Burn Once Secret Vault
Store a secret (API key, webhook payload, signed URL) encrypted with WebCrypto AES-256-GCM and share a claim URL that yields the secret exactly once. A Durable Object serializes reads so single-use delivery is race-free, and every burn returns an Ed25519-signed attestation. Creating a vault requires x402 payment; the recipient's claim read (GET /v/:vault_id) is free.
POST https://burn-once-secret-vault.jannioura.workers.dev/
0.01 USDC on Base · payTo 0x86256e25d4e5511eb6dcc474a4e779970267e903
Status: unverified (probe-pending)
Settlement: direct to the seller's payTo — 0% HIVE402 take
Payment routes
Base · 0.01 USDC · payTo 0x86256e25d4e5511eb6dcc474a4e779970267e903 · via guests · settles direct