# Contracts, safety & accessibility

> A network of 6 focused, deterministic tools. Every tool has a human page, a JSON API, an OpenAPI description and an MCP tool that all return the same result (inputs, result, units, assumptions, sources, timestamps).

## Machine interfaces
- Tool catalog (JSON): https://highvalue.usefulweb.site/api/v1/tools
- OpenAPI (all tools): https://highvalue.usefulweb.site/openapi.json
- MCP server (all tools + workflows): https://highvalue.usefulweb.site/mcp
- Pick a tool for a natural-language request: POST https://highvalue.usefulweb.site/api/v1/tools/prompt-to-tool-router/calculate {"request": "..."}

## Tools
- [Accessibility Fixer](https://accessibilityfixer.usefulweb.site/): Turn WCAG 2.2 problems in your HTML into concrete code fixes, grouped by effort. API: POST https://highvalue.usefulweb.site/api/v1/tools/accessibility-fixer/calculate
- [Before You Sign](https://beforeyousign.usefulweb.site/): Spot risky contract clauses (renewal, notice, liability, non-compete…) before you sign. API: POST https://highvalue.usefulweb.site/api/v1/tools/before-you-sign/calculate
- [Digital Estate Organizer](https://digitalestateorganizer.usefulweb.site/): List your online accounts and get a prioritised plan for what happens to them – no passwords needed. API: POST https://highvalue.usefulweb.site/api/v1/tools/digital-estate-organizer/calculate
- [Disaster Prep Builder](https://disasterprepbuilder.usefulweb.site/): Build an emergency supply list for your household from official Ready.gov or BBK guidance. API: POST https://highvalue.usefulweb.site/api/v1/tools/disaster-prep-builder/calculate
- [The Compatibility Engine](https://compatibilityengine.usefulweb.site/): Will this charger, cable, version or PC part work together? Rule-based checks with margins. API: POST https://highvalue.usefulweb.site/api/v1/tools/compatibility-engine/calculate
- [What Changed in This Law?](https://whatchangedinthislaw.usefulweb.site/): Compare two versions of a law or regulation section by section, with changed numbers and deadlines. API: POST https://highvalue.usefulweb.site/api/v1/tools/what-changed-in-this-law/calculate

## Workflows