How to integrate Higgsfield MCP with Atomic Agent

Connect Atomic Agent to Higgsfield MCP. Create photorealistic product image with background, generate 10 social video clips, 15s each, and more using natural language, with authentication handled for you.

Higgsfield logoHiggsfield
Api Key

Higgsfield is an asynchronous image and video generation service powered by multiple creative AI models. Use it to produce photorealistic images and short videos across diverse model styles and formats.

11 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 Higgsfield.

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

Also integrate Higgsfield with

How Atomic Agent connects to Higgsfield

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

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

Use Higgsfield from Atomic Agent

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

Cancel Request

Cancel a Higgsfield generation request while it is still queued; requests already processing or finished cannot be canceled.

Create Character Reference

Start training a reusable Higgsfield Soul ID character reference from one or more public images.

Estimate Soul V2 Cost

Estimate the authenticated account's credit and USD cost for a fixed Higgsfield Soul V2 Standard image request without starting generation.

Generate Image With References

Submit a Higgsfield Popcorn request that uses one or more reference images and return the request ID used to track the asynchronous result.

Generate Seedance 2 Text Video

Submit a ByteDance Seedance 2.

Generate Image

Submit a text-to-image request to Higgsfield Soul Standard and return the request ID used to track the asynchronous result.

Generate Soul V2 Image

Submit a text-to-image request to Higgsfield Soul V2 and return the request ID used to track the asynchronous result.

Generate Video From Image

Generate a video from a publicly accessible starting image with Higgsfield DOP Lite and return the request ID used to track the asynchronous result.

Get Character Reference

Get a Higgsfield Soul ID character reference and its current training status by ID.

Get Request Status

Get the current state of a Higgsfield generation request and return generated image, video, or audio URLs when complete.

List SOUL V2 Styles

List the SOUL V2 image styles available to the authenticated Higgsfield account, including the style IDs accepted by SOUL V2 generation requests.

FAQ

Frequently asked questions

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

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

Start with Higgsfield.It takes 30 seconds.

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

Start building