- General
- Language & Frameworks
- Facilitators
- Pricing & Schemes
- Networks & Tokens
- Security
- Agents & Automation
- Governance & Roadmap
What is b402 in a single sentence?
What is b402 in a single sentence?
b402 is an open, on-chain payment standard that extends the dormant HTTP
402 Payment Required status code into a programmable settlement layer for AI agents and web services on the BNB Chain.Is b402 a Binance product?
Is b402 a Binance product?
No. b402 is an open protocol built on BNB Chain, governed by an open-source specification under the Apache-2.0 license.
Binance and other ecosystem contributors may operate facilitators, but no single entity controls the protocol.
Binance and other ecosystem contributors may operate facilitators, but no single entity controls the protocol.
Why not use traditional payment rails or API keys?
Why not use traditional payment rails or API keys?
Traditional systems rely on centralized processors, accounts, and manual flows.
b402 removes those barriers — enabling machine-to-machine, HTTP-native payments that settle instantly on-chain with minimal fees.
b402 removes those barriers — enabling machine-to-machine, HTTP-native payments that settle instantly on-chain with minimal fees.
Is b402 only for crypto-native projects?
Is b402 only for crypto-native projects?
No. Any service — from API providers to AI agents to websites — can integrate b402 to enable programmatic, per-request or usage-based payments.