KosmoKrator

devtools

LaunchDarkly MCP Integration for LangChain

Connect LaunchDarkly to LangChain through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write Bearer token auth
Submit LaunchDarkly feedback View package source

Connect LaunchDarkly to LangChain

Bridge LangChain agents to local KosmoKrator integration tools through MCP or headless CLI calls.

Use the MCP gateway when the agent should discover tools, or wrap kosmo integrations:call for fixed chains. The gateway is local, scoped to this integration, and starts with --write=deny so LangChain can inspect read-capable tools without receiving write access by default.

LaunchDarkly MCP Config for LangChain

Keep the gateway scoped to the integration and operation class needed by the chain.

{
  "mcpServers": {
    "kosmokrator-launchdarkly": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=launchdarkly",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=launchdarkly --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only LaunchDarkly instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

LaunchDarkly Tools Visible to LangChain

LangChain sees stable MCP tool names generated from the LaunchDarkly integration catalog.

MCP toolSource functionTypeDescription
integration__launchdarkly__launchdarkly_list_flags launchdarkly.launchdarkly_list_flags Read List feature flags in a LaunchDarkly project. Returns flag keys, names, descriptions, and their on/off state per environment.
integration__launchdarkly__launchdarkly_get_flag launchdarkly.launchdarkly_get_flag Read Get detailed information about a specific LaunchDarkly feature flag, including targeting rules, variations, and per-environment state.
integration__launchdarkly__launchdarkly_toggle_flag launchdarkly.launchdarkly_toggle_flag Write Turn a LaunchDarkly feature flag on or off in a specific environment. Use this to enable or disable a feature flag.
integration__launchdarkly__launchdarkly_list_environments launchdarkly.launchdarkly_list_environments Read List all environments for a LaunchDarkly project. Returns environment keys, names, and their SDK keys for reference.
integration__launchdarkly__launchdarkly_list_projects launchdarkly.launchdarkly_list_projects Read List all LaunchDarkly projects. Returns project keys, names, and the number of environments in each project.
integration__launchdarkly__launchdarkly_get_project launchdarkly.launchdarkly_get_project Read Get detailed information about a specific LaunchDarkly project, including its environments and settings.
integration__launchdarkly__launchdarkly_get_current_user launchdarkly.launchdarkly_get_current_user Read Get information about the currently authenticated LaunchDarkly user. Useful for verifying API credentials.

Related LaunchDarkly Pages

LaunchDarkly CLIUse direct JSON commands instead of MCP discovery. LaunchDarkly MCPFull gateway reference and MCP tool names. KosmoKrator for LangChainClient-level gateway setup.