AI Developer Tools

Kage

Kage is a git-native verification layer for coding agent memory that checks every claim against your code to prevent hallucinations and stale facts.

What is Kage?

Kage is an open-source tool that provides verified memory for AI coding agents. It stores agent memories as plain Markdown files in your git repository and continuously verifies each memory against the actual codebase. Memories with hallucinated citations or stale references are rejected on write or withheld from recall, ensuring agents act only on trustworthy information.

Kage vs Similar AI Tools

Pricing ModelFreeFreeCustom PricingFree, Paid
Free Credits
Key Features
  • Automatic capture of agent memories as plain Markdown files in git
  • Hallucinated citation rejection at write time
  • Stale memory withholding at recall
  • GitHub Pages hosting
  • Jekyll integration
  • Markdown content support
  • Workload monitoring and anomaly detection
  • Slow query identification and optimization
  • Natural language querying to SQL translation
  • Scans skills and MCP servers against ATR rules before loading
  • Real-time runtime protection against prompt injection and hijacks
  • Signed audit-ready evidence for compliance (EU AI Act, NYDFS, DORA)
Pros
  • Zero-config install, runs locally
  • No account or API key needed
  • Free hosting with custom domain support
  • Easy setup via Git
  • Quick one-line installation and setup in 15 minutes
  • Self-hosted ensures data stays within your infrastructure
  • Open source with MIT license
  • Real-time detection and prevention
Cons
  • Cloud version still in early access
  • Currently focused on MCP-compatible agents
  • Limited to static content
  • No server-side processing
  • Requires self-hosting and VPC setup
  • No free tier or trial mentioned
  • Enterprise features require paid tiers
  • Setup may require technical expertise
Best For
  • Developers using AI coding assistants (Claude Code, Codex, Cursor, etc.)
  • Teams that want verified, up-to-date memory for agents
  • Developers
  • Open source projects
  • Database administrators
  • Data engineers
  • Developers building and deploying AI agents
  • Enterprises needing audit-ready AI security

How to use Kage?

  1. 1Install Kage with a single command: npx -y @kage-core/kage-graph-mcp install
  2. 2It automatically builds a code graph and wires into your agents (Claude Code, Codex, etc.)
  3. 3Memories are captured automatically and verified against your code before being written
  4. 4Recall: verified memories are injected into agent prompts when relevant
  5. 5Before merging a PR, run 'kage pr check' to flag any changes that invalidate team memories

Kage Key Features

  • Automatic capture of agent memories as plain Markdown files in git
  • Hallucinated citation rejection at write time
  • Stale memory withholding at recall
  • Diff-time stale-catch before PRs merge (kage pr check)
  • Savings receipts showing tokens and cost saved per recall
  • Cross-machine sync via your own git remote
  • Trust benchmark (score 99/100) runnable on your own repo
  • Zero-config install, no account or API key required

Kage Use Cases

  • Prevent AI coding agents from acting on outdated or hallucinated facts
  • Ensure team memory stays in sync with evolving codebases
  • Review pull requests for conflicts with previously captured knowledge
  • Build trustworthy long-term memory for agent workflows

Kage Pricing & Free Credits

Kage currently operates on a Free model.

Free Tier

Open Source

$0

Complete verification layer, auto-capture, receipts, sync over your own git remote. No account, no API key.

Kage Cloud

$0 (early access)

Memory follows you across machines via a private MCP link. Verification stays client-side. Waitlist open.

Paid Plans

Team

Coming soon

Shared team memory with review gates. PR-reviewed trust model, hosted. Early design partners welcome.

Open Source

$0

Complete verification layer, auto-capture, receipts, sync over your own git remote. No account, no API key.

Kage Cloud

$0 (early access)

Memory follows you across machines via a private MCP link. Verification stays client-side. Waitlist open.

Team

Coming soon

Shared team memory with review gates. PR-reviewed trust model, hosted. Early design partners welcome.

Kage Pros & Cons

Pros

  • Zero-config install, runs locally
  • No account or API key needed
  • Rejects hallucinated citations on write
  • Withholds stale memories at recall
  • Git-native: memories reviewed in the same PR as code
  • Open source and free forever

Cons

  • Cloud version still in early access
  • Currently focused on MCP-compatible agents
  • Team plan not yet available

What is Kage best for?

  • Developers using AI coding assistants (Claude Code, Codex, Cursor, etc.)
  • Teams that want verified, up-to-date memory for agents
  • Open source projects seeking transparent, reviewable agent memory

Kage FAQ

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