Compare Tools
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Category
Select 2–3 tools to compare
Clerk
StytchAgent Sdk
Token Delegation
Human In The Loop
Fga
Mcp Support
Async Authorization
Pricing
Free up to 10k MAU$25/mo ProCustom Enterprise
Free up to 25 orgsUsage-based ProCustom Enterprise
Open Source
Self-Hosted
SDK Languages
javascripttypescript
javascripttypescriptpythonrubygo
Frameworks
vercel-ailangchainnextjsremix
langchainvercel-ai
Compliance
soc2gdpr
soc2gdpr
Best For
Next.js and React AI apps needing fast auth setup with prebuilt UI components
API-first auth for AI startups; headless identity with flexible session management
Limitations
JavaScript/TypeScript only; no token delegation or FGA; not designed for complex agent authorization patterns
No FGA, no dedicated agent SDK, no human-in-the-loop; good primitives but requires more DIY for complex agent patterns
Supported Not supported Unverified