Signals Api Mcp

Name: Signals Api Mcp
Author: LLM Mart

No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.

An MCP server that gives Claude / Cursor / any MCP client AI signals data: today's signals, what changed, and ranked AI models & repositories.

No API key needed for the free tier. Single file, Python standard library only — no pip install.

What it gives an agent

Tool	What it returns
`daily_signals`	Today's 4 signals — one from each core source (GitHub, Hugging Face, YouTube, Silicon Valley news), each linking to the original
`what_changed`	Deltas since the previous snapshot: new entries, entities no longer seen, rank movers
`top_models`	Hugging Face models with rank, rank movement and momentum, plus a ready-to-cite sentence
`top_repos`	GitHub repositories, same shape
`archive_days`	Which daily editions exist (for citing a specific date)

Every ranked row carries a citation string, so an agent can cite the number instead of inventing one. Entities whose number cannot be derived are published as unranked with the reason — we would rather return "not ranked" than a made-up value.

Use it without installing anything (hosted endpoint)

There is also a hosted MCP endpoint, so no download and no local Python is needed — point any MCP client that speaks streamable HTTP at:

https://data.jiangzhang.ca/signals4/mcp

It is published in the official MCP Registry as ca.jiangzhang.api/signals-api-mcp and serves the same five tools as the single-file version. A quick check with curl:

curl -s -X POST https://data.jiangzhang.ca/signals4/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -A 'my-agent/1.0' \
  --data '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

(The User-Agent header matters here too — see the CDN note further down.)

Install

Download mcp_server.py anywhere (e.g. ~/mcp/signals/mcp_server.py).
Add it to your MCP client config:

{
  "mcpServers": {
    "signals": {
      "command": "python3",
      "args": ["/absolute/path/to/mcp_server.py"]
    }
  }
}

Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows). Restart the client and the five tools appear.

Requires Python 3.9+. No dependencies, no key, no signup.

Try it without an MCP client

echo '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"daily_signals","arguments":{}}}' \
  | python3 mcp_server.py

Free tier vs the paid feed

This server reads the free endpoints, which cover one edition a day, 4 sources. If your agent needs more than that, there is a paid feed:

8 sources instead of 4 (adds arXiv, LMSYS Arena, hot-topic aggregation, hardware/chips)
4 updates a day instead of one daily edition (email / WebPush / API)
full history and machine-readable archives, with a stable API key
BASIC — CA$9.90/month — Core 4 sources, 18 boards × Top 3 per board, one morning push email (08:00 Beijing). Subscribe: https://data.jiangzhang.ca/signals4/buy?plan=basic
PLUS — CA$29.90/month — All 8 sources, choose push method and times (4×/day), Top 3 per board, plus API access to today's signals and stats. Subscribe: https://data.jiangzhang.ca/signals4/buy?plan=plus
BUSINESS — CA$129.90/month — PLUS, plus your own content and quantity per board (3–10), searchable history and full export. Subscribe: https://data.jiangzhang.ca/signals4/buy?plan=business

Attributed landing page (no plan chosen yet): → https://data.jiangzhang.ca/signals4/go?to=landing&src=mcp_github

Pay once instead of subscribing

There is also a one-time option (no subscription, no renewal): the compiled dataset bundle (single JSONL, indexed SQLite, tidy daily entity CSV), refreshed daily — https://buy.stripe.com/00w28r4W08qq8CcecHgw008

The free endpoints stay free — this repo will not start requiring a key.