How to integrate Chatfai MCP with Atomic Agent

Connect Atomic Agent to Chatfai MCP. Get details for harry potter character, show info about sherlock holmes character, and more using natural language, with authentication handled for you.

Chatfai logoChatfai
Api Key

Chatfai is an AI platform that lets users talk to AI versions of fictional characters from books, movies, and games. It offers an engaging, interactive experience for fans to chat, roleplay, and explore creative dialogues.

3 Tools

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 for installation instructions.

Also integrate Chatfai with

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

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. 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.
  3. Ask Atomic Agent to do something in Chatfai. It searches Composio for the right tool.
  4. 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.

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 or inspect the Atomic Agent source code.

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 for the current limits that apply to your connection.

TOOLS

Supported Tools

Every Chatfai action and event your agent gets out of the box.

Get Public Character By ID

Tool to retrieve a public character by its ID.

List Conversations

Tool to list conversations for the authenticated user.

Search Characters

Tool to search for public characters on ChatFAI by name or keyword.

FAQ

Frequently asked questions

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.

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.

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.

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.

Start with Chatfai.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Chatfai tool your agent needs.Free to start.

Start building