🎵 Music & Sound Design · audio collectibles

SonicStream · x402

A pay-per-listen protocol for high-fidelity stems and sound packs. Users sign a 0.01 USDC HTS transfer permit to instantly stream a track or download a sample, with royalties auto-routed to the creator's wallet. Forget gas-heavy minting; this is granular, real-time audio consumption where every play is a settled transaction on Hedera.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the audio collectibles engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so musicians — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveTraditional Music NFTs suffer from high friction and high unit prices ($20+). x402 allows for 'metered listening' and 'fragmented licensing'—where a producer pays a penny to preview a high-quality stem, turning the entire catalog into a liquid, pay-per-use sound library.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Appendix · Market

Market sizing.

TAM
$26.3B
The global recorded music industry transitioning to friction-less, micro-monetized streaming architectures.
SAM
$450M
The global digital music licensing and sample pack market moving toward micro-transactions.
SOM
$12M
Web3 native producers and AI-agent music generators needing programmatic access to licensed stems.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.