{"target":"mcp:io.github.cyanheads/crossref-mcp-server","resolved_target":"mcp:io.github.cyanheads/crossref-mcp-server","message":"MCP Registry declaration recorded; observed daily by Lowdown Scanner since 2026-10-19; tool definitions last changed on 2026-10-25 after 1 days without change; no agent-reported interactions.","registry":{"listed":true,"name":"io.github.cyanheads/crossref-mcp-server","declared_version":"0.4.4","status":"active","removed_at":null,"remote_hosts":["crossref.caseyjhand.com"],"declares_packages":true,"first_recorded_at":"2026-10-19T06:19:52.681+00:00","recorded_since_baseline":true,"changes_30d":[{"on":"2026-10-25","kind":"version","old":"0.4.3","new":"0.4.4"},{"on":"2026-10-25","kind":"packages"},{"on":"2026-10-24","kind":"version","old":"0.4.2","new":"0.4.3"},{"on":"2026-10-24","kind":"packages"},{"on":"2026-10-24","kind":"description"}],"note":"Recorded from Lowdown's first Registry snapshot (2026-10-19); first_recorded_at is not when the entry first appeared in the Registry."},"packages":[{"registry":"npm","name":"@cyanheads/crossref-mcp-server","declared_version":"0.4.4","npm":{"status":"found","latest":"0.4.4","latest_deprecated":false,"modified":"2026-10-24T11:51:43.129Z","declared_is_latest":true,"first_checked_at":"2026-10-22T04:53:50.318Z","checked_at":"2026-10-25T19:37:09.419Z","recent_events":[{"on":"2026-10-24","kind":"latest_changed","old":"0.4.3","new":"0.4.4"},{"on":"2026-10-23","kind":"latest_changed","old":"0.4.2","new":"0.4.3"}]}},{"registry":"npm","name":"@cyanheads/crossref-mcp-server","declared_version":"0.4.4","npm":{"status":"found","latest":"0.4.4","latest_deprecated":false,"modified":"2026-10-24T11:51:43.129Z","declared_is_latest":true,"first_checked_at":"2026-10-22T04:53:50.318Z","checked_at":"2026-10-25T19:37:09.419Z","recent_events":[{"on":"2026-10-24","kind":"latest_changed","old":"0.4.3","new":"0.4.4"},{"on":"2026-10-23","kind":"latest_changed","old":"0.4.2","new":"0.4.3"}]}}],"packages_note":"npm values are recorded daily by Lowdown from npm's public registry metadata (registry.npmjs.org); package code is not run. latest_deprecated refers only to the version npm tags as latest, not to other versions. not_found means npm answered HTTP 404; network errors and 429/5xx responses do not change the recorded status. Other package types are not checked.","scanner":{"target":"mcp:io.github.cyanheads/crossref-mcp-server","last_observed_at":"2026-10-26T01:22:20.292+00:00","observations_30d":8,"remotes_observed":1,"latest":{"reached_level":2,"http_status":200,"error_type":null,"latency_ms":293,"tool_count":7,"schema_hash":"aeef59d3859cd617","server_version":"0.4.4"},"schema_versions_30d":3,"status_distribution_30d":{"200":8},"in_sample":true,"observation_basis":"fixed_cohort","cohorts":["2026-10-19-v2"],"first_observed_at":"2026-10-19T06:25:29.114+00:00","definition_changes":{"pattern":"changed","observed_days":8,"compared_days":7,"change_days":2,"first_compared_day":"2026-10-19","last_change":"2026-10-25","days_since_last_change":1,"stable_days_before_last_change":1,"events":[{"day":"2026-10-25","kinds":["schema_changed","server_version_changed"],"server_version":{"from":"0.4.3","to":"0.4.4"},"returned_to_earlier_definition":false,"compared_with":"2026-10-24"},{"day":"2026-10-24","kinds":["schema_changed","description_changed","server_version_changed"],"server_version":{"from":"0.4.2","to":"0.4.3"},"returned_to_earlier_definition":false,"compared_with":"2026-10-23"}],"note":"Tool definitions changed on 2 of 7 compared days.","basis":"Each daily observation is compared with the previous one from the same remote URL, using hashes of tool schemas, descriptions and names. Description text is not returned. A change is a recorded fact, not a judgment about the server."},"daily_30d":[{"day":"2026-10-19","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":null,"retry_reached_level":null,"remotes":1},{"day":"2026-10-20","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":false,"retry_reached_level":null,"remotes":1},{"day":"2026-10-21","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":false,"retry_reached_level":null,"remotes":1},{"day":"2026-10-22","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":false,"retry_reached_level":null,"remotes":1},{"day":"2026-10-23","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":false,"retry_reached_level":null,"remotes":1},{"day":"2026-10-24","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":true,"retry_reached_level":null,"remotes":1},{"day":"2026-10-25","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":true,"retry_reached_level":null,"remotes":1},{"day":"2026-10-26","reached_level":2,"http_status":200,"error_type":null,"tool_count":7,"tools_changed":false,"retry_reached_level":null,"remotes":1}],"missing_days":[],"tools":{"names":["crossref_get_member","crossref_get_prefix","crossref_get_references","crossref_get_work","crossref_search_funders","crossref_search_journals","crossref_search_works"],"count":7,"partial":false,"set_first_observed_at":"2026-10-20T18:16:10.822+00:00","observed_at":"2026-10-26T01:22:20.292+00:00"},"declared_vs_observed":{"declared_version":"0.4.4","observed_server_version":"0.4.4","declared_hosts":["crossref.caseyjhand.com"],"observed_hosts":["crossref.caseyjhand.com"]},"method":{"requests":"POST initialize, then tools/list. No tool calls and no authentication.","vantage":"One network location (GitHub Actions). A timeout or refusal means not reachable from there, not necessarily from everywhere.","frequency":"Once per day, for a fixed sample of MCP Registry entries with a streamable-http remote, plus entries looked up through this API (observation_basis: on_request, observed from the day after the lookup).","limits":"Each row is a single probe at one moment. It is not a measure of availability or uptime, and not a score.","dataset":"https://github.com/PetShopBros/lowdown-data"},"note":"Observed by Lowdown Scanner (initialize + tools/list only; no tool calls). Not included in success_rate."},"interactions":0,"success_rate":null,"confidence":"none","source":{"name":"Lowdown","lookup":"https://lowdown-proxy.vercel.app/api/reputation/mcp:io.github.cyanheads/crossref-mcp-server","dataset":"https://github.com/PetShopBros/lowdown-data","license":"CC BY 4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","license_applies_to":"registry and scanner blocks (MCP Registry records and Lowdown Scanner observations)","retrieved_at":"2026-10-26T16:57:39.543Z","cite":"Lowdown (https://github.com/PetShopBros/lowdown-data), retrieved 2026-10-26, CC BY 4.0"}}