Agent access and calculator discovery

All 31 calculators are public. No account or registration is required.

Discover a calculator

The JSON catalog lists calculator pages and browser tool names. The API catalog links to the OpenAPI specification. These are read-only discovery endpoints; there is no HTTP calculation endpoint.

Use a browser tool

On the homepage, find_calculators searches the published list. On each calculator page, calculate_<slug_with_underscores> updates the form and returns the result from the same engine as the normal interface. Native WebMCP support is required; otherwise use the visible form.

Read and verify

Read each guide's units, assumptions and limits. Exact fractions and rounded displays are different representations. Financial projections and health or construction estimates should retain their stated qualifications.

Request a page with Accept: text/markdown to read its guide as Markdown when the agent gateway is active. Browsers continue to receive HTML by default.

Useful resources

• Skills index
• Calculator skill
• AI catalog
• ARD manifest
• Public-access instructions
• Catalog status
• Calculation methods and testing

This release has no remote MCP server or protected API. OAuth and MCP server-card endpoints are therefore not advertised.