Comparison · Identity provider
Auth0 logs in users. Nomos authorizes agents.
Auth0 issues sessions for humans. Nomos issues capability tokens for AI agents — every tool call gated, every action witnessed, no long-lived secrets on the agent.
Different problem. Auth0 sits in front of the user, Nomos sits between the agent and its tools.
the receipts
Feature by feature.
No hedging.
Every row is a thing your agent will actually do. If we marked a cell wrong, tell us in Discussions — we’ll fix it the same week.
| feature | Auth0 | Nomos |
|---|---|---|
| Capability tokens (UCAN) | ||
| Per-call policy decision | ||
| Cryptographic audit chain | ||
| MCP-native server | ||
| Self-hostable | enterprise | soon |
| Open source | soon | |
| Step-up passkey approval | ||
| Schema-validated tool calls | ||
| Multi-agent UCAN delegation | ||
| Multi-tenant org RBAC |
honest questions
What people actually ask.
- Can I use Auth0 with Nomos?
- Yes — Auth0 signs your operators into the Nomos dashboard, Nomos signs your agents into your downstream tools. Different layer, no overlap.
- Why not just give the agent an Auth0 M2M token?
- M2M tokens are bearer secrets with broad audience. A leaked M2M token in a model trace is a long-lived breach. Nomos issues a UCAN scoped to one resource, one action, with seconds of lifetime.
Try Nomos. It’s free.
Open beta. No credit card. Plug an agent in, see your first audited decision in minutes. Self-host on the waitlist when you’re ready.
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