`air_quality`

7 servers reported a tool by this name when we called them. Names are chosen by whoever wrote the server, so two tools sharing a name do not have to do the same thing. We record what was reported, not what it does.

server	result when we called it	tools
The Stall https://the-stall.intuitek.ai/mcp	answers-mcp	302
livedatalink https://livedatalink.ai/mcp	answers-mcp	294
pipeworx-gateway https://gateway.pipeworx.io/open-meteo/mcp	answers-mcp	37
pipeworx-gateway https://gateway.pipeworx.io/openweather/mcp	answers-mcp	35
infranode https://mcp.infranode.dev/mcp	answers-mcp	12
skill-audit https://eltociear-skill-audit.hf.space/mcp	answers-mcp	11
tokenguard https://eltociear-tokenguard.hf.space/mcp	answers-mcp	9

7 of these answered an MCP handshake on the day we checked. That is not a promise the tool works, only that the server was running and told us the tool existed.