Vulnerability Scanning & Code Security
4.2/5.0
VerifiedFreemiumLast technical review:
Markdown for AI (.md)

Kairos

Open-source risk and fraud decisioning platform.

Pricing

$0/mo

Freemium
Score

4.2/5

Last technical review
2026-11-13
Available plansVisit website (opens in a new tab)

Technical Overview

Kairos is an open-source platform built for risk decisioning and fraud detection. Geared towards engineering and security teams that require oversight on critical operations, it enables the automation of validation workflows and real-time data analysis. Its modular architecture facilitates integration into existing systems to manage compliance policies and threat mitigation in a scalable manner.

Analyst Evaluation: Pros and Limitations

Verified Advantages

  • Open-source architecture for full auditability of decision logic.
  • High flexibility for integrating custom risk rules into existing workflows.
  • Technically-oriented design with strong support for self-hosted infrastructures.

Technical Considerations

  • Steep learning curve requiring technical expertise for initial setup.
  • Technical documentation for enterprise users is less comprehensive compared to proprietary competitors.

Technical Capabilities & Features

5/7
Included:REST & GraphQL API
Not available:SSO / SAML Authentication
Included:Self-Hosted Option
Included:Full Data Export
Included:Role-Based Access Control (RBAC)
Not available:Custom Domains & SSL
Included:Immutable Audit Logs
Scorecard
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Technical Scorecard: Kairos

80/100
DX & Tech Documentation
Favorable
70/100
Pricing Fairness
Excellent
90/100
Security & Governance
Excellent
80/100
Data Portability & Sovereignty
Excellent
85/100
Performance & Reliability
Favorable
75/100

Time to Value & Fit by Segment: Kairos

Estimated Time-to-Value2 - 4 weeks (Planned)

Requires staging setup, data synchronization, and environment configuration.

Learning CurveHigh (Specialized)

Requires dedicated DevOps or infrastructure architecture expertise.

Fit Index by Organization Size

Startup & Agile Teams1 to 50 members
80%
Mid-Market & Scaleup50 to 500 members
70%
Corporate Enterprise500+ members
60%
Pricing & TCO
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Pricing

$0.00/mo

Model: FREEMIUM.

Free Tier Verification:

  • No credit card required
  • Commercial use allowed
  • Monthly recurring quota reset
  • No mandatory watermarks
Get Kairos (opens in a new tab)

Billing Risks & Hidden Clauses: Kairos

Free Tier Limits:

Open-source availability allows for free self-hosted usage.

Audited Billing Critical Points:
  • Infrastructure costs may scale non-linearly with high-volume decision requests.
Total Cost of Ownership (TCO) Projection: Kairos$0.00/mo
Deterministic cost estimation at 12 and 36 months based on team size, including SSO tax premiums and annual prepay discounts.
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Indie / Solo (1 active user)

Solo developer or independent technical founder.

Base Monthly Cost
$12/month
1 active user
12-Month Investment
$122/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$366total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 3 active users

Calculated infrastructure: VPS 1 vCPU / 2GB RAM (~$5) + 0.5h DevOps/mes ($20)

Annual VPS + DevOps Cost$300/year
Differential vs SaaS LicensingSaaS is $178/year
Startup (10 active users)

Agile engineering team in validation and early traction stage.

Base Monthly Cost
$120/month
10 active users
12-Month Investment
$1,224/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$3,672total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 10 active users

Calculated infrastructure: VPS 2 vCPU / 8GB RAM (~$15) + 2h DevOps/mes ($80)

Annual VPS + DevOps Cost$1,140/year
Differential vs SaaS LicensingSavings of $84/year
Growth (25 active users)

Scaling company with team governance and granular access control requirements.

Base Monthly Cost
$300/month
25 active users
12-Month Investment
$3,060/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$9,180total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 28 active users

Calculated infrastructure: Cluster VPS 4 vCPU / 16GB RAM (~$45) + 6h DevOps/mes ($240)

Annual VPS + DevOps Cost$3,420/year
Differential vs SaaS LicensingSaaS is $360/year
Scaleup (100 active users)

Established organization with enterprise security policies and mandatory SAML/SSO.

Base Monthly Cost
$1,200/month
100 active users
12-Month Investment
$12,240/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$36,720total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 78 active users

Calculated infrastructure: Infraestructura HA redundante + Backups (~$150) + 16h DevOps/mes ($640)

Annual VPS + DevOps Cost$9,480/year
Differential vs SaaS LicensingSavings of $2,760/year
Usage Surcharges & Bill Shock Simulator: KairosWhat usage costs as you scale
Detect overage penalties before they impact engineering budget.
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Prototype / MVP (10 GB)

Included base quota in plan: 5 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$1/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$21/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Suitable for development; verify concurrent connection limits.

Base Production (50 GB)

Included base quota in plan: 5 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$8/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$28/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Implement table compression policies and temporal partitioning.

Active Growth (250 GB)

Included base quota in plan: 5 GB.
High Risk / Accelerated Overages
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$44/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$64/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Offload cold backups to standard object storage (S3).

Large Scale (1.000 GB (1 TB))

Included base quota in plan: 5 GB.
Critical Risk / Severe Bill Shock
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$179/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$199/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Migrate to dedicated instance or self-hosted cluster to curtail I/O fees.

Procurement Strategy & Discounts: KairosB2B Negotiation Playbook
Corporate executive level with highest authority to approve budgetary exceptions.
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Fair Market Price & B2B Procurement Benchmark

Non-renewal notice: 60 days before expirationMedian achieved discount: -12%
Public List Price
Custom / Contact
100% baseline
Audited Market Average
-12% median
~88% of list price
Optimized Target Price
-20% target
Max achievable discount (Q4 / multi-year): -20%

Verified Tactical Savings Levers

  • Annual Upfront PrepayUp to -15%

    Consolidated discount for upfront annual billing versus monthly rate.

Security & Data Exit
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Compliance & Security Standards: Kairos

SOC 2 Type IINot reported
ISO 27001Not reported
GDPR / RGPDNot reported
HIPAANot reported
PCI-DSSNot reported
Jurisdiction & Legal Sovereignty
🇺🇸United States [US]Subject to US CLOUD ActGDPR DPA Available
SSO Availability (SAML Enterprise)
No SSO Documented
Data Residency
SELF_HOSTED
AI Privacy Policy
Zero customer data retention
Data Liberation & Migration Runbook: KairosPG_DUMP · JSON · CSV
Actionable escape runbook and credential export guarantees to mitigate vendor lock-in.
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Supported Structured Export Formats
PG_DUMPJSONCSVPARQUET
Password Hash Portability
Exportable Hashes (Bcrypt / Argon2): Zero Forced Retention

Allows extracting password hashes in standard formats to migrate without forcing user resets.

CLI Command / Rescue Endpoint
docker exec -t kairos pg_dump -U postgres > backup.sql
Exit Protocol & Migration Notes

Direct database-level export without proprietary password encryption.

Deployment & Infrastructure Requirements: KairosDocker
Hardware specs and Docker directives to run on local servers, dedicated VPS, or Kubernetes without telemetry leak to the cloud.
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Minimum Memory1 GB RAM (Recommended)
Compute CPU1 vCPU
Runtime / LanguageTypeScript / Go / Rust
Code LicenseOpen Source
Docker CLI Directive
docker run -d --name kairos -p 8080:8080 kairos:latest
Companion Services & Dependencies:
PostgreSQL 15+Redis 7+
Community & Repository
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Technical Reputation of Kairos

76/100 Technical Trust

Frequent Praises in Production

  • Open-source architecture for full auditability of decision logic.
  • High flexibility for integrating custom risk rules into existing workflows.
  • Technically-oriented design with strong support for self-hosted infrastructures.

Reported Production Frictions

  • Steep learning curve requiring technical expertise for initial setup.
  • Technical documentation for enterprise users is less comprehensive compared to proprietary competitors.
Commercial Treatment & Vendor Lock-in:Requires Sales Contact

Assisted cancellation requiring meeting with account team or contract notice period.

Frequently Asked Technical Questions (Kairos)

Can I run Kairos on my own infrastructure?

Yes, Kairos is designed to be self-hosted, allowing organizations to maintain full control over their data and the privacy of their decision-making logic.

What types of risks can the platform detect?

The platform is focused on transactional fraud detection and risk decision management, allowing for custom rules based on user behavior and historical data.

Does Kairos provide an API for integration?

Kairos provides API access that allows for programmatic interaction with the decision engine, facilitating the automation of compliance processes in distributed systems.

Direct Alternatives

All tools in Kairos
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