L402

The x401 protocol extends HTTP with a cryptographic identity assertion layer, enabling servers to require verified identity before granting access and agents to prove human authorization. As AI agents…

Cinderwright has built a payment bridge that allows an AI agent holding only USDC on Base to pay a Lightning Network invoice for the first time. The agent requested a joke from an L402 service and was…

Sentry engineers encountered a rate-limiting bug when Cursor Automations exhausted a human-sized bucket of 60 requests per 60 seconds in seconds, highlighting the challenge of gating MCP servers for a…