# AltTextLab

```json
{
  "name": "AltTextLab",
  "slug": "alt_text_lab",
  "url": "https://composio.dev/toolkits/alt_text_lab",
  "markdown_url": "https://composio.dev/toolkits/alt_text_lab.md",
  "logo_url": "https://logos.composio.dev/api/alttextlab",
  "categories": [
    "ai & machine learning"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-19T06:37:10.411Z"
}
```

![AltTextLab logo](https://logos.composio.dev/api/alttextlab)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with AltTextLab MCP or direct API to generate alt text, audit image accessibility, improve SEO descriptions, and prepare accessible image metadata through natural language.

## Summary

AltTextLab is an AI service that generates accessible, SEO-aware alt text for images.
It helps teams make image content easier to understand, index, and publish.

## Categories

- ai & machine learning

## Toolkit Details

- Tools: 2

## Images

- Logo: https://logos.composio.dev/api/alttextlab

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for AltTextLab.
  - Setup:
    - Configure Api Key credentials for AltTextLab.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Generate alt text for product images
- Audit website images missing alt text
- Create SEO alt text for thumbnails

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `ALT_TEXT_LAB_GENERATE_ALT_TEXT` | Generate Alt Text | Generate accessible alt text for a publicly reachable image URL, optionally guided by language, writing style, SEO keywords, product details, and page context. Each generated result consumes one account credit. Do not retry after a timeout or ambiguous provider failure; check account credits first. |
| `ALT_TEXT_LAB_GET_ACCOUNT_CREDITS` | Get Account Credits | Return the connected AltTextLab account's plan, activation state, and current generation credit balance. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
```

#### Path 1, Step 3: Execute AltTextLab Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute AltTextLab actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Generate accessible, SEO-aware alt text for this product image: https://example.com/images/red-running-shoe.jpg'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Generate accessible, SEO-aware alt text for this product image: https://example.com/images/red-running-shoe.jpg'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for AltTextLab
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to AltTextLab tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Generate accessible, SEO-aware alt text for this product image: https://example.com/images/red-running-shoe.jpg')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Generate accessible, SEO-aware alt text for this product image: https://example.com/images/red-running-shoe.jpg'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native AltTextLab Integration

- Supports both AltTextLab MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable alt text generation
- Rich coverage for generating, reviewing, and improving accessible image descriptions

### 2. Managed Auth

- Secure API key handling without hard-coding AltTextLab credentials in your agent
- Central place to manage, scope, and revoke AltTextLab access
- Per user and per environment credentials for safer image workflow automation

### 3. Agent Optimized Design

- Tools are tuned using real error and success rates to improve reliability over time
- Comprehensive execution logs so you always know which images were processed, when, and on whose behalf

### 4. Enterprise Grade Security

- Fine-grained RBAC so you control which agents and users can access AltTextLab
- Scoped, least privilege access to AltTextLab resources
- Full audit trail of agent actions to support accessibility review and compliance

## Use AltTextLab with any AI Agent Framework

Choose a framework you want to connect AltTextLab with:

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

## Related Toolkits

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## Frequently Asked Questions

### Do I need my own developer credentials to use AltTextLab with Composio?

Yes, AltTextLab requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)