Generate a social-media caption from a topic using built-in templates (no AI): picks a template for the content type and tone, fills in the topic, and optionally appends a call to action and up to 8 hashtags. Returns the caption, its length, and the platform limit.
This page documents the HTTP endpoint POST /api/tools/caption-generator/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/caption-generator/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/caption-generator/execute \
-H "Content-Type: application/json" \
-d '{
"topic": "Sunday brunch",
"content_type": "food",
"tone": "casual",
"platform": "instagram"
}'Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/caption-generatorInput schema
| Argument | Type | Required | Description |
|---|---|---|---|
| topic | string | no | What the post is about. Default "this moment". |
| content_type | string (lifestyle | travel | food | fitness | fashion | business | motivation | funny) | no | Content category. Default "lifestyle". Default: "lifestyle". |
| tone | string (casual | professional | witty | inspirational) | no | Voice of the caption. Default "casual". Falls back to casual, then lifestyle/casual, when no template exists. Default: "casual". |
| platform | string (instagram | tiktok | facebook | twitter) | no | Target platform, sets the character limit. Default "instagram". Default: "instagram". |
| keywords | string | no | Comma-separated keywords turned into extra hashtags. |
| include_hashtags | boolean | no | Append hashtags. Default true. Default: true. |
| include_emojis | boolean | no | Keep emojis in the caption. Default true. Default: true. |
| include_cta | boolean | no | Append a call to action. Default true. Default: true. |
Example arguments (verified)
{
"topic": "Sunday brunch",
"content_type": "food",
"tone": "casual",
"platform": "instagram"
}Also an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:caption_generator after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/More Generators tools
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