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Cybersecurity · head to head

Arnica vs authentik

Arnica logo

Arnica

Cybersecurity

AI-native application security platform detecting and fixing vulnerabilities across the SDLC

From
Free
Rated
-
Full reviewWebsite
authentik logo

authentik

Cybersecurity

Open-source identity provider with flexible authentication flows

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arnica per-identity pricing ($25-$50/person/year) requires tracking active developers; authentik smaller project than Keycloak, with a correspondingly smaller community and fewer integration guides
  • They diverge on capability: Arnica covers AI SAST, authentik covers Configurable flows.

Where they differ

Only the attributes on which Arnica and authentik actually diverge.

Attributes where Arnica and authentik differ
AttributeArnicaauthentik
Pricing modelPer-identity subscription with annual discountOpen-source core with a paid enterprise tier
PlatformsWeb, GitHub, IDEDocker, Kubernetes, Linux, Self-hosted

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Arnica

  • AI SAST
  • Software Composition Analysis
  • Secrets detection
  • IaC scanning
  • Container scanning
  • SBOM generation
  • Agentic rules
  • Pipelineless integration

Only in authentik

  • Configurable flows
  • Protocol support
  • Application proxy
  • Modern admin interface

What people use each for

The jobs each tool is most often brought in to do.

Arnica

  • Detecting AI-generated vulnerabilities in Copilot and Cursor suggestionsnot authentik
  • Finding hardcoded secrets before they reach productionnot authentik
  • Mapping container vulnerabilities back to source codenot authentik
  • Generating SBOM for supply chain compliance requirementsnot authentik
  • Scanning infrastructure-as-code for misconfiguration risksnot authentik

authentik

  • Self-hosted SSO across internal services without commercial identity pricingnot Arnica
  • Putting authentication in front of applications that have none, via the proxynot Arnica
  • Teams who tried Keycloak and wanted something less heavynot Arnica

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Arnica

  • Per-identity pricing ($25-$50/person/year) requires tracking active developers
  • Overage identity tracking via 90-day PR activity can be unpredictable
  • Free plan limited to weekly updates, requiring upgrade for real-time scanning
  • Advanced add-ons (Image Scanning, AI SAST, Agentic Rules Enforcer) pricing not published
  • On-premises deployment limited to Enterprise tier

authentik

  • Smaller project than Keycloak, with a correspondingly smaller community and fewer integration guides
  • The flow model is flexible but conceptually unfamiliar, and simple setups can feel over-abstracted
  • Enterprise support and some governance features sit behind the paid tier
  • Self-hosted identity is still yours to secure, patch and keep available

Pricing, plan by plan

Arnica

Free
  • FreeFree
    • No credit card required
    • 14-day trial available
    • Weekly risk identification updates
  • Core Business$360/year
    • Monthly billing option at $30/identity/month
    • Annual billing at $25/identity/month (17% discount)
    • Real-time risk scanning and notifications
  • Core Enterprise$720/year
    • Monthly billing option at $60/identity/month
    • Annual billing at $50/identity/month (17% discount)
    • All Core Business features

authentik

Free
  • Open sourceFree
    • Full identity provider
    • All protocols
    • Community support

Which should you pick?

Choose Arnica if

  • You need ai sast.
  • You want to start without paying.
  • You work on Web, GitHub, IDE.
  • You also want software composition analysis.
Arnica review

Choose authentik if

  • You need configurable flows.
  • You want to start without paying.
  • You work on Docker, Kubernetes, Linux, Self-hosted.
  • You also want protocol support.
authentik review

Questions people ask

Is Arnica or authentik better?
Neither clearly leads. Arnica starts at Free and authentik at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arnica or authentik?
Arnica starts at Free and authentik at Free.
Does Arnica or authentik run on more platforms?
Arnica runs on Web, GitHub, IDE. authentik runs on Docker, Kubernetes, Linux, Self-hosted.
Can I use Arnica for free?
Both have a free tier, so you can try either at no cost before committing.
What is Arnica best used for?
Arnica is most often used for detecting ai-generated vulnerabilities in copilot and cursor suggestions, finding hardcoded secrets before they reach production, mapping container vulnerabilities back to source code, generating sbom for supply chain compliance requirements. Of those, detecting ai-generated vulnerabilities in copilot and cursor suggestions and finding hardcoded secrets before they reach production are not what authentik is typically brought in for.
What can Arnica do that authentik cannot?
Arnica covers AI SAST, Software Composition Analysis, Secrets detection, IaC scanning. authentik covers Configurable flows, Protocol support, Application proxy, Modern admin interface.

Answered from the vendors’ own pages

Arnica: How are identities defined in Arnica pricing?

Identities are any users and other contributing entities that contributed code and/or had PR activity during the last 90 days. This ensures billing matches active developers.

Source
authentik: Is authentik free?

The open-source edition is free and complete for most use. An enterprise tier adds support and additional features.

Arnica: What is the annual discount?

Annual prepayment offers approximately 17% savings versus monthly billing. Core Business annual is $300/identity versus $360 for monthly.

Source
authentik: authentik or Keycloak?

authentik is generally reported as easier to run and administer; Keycloak is more established with a larger community and Red Hat behind it.

Arnica: Can I cancel or downgrade Arnica anytime?

Yes. Subscriptions can be cancelled or downgraded at any time. Overage identities receive automatic protection with true-up invoicing.

Source
authentik: Can authentik protect apps with no login of their own?

Yes. Its application proxy places authentication in front of services that have no built-in authentication.

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