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How to integrate Honcho MCP with Atomic Agent

Connect Atomic Agent to Honcho MCP. Retrieve agent memory for customer session, list recent context entries for user, and more using natural language, with authentication handled for you.

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Honcho is a memory, context, and theory-of-mind infrastructure for stateful AI agents. It provides durable agent memory and contextual tooling to keep conversations coherent.

16 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 Honcho.

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 Honcho account. See the Atomic Agent documentation for installation instructions.

Also integrate Honcho with

ChatGPTClaude CoworkHermes

How Atomic Agent connects to Honcho

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 Honcho 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 Honcho. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Honcho 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 Honcho MCP server, and what's possible with it?

The Honcho MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Honcho account. It provides structured and secure access to your workspaces, peers, sessions, messages, and conclusions, so your agent can organize conversations, record context, search memories, retrieve peer representations, and reason about peers on your behalf.

  • Workspace and conversation setup: Have your agent create or retrieve workspaces, peers, and sessions for ongoing interactions.
  • Message-based memory: Let the agent record attributed messages, review session history, and retrieve a specific message when needed.
  • Context search: Direct your agent to semantically search messages across workspaces, peers, or sessions, and search stored conclusions within a workspace.
  • Peer understanding: Instruct your agent to retrieve a curated peer representation or reason over what Honcho has learned about that peer.
  • Conclusion and session management: Have your agent store explicit conclusions, review saved conclusions, list existing sessions, or delete sessions you no longer need.

Use Honcho from Atomic Agent

With your account connected, ask Atomic Agent to work with Honcho 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 Honcho action and event your agent gets out of the box.

Chat With Peer

Run usage-bearing agentic search and reasoning over a peer's learned representation to answer a question.

Create Conclusions

Store a batch of 1-100 explicit conclusions about peers, optionally tied to sessions.

Create Messages

Add a batch of 1-100 attributed messages to a Honcho session.

Delete Session

Permanently delete one known session and its session-scoped data.

Get Message

Return one message by its exact ID within a session.

Get or Create Peer

Return a peer by ID within a workspace, creating it with the supplied metadata and configuration when absent.

Get or Create Session

Return a session by ID, or create it with initial peers, metadata, and configuration when absent.

Get or Create Workspace

Return a workspace by ID, or create it with metadata and configuration when absent.

Get Peer Representation

Return a curated subset of conclusions representing a peer.

List Conclusions

Return one page of stored conclusions in a workspace; use Search Conclusions for semantic retrieval.

List Messages

Return one page of messages in a session; use Get Message for exact-ID retrieval.

List Peers

Return one page of peers in a workspace.

List Sessions

Return one page of sessions in a workspace.

List Workspaces

Return one page of Honcho workspaces visible to the connected admin key.

Search Conclusions

Semantically search stored conclusions in a workspace.

Search Messages

Semantically search messages at workspace, peer, or session scope.

FRAMEWORKS

How to build Honcho MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Honcho MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use Honcho MCP with Claude Cowork

Hermes logo

Hermes

Use Honcho MCP with Hermes

FAQ

Frequently asked questions

With a standalone Honcho MCP server, the agents and LLMs can only access a fixed set of Honcho tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Honcho 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 Honcho tools.

Yes, absolutely. You can configure which Honcho 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 Honcho data and credentials are handled as safely as possible.

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