Solana x402 Rail

HTTP-native AI payment on Solana. Clients pay per-request with SOL — verified on-chain via Helius RPC. Improved from the legacy x402.unykorn.org demo; canonical hub is now genesis402.com.

Free test endpoint Health ATP gateway (primary)

How the Solana rail works

Request
GET /api/data → HTTP 402 + payment descriptor

Descriptor
Recipient, amount in SOL, memo, expiry

Pay
Transfer on Solana mainnet; capture tx signature

Retry
X-Payment-Signature → HTTP 200 + content

Instant settlement

Helius RPC verification in under 2 seconds.

AI-native

Autonomous agents discover, pay, and consume without human steps.

Cryptographic proof

Every access backed by an on-chain transaction.

Test mode

?test=true — 100 req/hr per IP for fair use.