{"$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":"2026-11-05T16:31:03.623Z","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg","markdownUrl":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.md","server":{"slug":"chrisyau83-jpg-now","name":"JPG.now MCP Server","registryName":"io.github.chrisyau83/jpg-now","description":"Convert JPG images to and from popular formats through MCP-compatible AI clients.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"jpg","type":"remote","identifier":"https://jpg.now/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg","version":"1.0.0","transport":null,"scoredAt":"2026-11-05T05:19:36.010Z"},"score":{"total":70,"tier":"medium","status":"scored","weekDelta":4,"history":[{"date":"2026-11-05","total":70},{"date":"2026-11-04","total":70},{"date":"2026-11-03","total":69},{"date":"2026-11-02","total":68},{"date":"2026-11-01","total":68},{"date":"2026-10-31","total":68},{"date":"2026-10-30","total":66},{"date":"2026-10-29","total":66},{"date":"2026-10-28","total":66},{"date":"2026-10-27","total":33}]},"categories":[{"name":"Endpoint Security","score":74,"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.","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.none_no_destructive","args":{}},{"code":"https.enforced","args":{}},{"code":"headers.hsts_absent","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":62,"verdict":"fail","reasons":["AI-judged instruction clarity (fair).","Tool/resource definitions use about 225 tokens (~56/item across 4 items; 4 tools + 0 resources), lean.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"fair"}},{"code":"schema.footprint_lean","args":{"avg":"56","items":"4","tools":"4","tokens":"225","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":27,"verdict":"partial","reasons":["Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"8"}}]},{"name":"Tool Coverage","score":71,"verdict":"fail","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","0% of tool parameters carry a description.","Structured output schemas are declared (100% of tools); any adoption earns full credit."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"0"}},{"code":"toolquality.output_present","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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 4 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":"4"}},{"code":"toolsafety.manipulation_clean","args":{"units":"4","judged":"4"}}]},{"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":"jpg","type":"remote","identifier":"https://jpg.now/mcp","withdrawn":false,"score":70,"current":true,"url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg","markdownUrl":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.md"}],"facts":[{"label":"Endpoint","value":"https://jpg.now/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"list_converters","title":"List JPG.now converters","description":"Search the live JPG.now converter catalog and return valid converter slugs such as png-to-jpg, jpg-to-webp, pdf-to-jpg, and compress-jpg.","inputs":[{"name":"limit","type":"integer","required":false,"description":null},{"name":"search","type":"string","required":false,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":58},{"name":"convert_image_url","title":"Convert an image from a URL","description":"Download a publicly accessible image or document URL, submit it to JPG.now using a converter slug, and optionally wait for the result. 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A completed job includes an absolute, temporary download URL.","inputs":[{"name":"job_id","type":"string","required":true,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":35},{"name":"get_api_usage","title":"Get JPG.now API usage","description":"Return the caller's JPG.now API credits, usage, and rate limit.","inputs":[],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":24}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T05:19:36.000Z","track":"remote","endpoint":"https://jpg.now/mcp","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 1.3","cipherSuite":"TLS_AES_256_GCM_SHA384","chainError":null,"certificates":[{"subject":"CN=jpg.now","issuer":"CN=YE1,O=Let's Encrypt,C=US","notBefore":"2026-10-31T08:18:38Z","notAfter":"2027-01-29T08:18:37Z","keyType":"ECDSA","keyBits":256,"isCa":false},{"subject":"CN=YE1,O=Let's Encrypt,C=US","issuer":"CN=Root YE,O=ISRG,C=US","notBefore":"2025-09-03T00:00:00Z","notAfter":"2028-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true},{"subject":"CN=Root YE,O=ISRG,C=US","issuer":"CN=ISRG Root X2,O=Internet Security Research Group,C=US","notBefore":"2026-05-13T00:00:00Z","notAfter":"2032-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true},{"subject":"CN=ISRG Root X2,O=Internet Security Research Group,C=US","issuer":"CN=ISRG Root X1,O=Internet Security Research Group,C=US","notBefore":"2026-05-13T00:00:00Z","notAfter":"2032-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true},{"subject":"CN=ISRG Root X1,O=Internet Security Research Group,C=US","issuer":"CN=ISRG Root X1,O=Internet Security Research Group,C=US","notBefore":"2015-06-04T11:04:38Z","notAfter":"2035-06-04T11:04:38Z","keyType":"RSA","keyBits":4096,"isCa":true}]},"dnssec":{"result":"insecure","label":"Not signed","name":"jpg.now.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"now.","outcome":"verified","label":"Verified"},{"zone":"jpg.now.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"none","label":"No authorisation required","gate":null,"gateLabel":null,"status":200,"authorizationServers":[]},"httpsRedirect":{"outcome":"https_enforced","label":"HTTPS enforced","status":301},"transports":[{"transport":"streamable-http","outcome":"verified","label":"Verified","status":400,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-10-27","recent":[{"id":"chg_01a1a4f9-b1d3-7e71-8662-861ac662aa3d","kind":"score.total_changed","summary":"Trust score (69 → 70)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-04","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a1a4f9-b1d3-7e71-8662-861ac662aa3d"},{"id":"chg_01a19fd5-24ce-71e4-8f12-1b148b254760","kind":"check.verdict","summary":"Transport (fail → pass)","materiality":"security","direction":"improvement","scoreDelta":null,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19fd5-24ce-71e4-8f12-1b148b254760"},{"id":"chg_01a19fd5-24db-7392-a27f-9d78a75f7e00","kind":"check.reverified","summary":"Authorization (unverified → partial)","materiality":"security","direction":"improvement","scoreDelta":null,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19fd5-24db-7392-a27f-9d78a75f7e00"},{"id":"chg_01a19fd5-24e3-7721-9988-4ce3659339a5","kind":"check.reverified","summary":"Injection markers (unverified → 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day","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19fd5-24f7-7e18-8e27-b0bd38ec30dc"},{"id":"chg_01a19fd5-24f8-7bfa-82e1-a004733ca77b","kind":"score.total_changed","summary":"Trust score (68 → 69)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19fd5-24f8-7bfa-82e1-a004733ca77b"},{"id":"chg_01a19aac-6020-7f38-825d-d5fbb73e22dc","kind":"check.unverifiable","summary":"Stability (0.13 → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6020-7f38-825d-d5fbb73e22dc"},{"id":"chg_01a19aac-6022-70bf-9f5f-6894c0811557","kind":"check.unverifiable","summary":"Tool safety (pass → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6022-70bf-9f5f-6894c0811557"},{"id":"chg_01a19aac-6022-7664-967c-00882c6f49f7","kind":"check.verdict","summary":"Transport (pass → fail)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6022-7664-967c-00882c6f49f7"},{"id":"chg_01a19aac-6022-7bbc-9103-c521e15bf04c","kind":"check.unverifiable","summary":"Authorization (partial → unverified)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6022-7bbc-9103-c521e15bf04c"},{"id":"chg_01a19aac-6023-71b2-923e-7da3d45e0fae","kind":"check.unverifiable","summary":"Capabilities (pass → unverified)","materiality":"functional","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6023-71b2-923e-7da3d45e0fae"},{"id":"chg_01a19aac-6023-76cc-ae42-7da24f6f00ea","kind":"check.unverifiable","summary":"Tool coverage (100 → unverified)","materiality":"functional","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6023-76cc-ae42-7da24f6f00ea"},{"id":"chg_01a19aac-6024-7071-a042-14f9bb4a3932","kind":"capture.status_changed","summary":"Endpoint reachability (reachable → unreachable)","materiality":"security","direction":"regression","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6024-7071-a042-14f9bb4a3932"},{"id":"chg_01a19aac-6024-77de-8242-15e74e517ec2","kind":"score.total_changed","summary":"Trust score (68 → 23)","materiality":"functional","direction":"regression","scoreDelta":-45,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19aac-6024-77de-8242-15e74e517ec2"},{"id":"chg_01a19060-020f-7290-8239-14e24f299863","kind":"check.verdict","summary":"Transport (fail → pass)","materiality":"security","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19060-020f-7290-8239-14e24f299863"},{"id":"chg_01a19060-0219-7c18-bfea-3a46c1abb51c","kind":"check.reverified","summary":"Authorization (unverified → partial)","materiality":"security","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg#chg-chg_01a19060-0219-7c18-bfea-3a46c1abb51c"}],"truncated":true,"feedUrl":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg/changelog.json"},"links":{"html":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg","markdown":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.md","changelogJson":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg/changelog.json","changelogRss":"https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.xml","external":[{"label":"Remote endpoint","href":"https://jpg.now/mcp"},{"label":"Authorisation metadata","href":"https://jpg.now/.well-known/oauth-protected-resource/mcp"},{"label":"Repository","href":"https://github.com/chrisyau83/jpg-now"}]}}