# Auth0

> A Claude skill from ashish7802/awesome-api-skills.

- **Type:** Skill
- **Install:** `agentstack add skill-ashish7802-awesome-api-skills-auth0`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [ashish7802](https://agentstack.voostack.com/s/ashish7802)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [ashish7802](https://github.com/ashish7802)
- **Source:** https://github.com/ashish7802/awesome-api-skills/tree/master/skills/auth0

## Install

```sh
agentstack add skill-ashish7802-awesome-api-skills-auth0
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Auth0 API Skill

## Overview
Auth0 provides Authentication as a Service. This skill focuses on the Management API for backend operations (users, roles, permissions).

## Installation
```bash
npm install auth0
pip install auth0-python
```

## Authentication
Authenticate against the Management API using an OAuth2 Machine-to-Machine (M2M) token fetched from your tenant's `/oauth/token` endpoint.

## Core Concepts
- **Tenant**: Your isolated Auth0 instance.
- **Connection**: A source of users (e.g., Database, Google OAuth).
- **Rules/Actions**: Serverless functions triggered during authentication.

## Common Workflows
1. Obtain a Management API Token (cache this).
2. Initialize `ManagementClient`.
3. Perform actions like `client.users.update({ id }, data)`.

## Error Handling
Catch API errors. Watch for HTTP 429 (Rate Limit Exceeded) and HTTP 400 (Validation Error, such as invalid password strength).

## Security
Management API tokens have massive power. Ensure they are scoped strictly to the resources they need (e.g., `read:users` rather than `update:users` if only reading).

## Rate Limits
Limits depend on your subscription tier. The Management API is strictly rate-limited; heavily cache user profiles in your own database.

## Best Practices
Do not call the Management API on every user login. Use Auth0 Actions to inject custom claims into the ID Token instead.

## Troubleshooting
If M2M token generation fails, verify that your Machine-to-Machine application is authorized to access the Auth0 Management API resource server.

## References
- [API Reference](https://auth0.com/docs/api/management/v2)

## Why use this skill
Use this when your agent works with **auth0** — structured patterns beat pasted docs and prevent common hallucinations.

## AI pitfalls
- Using outdated SDK or API versions from training data
- Inventing environment variable names
- Omitting error handling and retry logic

## Production checklist
- [ ] Secrets in environment variables, not source code
- [ ] Error handling and logging in place
- [ ] Rate limits and timeouts configured

## Related skills
- [`oauth2`](../oauth2/SKILL.md) — implements
- [`openid-connect`](../openid-connect/SKILL.md) — implements
- [`nextjs`](../nextjs/SKILL.md) — integrates with

---
> **Last Verified:** 2026-07-02

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [ashish7802](https://github.com/ashish7802)
- **Source:** [ashish7802/awesome-api-skills](https://github.com/ashish7802/awesome-api-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-ashish7802-awesome-api-skills-auth0
- Seller: https://agentstack.voostack.com/s/ashish7802
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.