---
lang: en
type: Thing
title: "Supabase Auth Specs Limits, Webhooks, & Architecture"
description: Verify Supabase authentication limits. Comprehensive metrics tracking pricing tiers, rate limits, and webhook retry structures.
llms_summary: "Supabase Identity & Authentication. Verify Supabase authentication limits. Comprehensive metrics tracking pricing tiers, rate limits, and webhook retry structures. canonical profile on SaaS Specifications Database"
canonical: "https://saasspecs.com/item/supabase/"
hvce_version: 1
tenant: saasspecs
slug: supabase
record_kind: entity-profile
content_sha256: 0aed4f70389010f2da346bb4b77ae6ee0c86d167cf5913a4418cc99956027418
indexed_at: "2026-07-05T09:03:45.274Z"
license: citation-free
entities:
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    slug: supabase
    name: "Supabase Identity & Authentication"
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---
# Supabase Identity & Authentication

An open-source Firebase alternative utilizing a highly scalable PostgreSQL metadata engine.

## Record

- **Schema type**: Corporation
- **Website**: https://supabase.com
- **Email**: support@supabase.io
- **Address**: 85 Harrison St, San Francisco, California, 94105, United States
- **Coordinates**: 37.7833, -122.3999
- **Deployment Link**: [Deploy Supabase Identity & Authentication Stack Layer](https://partner.supabase.com/your-affiliate-id)

### Summary

An open-source Firebase alternative utilizing a highly scalable PostgreSQL metadata engine.

### Description

Supabase Auth provides a robust authentication layer built on GoTrue. It scales smoothly up to high-volume user tiers without custom backend code infrastructure.

### Attributes

- **Free Tier Allowance**: 50,000 MAU
- **Rate Limit Cap**: 10,000 RPM
- **Session Lifetime**: 24 Hours
- **Overage Fee per 1k MAU**: $0
- **MFA Support**: TOTP, WebAuthn, Phone SMS
- **Enterprise SSO SAML**: Available on Pro & Enterprise tiers via custom identity mapping
- **Custom Domain Support**: Available on Pro Tier ($20/mo) with full SSL configuration
- **Supported SDKs**: Next.js, React, Vue, Svelte, Node, Python, Go, Flutter, Swift
- **Social Providers**: Google, GitHub, Apple, Discord, GitLab, Bitbucket, Twitter
- **Compliance Standards**: SOC2 Type II, GDPR, HIPAA Compliant (with BAA agreement)
- **Webhook Fallback Policy**: Exponential backoff up to 24 hours with automatic failure truncation


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