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Calculate a sourdough bread recipe in grams from loaf count, loaf size and hydration. Returns flour, water, starter and salt, plus a link to the same recipe on loafy.ai where the baker can adjust it and run the timers.

• loaves (integer, optional, default 1, 1 to 100) How many loaves to bake.
• loaf_size_g (integer, optional, default 500, 100 to 2000) Flour per loaf in grams, not the dough weight: 500 g of flour makes one standard loaf of about 860 g of dough. For a loaf of a given dough weight, the flour is about 58 % of it at 60 % hydration.
• hydration_percent (integer, optional, default 60, 55 to 100) Water as a percentage of flour. The book recommends around 60 % for most flours; higher is more open but stickier.
• whole_grain_percent (integer, optional, default 20, 0 to 100) Share of the flour that is whole grain, the rest is bread flour.

Calculate pizza dough in grams from the number of pizzas, the ball weight and hydration, with either fresh yeast or sourdough starter. Returns flour, water, salt, leavening and toppings, plus a link to the same recipe on loafy.ai.

• pizzas (integer, optional, default 4, 1 to 12) How many pizzas.
• weight_per_pizza_g (integer, optional, 50 to 350) Dough ball weight in grams. Left out, it follows the oven: 250 g home, 270 g pizza oven, 280 g wood-fired.
• hydration_percent (integer, optional, default 60, 55 to 75) Water as a percentage of flour. 55-65 is easy to handle, above 70 is expert.
• dough_type (string, optional, default yeast, one of yeast, sourdough) Leavened with fresh yeast or with sourdough starter.
• oven (string, optional, default home, one of home, pizza, wood) home is a domestic oven, pizza an Ooni or Roccbox, wood a wood-fired oven.

Plan a sourdough bake backwards from when the bread should come out of the oven: when to feed the starter, mix, shape, proof in the fridge, preheat and bake, and how much starter suits the kitchen's temperature according to The Sourdough Framework. Returns the times and a link to the same plan on loafy.ai.

• ready_at (string, required) When the bread should come out of the oven, as the baker's local date and time, e.g. "2026-10-24T10:00".
• kitchen_temperature_c (integer, optional, default 22, 15 to 32) Kitchen temperature in °C, which sets how much starter to use.
• bulk_hours (integer, optional, 4 to 16) Hours of bulk fermentation, if the baker knows their dough. Without it, the book's figure for the kitchen's temperature.
• cold_proof_hours (integer, optional, default 12, 8 to 24) Hours the shaped loaf proofs in the fridge. The book says 8 to 12.

List Loafy's guided sourdough journeys: making a starter, baking a loaf, scoring, and more. Each one is a timed, step-by-step walkthrough on loafy.ai. Returns each journey's slug, title, duration, difficulty, number of steps and link.

No parameters.

Start one of Loafy's guided journeys and get the link that opens it at the first step. The journey runs on loafy.ai, where each fold, proof and bake is timed for the baker.

• slug (string, required) Journey identifier from list_sourdough_journeys, e.g. "sourdough-bread".

Look up one step of a guided journey by its id or its position: its title, where it sits in the journey, its timer in minutes when the step has one, and the link that opens it. The instructions themselves are on the page, where the timer for that step runs.

• slug (string, required) Journey identifier, e.g. "sourdough-bread".
• step (string, optional) Step identifier (e.g. "mix") or position ("5" is the fifth step). Left out, the first step is returned.

Search Loafy's library of answers to real questions from bakers, written by Hendrik Kleinwächter of The Bread Code and grounded in his book The Sourdough Framework. Returns the answers that match, each with the book chapter behind it and a link. When none matches, returns the closest passages from the book instead. The library covers starters, fermentation, dough, flour, baking and storage, and it is in English.

• query (string, required) What the baker wants to know, in English, e.g. "my starter smells like vinegar".
• limit (integer, optional, default 3, 1 to 10) How many answers to return. Defaults to 3.

Search Hendrik Kleinwächter's open-source book The Sourdough Framework and get the passages that answer a question, each with its chapter, a link and the part of the book it comes from, which read_sourdough_book returns in full. The book covers starters, fermentation, flour, hydration, shaping, baking and troubleshooting. It is written in English, and the search matches English words.

• query (string, required) What to look up, in English, e.g. "starter smells like acetone" or "bulk fermentation temperature".
• limit (integer, optional, default 3, 1 to 5) How many passages to return. Defaults to 3.

The table of contents of Hendrik Kleinwächter's open-source book The Sourdough Framework: every chapter and section with its number and each chapter's length in words. read_sourdough_book returns any of them in full. The book covers starters, fermentation, flour, hydration, shaping, baking and troubleshooting.

No parameters.

Read a chapter or section of Hendrik Kleinwächter's open-source book The Sourdough Framework in full, by its number from get_sourdough_book_contents or by its title. Returns the text with its chapter, link and licence; a chapter longer than about 40,000 characters comes in pages.

• part (string, required) A chapter or section: its number from get_sourdough_book_contents, e.g. "8" or "8.3", or its title, e.g. "Bulk fermentation".
• page (integer, optional, default 1, 1 to 10) Which page of a long chapter. Most parts have one.

https://loafy.ai/loafy?via=yoursite&q=Is+my+starter+ready%3F

<form action="https://loafy.ai/loafy" method="get" target="_blank">
  <input type="hidden" name="via" value="yoursite">
  <label for="loafy-q">Ask Loafy, answers from The Sourdough Framework</label>
  <input id="loafy-q" name="q" type="text" maxlength="1000" required
         placeholder="Is my starter ready?">
  <button type="submit">Ask</button>
</form>

curl -X POST https://loafy.ai/api/v1/tools/calculate_bread_dough \
  -H "Content-Type: application/json" \
  -d '{"loaves": 2, "hydration_percent": 70}'

curl -X POST https://loafy.ai/api/v1/tools/search_sourdough_book \
  -H "Authorization: Bearer loafy_your_key" \
  -H "Content-Type: application/json" \
  -d '{"query": "how do I know when bulk fermentation is done", "limit": 2}'