{"$schema":"https://verifymcp.io/schemas/trust-report.json","schemaVersion":1,"license":{"name":"CC BY-NC 4.0","url":"https://creativecommons.org/licenses/by-nc/4.0/"},"generatedAt":"2026-11-05T16:29:46.836Z","url":"https://verifymcp.io/servers/com-a1syntheticoil-a1-synthetic-oil/a1syntheticoil","markdownUrl":"https://verifymcp.io/servers/com-a1syntheticoil-a1-synthetic-oil/a1syntheticoil.md","server":{"slug":"com-a1syntheticoil-a1-synthetic-oil","name":"A1 Synthetic Oil (independent AMSOIL dealer)","registryName":"com.a1syntheticoil/a1-synthetic-oil","description":"AMSOIL catalog search, account options, and dealer-referral shopping links from A1 Synthetic Oil","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"a1syntheticoil","type":"remote","identifier":"https://a1syntheticoil.com/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/com-a1syntheticoil-a1-synthetic-oil/a1syntheticoil","version":"1.0.0","transport":null,"scoredAt":"2026-11-05T08:26:22.838Z"},"score":{"total":80,"tier":"high trust","status":"scored","weekDelta":3,"history":[{"date":"2026-11-05","total":80},{"date":"2026-11-04","total":80},{"date":"2026-11-03","total":79},{"date":"2026-11-02","total":79},{"date":"2026-11-01","total":78},{"date":"2026-10-31","total":78},{"date":"2026-10-30","total":77},{"date":"2026-10-29","total":77},{"date":"2026-10-28","total":77},{"date":"2026-10-27","total":76},{"date":"2026-10-26","total":76},{"date":"2026-10-25","total":75},{"date":"2026-10-24","total":75},{"date":"2026-10-23","total":74},{"date":"2026-10-22","total":74},{"date":"2026-10-21","total":73},{"date":"2026-10-20","total":73},{"date":"2026-10-19","total":72},{"date":"2026-10-18","total":72},{"date":"2026-10-17","total":72}]},"categories":[{"name":"Endpoint Security","score":80,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.","HTTPS is enforced; there's no plaintext access path.","The HSTS (Strict-Transport-Security) header is present.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.none_no_destructive","args":{}},{"code":"https.enforced","args":{}},{"code":"headers.hsts_present","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":100,"verdict":"pass","reasons":["Verified streamable-http transport via a live MCP handshake."],"codes":[{"code":"transport.verified","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":64,"verdict":"fail","reasons":["AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 1436 tokens (~179/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_heavy","args":{"avg":"179","items":"8","tools":"8","tokens":"1436","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":63,"verdict":"partial","reasons":["Stability observed for 19 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"19"}}]},{"name":"Tool Coverage","score":98,"verdict":"partial","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","94% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"94"}}]},{"name":"Tool Safety","score":100,"verdict":"pass","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it."],"codes":[{"code":"toolsafety.injection_clean","args":{}},{"code":"toolsafety.destructive_none","args":{"tools":"8"}},{"code":"toolsafety.manipulation_clean","args":{"units":"9","judged":"9"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28."],"codes":[{"code":"protocol.supported","args":{"latest":"2026-07-28","version":"2025-11-25"}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"a1syntheticoil","type":"remote","identifier":"https://a1syntheticoil.com/mcp","withdrawn":false,"score":80,"current":true,"url":"https://verifymcp.io/servers/com-a1syntheticoil-a1-synthetic-oil/a1syntheticoil","markdownUrl":"https://verifymcp.io/servers/com-a1syntheticoil-a1-synthetic-oil/a1syntheticoil.md"}],"facts":[{"label":"Endpoint","value":"https://a1syntheticoil.com/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"search_products","title":"Search AMSOIL products","description":"Search the AMSOIL catalog by product name, product code, viscosity grade (for example 5W-30), product type, or category, with the same ranking and typo tolerance as the a1syntheticoil.com catalog search. 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Does not return prices or stock.","inputs":[{"name":"category","type":"string","required":false,"description":"Optional category name from list_categories, for example \"Diesel oil\"."},{"name":"country","type":"string","required":false,"description":"Storefront country: US (amsoil.com) or CA (amsoil.ca)."},{"name":"limit","type":"integer","required":false,"description":null},{"name":"query","type":"string","required":true,"description":"What to look for, for example \"0W-20 motor oil\", \"diesel 15W-40\", \"ATF\", or \"EA15K13\"."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":189},{"name":"get_product","title":"Get product details","description":"Full A1 guidance for one product: description, fitment notes, a common question, the U.S. and Canadian product codes, and the AMSOIL shopping link with dealer referral zo=30734402.","inputs":[{"name":"code","type":"string","required":true,"description":"U.S. or Canadian product code, for example ASLQT-EA or ASLQTC-EA."},{"name":"country","type":"string","required":false,"description":"Storefront country: US (amsoil.com) or CA (amsoil.ca)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":103},{"name":"list_categories","title":"List product categories","description":"Every product category with its product count and A1 catalog page.","inputs":[],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":21},{"name":"account_options","title":"Explain AMSOIL account types","description":"Who each AMSOIL account type is for, how it differs from the others, and the enrollment link with dealer referral zo=30734402: shopping without an account, Preferred Customer membership, commercial, retail, installer, and independent dealer. 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