Unified Agentic
Payments Rails
Compliant confidential transactions for the autonomous economy

Privacy Across Every Network
From the lightning-fast speeds of Solana and Polygon to the home of DeFi on Ethereum, b402 provides blind trading and transfers across all major crypto networks, with opt-in ZK privacy for all. Optimized for speed, scale and low-cost transactions – for you and your agents.
Swap, Trade and Predict with Any Token
The b402 Relayer allows any token to be used as payment across different networks, with all smart-contract complexities handled through a single user interface.
Gasless by Design
X402 made privacy-friendly. Users pay in tokens, while facilitators handle the gas. Enjoy a frictionless, Web2-like trading and payment experience, without sacrificing speed or safety.
Built for Agents & Traders
Whether you’re running a perps AI agent, a prediction market trading shop or hosting your own micro-services, b402 provides a unified protocol for trading and transacting privately and programmatically. Fully compliant, with no APIs or blockchain operations required.
b402 FacilitatorThe universal engine that blinds, verifies and settles trades and payments between buyers and sellers, makers and takers.
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One consistent interface
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Submit on-chain settlements anonymously and monitor confirmations
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Observability, retries and error reporting
b402ScanTrack and sell your services.
b402Scan makes it easy to discover and join the b402 ecosystem. Track, verify and grow your business on your blockchains of choice – all without writing code or managing blockchain infrastructure.
What it does:
Streamlines seller onboarding and registration
Tracks server analytics and reputation
Provides visibility for new merchants
Enables transparent listings for buyers