FLIP THE402
One in 402. Pay the protocol, pick a number, flip the coin. Beat the odds and keep ×380.
- stake0.005 SOL
- payout×380
- odds1 in 402
Phantom · Solflare · MetaMask (Solana Snap)
How it works
Connect
Plug in Phantom, Solflare, or MetaMask. One click, no registration.
Pick
Choose your number from 1 to 402. Gut feeling or birthday — doesn’t matter to the chain.
Flip
Pay 0.005 SOL. The protocol rolls. Land on your number, pocket ×380.
Every HTTP request can return a status code. 200 means success. 404 means not found. 402 — Payment Required sat unused for thirty years. A door with no lock.
Then x402 arrived. Coinbase built the lock. Stripe turned the key. Google Cloud opened the door. Now AI agents pay for API calls in real-time, machine to machine, cent by cent, on Solana.
FLIP402 is the same handshake — but you're the agent, the endpoint flips a coin, and the payload is your number.
The x402 economy · live
HTTP 402 is the oldest joke in the book.
For thirty years 402 Payment Required sat in the spec unused — a door marked “you can't afford this” with no lock behind it. A placeholder for a future nobody built.
Then the chains showed up. Payments became native. The door got a lock, and the lock got a key, and the key was just a signature you could make in your pocket.
FLIP402 is what we do with the door now. Pay the toll. One in four hundred and two times, the protocol lets you through with ×380. The other four hundred and one times it doesn't.
Every time an AI agent makes an x402 call and gets nothing back — it's a loss. Every time it gets access — it's a win. FLIP402 is that binary. For humans.
No roadmaps. No vesting. No team dinners. Just the coin, the number, and the chain between you and the outcome.