Caption Generator API

POST https://api.findutils.com/api/tools/caption-generator/execute

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.

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Request body

application/json

topic

string optional

What the post is about. Default "this moment".
content_type

string optional

Content category. Default "lifestyle". One of lifestyle · travel · food · fitness · fashion · business · motivation · funny. Default "lifestyle".
tone

string optional

Voice of the caption. Default "casual". Falls back to casual, then lifestyle/casual, when no template exists. One of casual · professional · witty · inspirational. Default "casual".
platform

string optional

Target platform, sets the character limit. Default "instagram". One of instagram · tiktok · facebook · twitter. Default "instagram".
keywords

string optional

Comma-separated keywords turned into extra hashtags.
include_hashtags

boolean optional

Append hashtags. Default true. Default true.
include_emojis

boolean optional

Keep emojis in the caption. Default true. Default true.
include_cta

boolean optional

Append a call to action. Default true. Default true.

Example arguments

Verified

{
  "topic": "Sunday brunch",
  "content_type": "food",
  "tone": "casual",
  "platform": "instagram"
}

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"
  }'

const response = await fetch('https://api.findutils.com/api/tools/caption-generator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"topic":"Sunday brunch","content_type":"food","tone":"casual","platform":"instagram"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/caption-generator/execute",
    json={"topic":"Sunday brunch","content_type":"food","tone":"casual","platform":"instagram"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/caption-generator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"topic":"Sunday brunch","content_type":"food","tone":"casual","platform":"instagram"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call caption_generator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: caption-generator
MCP name: caption_generator
Category: Generators
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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