`list_series`

8 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
statistics-of-the-world https://statisticsoftheworld.com/api/mcp	answers-mcp	11
afriref https://afriref.dev/mcp	answers-mcp	11
asiaref https://asiaref.dev/mcp	answers-mcp	10
ausref https://ausref.dev/mcp	answers-mcp	10
euroref https://euroref.dev/mcp	answers-mcp	10
latamref https://latamref.dev/mcp	answers-mcp	10
mearef https://mearef.dev/mcp	answers-mcp	10
usaref https://usaref.dev/mcp	answers-mcp	10

8 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.