NIST Wants to Know How AI Agents Should Prove Who They Are

NIST just released a concept paper asking a question that should matter to every developer building AI agents: How should agents identify and authenticate themselves? The paper — "Accelerating the Adoption of Software and AI Agent Identity and Authorization" — is open for public comment through April 2, 2026 . It's not a standard yet. It's NIST asking the community: what should the standard look like? Why This Matters Right now, AI agents authenticate using... API keys. The same mechanism we use for weather APIs and Stripe webhooks. There's no standard way for one agent to prove its identity to another. No way to verify that the agent claiming to be "TradingBot_v3" is actually TradingBot_v3 and not an impersonator. NIST recognizes this gap. Their concept paper identifies six problem areas: Identification — How should agents be identified? Fixed identity or ephemeral? Authentication — What constitutes strong authentication for an AI agent? Authorization — How do zero-trust principles ap