{"uid":"cap_NKWJujQKSLag38sQGA0Pj","slug":"cooking-calculators-yeast-sourdough-converter-68851080","name":"Cooking Calculators – Yeast & Sourdough Converter","description":"Convert fresh, active dry and instant yeast, split a sourdough starter into flour and water, or plan a starter feed.","url":"https://cooking-calc.x402tookit.com/yeast-sourdough?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"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":["mode"],"properties":{"to":{"type":"string","description":"yeast mode: fresh, active-dry or instant"},"from":{"type":"string","description":"yeast mode: fresh, active-dry or instant"},"mode":{"type":"string","description":"yeast, starter or feed"},"ratio":{"type":"string","description":"feed mode: starter:flour:water parts, for example 1:2:2 (default 1:1:1)"},"amountG":{"type":"number","description":"yeast mode: the yeast amount in grams"},"targetG":{"type":"number","description":"feed mode: total weight wanted after feeding, in grams"},"starterG":{"type":"number","description":"starter mode: starter weight in grams"},"hydrationPct":{"type":"number","description":"starter and feed modes: starter hydration, water as % of flour (default 100)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"to":{"type":["null","string"]},"asOf":{"type":["null","string"]},"from":{"type":["null","string"]},"source":{"type":["null","string"]},"amountG":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"resultG":{"type":["null","number"]},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"relativeStrengthVsFresh":{"type":["null","object"],"properties":{"fresh":{"type":["null","number"]},"instant":{"type":["null","number"]},"active-dry":{"type":["null","number"]}}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ozr31hRZvRFCmo3LI-UkN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts between fresh, active-dry, and instant yeast amounts, splits a sourdough starter into flour and water components, or plans a sourdough starter feed schedule.","exampleAgentPrompt":"I have a bread recipe that calls for 15g of fresh yeast — how much active-dry yeast should I use instead?","exampleUseCases":[{"title":"Yeast type substitution for bread recipe","prompt":"My pizza dough recipe needs 10g of instant yeast but I only have fresh yeast — how many grams of fresh yeast should I use?"},{"title":"Sourdough starter flour and water split","prompt":"I have 250g of sourdough starter at 80% hydration — can you tell me how many grams of that are flour and how many are water?"},{"title":"Sourdough starter feeding plan","prompt":"I want to feed my sourdough starter up to 300g total using a 1:2:2 ratio at 100% hydration — how much flour and water do I need to add?"}],"resultDescription":"Returns a JSON object with the computed result in grams (resultG), the input amount (amountG), the source and target yeast types or mode, a human-readable summary, relative strength figures comparing yeast types, and a disclaimer noting any caveats. For starter and feed modes, it breaks out flour and water components and explains the calculation.","failureModes":["Missing required 'mode' query parameter returns an error","Invalid mode value (not 'yeast', 'starter', or 'feed') causes rejection","Invalid yeast type for 'from' or 'to' (not fresh/active-dry/instant) causes error","Missing 'amountG' in yeast mode or 'starterG' in starter mode causes incomplete response","Malformed ratio string in feed mode (e.g. non-numeric parts) may cause calculation failure","Payment failure results in 402 response before computation"],"whenToPreferThis":"Choose this endpoint when an agent needs precise, authoritative gram-based yeast conversions or sourdough starter math rather than relying on approximate rules of thumb. It is the right choice specifically for yeast-type substitutions (fresh/active-dry/instant), starter hydration breakdowns, and feed planning with ratio control — all in a single call with a structured, parseable response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T07:02:36.411Z","isFirstParty":false,"canonicalSlug":"cooking-calculators-yeast-sourdough-converter-68851080"}