AccessMint

AccessMint lets API developers and startups monetize their APIs by minting access tokens on Hedera Token Service. Users buy tokens with HBAR via atomic swaps, then burn one token per API call to get real data back like live crypto prices, weather, anything the provider wraps. The novel part: unused tokens are resellable on a secondary marketplace, turning prepaid API access into a liquid, tradeable asset. The marketplace is gated by World ID to prevent bots from cornering supply, providers carry ENS identities for trust, and every transaction is logged to Hedera Consensus Service with a verifiable Hashscan link. No Solidity, built entirely with Hedera's native SDK services.

Backend is Node.js using the Hedera SDK (@hashgraph/sdk) directly so no smart contracts. Tokens are minted via HTS, purchases use atomic swaps (TransferTransaction moving both HBAR and tokens in one tx), and redemptions burn the token then proxy the call to the wrapped API (CoinGecko, Open-Meteo). All activity is logged to HCS topics, queryable on Hashscan. Frontend is React + Vite + Tailwind. WalletConnect integrates HashPack for wallet auth. World ID v4 (IDKit) gates marketplace access as a sybil-resistance layer you can't buy resale tokens without proving you're human. ENS names are resolved via the viem library for provider identity. State persists to a JSON file. The "burn-to-call" flow where a single POST request atomically burns an HTS token, calls the external API, logs to HCS, and returns real data all in one round trip.