{"slug":"music-production-calc-x402tookit-com-key-shift-bba887","title":"Shift a key by semitones with the right sharp or flat spelling, its relative maj","host":"music-production-calc.x402tookit.com","method":"GET","resource":"https://music-production-calc.x402tookit.com/key-shift","category":"other","description":"Shift a key by semitones with the right sharp or flat spelling, its relative major or minor, signature and capo shapes.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":379,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"key":"Eb","semitones":4},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"capo":{"description":"Capo fret 1 to 11 to get the chord-shape key to play (optional)","type":"integer"},"key":{"description":"Starting key: C, F#, Bb, Am, F#m or 'Bb minor' (no mode means major)","type":"string"},"prefer":{"description":"sharps or flats, used only when two spellings are equally simple (for example F# or Gb major)","type":"string"},"semitones":{"description":"Shift in semitones, -24 to 24 (positive is up)","type":"integer"}},"required":["key","semitones"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"asOf":{"type":["null","string"]},"capoChoice":{},"capoOptions":{"items":{"properties":{"capo":{"type":["null","number"]},"openFriendly":{"type":["boolean","null"]},"shapeKey":{"type":["null","string"]},"signature":{"type":["null","string"]}},"type":"object"},"type":["array","null"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"fromKey":{"type":["null","string"]},"fromRelativeKey":{"type":["null","string"]},"fromSignature":{"type":["null","string"]},"notChecked":{"items":{"type":"string"},"type":["array","null"]},"reasons":{"items":{"type":"string"},"type":["array","null"]},"relativeKey":{"type":["null","string"]},"semitonesShifted":{"type":["null","number"]},"source":{"type":["null","string"]},"summary":{"type":["null","string"]},"toFifthsPosition":{"type":["null","number"]},"toKey":{"type":["null","string"]},"toMode":{"type":["null","string"]},"toSignature":{"type":["null","string"]},"verdict":{"type":["null","string"]}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":379,"error":null}],"description_full":"Shift a key by semitones with the right sharp or flat spelling, its relative major or minor, signature and capo shapes.","last_updated":"2026-10-20T20:34:15.479Z","schemes":["exact"]}