Image Captioner Edge Function — Ai
AIGenerate captions and alt text for images using AI. Supports URL input, configurable caption styles (descriptive, concise, alt-text, social-media).
Edge function Image Captioner Generate captions and alt text for images using AI. Supports URL input, configurable caption styles (descriptive, concise, alt-text, social-media).. Deployed on Cloudflare Workers — zero cold starts, globally distributed. Mount it via your Aerostack workspace to call it from any AI agent.
npx aerostack add aerostack/image-captioner Use with AI Assistants
MCPConnect Claude, Cursor, or any MCP-compatible client — then call this function by slug
① Add MCP Server
Add this once — access all Aerostack functions from your AI tool.
{
"mcpServers": {
"aerostack": {
"url": "https://mcp.aerostack.dev",
"type": "http"
}
}
} ② Call this function
Ask your AI to use the call_function tool with this slug:
call_function({
slug: "image-captioner",
args: {}
}) Image Captioner
Generate AI-powered captions and alt text for images.
Endpoints
| Method | Path | Description |
|---|---|---|
| POST | /caption | Generate caption for image URL |
| POST | /caption/batch | Caption multiple images |
| GET | /health | Status check |
Metadata
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Frequently asked questions
What does the Image Captioner function do? +
Image Captioner is a serverless edge function for ai automation written in cloudflare-worker. Deploy it to Cloudflare Workers via your Aerostack workspace.
How do I deploy the Image Captioner function? +
Install the Aerostack CLI and run: ```bash aerostack deploy function @aerostack/image-captioner ``` It will be live on Cloudflare Workers in seconds.
What runtime does Image Captioner use? +
Image Captioner runs on cloudflare-worker on the Cloudflare Workers edge runtime — zero cold starts, globally distributed.
Can I customise the Image Captioner function? +
Yes. Fork the function from your Aerostack dashboard, modify the source, and redeploy. All changes are version-controlled.