting an agent to multiple services:

from composio import ComposioToolSet, Action

toolset = ComposioToolSet()

# Get tools for multiple services
tools = toolset.get_tools(actions=[
    Action.GITHUB_CREATE_ISSUE,
    Action.SLACK_SEND_MESSAGE,
    Action.JIRA_CREATE_ISSUE,
    Action.GMAIL_SEND_EMAIL,
])

# Pass to your LLM - the agent can now:
# - Create GitHub issues
# - Send Slack messages
# - Create Jira tickets
# - Send emails
# All with managed authentication

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Common pitfalls

• Not authenticating services before using them. Run composio add <service> for each service you want to use. Without authentication, tool calls will fail with permission errors.
• Giving the agent too many tools at once. Each tool adds to the LLM context, increasing token usage and potentially confusing the model. Provide only the tools relevant to the current task.
• Not handling tool call failures gracefully. External services can be temporarily unavailable. Add retry logic or fallback behavior for critical tool calls.
• Starting with an overly complex configuration instead of defaults. Begin with the minimal setup, verify it works, then customize incrementally. This approach catches configuration errors early and keeps troubleshooting straightforward.