---
lang: en
title: "MongoDB Atlas Cloud vs Supabase Identity & Authentication"
canonical: "https://saasspecs.com/mongodb-atlas-vs-supabase/"
hvce_version: 1
tenant: saasspecs
slug: mongodb-atlas-vs-supabase
record_kind: comparison
content_sha256: 5b09fa422cf91db5b76fc895613e54c30464434aa9668b7f029a4a4e15ae00af
indexed_at: "2026-06-15T06:32:32.875Z"
license: citation-free
entities:
  -
    role: a
    slug: mongodb-atlas
    name: MongoDB Atlas Cloud
    type: Thing
    profile_url: "https://saasspecs.com/item/mongodb-atlas/?format=md"
  -
    role: b
    slug: supabase
    name: "Supabase Identity & Authentication"
    type: Thing
    profile_url: "https://saasspecs.com/item/supabase/?format=md"
---
# MongoDB Atlas Cloud vs Supabase Identity & Authentication

## Pair

- **A**: MongoDB Atlas Cloud
- **B**: Supabase Identity & Authentication

## Entity A

- **Title**: [MongoDB Atlas Cloud](https://saasspecs.com/item/mongodb-atlas/?format=md)
- **Schema type**: Corporation
- **Website**: https://www.mongodb.com
- **Email**: support@mongodb.com
- **Address**: 1633 Park Avenue, New York, New York, 10022, United States
- **Coordinates**: 40.7624, -73.9738
- **Deployment Link**: [Deploy MongoDB Atlas Cloud Stack Layer](https://www.mongodb.com/cloud/atlas/register)

### Summary

Fully managed document database with global clusters, search indexes, and flexible JSON document modeling.

### Description

MongoDB Atlas hosts replica sets and sharded clusters with automated backups, monitoring, and Data API access. Developers model evolving schemas with rich documents and aggregation pipelines without rigid relational migrations.

### Expert insight

Enable Atlas Search and compound indexes early for catalog filters before traffic scales past the M10 connection tier.

### Attributes

- **Free Tier Allowance**: 512 MB
- **Rate Limit Cap**: 100 Connections
- **Session Lifetime**: 12 Hours
- **Overage Fee per 1k MAU**: 0.25 USD/GB
- **MFA Support**: Enforced via MongoDB Cloud Organization MFA and federated identity
- **Enterprise SSO SAML**: Supported on M10+ and Enterprise with SAML, OIDC, and LDAP federation
- **Custom Domain Support**: Private endpoints via AWS PrivateLink, Azure VNet, and GCP VPC peering
- **Supported SDKs**: Node.js, Python, Java, Go, C#, Rust, PHP, Ruby, Swift, Kotlin
- **Social Providers**: Google, GitHub, and corporate SSO for Atlas organization login
- **Compliance Standards**: SOC 2 Type II, ISO 27001, HIPAA, PCI-DSS, GDPR, FedRAMP (Atlas for Government)
- **Webhook Fallback Policy**: Atlas Triggers and EventBridge integrations with configurable retry policies

## Entity B

- **Title**: [Supabase Identity & Authentication](https://saasspecs.com/item/supabase/?format=md)
- **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

## Facts (machine-readable)

| axis | unit | a_value | b_value | a_display | b_display |
| --- | --- | --- | --- | --- | --- |
| Free Tier Allowance | MB | 512 | 50000 | 512 MB | 50,000 MAU |
| Rate Limit Cap | Connections | 100 | 10000 | 100 Connections | 10,000 RPM |
| Session Lifetime | Hours | 12 | 24 | 12 Hours | 24 Hours |
| Overage Fee per 1k MAU | USD/GB | 0.25 | 0.003 | 0.25 USD/GB | 0 USD |

## Metrics

- **Free Tier Allowance**: 512 MB / 50,000 MAU
- **Rate Limit Cap**: 100 Connections / 10,000 RPM
- **Session Lifetime**: 12 Hours / 24 Hours
- **Overage Fee per 1k MAU**: 0.25 USD/GB / 0 USD

## Comparison context

This comparison covers the following catalog entities:

- [MongoDB Atlas Cloud](https://saasspecs.com/item/mongodb-atlas/?format=md) (a)
- [Supabase Identity & Authentication](https://saasspecs.com/item/supabase/?format=md) (b)