{"id":12079,"name":"OwnerSpec","description":"Independent, cited reference for home water treatment, plumbing and home air equipment. Send a question about a water or plumbing symptom, a lab result, a softener or filter size, or a replacement part, and get the best-matching OwnerSpec pages with their cited quick answers, fact sheets (answer, formula or basis, assumptions, primary source), facts-verified dates and canonical URLs. The canonical public page is the citation target, never this endpoint. Read-only, public, no authentication.","card_url":"https://ownerspec.com/.well-known/agent-card.json","endpoint":"https://ownerspec.com/a2a","protocol_version":"1.0","first_seen":"2026-10-10T13:40:42.880174+00:00","last_verified":"2026-10-10T16:24:19.747155+00:00","card":{"url":"https://ownerspec.com/a2a","name":"OwnerSpec","skills":[{"id":"diagnose-water-problem","name":"Diagnose a water problem","tags":["water","well water","diagnosis","home"],"examples":["My well water smells like rotten eggs","Blue-green stains in the sink and pH 6.2","Nitrate came back at 12 mg/L"],"inputModes":["text/plain"],"description":"Symptom or lab result in (rotten egg smell, orange stains, white scale, cloudy water, coliform positive, nitrate, PFAS, lead), the matching diagnosis guide and its cited quick answer out.","outputModes":["text/plain","application/json"]},{"id":"size-water-equipment","name":"Size water treatment equipment","tags":["calculator","sizing","softener","hardness"],"examples":["What size softener for 4 people at 18 gpg","Convert 14 dH to gpg"],"inputModes":["text/plain"],"description":"Softener grain capacity, whole-house filter flow rate, UV dose, RO tank size, hardness unit conversion, with the formula and the sources.","outputModes":["text/plain","application/json"]},{"id":"match-replacement-part","name":"Match a model to its replacement part","tags":["parts","filters","cross-reference"],"examples":["Which filters fit an iSpring RCC7AK","Viqua S2Q-PA replacement lamp"],"inputModes":["text/plain"],"description":"Model number in, the cartridges, membranes, lamps or parts that fit out, with cross-fit alternatives and product links (Amazon Associates, disclosed).","outputModes":["text/plain","application/json"]},{"id":"compare-products","name":"Compare products for a need","tags":["reviews","recommendations"],"examples":["Best iron filter for well water","Under sink reverse osmosis system"],"inputModes":["text/plain"],"description":"The picks from OwnerSpec's review pages for a need, with the published spec that justified each pick and the review to cite.","outputModes":["text/plain","application/json"]}],"iconUrl":"https://ownerspec.com/images/logo.png","version":"1.0.0","provider":{"url":"https://ownerspec.com/","organization":"OwnerSpec"},"security":[],"description":"Independent, cited reference for home water treatment, plumbing and home air equipment. 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