{"$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":"2026-11-05T18:23:21.085Z","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp","markdownUrl":"https://verifymcp.io/servers/com-descovo-descovo/mcp.md","server":{"slug":"com-descovo-descovo","name":"Descovo — B2B contact data","registryName":"com.descovo/descovo","description":"B2B contact data for AI agents: search 700M+ people, reveal work emails. Pay per record.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"mcp","type":"remote","identifier":"https://mcp.descovo.com/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/com-descovo-descovo/mcp","version":"1.0.0","transport":null,"scoredAt":"2026-11-05T03:25:59.762Z"},"score":{"total":60,"tier":"medium","status":"scored","weekDelta":3,"history":[{"date":"2026-11-05","total":60},{"date":"2026-11-04","total":60},{"date":"2026-11-03","total":60},{"date":"2026-11-02","total":59},{"date":"2026-11-01","total":59},{"date":"2026-10-31","total":58},{"date":"2026-10-30","total":58},{"date":"2026-10-29","total":57}]},"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 fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.","HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.","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_undeclared","args":{"undeclared_tools":"5"}},{"code":"https.inconclusive","args":{"reason":"plaintext_status","status":"405"}},{"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":81,"verdict":"fail","reasons":["100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).","AI-judged instruction clarity (good).","Tool/resource definitions use about 771 tokens (~96/item across 8 items; 5 tools + 3 resources), lean.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.descriptions","args":{"pct":"100"}},{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_lean","args":{"avg":"96","items":"8","tools":"5","tokens":"771","resources":"3"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":23,"verdict":"partial","reasons":["Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"7"}}]},{"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":75,"verdict":"fail","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; \"call_operation\" implies \"execute\" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.","An AI judge read all 7 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_undeclared","args":{"pct":"0","tool":"call_operation","verb":"execute","declared":"none","annotated":"0","destructive":"1"}},{"code":"toolsafety.manipulation_clean","args":{"units":"7","judged":"7"}}]},{"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":["Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.","HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement."],"malware":[],"components":[{"slug":"mcp","type":"remote","identifier":"https://mcp.descovo.com/mcp","withdrawn":false,"score":60,"current":true,"url":"https://verifymcp.io/servers/com-descovo-descovo/mcp","markdownUrl":"https://verifymcp.io/servers/com-descovo-descovo/mcp.md"}],"facts":[{"label":"Endpoint","value":"https://mcp.descovo.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_endpoints","title":null,"description":"Canonical API selection tool for endpoint discovery and ranking.\n\nUse this first to get the top recommended operations for a user intent.\nSupports optional constraints plus tag-scoped selection via preferredTags,\nexcludedTags, or a curated tagPack key.","inputs":[{"name":"constraints","type":null,"required":false,"description":null},{"name":"excludedTags","type":null,"required":false,"description":null},{"name":"limit","type":null,"required":false,"description":null},{"name":"preferredTags","type":null,"required":false,"description":null},{"name":"query","type":"string","required":true,"description":null},{"name":"tagPack","type":null,"required":false,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":91},{"name":"list_tag_packs","title":null,"description":"List curated tag packs for large tool catalogs.\n\nUse this to narrow exploration (for example social-media or enrichment).","inputs":[],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":32},{"name":"list_all_endpoints","title":null,"description":"List available Descovo API endpoints with optional tag/search filtering.","inputs":[{"name":"limit","type":null,"required":false,"description":null},{"name":"search","type":null,"required":false,"description":null},{"name":"tagPack","type":null,"required":false,"description":null},{"name":"tags","type":null,"required":false,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":43},{"name":"get_endpoint_details_full","title":null,"description":"Get COMPLETE schema and details for a specific API operation.\n\nUse this BEFORE calling an API to understand exactly what parameters are needed.\n\nArgs:\n    operationId: The operation ID (e.g., \"syncContactEnrichment\")\n\nReturns:\n    Complete schema including all required/optional fields, request body schema,\n    response schema, and example usage.","inputs":[{"name":"operationId","type":"string","required":true,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":86},{"name":"call_operation","title":null,"description":"Execute any Descovo API operation by operationId.\n\nIMPORTANT:\n- apiKey is NOT required in the body if the MCP client sends an x-api-key header (most configs do). The backend auto-injects it.\n- Prefer search_endpoints() first when operation choice is ambiguous.\n- Use get_endpoint_details_full(operationId='...') first for complex/nested parameter shapes.\n\nArgs:\n    operationId: The operation ID to call\n    params: Parameters dict: {\"body\": {...}, \"path\": {...}, \"query\": {...}}\n\nReturns:\n    API response data or error details.","inputs":[{"name":"operationId","type":"string","required":true,"description":null},{"name":"params","type":null,"required":false,"description":null}],"outputs":[],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":140}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T03:25:59.000Z","track":"remote","endpoint":"https://mcp.descovo.com/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=descovo.com","issuer":"CN=YE2,O=Let's Encrypt,C=US","notBefore":"2026-10-28T19:03:24Z","notAfter":"2027-01-26T19:03:23Z","keyType":"ECDSA","keyBits":256,"isCa":false},{"subject":"CN=YE2,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}]},"dnssec":{"result":"insecure","label":"Not signed","name":"mcp.descovo.com.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"com.","outcome":"verified","label":"Verified"},{"zone":"descovo.com.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"none","label":"No authorisation required","gate":null,"gateLabel":null,"status":200,"authorizationServers":[]},"httpsRedirect":{"outcome":"inconclusive","label":"Inconclusive","status":405},"transports":[{"transport":"streamable-http","outcome":"verified","label":"Verified","status":200,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-10-29","recent":[{"id":"chg_01a19f6f-75ca-71ff-9e79-b25b7fa75e7f","kind":"score.total_changed","summary":"Trust score (59 → 60)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp#chg-chg_01a19f6f-75ca-71ff-9e79-b25b7fa75e7f"},{"id":"chg_01a19524-e803-735b-aaee-af03c6504581","kind":"score.total_changed","summary":"Trust score (58 → 59)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-01","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp#chg-chg_01a19524-e803-735b-aaee-af03c6504581"},{"id":"chg_01a18ad6-9bd6-7776-ba58-22a204c87132","kind":"check.reverified","summary":"Stability (unverified → 0.03)","materiality":"functional","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp#chg-chg_01a18ad6-9bd6-7776-ba58-22a204c87132"},{"id":"chg_01a18ad6-9bd6-7f32-8ef1-04d33496bba1","kind":"score.total_changed","summary":"Trust score (57 → 58)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp#chg-chg_01a18ad6-9bd6-7f32-8ef1-04d33496bba1"},{"id":"chg_01a189e4-8822-76d8-b079-a0558dced769","kind":"score.first_scored","summary":"First indexed and scored","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-29","url":"https://verifymcp.io/servers/com-descovo-descovo/mcp#chg-chg_01a189e4-8822-76d8-b079-a0558dced769"}],"truncated":false,"feedUrl":"https://verifymcp.io/servers/com-descovo-descovo/mcp/changelog.json"},"links":{"html":"https://verifymcp.io/servers/com-descovo-descovo/mcp","markdown":"https://verifymcp.io/servers/com-descovo-descovo/mcp.md","changelogJson":"https://verifymcp.io/servers/com-descovo-descovo/mcp/changelog.json","changelogRss":"https://verifymcp.io/servers/com-descovo-descovo/mcp.xml","external":[{"label":"Remote endpoint","href":"https://mcp.descovo.com/mcp"},{"label":"Authorisation metadata","href":"https://mcp.descovo.com/.well-known/oauth-protected-resource/mcp"},{"label":"Website","href":"https://descovo.com/"}]}}