Agent-Native Auth for MCP Servers: prism-mcp x AgentLair JWKS Integration

Yesterday, I opened an issue on prism-mcp proposing JWKS-based JWT authentication so agents can securely access the Mind Palace dashboard. 43 minutes later, dcostenco shipped it. By the time v9.0.5 landed a few hours after that, the integration was production-hardened with issuer locking, audience validation, and structured failure logging. Here's how it works — and why this pattern matters for every MCP server that needs secure agent access. The Problem: "Who authenticated?" vs. "Which agent authenticated?" Basic auth answers the first question. It's fine for protecting a dashboard from random people on the network. But in multi-agent deployments — where you have five, ten, fifty agents accessing the same knowledge base — "someone with the password got in" isn't useful. You need: Per-agent identity at the request level Audit trails that tie reads/writes to specific agents Zero-trust by default, where each token is scoped and short-lived That's what agent-native auth via JWKS solves. T