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KATATAN
Katatan Logo

AI writes.
Humans review.
Quality governance for
AI-driven development.

Katatan is a quality governance platform where AI agents and QA engineers share the same test assets. With native Model Context Protocol (MCP) support, AI tools like Claude and Kiro can read and write test cases directly, while humans maintain oversight.

> Start at Free> Watch DemoComing Soon

The Interface

HUMAN READABLE
AI WRITABLE

Test cases stay in a format humans can read, review, and approve — while AI agents write and update them autonomously via MCP.

Katatan test reports list view
Katatan test report detail view
How it works

One iteration.
Three phases.

Hover any phase to expand its detail.

01

PLAN

App explored
02

IMPLEMENT

Tests generated
03

TEST

Runs & heals
Hover a phase to expand
Features
AI-Powered Test Automation

AI-Powered Test Automation

With native MCP support, Claude, Kiro, and other AI agents can operate test cases directly. AI handles test creation, updates, and search autonomously.

CreateUpdateListSearchExecute
Structured Test Case Management

Structured Test Case Management

Test cases are stored as structured data. Each field is managed distinctly — equally readable by AI and humans.

TitleDescriptionStepsPreconditionsTags
Team Collaboration

Team Collaboration

Centralize AI-generated test specifications and reports as shared team assets. Organize work with workspaces and projects, and manage team members with Owner, Editor, and Viewer roles.

InvitationRole ManagementAudit Logs
Webhooks & Integrations

Webhooks & Integrations

Send webhook notifications to external services on test run events. Plug into your existing CI/CD pipelines and Slack.

CI/CDSlackWebhooks
Built for Resilient Operations

Built for Resilient Operations

Assign multiple Owners to a workspace so handoffs and role transitions stay seamless. MCP tokens belong to the workspace—not to any individual—so your system never depends on a single person's account.

Multiple OwnersWorkspace-scoped TokensSmooth Handoffs
Dictionary-Powered Spec Maintenance

Dictionary-Powered Spec Maintenance

Register URLs, object names, and other recurring terms as dictionary entries. When they change, a single edit to the entry keeps every test case current — no complex queries needed to repair specs in bulk.

URL RegistrationObject Name BindingSingle-Edit Updates
Vulnerability Check

Vulnerability Check

Automatically run 14 security checks — SSL/TLS, cookies, CORS, security headers, and more — against the URLs registered under your project. Findings are reported by severity with bilingual (Japanese/English) reasons and remediation guidance, and are also accessible to AI agents via MCP tools.

14 Automated ChecksSeverity-Ranked ReportsMarkdown/CSV Export
Pricing

Simple pricing.

Billed per workspace, not per user.

Free
Free
1 member
For individuals & evaluation. Feature and quota limits apply.
  • Up to 10 test specs
  • Up to 100 test cases
  • MCP Tools
  • E2E test plan / generate / run / heal
  • Spec & report sharing
Get started
Personal
$5/ mo
1 member
For solo or small teams. Core features with no limits.
  • Unlimited test specs & cases
  • MFA login
  • MCP Token Rotation
  • Webhook integration
  • Audit logs (30 days)
Get started
Team
$30/ mo
10 members
For groups. Invite up to 10 members.
  • Member invites (up to 10)
  • 10,000 API calls / hr
  • Unlimited test specs & cases
  • Webhook integration
  • Audit logs (30 days)
Get started
Team Plus
$300/ mo
Unlimited members
Unlimited invites & advanced security options.
  • Unlimited member invites
  • IP restriction / advanced security
  • 150,000 API calls / hr
  • Audit logs 2 years + export
  • All features included
Get started
Plan Comparison
FeatureFreePersonalTeamTeam Plus
Quota
Test SpecificationsUp to 10UnlimitedUnlimitedUnlimited
Test CasesUp to 100UnlimitedUnlimitedUnlimited
Test ReportsUp to 10UnlimitedUnlimitedUnlimited
ProjectsUp to 3UnlimitedUnlimitedUnlimited
WorkspacesUnlimitedUnlimitedUnlimitedUnlimited
User Invitation——Up to 10Unlimited
Security
MFA Login
IP Access Restriction———
MCP / Automation
MCP Tools
MCP Token Rotation—
E2E Test Planning
E2E Test Code Generation
E2E Test Execution
E2E Test Self-Healing
Integrations
Webhook—
Spec Sharing & Export
Report Sharing & Export
Audit
Audit Logs—30 days30 days2 years
Audit Log Export———
MCP Tool Rate Limits
FeatureFreePersonalTeamTeam Plus
API Calls500 / hr5,000 / hr50,000 / hr300,000 / hr
API Calls (Burst)60 / min200 / min2,000 / min10,000 / min
Audit Log Export———100 / day
FAQ
BLOG
Introducing the Vulnerability Check Feature for Web Applications

Introducing the Vulnerability Check Feature for Web Applications

As high-performance AI models become mainstream, the same capabilities that boost developer productivity can just as easily arm attackers. KATATAN's new Vulnerability Check feature lets you casually check your product's security health — free to try today.

releasesecurityvulnerability-checkAI-driven development
Read more →
Why Excel Doesn't Work for Test Management in AI-Driven Development

Why Excel Doesn't Work for Test Management in AI-Driven Development

Why test management breaks down in AI-driven development, and the three baselines Katatan proposes for choosing a better approach.

conceptbest-practicetesting
Read more →
Semantic Coding Theory: Maximizing Code Quality in AI-Driven Development

Semantic Coding Theory: Maximizing Code Quality in AI-Driven Development

Semantic Coding Theory is a design philosophy for the AI-driven development era — embedding meaning into code structure, naming, types, and tests rather than documentation. Learn how to build a codebase that AI agents can explore, understand, and change with minimal friction.

conceptbest-practiceai-agent
Read more →