{"data":{"slug":"scale3-labs-langtrace","name":"langtrace","tagline":"Open Telemetry based observability tool for LLM applications","github_url":"https://github.com/Scale3-Labs/langtrace","owner":"Scale3-Labs","repo":"langtrace","owner_avatar_url":"https://avatars.githubusercontent.com/u/110545750?v=4","primary_language":"TypeScript","stars":1228,"forks":126,"topics":["ai","datasets","evaluations","gpt","langchain","llm","llm-framework","llmops","observability","open-source","open-telemetry","openai","prompt-engineering","tracing"],"archived":false,"github_pushed_at":"2025-11-17T15:08:48+00:00","maintenance_label":"Slowing","stars_delta_30d":12,"url":"https://www.graphcanon.com/tools/scale3-labs-langtrace","markdown_url":"https://www.graphcanon.com/tools/scale3-labs-langtrace.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/scale3-labs-langtrace","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=scale3-labs-langtrace","description":"Langtrace 🔍 is an open-source,  Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics for popular LLMs, LLM frameworks, vectorDBs and more.. 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You can read about this license [here](https://www.apache.org/licenses/LICENSE-2.0).","github_created_at":"2024-03-30T23:49:41+00:00","created_at":"2026-07-07T17:42:58.862711+00:00","updated_at":"2026-08-21T00:00:46.317925+00:00","categories":[{"slug":"evaluation-observability","name":"Evaluation & Observability","url":"https://www.graphcanon.com/categories/evaluation-observability","markdown_url":"https://www.graphcanon.com/categories/evaluation-observability.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/evaluation-observability"}],"tags":[{"slug":"ai","name":"ai"},{"slug":"datasets","name":"datasets"},{"slug":"evaluations","name":"evaluations"},{"slug":"gpt","name":"gpt"},{"slug":"langchain","name":"langchain"},{"slug":"llm","name":"llm"},{"slug":"observability","name":"observability"},{"slug":"open-source","name":"open-source"}],"trust":{"provenance":{"is_fork":false,"github_id":779843396,"owner_type":"Organization","methodology":"github_public_v1","parent_repo":null,"near_duplicate_slugs":[]},"computed_at":"2026-08-21T00:00:44.842Z","maintenance":{"label":"Slowing","score":36,"methodology":"github_public_v1","releases_90d":0,"days_since_push":276,"last_release_at":"2025-04-17T23:33:28Z","stars_delta_30d":12,"open_issues_delta_30d":0},"security_summary":{"status":"no_lockfile","scanner":null,"low_count":0,"high_count":0,"last_scan_at":"2026-07-11T11:22:29.238Z","medium_count":0,"scan_profile":"none","critical_count":0}},"capability_facts":{"mcp":{"source":"repo_scan","observed_at":"2026-08-21T00:00:45.558Z","server_manifest":false},"scan":{"source":"repo_scan","observed_at":"2026-08-21T00:00:45.558Z"},"deploy":{"source":"dockerfile:Dockerfile","self_host":true,"observed_at":"2026-08-21T00:00:45.558Z","managed_saas":false},"has_cli":{"value":true,"source":"package.json:bin|scripts","observed_at":"2026-08-21T00:00:45.558Z"},"languages":{"value":["typescript","javascript"],"source":"github.language+package.json","observed_at":"2026-08-21T00:00:45.558Z"},"has_docker":{"value":true,"source":"dockerfile:Dockerfile","observed_at":"2026-08-21T00:00:45.558Z"},"license_spdx":{"value":"AGPL-3.0","source":"github.license","observed_at":"2026-08-21T00:00:45.558Z"}},"decision_facts":{"hosting":null,"pricing":null,"requirements":null,"constraints":null,"when_to_use":["When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial.","If your application involves vector databases alongside LLMs, Langtrace provides integrated observability which can help in evaluating how these data stores impact the overall system."],"when_not_to_use":["For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead.","When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value."],"source":"enrich:decision_facts","observed_at":"2026-07-12T01:53:04.279Z"},"constraint_facets":null,"decision_summary":[{"label":"Adopt for","value":"Langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework."}]}}