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SnapOtter 8532f3227b docs: audit all 157 tool pages against live schemas

Reconcile every tool page's parameters, defaults, and response shape against the tool's Zod settings schema and executionHint in code. Notable fixes: color-palette (add count + format params, hex output, median-cut algorithm), favicon (add 5 params, was documented as having none), qr-generate (add logoDataUri), convert (add ppm/eps/tga formats), video-loudnorm (-16 LUFS not -14), smart-crop (async 202 not sync 200), images-to-video (1080x1080 square), and several output-filename and behavior-note corrections.

Also normalize API endpoint paths to /api/v1/tools/<id> (no modality segment) and standardize curl examples on the Docker API port 1349. Verified with a clean docs build.

2026-06-18 14:12:28 +08:00

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description

description
Create bar, line, or pie charts from CSV or JSON data.

Chart Maker

Create bar, line, or pie charts from CSV or JSON data. Returns a PNG image of the rendered chart.

API Endpoint

POST /api/v1/tools/chart-maker

Accepts multipart form data with a CSV or JSON file and a JSON settings field.

Parameters

Parameter	Type	Required	Default	Description
kind	string	No	`"bar"`	Chart type: `bar`, `line`, `pie`
title	string	No	-	Chart title (max 120 characters)
width	integer	No	`960`	Chart width in pixels (320--2048)
height	integer	No	`540`	Chart height in pixels (240--1536)

Example Request

curl -X POST http://localhost:1349/api/v1/tools/chart-maker \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@sales.csv" \
  -F 'settings={"kind": "line", "title": "Monthly Sales", "width": 960, "height": 540}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/sales_chart.png",
  "originalSize": 1024,
  "processedSize": 48500
}

Notes

Input must be a .csv or .json file. CSV files should have a header row with column names.
The first column is used as the category label; the second column must be numeric and provides the data values. Only two columns are used.
JSON input should be an array of {label, value} objects, or a plain object whose keys become labels and values become data points.
Maximum 100 data points. All values must be zero or greater.
Output is always a PNG image regardless of input format.

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