LangSmith MCP Server

# Smithery configuration file: https://smithery.ai/docs/config#smitheryyaml

startCommand:
  type: stdio
  configSchema:
    # JSON Schema defining the configuration options for the MCP.
    type: object
    required:
      - langsmithApiKey
    properties:
      langsmithApiKey:
        type: string
        description: Your Langsmith API key
      langsmithWorkspaceId:
        type: string
        description: Optional workspace ID for API keys scoped to multiple workspaces
      langsmithEndpoint:
        type: string
        description: Optional custom endpoint URL (for self-hosted or EU region)
  commandFunction:
    # A JS function that produces the CLI command based on the given config to start the MCP on stdio.
    |-
    (config) => {
      const env = {
        LANGSMITH_API_KEY: config.langsmithApiKey
      };
      if (config.langsmithWorkspaceId) {
        env.LANGSMITH_WORKSPACE_ID = config.langsmithWorkspaceId;
      }
      if (config.langsmithEndpoint) {
        env.LANGSMITH_ENDPOINT = config.langsmithEndpoint;
      }
      return {
        command: 'langsmith-mcp',
        args: [],
        env: env
      };
    }
  exampleConfig:
    langsmithApiKey: lsv2_pt_1234567890
    langsmithWorkspaceId: your_workspace_id
    langsmithEndpoint: https://api.smith.langchain.com