How to integrate Alttext ai MCP with Atomic Agent

Connect Atomic Agent to Alttext ai MCP. Generate alt text for new uploaded image, list images missing alt descriptions, and more using natural language, with authentication handled for you.

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Api Key

AltText.ai is a service that generates alt text for images automatically. It helps boost accessibility and SEO for your visual content.

10 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 Alttext ai.

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 Alttext ai account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Alttext ai

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

The AltText.ai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your AltText.ai account. It provides structured and secure access to your image library and account settings, so your agent can generate alt text, process images in bulk, scan pages for images, search your library, and manage image details on your behalf.

  • Alt text generation: Have your agent submit an image to generate descriptive alt text for accessibility and SEO.
  • Bulk image processing: Direct your agent to upload a CSV of image URLs and queue them for alt text generation.
  • Web page image scanning: Let the agent scan a web page or HTML document and queue its images for alt text generation.
  • Image library management: Instruct your agent to list or search images, retrieve their alt text and metadata, update image details, or remove images you no longer need.
  • Account settings and usage: Have your agent check account usage and settings, then update details such as your account name or webhook URL.

Use Alttext ai from Atomic Agent

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

Bulk Create Images

Tool to bulk upload and process a CSV file of image URLs for alt text generation.

Create Image

Tool to add an image and generate alt text.

Delete Image by Asset ID

Tool to delete an image from your library by its asset ID.

Get Account

Tool to retrieve account settings and usage information.

Get Image by Asset ID

Tool to retrieve detailed information about a specific image using its asset ID.

Get Images

Tool to retrieve a paginated list of images in your library, including their alt text and metadata.

Scrape Page for Images

Tool to scrape a web page or HTML document and queue all images for alt text generation.

Search Images

Search for images in your AltText.

Update Account

Tool to update account settings (e.

Update Image by Asset ID

Tool to update an image with new data including asset ID, alt text, and metadata.

FAQ

Frequently asked questions

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

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

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