Stop overpaying for
AI Inference
Your AI bill is 10x higher than it should be. Most tasks like formatting, refactoring, and simple fixes don't need Claude Opus – but you're paying premium prices. Felix automatically routes 60% of your work to free models.
Supported Providers
Engineered for Efficiency
A drop-in optimization layer for your AI workflow.
Intelligent Routing
Felix analyzes task complexity from your PRD and automatically selects the optimal tier: 60% Free (Llama, DeepSeek), 25% Cheap (Haiku, Flash), 10% Mid (Sonnet, Pro), 5% Premium (Opus, O1).
Universal API
One standard interface for OpenAI, Anthropic, and Google. Zero vendor lock-in.
Cascade Fallback
Fail-safe reliability. Model failure triggers instant retry on next tier.
SQLite-Based History Learning
Felix tracks every routing decision in a local SQLite database: success rates, latency, and task patterns. Routes similar tasks to models that performed well historically. Accuracy improves from 80% initially to 95%+ after 100 tasks.
Quick Start
Three simple steps to start saving on AI costs
Install
npm i -g @anatolykoptev/krolik-cli
Configure
Add API keys for your preferred models (Anthropic, Google, Groq, etc.)
Run & Monitor
Execute tasks with krolik felix start and track routing stats with krolik felix stats
Integrations
Works seamlessly with your existing tools and workflows
Claude Code
Native MCP integration for seamless AI-assisted development
claude mcp add krolik
CI/CD Pipelines
GitHub Actions, GitLab CI, Jenkins integration out of the box
krolik felix start
IDE Support
VS Code, JetBrains IDEs via MCP protocol integration
MCP CompatibleUniversal CLI
Works in any terminal: Bash, Zsh, Fish, PowerShell
Cross-platformMore integrations coming soon. Request a feature →
Simple to Use
Get started with Krolik Felix in seconds.
{
"name": "Add user authentication",
"tasks": [
{
"id": "create-user-model",
"description": "Create Prisma User model",
"complexity": "low"
},
{
"id": "implement-jwt-auth",
"description": "JWT authentication logic",
"complexity": "high"
}
]
}➜ krolik felix start --prd PRD.json
Felix Commands
krolik felix start
Execute tasks from PRD
krolik felix plan
Get routing dry-run
krolik felix stats
View routing statistics
krolik felix estimate
Calculate cost projection
Developer Tools
krolik context
Project context in seconds
krolik mem save
Persistent AI memory
krolik audit
Find quality issues
krolik fix
Auto-fix code issues
Real-World Savings
Stop burning money on over-provisioned models. 100 tasks comparison.
Standard Way
Everything on Claude Opus
With Krolik
Intelligent Routing
Built for Every Development Team
From solo developers to enterprises, Felix adapts to your scale and budget
Solo Developers
Ship side projects faster without breaking the bank. Felix routes 60%+ of tasks to free models.
- $5-15/month typical AI cost
- Perfect for MVPs and prototypes
- CLI integration with your workflow
Startups
Scale efficiently with intelligent routing. Reduce burn rate while maintaining development velocity.
- Save $500-2,000/month per developer
- Team collaboration with shared memory
- Scales from 2-20+ developers
Enterprises
Cost governance at scale. Control AI spend across hundreds of developers with transparent routing.
- $10K-50K+/month typical savings
- Audit logs and cost attribution
- Self-hosted deployment option
🐰 Felix learns your team's patterns over time, improving cost savings with every task
Trusted by Developers Worldwide
Join teams saving thousands on AI costs
Open Source & Free
Apache 2.0 / FSL-1.1. You only pay for the API tokens you use.
Common Questions
Everything you need to know about Krolik Felix
Still have questions?
Ask on GitHub DiscussionsReady to optimize?
Join developers saving 90% on AI API costs. Open source, TypeScript-native, and production ready.