👗 Fashion & Textile Design · design silhouette sharing

Pattern Proof · x402

A high-fidelity CAD silhouette vault where designers pay 0.01 USDC to 'cut' (fork) a professional block or 'seam' (merge) metadata into a collaborative tech pack. Every structural iteration is an on-chain commit, ensuring pattern-makers are paid for the underlying geometry before a single stitch is sewn.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

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

Why this primitiveMoving from simple 'sharing' to 'micropayment-gated CAD blocks' creates a high-velocity marketplace where the primitive is the design foundation itself. x402 allows for granular licensing of shapes, where a designer pays per iteration/download rather than a heavy upfront seat license.

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
Global apparel design and PLM (Product Lifecycle Management) software market.
SAM
$450M
Independent fashion labels, digital boutique owners, and technical designers utilizing 3D/CAD workflows.
SOM
$12M
Web3-native fashion houses and pattern-making collectives requiring verifiable design provenance.

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

See also

Adjacent entries.