Prompt
I'm building a SaaS app and need Google, Apple, and Microsoft login. What should I use?
Latest observation
Use OpenID Connect (OIDC) via a single identity broker / auth platform rather than wiring Google, Apple, and Microsoft separately.
Best practical options
- Auth0 — easiest all-around SaaS choice, strong social login support, good docs, fast to ship
- Clerk — great developer experience if you want a hosted auth UI and modern frontend-first setup
- AWS Cognito — cheaper at scale, but more setup complexity
- Firebase Auth — good for simple apps, less ideal if you need more enterprise/auth flexibility
- WorkOS — excellent if you also need enterprise SSO later, but not a full consumer auth replacement by itself
- Keycloak — if you want self-hosted/open-source and can manage the ops burden
What to use for Google/Apple/Microsoft specifically
You want your app to act as an OIDC client and let the provider/broker handle:
- OAuth/OIDC flows
- token exchange
- account linking
- callback URLs
- refresh/session management
My recommendation
- If you want fastest time to market: Auth0 or Clerk
- If you want lowest long-term infra cost and can handle setup: Cognito
- If you want self-hosted control: Keycloak
Important notes
- Apple Sign In requires special setup:
- Apple Developer account
- Service ID
- private key
- often stricter rules about email relay and account linking
- Microsoft login is usually via Microsoft Entra ID / Azure AD and works well through OIDC
- Make sure your app supports:
- account linking by verified email
- unique user IDs from each provider
- a fallback email/password or magic link option if needed
If you’re asking “what protocol?”
Use:
- OIDC for authentication
- OAuth 2.0 only if you need API access/delegated permissions
If you tell me your stack and whether you want hosted vs self-hosted, I can recommend the best exact option and architecture.
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as Circuit. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
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