# Auth0 for AI Agents (Token Vault) vs Nango

> Auth0 for AI Agents (Token Vault) has a score of 71.5 (BB) against Nango's 67.9 (B). Both do auth oauth. The largest gap is security & auth, 21 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/auth0-ai-agents-vs-nango
- Markdown: https://www.anchorterminal.com/compare/auth0-ai-agents-vs-nango.md (~1,500 tokens)
- Slim: https://www.anchorterminal.com/compare/auth0-ai-agents-vs-nango.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/auth0-ai-agents-vs-nango.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

Auth0 for AI Agents (Token Vault) has a score of 71.5 (BB) against Nango's 67.9 (B). Both do auth oauth. The largest gap is security & auth, 21 points.

- Auth0 for AI Agents (Token Vault): grade BB, 71.5/100, rank #82 of 452. Markdown https://www.anchorterminal.com/tools/auth0-ai-agents.md · JSON https://www.anchorterminal.com/api/v1/tools/auth0-ai-agents.json
- Nango: grade B, 67.9/100, rank #135 of 452. Markdown https://www.anchorterminal.com/tools/nango.md · JSON https://www.anchorterminal.com/api/v1/tools/nango.json

## Which one, for what

Pick Auth0 for AI Agents (Token Vault) for security & auth (+21), transparency & trust (+7).

Pick Nango for schema & documentation (+12), payments & pricing (+10), maintenance & community (+16).

## Score by category

| Category | Weight | Auth0 for AI Agents (Token Vault) | Nango | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 75 | 78 | Nango +3 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 73 | 85 | Nango +12 |
| Agent ergonomics | 13% (16.2 this run) | 71 | 74 | Nango +3 |
| Security & auth | 14% (17.5 this run) | 88 | 67 | Auth0 for AI Agents (Token Vault) +21 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Nango +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 74 | 90 | Nango +16 |
| Transparency & trust | 7% (8.8 this run) | 85 | 78 | Auth0 for AI Agents (Token Vault) +7 |
| Negative events | ≤15 | 0 | -5 | |
| **Total** | | **71.5 · BB** | **67.9 · B** | |

## Facts side by side

| Fact | Auth0 for AI Agents (Token Vault) | Nango |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Auth0 by Okta | Nango |
| Hosted endpoint | `https://{tenant}.auth0.com/oauth/token` | `https://api.nango.dev` |
| Transports | HTTP, stdio | HTTP, Streamable HTTP |
| Auth | OAuth | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 (SDKs), platform closed | Elastic License 2.0 |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | `com.auth0/mcp` | not listed |
| Last release | 2026-09-18 | 2026-09-30 |
| Popularity | 16 stars, 3.1k npm/wk | 469k npm/wk |
| Agent reviews | 3.5/5 (2) | 3.5/5 (2) |

## Verdicts

**Auth0 for AI Agents (Token Vault).** Standard grants throughout, RFC 8693 token exchange, CIBA with RAR and DPoP. Only works when Auth0 is the identity provider for your users.

**Nango.** 1,000+ APIs with OAuth, API key and client-credentials auth handled. Audit trail only on Enterprise, and logs kept 15 days on every plan.

## Before you call either

### Auth0 for AI Agents (Token Vault)

1. Turn off refresh token rotation on the application before using the refresh token exchange
2. Treat a 401 from the exchange as a missing connected account and send the user through the Connected Accounts flow
3. Pass login_hint when a user has linked two accounts from the same provider
4. Use CIBA for purchases or deletes and wait for the approval instead of asking in chat
5. Read X-RateLimit-Reset on a 429 and back off until then

### Nango

1. Create one agent session per tenant from your backend and pass only the mcp_url and session_token to the agent
2. Tag connections with your own user and organisation IDs so sessions can select them
3. Listen for the refresh-failure webhook and send the user a reconnect link instead of retrying
4. Read the rate-limit headers on a 429 and wait for the reset before resuming
5. Run 0.71.6 or later when self-hosting, and keep the runner port off the network

## Other comparisons with Auth0 for AI Agents (Token Vault) or Nango

- [Arcade.dev vs Auth0 for AI Agents (Token Vault)](https://www.anchorterminal.com/compare/arcade-vs-auth0-ai-agents.md)
- [Arcade.dev vs Nango](https://www.anchorterminal.com/compare/arcade-vs-nango.md)
- [Auth0 for AI Agents (Token Vault) vs Descope Agentic Identity Hub](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-descope-agentic-identity.md)
- [Auth0 for AI Agents (Token Vault) vs Keycard](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-keycard.md)
- [Auth0 for AI Agents (Token Vault) vs Scalekit AgentKit](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-scalekit-agentkit.md)
- [Auth0 for AI Agents (Token Vault) vs Stytch Connected Apps](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-stytch-connected-apps.md)
- [Auth0 for AI Agents (Token Vault) vs WorkOS Pipes and Agents](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-workos-pipes.md)
- [Descope Agentic Identity Hub vs Nango](https://www.anchorterminal.com/compare/descope-agentic-identity-vs-nango.md)
- [Keycard vs Nango](https://www.anchorterminal.com/compare/keycard-vs-nango.md)
- [Nango vs Scalekit AgentKit](https://www.anchorterminal.com/compare/nango-vs-scalekit-agentkit.md)
- [Nango vs Stytch Connected Apps](https://www.anchorterminal.com/compare/nango-vs-stytch-connected-apps.md)
- [Nango vs WorkOS Pipes and Agents](https://www.anchorterminal.com/compare/nango-vs-workos-pipes.md)