QBT Labs vs x402.org: Protocol vs Production Infrastructure
x402.org is the canonical open-source reference implementation of the x402 HTTP payment standard, backed by Coinbase. It defines the protocol and ships a reference server and client.
QBT Labs builds the production layer on top of x402.
What x402.org Provides
- The x402 protocol spec and reference implementation
- Coinbase ecosystem backing and USDC settlement on Base
- Open-source client and facilitator server
- Basic HTTP 402 payment flow
What QBT Labs Adds
- Policy engine with budgets, spend limits, and recipient controls
- Encrypted vault with isolated signer — agents never hold keys
- AMP payment channels for high-throughput agent workflows
- Receipts and audit logs for every payment
- MCP-compatible tooling for Claude, Cursor, and Windsurf
- Multi-chain settlement across 10+ chains beyond Base
- Production-tested infrastructure running in live financial environments
Which Should You Use
If you need the protocol reference — use x402.org.
If you are building a production agent workflow and need spend policy, signer isolation, receipts, audit logs, or high-throughput payment channels — use QBT Labs.
The two are compatible. @qbtlabs/x402 implements the x402 standard and adds the production infrastructure layer on top.
npm install @qbtlabs/x402Build agent payments that survive production
Start at qbtlabs.io for the full payment stack — policy engine, encrypted vault, receipts, AMP channels, and MCP integration on top of the x402 standard.