🎵 Music & Sound Design · field recording

Resonance · x402

A granular, pay-per-buffer library for professional sound designers and AI training sets. Bypass subscription bloat by paying 0.01 USDC per high-fidelity lossless download or API stream. Every field recording is a smart-contract asset where micropayments flow directly to the recordist's Magic Link email sign-in, enabling a global, decentralized 'Street View' for audio.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the field recording 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 primitiveProfessional sound design often requires specific, one-off textures (e.g., 'Tokyo subway at 3 AM'). Subscription models overcharge for this, while free libraries lack quality. x402 enables a 'pay-per-ear' model where high-quality metadata is free to browse, but the raw audio asset is gated by an instant 0.01 USDC settlement.

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
$3.8B
The global stock media and sound effects market, including AI training data licensing for generative audio models.
SAM
$450M
The segment of the sound library market shifting toward 'micro-licensing' and rapid-prototyping for indie game devs and TikTok creators.
SOM
$12M
Initial volume from ambient AI music generators and VR developers requiring authentic, geolocated environmental assets via API.

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

See also

Adjacent entries.