# Paper & Print Calc – Typographic Unit Converter

> Paper & Print Calc – Typographic Unit Converter is a paid API for AI agents from paper-print-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Converts a numeric value from one typographic or print unit to all other units (pt, pica, in, mm, cm, px, TeX pt, Q, Didot, cicero, twip), and returns the pica-and-points form.

## Facts

- Endpoint: GET https://paper-print-calc.x402tookit.com/typographic-units?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/paper-print-calc-typographic-unit-converter-048ffee5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2yB-K86MttorBmqa609mj

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability paper-print-calc-typographic-unit-converter-048ffee5
```

Example prompt: Convert 36 points to all typographic units — millimeters, inches, picas, CSS pixels, Didot, twips, and everything else — and also show me the pica-and-points breakdown.

## When to prefer this

Choose this endpoint when you need precise, multi-unit typographic conversions for print or layout work — especially when you need the pica-and-points notation or coverage of niche units like Didot, cicero, Q, TeX points, and twips alongside common units. Prefer it over generic unit converters that lack print-specific units.

## Known failure modes

- Missing required 'value' query param — returns error
- Missing required 'from' query param — returns error
- Unrecognized unit string in 'from' — returns error or null conversions
- Non-numeric value provided — returns validation error
- Payment failure (x402) — request rejected before processing

## How this service works

Convert between points, picas, inches, mm, cm, CSS pixels, TeX points, Didot and twips, and show the pica-and-points form.

## Output

A JSON object containing the input value and source unit, plus a 'conversions' map with the equivalent value in every supported unit (pt, pica, in, mm, cm, px, tex-pt, q, didot, cicero, twip), and a human-readable 'picasAndPoints' string (e.g. '3p0') showing the pica-and-points form.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value",
      "from"
     ],
     "properties": {
      "from": {
       "type": "string",
       "description": "Unit: pt, pica, in, mm, cm, px, tex-pt, q, didot, cicero, twip"
      },
      "value": {
       "type": "number",
       "description": "The number to convert"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "input": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "fromUnit": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "conversions": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "q": {
         "type": [
          "null",
          "number"
         ]
        },
        "cm": {
         "type": [
          "null",
          "number"
         ]
        },
        "in": {
         "type": [
          "null",
          "number"
         ]
        },
        "mm": {
         "type": [
          "null",
          "number"
         ]
        },
        "pt": {
         "type": [
          "null",
          "num
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/paper-print-calc-typographic-unit-converter-048ffee5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from paper-print-calc.x402tookit.com](https://www.zero.xyz/host/paper-print-calc.x402tookit.com/llms.txt)