Compare Tools
Pick a category, then select 2–3 tools to compare side by side.
Category
Select 2–3 tools to compare
Firebase AuthcloudFree up to 50k MAU
StytchcloudFree up to 25 orgs
Agent Sdk
Token Delegation
Human In The Loop
Fga
Mcp Support
Async Authorization
Pricing
Free up to 50k MAUBlaze pay-as-you-goPhone auth: 10¢/verification
Free up to 25 orgsUsage-based ProCustom Enterprise
Open Source
Self-Hosted
SDK Languages
javascripttypescriptpythonjavaswiftkotlingo
javascripttypescriptpythonrubygo
Frameworks
langchainvercel-ai
langchainvercel-ai
Compliance
soc2gdpr
soc2gdpr
Best For
Rapid prototyping and Google-native stacks; low-friction auth for AI apps that don't need agent-specific authorization
API-first auth for AI startups; headless identity with flexible session management
Limitations
No token delegation, no FGA, no agent SDK; vendor lock-in to Google Cloud; limited authorization model
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