{"generated_at":"2026-10-14T20:07:22+00:00","item":{"added_at":"2026-09-20","analysis_method":"independent_manual_review_2026-10-10","assessment_status":"provisional","auth_posture":"auth_required","category":"Web Connector","confidence":"medium","description":"Researches which technologies companies use through Stack Lookup. Look up domains or companies, compare stacks, and find businesses matching technology and company filters. Read-only results include observed hosts and first- and last-verified dates.","did":"29d20e3b-bc67-44c6-8149-5d693535de22","documentation_url":"https://stacklookup.ai/api/mcp","editorial_description":{"extended_description":"Veridion data links domains to companies and their hosts. Profile technology adoption by geography, industry or company size, and identify companies first observed using a technology since a chosen date. The service uses credits and includes tools to count matches and check account usage.","schema_version":1,"summary":"Researches which technologies companies use through Stack Lookup.\nLook up domains or companies, compare stacks, and find businesses matching technology and company filters.\nRead-only results include observed hosts and first- and last-verified dates."},"homepage_url":"","icon":"https://stacklookup.ai/favicon.svg","id":"29d20e3b-bc67-44c6-8149-5d693535de22","installs":0,"last_scanned":"","license":"","long_description":"Veridion data links domains to companies and their hosts. Profile technology adoption by geography, industry or company size, and identify companies first observed using a technology since a chosen date. The service uses credits and includes tools to count matches and check account usage.","manual_assessment":"high","manual_review":{"all_findings":[{"evidence":"The description states free keys include 5,000 credits monthly and distinguishes no-cost count/profile/usage tools so a list can be sized before any of it is paid for.","reasoning":"Non-free lookup operations can consume finite paid service credits.","risk_type":"financial_transaction","severity":"high","title":"Company-list lookups consume finite service credits","triggering_tools_or_skills":["find_companies","lookup_company","lookup_domain","technology_changes","compare_stacks"]}],"assessment_status":"provisional","auth_and_scopes":"Authentication is required for Stack Lookup; account_usage exposes credit balance, but exact plan and per-tool credit costs are not in the packet.","blocked_missing_evidence":null,"confidence":"medium","displayed_risk":"high","evidence_completeness":"partial","manual_overall_risk":"high","official_sources":[{"accessed_at":"2026-10-10T20:24:37Z","url_or_path":"plutosecurity/plutonium@b749c8dc43536c794409be9805edd48063f045e2:app/data/conn/claudesec/29d20e3b-bc67-44c6-8149-5d693535de22.json","what_it_proves":"Candidate PR #125 record identity (name \"Stack Lookup\", publisher, type web_connector) and 8 stored tool names; no tool descriptions stored"},{"accessed_at":"2026-09-22T10:46:07Z","url_or_path":"https://api.anthropic.com/api/directory/servers?verified_tier=anthropic,partner,community (snapshot claude-directory-all-tiers-2026-09-22.json)","what_it_proves":"Official Claude Directory listing https://claude.ai/directory/29d20e3b-bc67-44c6-8149-5d693535de22: complete tool_names inventory (8 tools), remote streamable-http endpoint https://stacklookup.ai/mcp, auth_posture auth_required, directory tier community"}],"primary_reason":"Stack Lookup is read-only but company-list/research requests can consume paid service credits.","provisional_risk":null,"publication_recommendation":"accept","requires_runtime_verification":true,"review_key":"claude:29d20e3b-bc67-44c6-8149-5d693535de22","reviewed_at":"2026-10-10","reviewer_notes":"The official docs URL was inaccessible. Runtime UI should expose per-tool credit cost and remaining balance before large company-list retrievals.","risk_domains":{"arbitrary_network_access":"false","authz_ambiguity":"true","browser_control":"false","credential_or_admin_actions":"false","deletes_data":"false","deployment_or_infrastructure":"false","dynamic_hidden_actions":"false","filesystem_or_repo_access":"false","forwards_data_to_third_party":"true","modifies_data":"false","persistent_credentials":"true","prompt_injection_exposure":"false","provenance_uncertainty":"true","reads_private_data":"false","runs_code_or_queries":"false","sends_messages_as_user":"false","spends_or_moves_money":"true"},"tools_or_skills_reviewed":8,"tools_or_skills_total":8},"name":"Stack Lookup","needs_runtime_verification":true,"plutonium_url":"https://plutonium.pluto.security/detail.html?planet=claudesec&did=29d20e3b-bc67-44c6-8149-5d693535de22&utm_source=plutonium_analysis_skill&utm_medium=claude_skill&utm_campaign=connector_risk_assessment","privacy_policy_url":"https://stacklookup.ai/privacy","provisional_risk":null,"publication_recommendation":"accept","publisher":"Stack Lookup","publisher_url":"http://stacklookup.ai/","remote_url":"https://stacklookup.ai/mcp","repository_url":"","risk":"high","risk_severity":"high","security_risks":[{"description":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits.","evidence":"Company-list lookups consume finite service credits: The description states free keys include 5,000 credits monthly and distinguishes no-cost count/profile/usage tools so a list can be sized before any of it is paid for.","manual_risk_type":"financial_transaction","remediation":{"block_tool_categories":["financial"],"steps":["Set provider-side spending limits and require approval for every financial action.","Use a dedicated low-balance account and review transaction logs."]},"risk_type":"spends_money","severity":"high","title":"Company-list lookups consume finite service credits","triggering_tools":["find_companies","lookup_company","lookup_domain","technology_changes","compare_stacks"]}],"signature_status":"unknown","source_code_reviewed":false,"support_url":"https://stacklookup.ai/contact","tags":["network_access","oauth_required","spends_money","web_connector"],"tools":[{"description":"","name":"account_usage"},{"description":"","name":"compare_stacks","risk":{"category":"financial","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits."}},{"description":"","name":"count_companies"},{"description":"","name":"find_companies","risk":{"category":"financial","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits."}},{"description":"","name":"lookup_company","risk":{"category":"financial","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits."}},{"description":"","name":"lookup_domain","risk":{"category":"financial","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits."}},{"description":"","name":"technology_changes","risk":{"category":"financial","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can spend money, consume paid credits, or change financially consequential resources. Review findings: Non-free lookup operations can consume finite paid service credits."}},{"description":"","name":"technology_profile"}],"tools_count":8,"transport":"streamable-http","type":"web_connector","url":"https://claude.ai/directory/29d20e3b-bc67-44c6-8149-5d693535de22","uuid":"1ec13f1d-8c90-5dfe-a1aa-e0c66f64b770","verification_tier":"community","version":""},"query_key":"stack lookup","schema_version":1,"status":"match"}