🎵 Music & Sound Design · beat selling

Rhythm Meter · x402

Unlock the studio vault. Instead of bloated $500 exclusive licenses, high-fidelity stems and master tracks are metered at the sample level. Sign once with your Magic Link email sign-in and pay 0.01 USDC to preview a high-quality loop, 0.05 to download a MIDI pattern, or 0.10 to stream the full stem-set. Every 'play' and 'download' is a micro-transaction settled instantly on Hedera, giving producers a real-time revenue stream and rappers a friction-less, pay-as-you-cook workflow. No carts, no checkout, just flow.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the beat selling 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 primitiveMoving from high-friction NFT purchases to low-friction usage-based payments transforms beats from 'assets to be hoarded' into 'utilities to be consumed.' The x402 primitive allows for granular pricing (pay-per-stem) which is impossible with traditional card payments or gas-intensive mints.

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
$1.5B
Global beat-selling and stock audio market transitioning to automated, high-velocity micropayments.
SAM
$120M
Emerging onchain creators and independent rappers using micro-licensing.
SOM
$8M
Initial Base/HashPack power users and bedroom producers transitioning from subscription models.

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

See also

Adjacent entries.