Providers

LlamaIndex

The LlamaIndex provider turns Composio tools into LlamaIndex FunctionTool objects that execute themselves. You connect an account, fetch the tools, hand them to a FunctionAgent, and LlamaIndex drives the calls. The provider ships for both Python and TypeScript.

Install

uv add composio composio_llamaindex llama-index llama-index-llms-openai

Configure API Keys

Set COMPOSIO_API_KEY with your API key from Settings and OPENAI_API_KEY with your OpenAI API key.

.env
COMPOSIO_API_KEY=xxxxxxxxx
OPENAI_API_KEY=xxxxxxxxx

Create session and run

import asyncio
from composio import Composio
from composio_llamaindex import LlamaIndexProvider
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

composio = Composio(provider=LlamaIndexProvider())
llm = OpenAI(model="gpt-5.2")

# Create a session for your user
session = composio.create(user_id="user_123")
tools = session.tools()

agent = FunctionAgent(tools=tools, llm=llm)

async def main():
    result = await agent.run(
        user_msg="Send an email to john@example.com with the subject 'Hello' and body 'Hello from Composio!'"
    )
    print(result)

asyncio.run(main())

Next

What is a session?

How sessions scope users, tools, and auth, and how to reuse them across requests.

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