Mathpix Stroke OCR via Locus x402

x402

Mathpix Stroke OCR via Locus x402 is a paid API for AI agents from mathpix.x402.paywithlocus.com, paid per call via x402, $0.013/call, status unknown (last checked 2026-09-13).

Converts handwritten math stroke data into LaTeX, MathML, or Mathpix Markdown using Mathpix OCR, paid via x402 micropayment.

Price / call$0.013

Seller volume →—

Success—

StatusUnknown

How this service works

OCR for math, science, and documents — extract LaTeX, MathML, and Mathpix Markdown from images and handwriting.

Output

Returns a JSON object with a 'data' field containing the recognized math in requested formats (text, HTML, LaTeX, MathML), plus payment settlement details (USDC amount authorized and settled) and a request object with a UUID and a status URL for tracking.

Example use cases

Digitize handwritten homework solutions

“A student submitted their calculus homework by drawing on a tablet — I have the raw stroke coordinates. Can you use Mathpix to convert those strokes into LaTeX so I can render the equations on the web? I need both 'text' and 'latex_styled' output formats.”

Real-time equation editor input

“My app lets users write math with a stylus and I need to convert their strokes to MathML in near real time. Here are the stroke arrays: x: [[0,5,10]], y: [[0,3,6]]. Please return the 'data' and 'html' formats and strip any extra whitespace from the equations.”

Math tutoring platform transcription

“I'm building a math tutoring tool where students write answers by hand on a drawing pad. Take these stroke coordinates and extract the LaTeX representation using Mathpix — I want 'latex_styled' output and I'd like font commands removed so the output is clean.”

Technical details

Endpoint

POSThttps://mathpix.x402.paywithlocus.com/mathpix/process-strokes

When to prefer

Use this endpoint when you have digital ink stroke data (arrays of x/y coordinates per stroke) from a stylus or drawing tablet and need to convert handwritten math into structured formats like LaTeX or MathML. Prefer this over image-based Mathpix endpoints when you have raw stroke data rather than a rasterized image. Prefer this over generic OCR services when the content is mathematical or scientific notation requiring LaTeX output.

Side effects

Malformed or empty stroke arrays return an error or empty recognition result
Unsupported output format strings in the formats array may be silently ignored or cause a 400 error
Payment failure or insufficient USDC balance blocks the request before OCR runs
Very sparse or noisy stroke data may produce low-confidence or incorrect LaTeX output
Network timeout if the Locus x402 payment gateway is unreachable

Input

Schema · Request body

Field	Type	Description
formats	array
strokes	object
metadata	object
rm_fonts	boolean
rm_spaces	boolean
math_inline_delimiters	array
math_display_delimiters	array

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {},
    "payment": {
      "scheme": "exact",
      "settledUsdc": "0.001000",
      "authorizedMaxUsdc": "0.001000"
    },
    "request": {
      "id": "00000000-0000-4000-8000-000000000000",
      "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
    },
    "success": true
  }
}

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How this service works

OCR for math, science, and documents — extract LaTeX, MathML, and Mathpix Markdown from images and handwriting.

Output

Example use cases

Digitize handwritten homework solutions

Real-time equation editor input

Math tutoring platform transcription

Technical details

Endpoint

POSThttps://mathpix.x402.paywithlocus.com/mathpix/process-strokes

When to prefer

Side effects

Malformed or empty stroke arrays return an error or empty recognition result
Unsupported output format strings in the formats array may be silently ignored or cause a 400 error
Payment failure or insufficient USDC balance blocks the request before OCR runs
Very sparse or noisy stroke data may produce low-confidence or incorrect LaTeX output
Network timeout if the Locus x402 payment gateway is unreachable

Input

Schema · Request body

Field	Type	Description
formats	array
strokes	object
metadata	object
rm_fonts	boolean
rm_spaces	boolean
math_inline_delimiters	array
math_display_delimiters	array

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {},
    "payment": {
      "scheme": "exact",
      "settledUsdc": "0.001000",
      "authorizedMaxUsdc": "0.001000"
    },
    "request": {
      "id": "00000000-0000-4000-8000-000000000000",
      "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
    },
    "success": true
  }
}