Seamless Micro-Payments in Real-Time
Flow402 is an x402-compatible, non-custodial facilitator for USDC. It verifies and settles micro-payments via simple APIs, while all funds stay fully on-chain.
Why Choose Flow402?
Flow402 is an x402-compatible, non-custodial facilitator for USDC. It verifies and settles micro-payments via simple APIs, while all funds stay fully on-chain.
Non-Custodial
Funds move directly from payer to merchant & facilitator. No custody, no pooled balances.
Secure by Design
Built on battle-tested protocols with end-to-end encryption and fraud prevention
Agent-First Architecture
Designed specifically for autonomous agents to transact seamlessly without human intervention
USDC Powered
Stable, reliable payments using USDC for predictable value transfer across the network
Fair Fees
Configurable min fee, 1- or 2-tx modes for maximum flexibility.
RPC Fallback
Automatic fallback to a secondary RPC provider for resilient on-chain reads.
Idempotent Intents
Each nonce maps to a reusable payment intent, ensuring safe retries.
On-chain receipts
Each settlement links to a real on-chain txHash, verifiable by anyone.
Understanding x402 Protocol
HTTP status code 402 reimagined for the age of autonomous payments
Ask Request
Initiates a micro-payment request using HTTP
402 Protocol
The 402 payment required header is exchanged for authentication
USDC Transfer
Transfer executed on the blockchain by the client
Access Granted
Payment is verified, service or resource is then made available
Built for Scale
The x402 protocol handles millions of micro-transactions per second, enabling true machine-to-machine economy at scale.
Find more about it on Coinbase.
Token
Flow402 released its own token, using Solana.
- 1,000,000,000 total supply
- Thanks to this significant supply, everyone will be able to hold a percentage of tokens available at launch. This total will decrease over time.
- 0% tax fee
- Transactions are not taxed; you receive what you request. (Taxes may apply depending on the DEX used)
- Inflationary
- The token is regularly purchased using protocol revenue and burned. This ensures that the price continues to rise.