{"schema_version":"v0.1","generated_at":"2026-09-08 15:03 UTC","methodology_version":"v4.3","license":"CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/","name":"LangChain4j","repo":"langchain4j/langchain4j","display_repo":"","url":"https://github.com/langchain4j/langchain4j","listing_class":"agent","rank":1293,"previous_rank":null,"rank_delta":null,"stars":13048,"stars_fmt":"13.0k","forks":2535,"forks_fmt":"2.5k","last_push":"2026-09-08","days_ago":0,"weekly_commits":194,"commits_low_confidence":false,"score":90.5,"description":"LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unif","language":"Java","open_issues":611,"category":"Agent Frameworks","category_rank":116,"npm_package":"","crate_package":"","pypi_package":"","weekly_downloads":null,"dl_source":"","hn_mentions_30d":null,"has_provenance":false,"npm_provenance":null,"pypi_provenance":null,"signed_commits_ratio":0.79,"scorecard_score":null,"scorecard_checks":{},"scorecard_scanned_at":null,"slug":"langchain4j","full_fetched_at":"2026-09-08T13:00:02Z","source_note":"","public_actions":null,"mcp_server_support":{"status":"declared","confidence":"medium","evidence":["README/docs mention MCP support","Found MCP-related server path: langchain4j-mcp/src/main/java/dev/langchain4j/mcp/client/McpServerInfo.java","Found MCP-related server path: langchain4j-mcp/src/main/java/dev/langchain4j/mcp/protocol/McpServerDiscoverParams.java","Found MCP-related server test path: langchain4j-agentic-mcp/src/test/java/dev/langchain4j/agentic/mcp/McpServerHelper.java"]},"external_service_dependencies":{"providers":[],"requires_api_keys":false,"confidence":null,"evidence":[]},"tool_plugin_surface":{"plugin_system":"none","tool_tags":[],"confidence":null,"evidence":[]},"package_provenance_drift":{"status":"not_applicable","confidence":null,"summary":"No package source configured","evidence":[]},"evidence_grade":"D","coverage_grade":"D","signal_coverage":0.2,"signal_types":1,"listing_status":"listed","display_listing_status":"listed","display_status_label":"Listed","has_warning":false,"warning_reasons":[],"license_spdx":"Apache-2.0","license_type":"open","license_override":"","trust_score":26.6,"trust_score_v2":26.6,"rank_v2":1293,"rank_v2_delta":303,"trust_v2_adjustment":0.0,"trust_confidence":0.5,"trust_breakdown":{"safety":4.0,"identity":10.8,"transparency":8.5,"maintenance":20.0,"adoption":9.9},"trust_v2_breakdown":{"mcp":0.0,"external_dependencies":-0.0,"tool_plugin_surface":-0.0,"package_provenance_drift":0.0},"pending_signals":false,"trust_credential":{"spec":"https://hvtracker.net/spec/trust-credential/v0.2","version":"0.2","issuer":"hvtracker.net","subject":{"repo":"langchain4j/langchain4j","slug":"langchain4j","agent_url":"https://hvtracker.net/agents/langchain4j"},"methodology_version":"v4.3","issued_at":"2026-09-08 15:03 UTC","expires_at":"2026-09-15T15:03:34Z","trust_score":26.6,"confidence":0.5,"evidence_grade":"D","dimensions":{"safety":4.0,"identity":10.8,"transparency":8.5,"maintenance":20.0,"adoption":9.9},"listing_status":"listed","evidence_hash":"a8d49546771cb5b52a340d7cca01b0b81527b3ab5ce44593f20829d4d63a9684","signature":"f72K76bkgsIcyN+9/gHiTGBK/4zKHaD+oNg2ly77k84P7PgZnJu9Uvd4VY2swaf0xCol0PMl6p6Jpo7FAOP6Ag=="},"history":[{"date":"2026-09-08","rank":1293,"score":90.5,"trust_score":26.6,"evidence_grade":"D","stars":13048}],"events":[{"date":"2026-09-08","type":"listed","reason_code":"listed","label":"Newly Listed","short_label":"New","tone":"positive","detail":"First tracked at rank #1293"}],"recent_changes":[{"date":"2026-09-08","type":"listed","reason_code":"listed","label":"Newly Listed","short_label":"New","tone":"positive","detail":"First tracked at rank #1293"}]}