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
Supabase AuthhybridFree up to 50k MAU
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 50k MAU$25/mo ProCustom Enterprise
Open Source
Self-Hosted
SDK Languages
javascripttypescriptpythonjavaswiftkotlingo
javascripttypescriptpythondartswiftkotlin
Frameworks
langchainvercel-ai
langchainvercel-ai
Compliance
soc2gdpr
soc2gdprhipaa
Best For
Rapid prototyping and Google-native stacks; low-friction auth for AI apps that don't need agent-specific authorization
AI apps built on the Supabase BaaS stack; projects that need auth + database + storage in one platform
Limitations
No token delegation, no FGA, no agent SDK; vendor lock-in to Google Cloud; limited authorization model
Auth is tightly coupled to Supabase's ecosystem; no token delegation, no FGA, no agent SDK; auth is secondary to the BaaS offering
Supported Not supported Unverified