Compare Tools
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Category
Select 2–3 tools to compare
Auth0
ClerkAgent Sdk
Token Delegation
Human In The Loop
Fga
Mcp Support
Async Authorization
Pricing
Free up to 25k MAU$35/mo EssentialsCustom Enterprise
Free up to 10k MAU$25/mo ProCustom Enterprise
Open Source
Self-Hosted
SDK Languages
pythonjavascripttypescriptgojavacsharprubyphp
javascripttypescript
Frameworks
langchainllamaindexvercel-aiopenai-agents
vercel-ailangchainnextjsremix
Compliance
soc2hipaagdprpci-dss
soc2gdpr
Best For
Multi-tenant SaaS, token delegation for agents, fine-grained authorization at scale
Next.js and React AI apps needing fast auth setup with prebuilt UI components
Limitations
Vendor lock-in on cloud plan; self-hosted (Private Cloud) is enterprise-tier only; dynamic client registration for MCP requires Enterprise plan to secure against abuse
JavaScript/TypeScript only; no token delegation or FGA; not designed for complex agent authorization patterns
Supported Not supported Unverified