Lets agents manage LaunchDarkly feature flags and related resources from a locally hosted server.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add launchdarkly --env API_KEY='<API_KEY>' -- npx -y --package @launchdarkly/mcp-server -- mcp start --api-key '{{config.API_KEY}}'~/.codex/config.toml
[mcp_servers.launchdarkly]
command = "npx"
args = ["-y", "--package", "@launchdarkly/mcp-server", "--", "mcp", "start", "--api-key", "{{config.API_KEY}}"]
env = { API_KEY = "<API_KEY>" }
# codex mcp add launchdarkly --env API_KEY='<API_KEY>' -- npx -y --package @launchdarkly/mcp-server -- mcp start --api-key '{{config.API_KEY}}'~/.cursor/mcp.json
{
"mcpServers": {
"launchdarkly": {
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"{{config.API_KEY}}"
],
"env": {
"API_KEY": "<API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"launchdarkly": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"{{config.API_KEY}}"
],
"env": {
"API_KEY": "<API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"launchdarkly": {
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"{{config.API_KEY}}"
],
"env": {
"API_KEY": "<API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"launchdarkly": {
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"{{config.API_KEY}}"
],
"env": {
"API_KEY": "<API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"launchdarkly": {
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"{{config.API_KEY}}"
],
"env": {
"API_KEY": "<API_KEY>"
}
}
}
}Environment variables
API_KEY
Replace the placeholders with your own credentials and keep them out of version control.