{"$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":"2026-11-05T16:27:26.172Z","url":"https://verifymcp.io/servers/pipeworx-io-customer-io/pipeworx-mcp-customer-io","markdownUrl":"https://verifymcp.io/servers/pipeworx-io-customer-io/pipeworx-mcp-customer-io.md","server":{"slug":"pipeworx-io-customer-io","name":"Customer Io","registryName":"io.github.pipeworx-io/customer-io","description":"MCP server for customer-io","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"pipeworx-mcp-customer-io","type":"npm","identifier":"@pipeworx/mcp-customer-io","withdrawn":false,"url":"https://verifymcp.io/servers/pipeworx-io-customer-io/pipeworx-mcp-customer-io","version":"0.2.1","transport":"stdio","scoredAt":"2026-11-05T04:10:29.555Z"},"score":{"total":83,"tier":"high trust","status":"scored","weekDelta":3,"history":[{"date":"2026-11-05","total":83},{"date":"2026-11-04","total":83},{"date":"2026-11-03","total":82},{"date":"2026-11-02","total":82},{"date":"2026-11-01","total":81},{"date":"2026-10-31","total":55},{"date":"2026-10-30","total":80},{"date":"2026-10-29","total":80}]},"categories":[{"name":"Supply Chain Security","score":100,"verdict":"pass","reasons":["No malware found by supply-chain analysis.","No known CVEs affecting this package version or its production dependencies.","No install/post-install scripts declared.","No production dependencies, so there is no dependency health to assess."],"codes":[{"code":"supplychain.malware_clean","args":{}},{"code":"cve.none","args":{}},{"code":"installscript.none","args":{}},{"code":"dephealth.no_dependencies","args":{"deps":"0","unhealthy":"0"}}]},{"name":"Provenance & Transparency","score":97,"verdict":"fail","reasons":["Source repository is publicly reachable at the declared URL.","Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-customer-io).","Clear OSI-approved license (MIT).","Actively maintained (last published 4 days ago).","Disclosure check failed: no security disclosure policy was found in the source repository."],"codes":[{"code":"provenance.repo_verified","args":{}},{"code":"provenance.verified","args":{"repo":"pipeworx-io/mcp-customer-io"}},{"code":"license.osi","args":{"spdx":"MIT"}},{"code":"maintenance.recent","args":{"age_days":"4"}},{"code":"disclosure.absent","args":{}}]},{"name":"Schema Quality & AI Usability","score":72,"verdict":"fail","reasons":["AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 510 tokens (~127/item across 4 items; 4 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":"127","items":"4","tools":"4","tokens":"510","resources":"0"}},{"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":94,"verdict":"partial","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","81% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"81"}}]},{"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 5 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":"5","judged":"5"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a supported MCP spec version (2025-11-25); 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Answers which messages reached, bounced, opened, clicked, converted, or unsubscribed recipients.","inputs":[{"name":"_apiKey","type":"string","required":true,"description":"Customer.io App API key"},{"name":"_region","type":"string","required":false,"description":"Workspace region; defaults to us"},{"name":"campaign_id","type":"number","required":false,"description":null},{"name":"end_ts","type":"number","required":false,"description":"Delivery creation range end as Unix seconds"},{"name":"limit","type":"number","required":false,"description":"Maximum deliveries, default 50 and maximum 100"},{"name":"message_type","type":"string","required":false,"description":null},{"name":"metric","type":"string","required":false,"description":null},{"name":"start","type":"string","required":false,"description":"Cursor from the previous response next field"},{"name":"start_ts","type":"number","required":false,"description":"Delivery creation range start as Unix 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