🎵 Music & Sound Design · exclusive content

StemStream · x402

Stream unreleased stems, demos, and master tracks with zero friction. No subscriptions or NFTs required—just pay 0.01 USDC per play. Each listen triggers an instant settlement to the artist's wallet via HTS transfer, creating a high-velocity 'pay-per-ear' micro-economy for independent sound designers and musicians.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the exclusive content 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 away from binary 'buy/own' token gates to 'metered access' lowers the barrier to entry for fans while ensuring artists get paid for every single session. x402 handles the micro-settlement without the friction of traditional minting or subscription paywalls.

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
$8.2B
The global music streaming and digital downloads market, shifting toward decentralized, granular payment models.
SAM
$450M
The projected market for independent music creators and direct-to-fan monetization platforms by 2026.
SOM
$12M
Initial capture of underground electronic and lo-fi producers using Base for rapid, low-fee distribution.

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

See also

Adjacent entries.