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Clerk MCP vs Keycloak: Which is Better in 2026?

Choosing between Clerk MCP and Keycloak comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: Keycloak wins this matchup. Porkbun is our overall Developer Tools pick. Jotai is our free Developer Tools pick. Pick Clerk MCP if you need developer tools.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Oct 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

Clerk MCP

Manage users, orgs, and roles via an agent toolkit

Best for you if:

  • • You want manage users, orgs, and roles via an agent toolkit

Keycloak

Open-source identity and access management

Best for you if:

  • • You want a fully free tool (Clerk MCP requires payment)
  • • You want open source identity
  • • You want self-hostable
At a Glance
Clerk MCPClerk MCP
KeycloakKeycloak
Starts at
FreeFree tier available
FreeFree tier available
Best For
Developer ToolsIdentity & Access
Rating
--
Free plan
Yes Yes

Choose Clerk MCP or Keycloak?

Clerk MCP

Choose Clerk MCP if

Manage users, orgs, and roles via an agent toolkit

  • You want manage users, orgs, and roles via an agent toolkit
  • Your work is developer tools-shaped, not identity & access-shaped
Keycloak

Choose Keycloak if

Open-source identity and access management

  • You want a fully free tool (Clerk MCP requires payment)
  • You want open source identity
  • You want self-hostable
  • Your work is identity & access-shaped, not developer tools-shaped
FeatureClerk MCPKeycloak
Pricing ModelFreemiumFree
User RatingNo ratings yetNo ratings yet
Categories
Developer ToolsAI Coding
Identity & AccessSecurity

In-Depth Analysis

Clerk MCPClerk MCP

Manage users, orgs, and roles via an agent toolkit

Starts at Free
Good value

Clerk MCP's pricing is fair for its feature set, with a generous free tier (Hobby) that includes up to 50K MRU per app and custom domains.

Watch out

Overage fees $0.02 per additional MRU on Pro

Key features

Read and administer user records and their profile dataCreate and manage organizations, memberships, and role assignmentsIssue and manage invitations to an instance or an organizationRestrict which tool categories the server loads at startupAuthenticate with a backend secret key scoped to one Clerk instanceUse Clerk OAuth to authorize agents connecting to an MCP server you build

KeycloakKeycloak

Open-source identity and access management

Starts at Free
Great value

Keycloak's pricing is exceptionally generous, being entirely free as an open-source solution.

Strengths

  • +Open source identity
  • +Self-hostable
  • +Feature rich
  • +No per-user cost
  • +Enterprise ready

Weaknesses

  • -Complex to set up
  • -Requires maintenance
  • -Learning curve
  • -Java-based
  • -UI dated

Key features

Identity managementSSOLDAPSocial loginAdmin consoleOpen source

Pricing: Clerk MCP vs Keycloak

PlanClerk MCPKeycloak
Tier 1
Free
Hobby
Free
Open Source
Tier 2
$20/mo
Pro
N/A
Tier 3
$250/mo
Business
N/A
Tier 4
Contact us
Enterprise
N/A

Pricing verified from each vendor's public pricing page. Compare in detail on Clerk MCP pricing and Keycloak pricing.

Who Should Use What?

On a budget?

Keycloak is free. Clerk MCP is freemium.

Go with: Keycloak

Want the highest-rated option?

Neither has ratings yet.

Too early to call on ratings — compare on features and pricing.

Value user reviews?

Neither has ratings yet.

Too early to call — neither has ratings yet.

3 Questions to Help You Decide

1

What's your budget?

Clerk MCP is freemium. Keycloak is free. Go with Keycloak if free matters most.

2

What's your use case?

Clerk MCP is a developer tools tool. Keycloak is in identity & access. Pick the category that matches your needs.

3

How important are ratings?

Neither has ratings yet.

Key Takeaways

Keycloak

  • Completely free
  • Our pick for this comparison

Clerk MCP

  • Better fit for developer tools

The Bottom Line

Keycloak wins this matchup. Porkbun is our overall Developer Tools pick. Jotai is our free Developer Tools pick.

Frequently Asked Questions

Is Clerk MCP or Keycloak better?

Keycloak is rated in our evaluation. Clerk MCP is freemium and Keycloak is free.

What are Clerk MCP and Keycloak used for?

Clerk MCP: Manage users, orgs, and roles via an agent toolkit. Keycloak: Open-source identity and access management.

What does Clerk MCP cost vs Keycloak?

Clerk MCP is freemium (free tier + paid plans). Keycloak is completely free. Visit their websites for detailed pricing.

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