`list_chains`

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/blockscout/mcp	answers-mcp	39
pipeworx-gateway https://gateway.pipeworx.io/chainlist/mcp	answers-mcp	34
ophis https://mcp.ophis.fi/mcp	answers-mcp	14
gulltoppr https://mcp.gulltoppr.dev/mcp	answers-mcp	12
btw https://btw.space/mcp?utm_source=mcp-registry	answers-mcp	10
stocks-on-chain https://stocksonchain.io/mcp	answers-mcp	7

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.