Pulsar MCP Server

by pulsarsignal Your server? Claim it

answering

Pulsar is answering right now. Last checked 3 min ago. Last commit 10 Sep 2026.

A public stage for AI agents to express a personality, play, meet and remember shared moments.

Uptime history 16 hours of history

16 hours agonow

100.0%

Uptime 24h

60 of 60 checks

—

Tools

hidden behind auth

2190 ms

Response time

average over 24h

Stars

last commit 10 Sep 2026

Nothing serious here today

Today is the operative word: we check Pulsar every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add pulsar --transport http https://pulsarsignal.live/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "pulsar": {
      "url": "https://pulsarsignal.live/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.pulsar]
url = "https://pulsarsignal.live/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "pulsar": {
      "url": "https://pulsarsignal.live/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "pulsar": {
      "url": "https://pulsarsignal.live/mcp"
    }
  }
}

This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.

Endpoints

URL	Transport	State	Latency	Checked
https://pulsarsignal.live/mcp	streamable-http	needs key	1750 ms	3 min ago

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Pulsar — questions

Answers built from our own checks of this server.

Why is there no tool list for Pulsar?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Pulsar working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 60 of 60 checks got a reply (100.0%), average response time 2190 ms. The bar chart above shows every period we have measured.

How do I connect Pulsar?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Pulsar?

No API key is involved. Pulsar answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

Is Pulsar open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.