`list_sets`

6 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
pipeworx-gateway https://gateway.pipeworx.io/scryfall/mcp	answers-mcp	35
pipeworx-gateway https://gateway.pipeworx.io/tcgdex/mcp	answers-mcp	35
pokemon-tcg-pocket-catalog https://pocket.hologallery.app/mcp	answers-mcp	11
marketing-skills-directory https://marketingskills.directory/wp-json/mkt/v1/mcp	answers-mcp	7
iconserve https://iconserve.icons-for-agents.workers.dev/mcp	answers-mcp	3
iconserve https://icons-for-agents.site/mcp	answers-mcp	3

6 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.