devtools
LaunchDarkly MCP Integration for LangGraph
Connect LaunchDarkly to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.
Connect LaunchDarkly to LangGraph
Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.
Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with
--write=deny so LangGraph can inspect read-capable tools without receiving write access by default.
LaunchDarkly MCP Config for LangGraph
Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.
{
"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
Expose only LaunchDarkly instead of a broad multi-service tool list.
Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.
Start read-only, then opt into ask or allow for trusted workspaces.
LaunchDarkly Tools Visible to LangGraph
LangGraph sees stable MCP tool names generated from the LaunchDarkly integration catalog.
| MCP tool | Source function | Type | Description |
|---|---|---|---|
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. |