Unleash MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 1 032 installs a week from npm. Last commit 11 Sep 2026.
MCP server for managing Unleash feature flags
Today is the operative word: we check Unleash MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add unleash-mcp -- npx -y @unleash/mcp
{
"mcpServers": {
"unleash-mcp": {
"args": [
"-y",
"@unleash/mcp"
],
"command": "npx"
}
}
}
[mcp_servers.unleash-mcp]
command = "npx"
args = ["-y", "@unleash/mcp"]
{
"mcpServers": {
"unleash-mcp": {
"args": [
"-y",
"@unleash/mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"unleash-mcp": {
"args": [
"-y",
"@unleash/mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
UNLEASH_BASE_URL (Your Unleash instance URL (local or hosted)), UNLEASH_PAT (Your Unleash Personal Access Token (PAT) for authentication), UNLEASH_DEFAULT_PROJECT (The default project ID the MCP should use).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.