MongoDB Atlas Cloud vs PlanetScale Serverless MySQL Database

MongoDB Atlas Cloud vs PlanetScale Serverless MySQL Specs
  • Free Tier Allowance
  • Rate Limit Cap
  • Session Lifetime
  • Overage Fee per 1k MAU
Comparison chart between MongoDB Atlas Cloud and PlanetScale Serverless MySQL raw data
MetricMongoDB Atlas CloudPlanetScale Serverless MySQL
Free Tier Allowance512 MB5 GB
Rate Limit Cap100 Connections1,000 Connections
Session Lifetime12 Hours8 Hours
Overage Fee per 1k MAU0.25 USD/GB1.5 USD/GB
Deploy MongoDB Atlas
👉 Free M0 Shared Cluster • 512 MB Storage
Deploy PlanetScale MySQL
👉 5 GB Free Storage • Zero-Downtime Schema Migrations
MongoDB Atlas Cloud
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
PlanetScale Serverless MySQL
MFA Support:
Enforced via PlanetScale organization two-factor authentication
Enterprise SSO SAML:
Supported on Enterprise plans with SAML SSO and audit logging
Custom Domain Support:
Private connectivity via AWS PrivateLink and custom host routing on paid tiers
Supported SDKs:
MySQL wire protocol, Prisma, Drizzle, Rails, Laravel, Node.js mysql2
Social Providers:
GitHub OAuth for organization login and deploy request automation
Compliance Standards:
SOC 2 Type II, GDPR; HIPAA and PCI available on Enterprise
Webhook Fallback Policy:
Deploy request webhooks with configurable retry via external automation hooks
MongoDB Atlas Cloud
Enable Atlas Search and compound indexes early for catalog filters before traffic scales past the M10 connection tier.
PlanetScale Serverless MySQL
Use deploy requests and shadow tables to validate schema migrations without locking production write traffic.