PubNub MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 449 installs a week from npm. Last commit 22 Jul 2026.
PubNub Model Context Protocol MCP Server for Cursor and Claude
We read the source, 20 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
ARG AMPLITUDE_API_KEY=""
"process.env.AMPLITUDE_API_KEY": JSON.stringify(process.env.AMPLITUDE_API_KEY || ""),
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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 mcp-server -- npx -y @pubnub/mcp
{
"mcpServers": {
"mcp-server": {
"args": [
"-y",
"@pubnub/mcp"
],
"command": "npx"
}
}
}
[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@pubnub/mcp"]
{
"mcpServers": {
"mcp-server": {
"args": [
"-y",
"@pubnub/mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"mcp-server": {
"args": [
"-y",
"@pubnub/mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
PUBNUB_API_KEY (Your PubNub API Key. Required for all operations related to your account/keyset), PUBNUB_PUBLISH_KEY (Optional PubNub publish key for real-time operations), PUBNUB_SUBSCRIBE_KEY (Optional PubNub subscribe key for real-time operations), PUBNUB_USER_ID (Optional variable that can be provided to change the User ID for the SDK (real-time) operations (default: pubnub-mcp)), PUBNUB_EMAIL ((Deprecated - use API Key instead) Your PubNub account email. Required for all operations related to your account/keyset), PUBNUB_PASSWORD ((Deprecated - use API Key instead) Your PubNub account password. Required for all operations related to your account/keyset).
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.