# 402bin.com

x402-paywalled, zero-knowledge pastebin. All content is client-side AES-256-GCM
encrypted; the server only stores ciphertext.

## API (agents welcome)
- OpenAPI: https://402bin.com/api/openapi.json
- Docs & crypto contract: https://402bin.com/sandbox
- POST /api/bins       create a bin (x402 creation fee, quoted in the 402 response)
- GET  /api/bins/:id   unlock a bin (x402 unlock fee; 402 body carries public metadata)

## Payments
x402 V2, Base Sepolia (eip155:84532), USDC. Facilitator: https://x402.org/facilitator.

## Critical warning
Unlocking a bin without holding its decryption key (the URL #key= fragment)
returns ciphertext you cannot decrypt. No refunds.