Developers

Build a verifiable trading workflow.

Use the same calculation contracts through JSON or MCP. No API key required for public calculations.

Calculation API

Requests, responses, units, formulas, limits, and worked examples.

Connect an MCP client

Hosted endpoint and setup instructions for agent integrations.

Trading tools for agents

What the server does, when to use it, and how users verify results.

Public calculators

Explore the existing browser tools and calculation explanations.

Start with one known trade. Compare its expected result with the API response, retain the calculation version, and show the returned assumptions in your interface. Keep missing trade facts and risk preferences explicit.