# Everyday problem-solving

> A network of 9 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://everyday.usefulweb.site/api/v1/tools
- OpenAPI (all tools): https://everyday.usefulweb.site/openapi.json
- MCP server (all tools + workflows): https://everyday.usefulweb.site/mcp
- Pick a tool for a natural-language request: POST https://everyday.usefulweb.site/api/v1/tools/prompt-to-tool-router/calculate {"request": "..."}

## Tools
- [Cancellation Navigator](https://cancellationnavigator.usefulweb.site/): Verified steps to cancel Netflix, Spotify, Prime & more, plus a cancellation letter. API: POST https://everyday.usefulweb.site/api/v1/tools/cancellation-navigator/calculate
- [Deadline Decoder](https://deadlinedecoder.usefulweb.site/): Find every deadline, required action and consequence in a letter or notice. API: POST https://everyday.usefulweb.site/api/v1/tools/deadline-decoder/calculate
- [Decision Simulator](https://decisionsimulator.usefulweb.site/): Compare 2–6 choices by expected value, worst case, best case and minimax regret. API: POST https://everyday.usefulweb.site/api/v1/tools/decision-simulator/calculate
- [Form Translator](https://formtranslator.usefulweb.site/): Plain-language help for confusing forms: field-by-field hints and jargon explained. API: POST https://everyday.usefulweb.site/api/v1/tools/form-translator/calculate
- [How Long Will It Last?](https://howlongwillitlast.usefulweb.site/): Estimate remaining life of appliances and home components and plan the replacement. API: POST https://everyday.usefulweb.site/api/v1/tools/how-long-will-it-last/calculate
- [Is It Worth It?](https://isitworthit.usefulweb.site/): Buy, rent, repair or subscribe? Compare total cost and NPV over the years you need it. API: POST https://everyday.usefulweb.site/api/v1/tools/is-it-worth-it/calculate
- [Life Admin Generator](https://lifeadmingenerator.usefulweb.site/): A dated to-do list for moving, marriage, a baby, a new job and other life events. API: POST https://everyday.usefulweb.site/api/v1/tools/life-admin-generator/calculate
- [Repair or Replace](https://repairorreplace.usefulweb.site/): Fix it or buy new? The 50% rule plus a cost-per-year check, with a clear verdict. API: POST https://everyday.usefulweb.site/api/v1/tools/repair-or-replace/calculate
- [True Cost Calculator](https://truecostcalculator.usefulweb.site/): What a car, pet, appliance, home or gadget really costs per year, month and day. API: POST https://everyday.usefulweb.site/api/v1/tools/true-cost-calculator/calculate

## Workflows