# CoinMargin

Five fee-aware crypto trade calculators for humans and agents. The browser calculator is free. Each API calculation costs $0.001 USDC on Base through x402 v2, with no account or API key.

## Agent resources
- API catalog: https://coinmargin-lab.ak10082247.workers.dev/api
- OpenAPI 3.1 contract: https://coinmargin-lab.ak10082247.workers.dev/openapi.json
- Agent usage guide: https://coinmargin-lab.ak10082247.workers.dev/SKILL.md
- Marketplace profile: https://payanagent.com/agents/j570p15f0dvyzt2w129s2qgn698bg8zd

## Paid tools
- Tiny-trade viability: https://coinmargin-lab.ak10082247.workers.dev/api/tiny-trade
- Break-even and target exit: https://coinmargin-lab.ak10082247.workers.dev/api/break-even
- Fee-aware DCA average: https://coinmargin-lab.ak10082247.workers.dev/api/dca-average
- Risk-based position size: https://coinmargin-lab.ak10082247.workers.dev/api/position-size
- Fee-aware risk/reward: https://coinmargin-lab.ak10082247.workers.dev/api/risk-reward

All outputs are deterministic maths, not live market data or financial advice.