{"$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":"2026-11-05T20:53:49.521Z","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp","markdownUrl":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp.md","server":{"slug":"com-oper-stack-operstack","name":"OperStack","registryName":"com.oper-stack/operstack","description":"Scores whether AI assistants can read, understand and quote a public website. No account.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"api-mcp","type":"remote","identifier":"https://oper-stack.com/api/mcp/","withdrawn":false,"url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp","version":"1.2.0","transport":null,"scoredAt":"2026-11-05T03:05:36.121Z"},"score":{"total":85,"tier":"high trust","status":"scored","weekDelta":3,"history":[{"date":"2026-11-05","total":85},{"date":"2026-11-04","total":85},{"date":"2026-11-03","total":84},{"date":"2026-11-02","total":84},{"date":"2026-11-01","total":84},{"date":"2026-10-31","total":83},{"date":"2026-10-30","total":83},{"date":"2026-10-29","total":82},{"date":"2026-10-28","total":82},{"date":"2026-10-27","total":81},{"date":"2026-10-26","total":81},{"date":"2026-10-25","total":80},{"date":"2026-10-24","total":80},{"date":"2026-10-23","total":79},{"date":"2026-10-22","total":79},{"date":"2026-10-21","total":78},{"date":"2026-10-20","total":78},{"date":"2026-10-19","total":77},{"date":"2026-10-18","total":77},{"date":"2026-10-17","total":77},{"date":"2026-10-16","total":76},{"date":"2026-10-15","total":76},{"date":"2026-10-14","total":75},{"date":"2026-10-13","total":75},{"date":"2026-10-12","total":74},{"date":"2026-10-10","total":73},{"date":"2026-10-09","total":73}]},"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":80,"verdict":"fail","reasons":["AI-judged instruction clarity (excellent).","Tool/resource definitions use about 1193 tokens (~108/item across 11 items; 11 tools + 0 resources), lean.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"excellent"}},{"code":"schema.footprint_lean","args":{"avg":"108","items":"11","tools":"11","tokens":"1193","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":90,"verdict":"partial","reasons":["Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"27"}}]},{"name":"Tool Coverage","score":100,"verdict":"pass","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","100% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"100"}}]},{"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 11 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 12 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":"11"}},{"code":"toolsafety.manipulation_clean","args":{"units":"12","judged":"12"}}]},{"name":"Capabilities","score":60,"verdict":"fail","reasons":["Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28."],"codes":[{"code":"protocol.outdated","args":{"latest":"2026-07-28","version":"2025-06-18"}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"api-mcp","type":"remote","identifier":"https://oper-stack.com/api/mcp/","withdrawn":false,"score":85,"current":true,"url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp","markdownUrl":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp.md"}],"facts":[{"label":"Endpoint","value":"https://oper-stack.com/api/mcp/"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.2.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"audit_site","title":"Score a site for AI visibility","description":"Scores any public site out of 100 on the five things an answer engine needs before it will quote a page: whether AI crawlers are allowed in, whether there is a map for agents (llms.txt), whether the entity is clear from schema, whether there is anything quotable, and whether pages carry dates and sources. Use it when someone asks whether ChatGPT or another assistant can read and quote a site. Reads up to 10 public pages. A site that turns away automated readers cannot be scored.","inputs":[{"name":"lang","type":"string","required":false,"description":"Language of the findings. Default en. Use ru when the site or the person is Russian."},{"name":"url","type":"string","required":true,"description":"A public site address, for example example.com"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":152},{"name":"compare_sites","title":"Compare sites on the same scale","description":"Runs the same AI-visibility scoring on two to four sites and returns them side by side, so a score means something. Use it to see where a site is losing answers to a rival, area by area. A site that turns away automated readers is reported as unreadable.","inputs":[{"name":"lang","type":"string","required":false,"description":"Language of the findings. Default en."},{"name":"urls","type":"array","required":true,"description":"Two to four public site addresses"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":91},{"name":"check_llms_txt","title":"Check the map a site offers to machines","description":"Reads a site llms.txt, the file that tells an assistant which pages matter, and follows its links to see whether they still lead anywhere. Use it when someone asks about llms.txt or whether their map for AI assistants works.","inputs":[{"name":"url","type":"string","required":true,"description":"A public site address"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":68},{"name":"ai_visits","title":"Read your own AI visit counter","description":"Reports how many visits each AI assistant sent to a site that runs the free OperStack counter. Needs the private token from the counter link, which only the site owner has. Returns visit counts per assistant, not individual visitors.","inputs":[{"name":"days","type":"number","required":false,"description":"How many days back to report. Default 90."},{"name":"token","type":"string","required":true,"description":"The private token from your counter link (the part after t=)"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":91},{"name":"check_counter_installed","title":"Is the visit counter actually on the site","description":"Looks at a site page and says whether the OperStack visit counter line is really there, including the case where it is there carrying a different key. Use it when a counter reports nothing and the owner does not know why.","inputs":[{"name":"domain","type":"string","required":true,"description":"The site to look at"},{"name":"key","type":"string","required":true,"description":"The site key from the snippet, starting osv_"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":83},{"name":"my_visibility","title":"Does ChatGPT name us this week (Watch)","description":"OperStack Watch subscribers, with their key. Whether ChatGPT (and Perplexity, when it answered) named the subscriber in answers to their 10 buyer questions at the last weekly check, the trend week by week, and the share of answers against the competitors named. The same numbers as that week's Watch email.","inputs":[{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":95},{"name":"who_instead","title":"Who ChatGPT names instead of us (Watch)","description":"OperStack Watch subscribers, with their key. For each of the 10 buyer questions at the last weekly check: whether ChatGPT (and Perplexity) named the subscriber, and which businesses they named instead. Then the sites these answers were built from and where to get mentioned.","inputs":[{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":89},{"name":"fix_of_the_week","title":"This week's fix, ready to paste (Watch)","description":"OperStack Watch subscribers, with their key. The fix of the week from the last Watch email: the buyer question it answers, who ChatGPT named instead, what to change, and the text to put on the site, word for word as in the email.","inputs":[{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":86},{"name":"what_changed","title":"What changed since last week (Watch)","description":"OperStack Watch subscribers, with their key. What moved between the last two weekly checks: how many answers named the subscriber in ChatGPT and Perplexity, the share of answers against each competitor, and the buyer questions where they were named or dropped.","inputs":[{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":82},{"name":"check_rival","title":"Score a competitor by the same rules (Watch)","description":"OperStack Watch subscribers, with their key. Scores a competitor site out of 100 on the same rules as the OperStack free check and the Watch email, and puts it next to the subscriber's own score from the last weekly check.","inputs":[{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."},{"name":"url","type":"string","required":true,"description":"The competitor site, for example rival.com"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":95},{"name":"my_questions","title":"See or change our 10 buyer questions (Watch)","description":"OperStack Watch subscribers, with their key. Shows the 10 buyer questions Watch asks ChatGPT and Perplexity every week. Can also replace one question (number and new text) or all ten. Only change questions when the person asked for it. Changes apply from the next weekly check, and history starts again for a changed question.","inputs":[{"name":"number","type":"number","required":false,"description":"To replace one question: its number, 1 to 10."},{"name":"question","type":"string","required":false,"description":"To replace one question: the new question, at least 5 words."},{"name":"questions","type":"array","required":false,"description":"To replace all ten: exactly 10 different questions."},{"name":"site","type":"string","required":false,"description":"Only if you watch more than one site: which one, for example example.com."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":157}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T03:05:36.000Z","track":"remote","endpoint":"https://oper-stack.com/api/mcp/","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 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84)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-01","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a1952a-f6ae-70d9-be4f-50d4328824d5"},{"id":"chg_01a18adb-a612-7006-88ba-655fdf74fd54","kind":"score.total_changed","summary":"Trust score (82 → 83)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a18adb-a612-7006-88ba-655fdf74fd54"},{"id":"chg_01a18091-ff70-74a1-8ec0-e8f175924ce7","kind":"score.total_changed","summary":"Trust score (81 → 82)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-28","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a18091-ff70-74a1-8ec0-e8f175924ce7"},{"id":"chg_01a17643-f12e-7599-b2ca-b5871406140b","kind":"score.total_changed","summary":"Trust score (80 → 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78)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-20","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a1575c-0c5b-7cfe-bf1d-ccc7a5920ac4"},{"id":"chg_01a147e3-2ad4-7e9f-a148-3c7961c5c5f2","kind":"score.total_changed","summary":"Trust score (76 → 77)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-17","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a147e3-2ad4-7e9f-a148-3c7961c5c5f2"},{"id":"chg_01a13d9a-2e0e-7740-89eb-2d201458b6f4","kind":"score.total_changed","summary":"Trust score (75 → 76)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-15","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a13d9a-2e0e-7740-89eb-2d201458b6f4"},{"id":"chg_01a13348-6c6c-7670-bae3-4b8caa12ec57","kind":"score.total_changed","summary":"Trust score (74 → 75)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-13","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a13348-6c6c-7670-bae3-4b8caa12ec57"},{"id":"chg_01a12dc3-a014-700e-b124-d3bb9422e46b","kind":"score.total_changed","summary":"Trust score (73 → 74)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-12","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a12dc3-a014-700e-b124-d3bb9422e46b"},{"id":"chg_01a1265d-d3dd-7714-8517-2fe6448a1dbd","kind":"check.reverified","summary":"Stability (unverified → 0.03)","materiality":"functional","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-10","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a1265d-d3dd-7714-8517-2fe6448a1dbd"},{"id":"chg_01a12154-c70e-77c3-be6d-3a0213adb3a7","kind":"score.first_scored","summary":"First indexed and scored","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-09","url":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp#chg-chg_01a12154-c70e-77c3-be6d-3a0213adb3a7"}],"truncated":false,"feedUrl":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp/changelog.json"},"links":{"html":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp","markdown":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp.md","changelogJson":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp/changelog.json","changelogRss":"https://verifymcp.io/servers/com-oper-stack-operstack/api-mcp.xml","external":[{"label":"Remote endpoint","href":"https://oper-stack.com/api/mcp/"},{"label":"Website","href":"https://oper-stack.com/mcp/"}]}}