{"slug":"rengi-dev-v1-audio-tools-loop-ec5474","title":"Audio tools","host":"rengi.dev","method":"POST","resource":"https://rengi.dev/v1/audio-tools/loop","category":"image","description":"Audio tools: Turn music or ambience into a seamless loop: cuts at zero crossings and crossfades the end into the start with an equal-power curve. Returns the loop, a 3x preview and loop points in samples. Full schema: https://rengi.dev/v1/audio-tools/schema","price_listed":0.1,"price_asked":0.1,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":925,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"audioUrl":"https://rengi.dev/samples/ambience.wav","crossfadeMs":250},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"audio":{"description":"Audio file as base64 (wav, mp3, ogg, flac, m4a).","type":"string"},"audioUrl":{"description":"Audio file URL.","format":"uri","type":"string"},"crossfadeMs":{"default":120,"maximum":2000,"minimum":5,"type":"number"},"endSec":{"minimum":0,"type":"number"},"format":{"default":"ogg","enum":["ogg","wav","mp3"],"type":"string"},"mono":{"default":false,"type":"boolean"},"startSec":{"minimum":0,"type":"number"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"additionalProperties":false,"properties":{"durationSec":{"type":"number"},"file":{"type":"string"},"loopEndSample":{"type":"number"},"loopStartSample":{"type":"number"},"preview":{"description":"The loop played three times, to listen for the join.","type":"string"},"sampleRate":{"type":"number"},"waveform":{"type":"string"}},"required":["file","preview","waveform","loopStartSample","loopEndSample","sampleRate","durationSec"],"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":0.1,"price_match":true,"latency_ms":925,"error":null}],"description_full":"Audio tools: Turn music or ambience into a seamless loop: cuts at zero crossings and crossfades the end into the start with an equal-power curve. Returns the loop, a 3x preview and loop points in samples. Full schema: https://rengi.dev/v1/audio-tools/schema","last_updated":"2026-10-21T10:24:26.161Z","schemes":["exact"]}