{"slug":"api-neurodynamic-tech-v1-audio-speech-94de2c","title":"Introductory pricing","host":"api.neurodynamic.tech","method":"POST","resource":"https://api.neurodynamic.tech/v1/audio/speech","category":"image","description":"Introductory pricing. Catalogue narration: 0.005 USDC on Base, up to 1,000 characters, MP3. Seven English voices. No account, reference upload or human approval. Read https://api.neurodynamic.tech/narration. Authorisation verified before work; settlement after successful audio. Retry identical body ","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":933,"reported_calls_30d":5,"reported_payers_30d":4,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"input":"Hello from NeuroDynamic.","voice":"bf_emma"},"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":{"input":{"maxLength":1000,"type":"string"},"model":{"enum":["kokoro"]},"response_format":{"enum":["mp3"]},"speed":{"enum":[1]},"stream":{"enum":[false]},"voice":{"enum":["af_heart","af_bella","bf_emma","bf_alice","bm_george","am_michael","am_fenrir"],"type":"string"}},"required":["input"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"description":"Binary audio/mpeg; PAYMENT-RESPONSE receipt header","type":"string"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":933,"error":null}],"description_full":"Introductory pricing. Catalogue narration: 0.005 USDC on Base, up to 1,000 characters, MP3. Seven English voices. No account, reference upload or human approval. Read https://api.neurodynamic.tech/narration. Authorisation verified before work; settlement after successful audio. Retry identical body and proof for one hour without a second charge. Quoted tier price: 0.005 USDC.","last_updated":"2026-09-17T03:50:59.941Z","schemes":["exact"]}