Manav vs Auth0
Auth0 won developer-first IAM by making login painless. The agentic age needs the equivalent for agent identity. Same instinct, different layer of the stack.
What Auth0 still does well
Auth0's developer experience is genuinely best-in-class for human authentication: clean SDKs across every major language, generous free tier, social login with three lines of code, MFA with a flag, dashboards a CTO can read. If you are building consumer login or B2B SSO, Auth0 (now Okta CIC) ships on day one of any project. The pattern is correct; the implementation is mature.
Where Auth0 stops at the agent boundary
Auth0's architecture is human-first by design. Sessions are issued to humans; agents either share the human's session or get a long-lived M2M token via the Client Credentials flow. Both paths fail in the agentic age:
- Shared sessions are over-scoped (an agent inherits everything the human can do) and under-revocable (revoking the agent revokes the human).
- M2M tokens have no live binding to a human principal — the audit log loses the human in the chain by design.
Neither shape produces the cryptographic chain Article 14 demands or the per-agent revocation that incidents require.
What Manav adds at the developer layer
The Manav SDK matches Auth0's developer instinct in the agent-identity domain. Twelve lines of code add a delegation chain to any MCP-based agent (see the tutorial). The mental model is familiar to Auth0 developers — sign, scope, expire, revoke — applied to the human-to-agent boundary instead of the user-to-app boundary.
Comparison
| Auth0 | Manav | |
|---|---|---|
| Primary persona | Human user | Human + agent fleet |
| Default token | Session / M2M | Delegation token (scoped, capped, time-bound) |
| Per-agent revocation | Indirect | Native, sub-200ms |
| Article 14 alignment | Build-it-yourself | Native primitive |
| Work attestation (Layer 3) | Not in scope | Native |
| Identity portability | Tenant-locked | Self-sovereign |
| SDK surface | Excellent for human auth | MCP-native for agents |
| Pricing model | Per-MAU | Per-verification + license |
Use Auth0 when
You are building consumer or B2B login flows where the dominant identity question is "is this human authenticated?" Auth0 is the right tool, today and for years to come.
Use Manav when
Your AI footprint includes agents acting on humans' behalf, your audit log needs to satisfy Article 14, your work-attestation requirements outlive the user's tenure, or your roadmap depends on cross-platform delegation. None of these are Auth0 weaknesses; they are scope decisions Auth0 has made about which problem to solve.
Use both
The realistic enterprise pattern: Auth0 for human auth, Manav for human-to-agent delegation. Manav's SDK reads Auth0 sessions as a Layer 1 anchor with one configuration line. The two protocols compose; you do not choose between them.
Common objections
Buyers reasonably ask: do we have to choose? No. Most production stacks run both — the incumbent for the layer it owns, the new category for the layer the incumbent does not. The category split is real; the integration is clean; the procurement question is sequencing, not selection.
Frequently asked questions
Why not just use the incumbent for both? Because the incumbent was built for the previous problem. The fact that the workflow looks similar masks an architectural mismatch the incumbent cannot fix without rebuilding. We respect the incumbent; we do not pretend they ship the answer.
Where does the incumbent still win? In its native category. Use the incumbent where it was designed to operate; use the new layer where the new category begins. Most production stacks end up running both, with a clean handoff between them.
How long until we have to choose? You don't, mostly. The clean integration runs both side-by-side. The choice arrives only when a procurement contract forces consolidation, and by then the data on which layer is doing the work is usually clear.
Where to start
To go deeper, read manav vs okta for the architectural diff and mcp identity 12 lines for the broader vendor map. Most procurement teams converge on the same composition — incumbent plus the new layer — once they have walked both.
What Auth0 will do next
Auth0 will add an agent product. The product will solve the easy 60% of agent identity — registration, session, basic scope. It will not solve the hard 40% — delegation chains, magnitude caps, witness binding, regulator-grade audit, ZK selective disclosure. Customers will buy the easy 60% from Auth0 and the hard 40% from a specialist; that is the pattern we have seen in every identity wave. The specialist that earns the 40% wins the long compliance contracts and the reference-architecture conversations. The generalist that owns the 60% wins the reach and the cross-sell. Both can build durable businesses. The buyers who try to force the generalist to cover the 40%, or the specialist to cover the 60%, end up paying for both and getting neither. The clean read is to architect for composition from day one, and let each vendor do the part it is built for.
Auth0 made human login feel like one line. We're doing the same for agent delegation.