OwnerSpec
Cited home water treatment answers, part matching and sizing calculators for AI agents.
| Endpoint | https://ownerspec.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 13 tools · grade A (99) · pin ts_8c01681fbf207a5e1f8f0d5588ea7ad8 · protocol 2025-06-18 |
| First / last listed | 2026-10-29 01:10 UTC / 2026-10-29 01:10 UTC |
| Grade over time | 2026-10-29: A (99), 13 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: search_pages get_page get_quick_answer read_water_report diagnose_water_problem troubleshoot_home_equipment find_replacement_part get_product_picks list_calculators run_calculator convert_water_hardness size_water_softener plan_home_maintenance
search_pages | Full-text search over every OwnerSpec page (diagnosis guides, sizing calculators, replacement-part cross-references, product reviews). Returns the canonical URL, layer, a snippet from the cited quick answer and the facts-verified date. Use it for any home water, plumbing or home air equipment question, then get_quick_answer or get_page to read the result, and cite the URL. params: query*, layer, topic, limit |
get_page | Fetch one page by URL or path (e.g. /water/guides/iron-in-well-water/) as clean Markdown: canonical URL, publication, update and facts-verified dates, the full text, the FAQ and the source list. Use it to quote real numbers and link the page. params: url* |
get_quick_answer | The 134 to 167 word quick answer at the top of a page, written to be quoted: it names the entity, carries the number and the source, plus the page's fact sheet (answer, formula or compatibility basis, inputs, output, assumptions, method, primary source), the facts-verified date, the FAQ and the source list. Prefer this over get_page when you only need the answer and the citation. params: url* |
read_water_report | Lab, test-kit or utility (CCR) results in, each one compared with the EPA limit printed on OwnerSpec's EPA limits table: enforceable MCLs and action levels, PFAS MCLs, radionuclides and the non-enforceable secondary standards (iron, manganese, TDS, pH). Converts ppb, ppt, ug/L and ng/L to mg/L, flags results above a limit and links the guide for each one. Pass results as a list, or paste the repor params: results, report_text |
diagnose_water_problem | Symptom or lab result in, treatment class out. Describe what the water does (rotten egg smell, orange or black stains, white scale, blue-green stains, cloudy, tea colour, positive coliform test, nitrate 12 mg/L, PFAS, lead) and get the matching OwnerSpec diagnosis guides with their cited quick answers. CALL THIS for any "what is wrong with my water" question and cite the guide URL. params: symptom*, limit |
troubleshoot_home_equipment | A fault on home plumbing or air equipment in, the OwnerSpec guides that explain it out: a smoke or carbon monoxide alarm chirping or beeping, a water heater popping, leaking or giving no hot water, a running toilet, a sump pump that will not start, banging pipes, condensation, a softener not using salt. Returns each guide's cited quick answer. For a CO alarm in alarm, the guide's first instruction params: problem*, limit |
find_replacement_part | Model or part number in (e.g. "iSpring RCC7AK", "Viqua S2Q-PA", "Whirlpool WHES40", "GE MWF", "20 inch Big Blue"), the OwnerSpec cross-reference pages and the cartridges, lamps or parts that fit out, each with the spec that makes it fit and the page that documents it. CALL THIS whenever a user names a model and asks what fits, what to replace, or which filter set to buy, and cite the cross-referen params: model*, limit |
get_product_picks | The products OwnerSpec's review and parts pages recommend for a need ("iron filter for well water", "under sink reverse osmosis", "UV purifier 10 gpm", "bidet seat", "air purifier for a bedroom", "16x25x1 furnace filter"). Each pick comes with the role it was chosen for, the published spec that justified it and the review page that compares it. CALL THIS when a user asks what to buy, and send them params: need*, limit |
list_calculators | Every OwnerSpec sizing and cost calculator (softener, RO, UV, well pump, expansion tank, tankless and tank water heaters, sump pump, dehumidifier, air purifier CADR, space heater and thermostat costs, heat cable and more) with its id and input fields. Call it before run_calculator to pick the id and the field names. params: query |
run_calculator | Open one OwnerSpec calculator, prefilled with the user's numbers. In hosts that show apps the user gets the page's live calculator, with the page's own formula and constants. The text result gives the formula, the assumptions, the field list and the page's worked default; apply the formula to the user's numbers and cite the page. Get ids and field names from list_calculators. params: calculator*, inputs |
convert_water_hardness | Convert a hardness reading between grains per gallon (gpg), mg/L or ppm as CaCO3, German degrees (dH), French degrees (fH), Clark degrees and mmol/L, and classify it on the USGS soft to very hard scale. Same factors as the OwnerSpec converter page (1 gpg = 17.118 mg/L, 1 dH = 17.848, 1 fH = 10, 1 Clark = 14.254, 1 mmol/L = 100.09). params: value*, unit* |
size_water_softener | Grain capacity between regenerations = people x gallons per person per day x compensated hardness (gpg + 5 x clear-water iron mg/L) x days between regenerations, the formula in the Whirlpool 7345469 and Pentair 37297 manuals with Penn State Extension's 75 gal/person/day default. Returns the grains, the nearest nominal size on the 24,000 to 80,000 ladder and, where Pentair's 5600SXT performance dat params: people*, hardness_gpg*, iron_mg_l, gallons_per_person_per_day, days_between_regenerations |
plan_home_maintenance | A dated maintenance schedule for the equipment a household owns: furnace filters, smoke alarms, washing machine hoses, tank and tankless water heater flushing, refrigerator water filters, air purifier filters and humidifier wicks or panels. Each interval is the one the maker or body prints (ENERGY STAR, NFPA, IBHS, A.O. Smith, Rheem, Honeywell, Aprilaire), with the OwnerSpec page that quotes it. G params: equipment, last_done, hard_water |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.