format_version: 1
name: langsmith
display_name: LangSmith (LangChain)
tier: 6
last_verified: "2026-04-05"
keywords:
  - "langsmith"
  - "langchain"
  - "LANGCHAIN_API_KEY"
  - "LANGSMITH_API_KEY"
  - "LANGCHAIN_TRACING_V2"
  - "api.smith.langchain.com"
  - "lsv2_"
patterns:
  - regex: 'lsv2_(pt|sk)_[a-f0-9]{32}_[a-f0-9]{10}'
    entropy_min: 4.0
    confidence: high
verify:
  method: GET
  url: https://api.smith.langchain.com/info
  headers:
    X-API-Key: "{KEY}"
  valid_status: [200]
  invalid_status: [401, 403]