Frontegg's free Pay-as-you-Go tier bundles 7,500 MAU with 5 enterprise SSO/SCIM connections and unlimited organizations, pricing beyond that via a usage-based…
Best for Frontegg: Teams that need enterprise SSO and SCIM connections working from the free tier onward, without waiting to upgrade, fit Frontegg's Pay-as-you-Go model.
Best for PropelAuth: B2B SaaS teams that want published, predictable pricing and need MCP server authentication for AI-agent use cases are better served by PropelAuth's Growth plan and above.
At a Glance
Frontegg
PropelAuth
Primary category
Security
Security
Rating
Not documented
Not documented
Pricing model
Freemium (usage-based Pay-as-you-Go plus custom Enterprise)
Freemium subscription based on monthly active users (MAUs), with a free tier, paid Growth and Growth Plus plans, and custom-quoted Enterprise pricing for larger deployments.
Starting price
Free up to 7,500 monthly active users
Free for up to 10,500 monthly active users; Growth plan starts at $150 per month
PropelAuth: PropelAuth's Free plan includes 10,000 MAUs but no SSO; unlimited SAML/enterprise SSO only unlocks on the $150/month Growth plan.
Teams onboarding enterprise pilot customers early need SSO available before committing to a paid plan.
SCIM/Directory Sync Pricing
Frontegg: SCIM connections are included starting on Frontegg's free tier (5 included).
PropelAuth: PropelAuth gates SCIM/directory sync behind the $500/month Growth Plus plan, plus an additional $100 per SCIM connection.
The cost of enabling automated enterprise directory provisioning differs substantially between the two.
MCP / AI-Agent Authentication
Frontegg: Frontegg's AI-related offering is Agen.co, a separate agentic access layer for interacting with SaaS products via generative AI platforms.
PropelAuth: PropelAuth has a dedicated MCP server authentication feature (OAuth 2.1 flows, token revocation) available on the Growth plan and above.
MCP-specific authentication is a distinct capability from a general agentic access layer, and matters for products exposing MCP servers to AI agents.
Free Tier MAU
Frontegg: Frontegg's Pay-as-you-Go plan includes 7,500 MAU.
PropelAuth: PropelAuth's Free plan includes 10,000 MAUs.
A higher free MAU ceiling delays when a growing product needs to start paying.
Pricing Transparency
Frontegg: Frontegg relies on an interactive usage calculator for pricing beyond the free tier, without published per-unit rates.
PropelAuth: PropelAuth publishes fixed monthly prices for Growth ($150) and Growth Plus ($500), with itemized overage fees: extra MAUs at $0.05/user, SCIM connections at $100 each, and audit log export at $50/connection.
Published, itemized pricing makes it easier to forecast costs without a sales conversation.
Feature-by-Feature
Free Tier & Pricing
Feature
Frontegg
PropelAuth
Free plan MAU
Available
Available
SSO on free tier
Available
Unavailable
Published flat pricing
Limited
Available
Enterprise Identity Features
Feature
Frontegg
PropelAuth
SCIM/directory sync
Available
Available
Self-service SSO setup
Not documented
Available
User impersonation
Not documented
Available
Advanced security options
Available
Available
AI/Agent & Developer Tools
Feature
Frontegg
PropelAuth
MCP server authentication
Not documented
Available
AI/agentic access layer
Available
Not documented
API key authentication with rate limiting
Not documented
Available
Framework/SDK breadth
Not documented
Available
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Frontegg
Pay as You Go — Free to start, then usage-based Monthly (usage-based)
Generous free tier (7,500 MAU) that includes real SSO and SCIM connections, unusual among CIAM vendors
Purpose-built for B2B multi-tenancy rather than bolted on afterward
Combines identity with entitlements and subscription logic, reducing the need for a separate feature-gating system
Both hosted UI and headless API options give engineering teams flexibility
Cons
Usage-based overage pricing beyond the free tier is not fully transparent on the public pricing page
Enterprise tier requires a sales conversation, adding friction for teams wanting instant self-serve pricing
Smaller company than Okta or Auth0, which may matter to security-conscious enterprise buyers evaluating vendor stability
Migrating an existing large user base into Frontegg's tenant model can require nontrivial engineering work
PropelAuth
Pros
Purpose-built for B2B SaaS with organizations, roles, and permissions modeled as core concepts rather than add-ons
Unlimited SSO connections included on paid plans with no per-connection fees, unlike some competitors
Generous free tier covering up to 10,500 monthly active users
Self-serve SSO and SCIM setup reduces engineering overhead when onboarding enterprise customers
Cons
Small team size (estimated under 10 employees) means less scale than larger, more established identity providers
Less brand recognition than major identity platforms like Auth0 or Okta, which may matter for enterprise procurement checklists
SCIM directory sync requires stepping up to the pricier Growth Plus plan
As a young, venture-backed startup, long-term product roadmap and company stability carry more uncertainty than incumbents
Use Cases
Choose Frontegg: Teams that need enterprise SSO and SCIM connections working from the free tier onward, without waiting to upgrade, fit Frontegg's Pay-as-you-Go model.
Choose PropelAuth: B2B SaaS teams that want published, predictable pricing and need MCP server authentication for AI-agent use cases are better served by PropelAuth's Growth plan and above.
Need both: As competing B2B authentication platforms, there's no architecture where an application would run both at once. A company evaluating vendors might use Frontegg for a product that needs free-tier SCIM immediately while choosing PropelAuth for a separate product built around MCP server authentication, but these would be two distinct deployments.
Frontegg
Adding enterprise SSO to a growing SaaS product — A B2B SaaS company preparing to sell to larger enterprise customers integrates Frontegg to quickly offer SAML/OIDC SSO and SCIM provisioning, satisfying security questionnaires without building an in-house identity team.
Multi-tenant platform user management — A vertical SaaS platform serving many customer organizations uses Frontegg's tenant and organization model to isolate each customer's users, roles, and permissions while managing them from a single admin console.
Plan-based feature gating — A subscription SaaS product ties its pricing tiers directly to Frontegg's entitlements module so that feature access automatically updates when a customer upgrades or downgrades their plan.
PropelAuth
Enterprise-ready B2B SaaS onboarding — SaaS companies use PropelAuth to quickly offer SSO and SCIM to enterprise customers during procurement without building identity infrastructure in-house.
Multi-tenant organization management — Products with complex customer structures use PropelAuth's organization model to manage users who belong to multiple companies with different roles in each.
Reducing engineering overhead on auth — Engineering teams offload authentication, session management, and enterprise identity features to PropelAuth instead of maintaining custom auth infrastructure.
Frequently Asked Questions
Which includes enterprise SSO on its free tier?
Frontegg does, with 5 enterprise SSO/SCIM connections included on its free Pay-as-you-Go tier. PropelAuth's Free plan has no SSO; it requires the $150/month Growth plan.
How does SCIM pricing compare?
Frontegg includes SCIM connections on its free tier. PropelAuth gates SCIM/directory sync behind its $500/month Growth Plus plan, plus $100 per SCIM connection.
Which supports MCP server authentication for AI agents?
PropelAuth has a dedicated MCP server authentication feature on its Growth plan and above. Frontegg's AI offering, Agen.co, is a separate agentic access layer rather than MCP-specific authentication.
Which has more predictable pricing?
PropelAuth publishes fixed monthly prices ($150 Growth, $500 Growth Plus) with itemized overage fees. Frontegg uses an interactive calculator without published per-unit rates.
Which has a bigger free MAU allowance?
PropelAuth's Free plan includes 10,000 MAUs, versus Frontegg's 7,500 MAU on its free Pay-as-you-Go tier.
What frameworks does PropelAuth support?
PropelAuth supports React, Next.js, FastAPI, Flask, .NET, Spring Boot, Remix, Axum, Go, Laravel, and others.