{"$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":"2026-11-06T13:44:03.034Z","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie","markdownUrl":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie.md","server":{"slug":"io-usefulapi-zylvie","name":"Zylvie MCP by usefulapi","registryName":"io.usefulapi/zylvie","description":"Review Zylvie coupons, sales transactions and subscriptions.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"zylvie","type":"remote","identifier":"https://zylvie.usefulapi.io/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie","version":"1.6.4","transport":null,"scoredAt":"2026-11-06T13:02:03.814Z"},"score":{"total":18,"tier":"low","status":"scored","weekDelta":-41,"history":[{"date":"2026-11-06","total":18},{"date":"2026-11-05","total":18},{"date":"2026-11-04","total":18},{"date":"2026-11-03","total":18},{"date":"2026-11-02","total":18},{"date":"2026-11-01","total":63},{"date":"2026-10-31","total":62},{"date":"2026-10-30","total":59}]},"categories":[{"name":"Endpoint Security","score":46,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.","HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven.","HSTS check failed: the Strict-Transport-Security header is absent.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.unreachable","args":{}},{"code":"https.inconclusive","args":{"reason":"redirect_not_https"}},{"code":"headers.hsts_absent","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":0,"verdict":"fail","reasons":["Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly."],"codes":[{"code":"transport.redirected","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":0,"verdict":"unverified","reasons":["Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list."],"codes":[{"code":"schema.unreachable","args":{}}]},{"name":"Stability & Change Management","score":0,"verdict":"unverified","reasons":["Stability not yet verified: not enough scan history yet (needs a 30-day window)."],"codes":[{"code":"stability.insufficient_history","args":{}}]},{"name":"Tool Coverage","score":0,"verdict":"unverified","reasons":["Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list."],"codes":[{"code":"toolquality.unreachable","args":{}}]},{"name":"Tool Safety","score":0,"verdict":"unverified","reasons":["Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list."],"codes":[{"code":"toolsafety.unreachable","args":{}}]},{"name":"Capabilities","score":0,"verdict":"unverified","reasons":["Capabilities not yet verified: we couldn't read the endpoint's capabilities."],"codes":[{"code":"cap.unreachable","args":{}}]}],"inconclusive":["Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.","HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven.","Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.","Stability not yet verified: not enough scan history yet (needs a 30-day window).","Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.","Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.","Capabilities not yet verified: we couldn't read the endpoint's capabilities."],"malware":[],"components":[{"slug":"zylvie","type":"remote","identifier":"https://zylvie.usefulapi.io/mcp","withdrawn":false,"score":18,"current":true,"url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie","markdownUrl":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie.md"}],"facts":[{"label":"Endpoint","value":"https://zylvie.usefulapi.io/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.6.4"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"zylvie_get_account","title":"Get authenticating account","description":"Authenticating account email and brand. 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Read-only.","inputs":[{"name":"date_from","type":"string","required":false,"description":null},{"name":"date_to","type":"string","required":false,"description":null},{"name":"email","type":"string","required":false,"description":null},{"name":"limit","type":"integer","required":false,"description":null},{"name":"page","type":"integer","required":false,"description":null},{"name":"product_id","type":"string","required":false,"description":null},{"name":"refunded","type":"boolean","required":false,"description":null},{"name":"status","type":"string","required":false,"description":"Payment/subscription status; vendor values are open-ended."},{"name":"transaction_id","type":"string","required":false,"description":null}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":137},{"name":"zylvie_list_subscriptions","title":"List subscriptions","description":"Subscription status, amount, cancellation/trial dates, product and buyer name/email, newest first. Amounts are major currency units, unlike the separate verify-subscription API. An active subscription may have cancel_at set. Excludes addresses, phone/card/bank details and custom fields. Read-only.","inputs":[{"name":"date_from","type":"string","required":false,"description":null},{"name":"date_to","type":"string","required":false,"description":null},{"name":"email","type":"string","required":false,"description":null},{"name":"limit","type":"integer","required":false,"description":null},{"name":"page","type":"integer","required":false,"description":null},{"name":"product_id","type":"string","required":false,"description":null},{"name":"status","type":"string","required":false,"description":"Payment/subscription status; vendor values are open-ended."},{"name":"subscription_id","type":"string","required":false,"description":null}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":141}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-06T13:02:03.000Z","track":"remote","endpoint":"https://zylvie.usefulapi.io/mcp","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 1.3","cipherSuite":"TLS_AES_128_GCM_SHA256","chainError":null,"certificates":[{"subject":"CN=usefulapi.io","issuer":"CN=WE1,O=Google Trust Services,C=US","notBefore":"2026-09-13T08:55:39Z","notAfter":"2026-12-12T09:54:12Z","keyType":"ECDSA","keyBits":256,"isCa":false},{"subject":"CN=WE1,O=Google Trust Services,C=US","issuer":"CN=GTS Root R4,O=Google Trust Services LLC,C=US","notBefore":"2023-12-13T09:00:00Z","notAfter":"2029-02-20T14:00:00Z","keyType":"ECDSA","keyBits":256,"isCa":true},{"subject":"CN=GTS Root R4,O=Google Trust Services LLC,C=US","issuer":"CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE","notBefore":"2023-11-15T03:43:21Z","notAfter":"2028-01-28T00:00:42Z","keyType":"ECDSA","keyBits":384,"isCa":true}]},"dnssec":{"result":"insecure","label":"Not signed","name":"zylvie.usefulapi.io.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"io.","outcome":"verified","label":"Verified"},{"zone":"usefulapi.io.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"inconclusive","label":"Inconclusive","gate":null,"gateLabel":null,"status":302,"authorizationServers":[]},"httpsRedirect":{"outcome":"inconclusive","label":"Inconclusive","status":302},"transports":[{"transport":"streamable-http","outcome":"redirected","label":"Redirected","status":302,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-10-30","recent":[{"id":"chg_01a1af4a-d7b2-7edd-a0ef-16026acc46ad","kind":"score.rubric_changed","summary":"We updated how we score, so this day's move reflects our rubric, not a change to the server","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-11-06","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a1af4a-d7b2-7edd-a0ef-16026acc46ad"},{"id":"chg_01a19aa8-2424-72c7-9b42-c83d21bf65db","kind":"check.unverifiable","summary":"Stability (0.07 → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2424-72c7-9b42-c83d21bf65db"},{"id":"chg_01a19aa8-2425-7209-bfeb-568aa0a058c9","kind":"check.unverifiable","summary":"Tool safety (pass → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2425-7209-bfeb-568aa0a058c9"},{"id":"chg_01a19aa8-2425-7725-984a-e7a903de41e9","kind":"check.unverifiable","summary":"Authorization (pass → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2425-7725-984a-e7a903de41e9"},{"id":"chg_01a19aa8-2425-7c4a-a592-73248f5c43a4","kind":"check.unverifiable","summary":"Schema quality (100 → unverified)","materiality":"functional","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2425-7c4a-a592-73248f5c43a4"},{"id":"chg_01a19aa8-2426-71bd-a56c-988892d931cb","kind":"check.unverifiable","summary":"Capabilities (pass → unverified)","materiality":"functional","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2426-71bd-a56c-988892d931cb"},{"id":"chg_01a19aa8-2426-772b-88f4-df37bfc0a22b","kind":"check.unverifiable","summary":"Tool coverage (100 → unverified)","materiality":"functional","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2426-772b-88f4-df37bfc0a22b"},{"id":"chg_01a19aa8-2426-7c3a-8fb3-35143a11bf74","kind":"capture.status_changed","summary":"Endpoint reachability (reachable → not serving MCP)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2426-7c3a-8fb3-35143a11bf74"},{"id":"chg_01a19aa8-2427-7188-82bd-dc9417125532","kind":"score.total_changed","summary":"Trust score (63 → 18)","materiality":"functional","direction":"regression","scoreDelta":-45,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19aa8-2427-7188-82bd-dc9417125532"},{"id":"chg_01a19581-d663-799f-86dc-7a2c3f6b535d","kind":"score.total_changed","summary":"Trust score (62 → 63)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-01","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a19581-d663-799f-86dc-7a2c3f6b535d"},{"id":"chg_01a193fa-d106-771b-a786-25aff9fd58cb","kind":"check.verdict","summary":"Authorization (partial → pass)","materiality":"security","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d106-771b-a786-25aff9fd58cb"},{"id":"chg_01a193fa-d107-7b47-8197-ccfd6ea11afd","kind":"check.verdict","summary":"MCP protocol (fail → pass)","materiality":"functional","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d107-7b47-8197-ccfd6ea11afd"},{"id":"chg_01a193fa-d108-70b8-a57d-f0d323bace01","kind":"prompt.added","summary":"New prompt “inspect_sales_and_refund_activity”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d108-70b8-a57d-f0d323bace01"},{"id":"chg_01a193fa-d108-7526-a83e-5594ad7d39b6","kind":"prompt.added","summary":"New prompt “review_coupon_performance”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d108-7526-a83e-5594ad7d39b6"},{"id":"chg_01a193fa-d108-7f0c-a9a8-adb3fc93281c","kind":"prompt.added","summary":"New prompt “review_upcoming_subscription_cancellations”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d108-7f0c-a9a8-adb3fc93281c"},{"id":"chg_01a193fa-d109-75aa-b880-39f07e3207ef","kind":"server.version_changed","summary":"Server version (1.2.0 → 1.4.0)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d109-75aa-b880-39f07e3207ef"},{"id":"chg_01a193fa-d10a-7423-8ffe-93109da95a1f","kind":"protocol.version_changed","summary":"MCP protocol version (2025-06-18 → 2025-11-25)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d10a-7423-8ffe-93109da95a1f"},{"id":"chg_01a193fa-d10a-7c78-9951-7ebc653ae51f","kind":"score.total_changed","summary":"Trust score (59 → 62)","materiality":"functional","direction":"improvement","scoreDelta":3,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a193fa-d10a-7c78-9951-7ebc653ae51f"},{"id":"chg_01a1931e-e942-7bb4-81c4-745202642839","kind":"server.version_changed","summary":"Server version (1.1.0 → 1.2.0)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a1931e-e942-7bb4-81c4-745202642839"},{"id":"chg_01a191d5-767d-7d23-b6fd-316c089cb575","kind":"server.version_changed","summary":"Server version (1.0.2 → 1.1.0)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie#chg-chg_01a191d5-767d-7d23-b6fd-316c089cb575"}],"truncated":true,"feedUrl":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie/changelog.json"},"links":{"html":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie","markdown":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie.md","changelogJson":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie/changelog.json","changelogRss":"https://verifymcp.io/servers/io-usefulapi-zylvie/zylvie.xml","external":[{"label":"Remote endpoint","href":"https://zylvie.usefulapi.io/mcp"},{"label":"Repository","href":"https://github.com/m190/usefulapi-mcp"},{"label":"Website","href":"https://usefulapi.io/zylvie/"}]}}