Text to music, paid per call

Describe the genre, mood, instruments and tempo, settle the 402 in USDC, and an original Google Lyria 3 track comes back in the same response.

POST /api/x402/music · from $0.06

Turn the sound on: the only audio in this reel is a Google Lyria 3 bed, scored from one line of description. It was made on our own account, not bought here; the music endpoint sells the same model, the track alone.Google Lyria 3

Try it

1 · Ask for the price (free)

curl -i -X POST https://www.trezalabs.com/api/x402/music \
  -H 'Content-Type: application/json' \
  -d '{"prompt":"warm lo-fi hip hop, soft piano chords, vinyl crackle, relaxed 80 bpm groove","model":"lyria-3-clip"}'

Without a payment this answers 402 Payment Required, with the price for exactly this body, the USDC token and the address to pay in the PAYMENT-REQUIRED header. Nothing is charged.

2 · Pay and collect, with Coinbase's awal wallet

npx awal@latest x402 pay https://www.trezalabs.com/api/x402/music \
  -X POST \
  -d '{"prompt":"warm lo-fi hip hop, soft piano chords, vinyl crackle, relaxed 80 bpm groove","model":"lyria-3-clip"}' \
  --max-amount 60000

awal reads the 402, pays it from your agentic wallet in USDC on Base, repeats the request and prints the response. --max-amount caps the payment in USDC units of a millionth: 60,000 is $0.06, this body's price. Any other x402 client works the same way.

Or just read what it asks for

npx awal@latest x402 details https://www.trezalabs.com/api/x402/music

Price

Quoted per request in the 402, so read it from there rather than hard-coding it. A render that fails gets a free retry.

Google Lyria 3 Clipdefaultlyria-3-clip
$0.06
Google Lyria 3 Prolyria-3-pro
$0.12

Limits

prompt: up to 2,000 characters.
Returns an MP3 URL in the JSON response, with a statusUrl you can GET again for free.
60 requests per hour per IP address, before any payment is looked at.
Paid in USDC on Base or Solana. Fields the endpoint does not read are refused before payment, not charged for and ignored.
lyria-3-clip is a 30-second piece: a bed, a sting or a loop. lyria-3-pro is a full-length song with an intro, a development and an ending.

A bare GET /api/x402/music answers with the whole menu as JSON.

What a paid call returns

{
  "runId": "2026-09-23T18:04:11.000Z#1a2b3c4d",
  "status": "success",
  "audio": "https://www.trezalabs.com/api/media/generated/x402_music/1a2b3c4d.mp3?s=...&c=...",
  "statusUrl": "https://www.trezalabs.com/api/x402/music?runId=...&token=...",
  "paidUsd": 0.06,
  "model": "lyria-3-clip",
  "transaction": "0x..."
}

The same payment buys

Video

POST /api/x402/video

A prompt or a first frame in, a clip out, on Veo 3.1, Kling 3.0, Seedance 2.5, Wan 2.7 or Hailuo 3.

From $0.42

Speech

POST /api/x402/speech

Text to an ElevenLabs voiceover, Eleven v3 or Multilingual v2, in dozens of voices.

From $0.02

Images

POST /api/x402/image

Nano Banana, GPT Image 2, Seedream 5.0 Pro, FLUX.2 Pro and Recraft, up to 4K.

From $0.02

Shorts

POST /api/x402/short

A topic in, a finished 30-second narrated vertical short out: scenes, voice, music, captions.

From $0.87

Listed in the Coinbase x402 Bazaar, so agents can find it with npx awal@latest x402 bazaar search "music generation". Full reference in the x402 docs and the OpenAPI spec.