Local-first by design
CostHawk was built for developers who care about transparency. You can see exactly what we read and exactly what we send before anything is uploaded.
Enable auto-sync
One command installs the MCP and configures Claude + Codex auto-sync.
npm exec --yes costhawk@latest -- --setup
Local-first parsing
We compute usage locally from ~/.claude/projects and ~/.codex/sessions before anything leaves your machine.
No prompt content
Only usage metadata is sent: token counts, models, timestamps, and hashed project IDs — never your code or prompts.
Preview before upload
Dry-run syncs show exactly what would be sent, with payload previews and optional file lists for full transparency.
Opt-in auto-sync
Automatic uploads are off by default. Enable with COSTHAWK_AUTO_SYNC=true and disable Codex sync anytime.
Top Claude Code + Codex Operators
See who's pushing the limits. Track Claude Code + Codex usage and compete with developers worldwide.
Sync your Claude Code + Codex sessions to join the rankings
Your Command Center for API Costs
Track spending across all your LLM providers in one unified dashboard
Cost Overview
Last 30 days
Everything you need to control your API costs
Built for developers who want visibility into their LLM spending without the guesswork.
Real-Time Cost Tracking
Monitor your spend on OpenAI, Anthropic, Google, and xAI as it happens, not after the invoice arrives.
Wrapped API Keys
Proxy your API calls through CostHawk to track costs without exposing your real keys to your codebase.
Per-User Analytics
Break down costs by user, project, and API key to understand exactly where your budget is going.
Budget Alerts
Set spending thresholds and get notified via email or webhook when costs approach your limits.
Multi-Provider Support
Native support for OpenAI, Anthropic Claude, Google Gemini, and xAI Grok — all in one dashboard.
Data Export
Export your usage data as CSV or JSON for reporting, invoicing, or further analysis.
MCP Server Integration
Connect CostHawk to Claude Desktop or other MCP clients for seamless cost tracking in your workflow.
Budget & Rate Limits
Set hard budgets and rate limits to prevent runaway costs before they happen.
Developer API
Access your cost data programmatically with our REST API and developer access tokens.
Project Organization
Organize your API keys and costs by project to keep dev, staging, and production separate.
Team Management
Invite your team and manage access with organization-based permissions via Clerk.
Webhook Integrations
Push cost events to Slack, Teams, PagerDuty, or your own systems in real-time.
Get Started Today
CostHawk is 100% free. No trials, no credit cards, no limits. Start tracking your AI costs in under 2 minutes.
Shape the Product
Your feedback directly influences our roadmap. Request features and report issues directly in the app.
100% Free Forever
No trials, no credit cards, no hidden limits. Full access to every feature, completely free.
Priority Support
Direct access to the founding team. We respond to issues in hours, not days.
Developer-First
Built by developers, for developers. Clean API, detailed docs, and MCP integration.
Free for Everyone
No trials. No credit card. No limits. Just sign up and start tracking.
CostHawk
Everything you need to track your Claude + Codex usage
We believe everyone should have access to usage tracking tools