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Agent Signal MCP Server

by dan24ou-cpu Your server? Claim it
not responding

Agent Signal is listed as active in the registry but did not answer our last check. 59 installs a week from npm. It exposes 3 tools. Last commit 17 Apr 2026.

Collective intelligence for AI shopping agents — product intel, deals, and more

The author archived this repository on GitHub, meaning it is no longer maintained.

Installs per day peak 64 · avg 15 · +3% w/w
a month agotoday
Uptime history 91 days of history · worst day 0%
91 days agonow
0.0%
Uptime 24h
0 of 91 checks
3
Tools
read from the server
379 ms
Response time
average over 24h
59
Installs / week
npm and PyPI

Agent Signal does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

run in your terminal
claude mcp add agent-signal --transport http https://agent-signal-production.up.railway.app/mcp
Settings → Connectors → Add custom connector, then paste this address
https://agent-signal-production.up.railway.app/mcp
~/.codex/config.toml
[mcp_servers.agent-signal]
url = "https://agent-signal-production.up.railway.app/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "agent-signal": {
      "url": "https://agent-signal-production.up.railway.app/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-signal": {
      "type": "http",
      "url": "https://agent-signal-production.up.railway.app/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

add
add
Adds two numbers and returns the sum.
echo
echo
Echoes the provided text back to the caller.
server
server_time
Returns the current server time (ISO 8601, UTC).

Endpoints

URLTransportStateLatencyChecked
https://agent-signal-production.up.railway.app/mcp streamable-http answering 379 ms 13 min ago

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Agent Signal — questions

Answers built from our own checks of this server.

What can Agent Signal do?
It exposes 3 tools, read directly from the server on our last check. Among them: add, echo, server_time. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Agent Signal working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 379 ms. The bar chart above shows every period we have measured.
Is Agent Signal still maintained?
The author archived this repository on GitHub, meaning it is no longer maintained. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
The registry lists Agent Signal as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Agent Signal?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Agent Signal need an API key?
No. Agent Signal completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How many people use Agent Signal?
The npm package agent-signal was installed 59 times in the last week. Week over week that is +3%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Agent Signal open source?
The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at agent-signal-production.up.railway.app, which runs on its operator's own terms.