# How to integrate ConfigCat MCP with Atomic Agent

```json
{
  "title": "How to integrate ConfigCat MCP with Atomic Agent",
  "toolkit": "ConfigCat",
  "toolkit_slug": "configcat",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/configcat/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/configcat/framework/atomic-agent.md",
  "updated_at": "2026-08-14T06:05:34.409Z"
}
```

## 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 ConfigCat.
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 ConfigCat account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate ConfigCat with

- [ChatGPT](https://composio.dev/toolkits/configcat/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/configcat/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/configcat/framework/hermes-agent)

## TL;DR

### How Atomic Agent connects to ConfigCat
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 ConfigCat to Atomic Agent

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

The ConfigCat MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your ConfigCat account. It provides structured and secure access so your agent can perform ConfigCat operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `CONFIGCAT_CREATE_SETTING` | Create Flag or Setting | Create a feature flag or typed setting in a Config. The key must be unique within that Config. |
| `CONFIGCAT_DELETE_SETTING` | Delete Flag or Setting | Permanently delete one ConfigCat feature flag or setting by ID. This cannot be undone; verify the setting ID before calling. |
| `CONFIGCAT_GET_PRODUCT_CONTEXT` | Get Product Context | Return a ConfigCat Product's configs, environments, segments, and tags, including the identifiers and evaluation versions needed to manage flags and targeting. |
| `CONFIGCAT_GET_SETTING_VALUE_V2` | Get Environment Setting Value V2 | Get one Config V2 flag or setting's complete evaluation formula in an Environment, including its optimistic-concurrency version. |
| `CONFIGCAT_LIST_ACCOUNT_HIERARCHY` | List Account Hierarchy | List accessible ConfigCat organizations and products so an agent can resolve the IDs needed by product-scoped tools. |
| `CONFIGCAT_LIST_ENVIRONMENT_VALUES_V2` | List Environment Values V2 | Return every Config V2 feature flag and setting evaluation formula for one Config and Environment, preserving ordered targeting rules and concurrency versions while omitting parent objects and updater data. |
| `CONFIGCAT_LIST_SETTINGS` | List Flags and Settings | List feature flags and settings in one Config, including IDs, keys, types, tags, and metadata needed by value operations. |
| `CONFIGCAT_PATCH_SETTING_VALUE_V2` | Patch Environment Setting Value V2 | Update selected typed fields of one Config V2 evaluation formula while preserving every field the caller omits. |
| `CONFIGCAT_REPLACE_SETTING_VALUE_V2` | Replace Environment Setting Value V2 | Completely replace one Config V2 flag or setting evaluation formula in an Environment. Supply the complete default value, ordered targeting rules, and percentage attribute; omitted state is intentionally reset. |
| `CONFIGCAT_UPDATE_SETTING_METADATA` | Update Flag Metadata | Partially update a flag or setting's name, hint, or complete tag assignment without resetting untouched metadata. |

## 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 ConfigCat from Atomic Agent
With your account connected, ask Atomic Agent to work with ConfigCat 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 ConfigCat MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/configcat/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/configcat/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/configcat/framework/hermes-agent)

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## Frequently Asked Questions

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

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

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

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

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