# How to integrate Chatfai MCP with Atomic Agent

```json
{
  "title": "How to integrate Chatfai MCP with Atomic Agent",
  "toolkit": "Chatfai",
  "toolkit_slug": "chatfai",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/chatfai/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/chatfai/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:07:41.763Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Chatfai.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Chatfai account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Chatfai with

- [OpenAI Agents SDK](https://composio.dev/toolkits/chatfai/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/chatfai/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/chatfai/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/chatfai/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/chatfai/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/chatfai/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/chatfai/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/chatfai/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/chatfai/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/chatfai/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/chatfai/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/chatfai/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/chatfai/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/chatfai/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/chatfai/framework/autogen)

## TL;DR

### How Atomic Agent connects to Chatfai
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

## Connect Chatfai to Atomic Agent

### Connect Chatfai to Atomic Agent
- Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key.
- In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
- Ask Atomic Agent to do something in Chatfai. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Chatfai account, then return to Atomic Agent to continue.
### Headless setup
Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

```bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
```

## What is the Chatfai MCP server, and what's possible with it?

The Chatfai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Chatfai account. It provides structured and secure access to the Chatfai platform, so your agent can browse, retrieve, and interact with AI-generated fictional characters from across media on your behalf.
- Fetch character details by ID: Instantly retrieve comprehensive information on any public AI character by providing its unique identifier.
- Access character backgrounds and attributes: Let your agent pull background stories, personality traits, and media origins for specific characters.
- Enable character discovery: Use your agent to surface information about new or trending public characters in the Chatfai ecosystem.
- Integrate character data into chat experiences: Seamlessly incorporate retrieved character info into custom conversational flows or creative projects.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `CHATFAI_CHATFAI_GET_PUBLIC_CHARACTER_BY_ID` | Get Public Character By ID | Tool to retrieve a public character by its ID. Use when you need to fetch details of a single public character by providing its unique ID. |
| `CHATFAI_LIST_CHATFAI_CONVERSATIONS` | List Conversations | Tool to list conversations for the authenticated user. Use when you need to retrieve the user's chat conversations or verify authentication status. |
| `CHATFAI_SEARCH_CHARACTERS` | Search Characters | Tool to search for public characters on ChatFAI by name or keyword. Use when you need to find characters matching a specific search query. |

## Supported Triggers

None listed.

## Troubleshooting

### Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

### Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

### Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Chatfai from Atomic Agent
With your account connected, ask Atomic Agent to work with Chatfai in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo).

## How to build Chatfai MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/chatfai/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/chatfai/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/chatfai/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/chatfai/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/chatfai/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/chatfai/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/chatfai/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/chatfai/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/chatfai/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/chatfai/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/chatfai/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/chatfai/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/chatfai/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/chatfai/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/chatfai/framework/autogen)

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- [Giphy](https://composio.dev/toolkits/giphy) - Giphy is the largest online library for searching and sharing GIFs and stickers. Instantly add vibrant animated content to your apps, chats, and workflows.
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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Chatfai MCP?

With a standalone Chatfai MCP server, the agents and LLMs can only access a fixed set of Chatfai tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Chatfai and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Atomic Agent?

Yes, you can. Atomic Agent fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Chatfai tools.

### Can I manage the permissions and scopes for Chatfai while using Tool Router?

Yes, absolutely. You can configure which Chatfai scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Chatfai data and credentials are handled as safely as possible.

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