# Baker's Percentages & Hydration Calculator

> Baker's Percentages & Hydration Calculator is a paid API for AI agents from cooking-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Computes baker's percentages, hydration, and sourdough starter breakdown from a gram-based formula, with optional scaling to a target flour or dough weight.

## Facts

- Endpoint: GET https://cooking-calc.x402tookit.com/bakers-percentages?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/baker-s-percentages-hydration-calculator-0eea8249
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xhx00iFkI19ZrAjUi1NSB

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 baker-s-percentages-hydration-calculator-0eea8249
```

Example prompt: Can you work out the baker's percentages and overall hydration for my sourdough — 900g bread flour, 100g whole wheat flour, 750g water, 20g salt, 200g starter — and scale it so the total flour comes to 500g?

## When to prefer this

Use this endpoint when a user needs to compute baker's percentages, hydration levels, or sourdough starter breakdowns from gram-weight bread formulas, especially when scaling to a target flour or dough weight. Prefer this over general cooking calculators when the recipe involves bread flour mixtures, sourdough starters, or professional bakery-style percentage analysis.

## Known failure modes

- Missing or malformed formula query parameter returns an error
- Formula with no flour ingredients cannot compute percentages
- starterHydrationPct outside 30–300 range may be rejected or clamped
- Conflicting targetFlourG and targetDoughG may produce unexpected scale factor
- Ingredient names with special characters may not parse correctly

## How this service works

Baker's percentages and hydration from a gram formula, counting sourdough starter, with scaling to a flour or dough weight.

## Output

Returns a structured breakdown including: each ingredient with its weight in grams and percentage of total flour, overall hydration percent, total flour grams, total water grams, total dough grams, starter flour and water split, salt percent, prefermented flour percent, scale factor applied, and any disclaimer or warnings.

## 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": [
      "formula"
     ],
     "properties": {
      "formula": {
       "type": "string",
       "description": "Weights in grams as name:grams lines separated by semicolons, for example 'bread flour:900; whole wheat flour:100; water:750; salt:20; starter:200'"
      },
      "targetDoughG": {
       "type": "number",
       "description": "Or scale to this total dough weight in grams"
      },
      "targetFlourG": {
       "type": "number",
       "description": "Scale the formula so total flour is this many grams"
      },
      "starterHydrationPct": {
       "type": "number",
       "description": "Water as % of flour in the starter, 30 to 300 (default 100)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "starterG": {
       "type": [
        "null",
        "number"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "ingredients": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "grams": {
          "type": [
           "null",
           "number"
          ]
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/baker-s-percentages-hydration-calculator-0eea8249/health.json
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