X402 Music

X402 Music is an audio API for agents and apps offering pre-cleared tracks, stems, and signed licenses.

X402 Music is an audio API built for developers, agents, and applications to ship music like code. It provides access to pre-cleared tracks and stems, vector search capabilities, signed commercial licenses, and credit billing. Users can query the live catalog by BPM, key, mood tags, or an emotion vector with sub-100ms lookups. It streams stems such as drums, bass, melody, vocals, or FX as chunked WAV files. Every commercial use receives a tamper-proof HMAC receipt for offline verification. The service operates on prepaid credits billed through Stripe Checkout without requiring a subscription.

X402 Music at a glance

Best for: Software engineer
Runs on: API, Web
Pricing: 1 credit = 1 US cent; streams cost 1 credit per stem request; licenses use each track's fee; prepaid credits via Stripe Checkout
Released: November 2026
Category: AI audio tool
Website: levievans.cloud

Key features

Stream drums, bass, melody, vocals or FX as chunked WAV
Query catalog by BPM, key, mood tags or emotion vector
Generate tamper-proof HMAC receipts for commercial licenses
Prepaid credit billing with Stripe Checkout integration
Authenticate via JWT or long-lived API key
Access OpenAPI 3.1 and an agent card

Use it for

Integrate music streaming and licensing into AI agents
Query tracks by BPM, key, or emotion vector
Download individual stems for custom pipelines
Obtain verified commercial licenses programmatically

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