`list_sources`

22 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
algenta-mcp https://api.algenta.ai/mcp	answers-mcp	140
relin-mcp https://relin.app/mcp	answers-mcp	52
SeaWeb https://api.seaweb.tech/mcp	answers-mcp	43
pipeworx-gateway https://gateway.pipeworx.io/nasa-eonet/mcp	answers-mcp	37
pipeworx-gateway https://gateway.pipeworx.io/spaceflight-news/mcp	answers-mcp	35
proofite https://proofite.com/mcp	answers-mcp	28
licium https://www.licium.ai/api/mcp	answers-mcp	26
licium https://www.licium.ai/mcp	answers-mcp	26
l0g.fr https://l0g.fr/api/mcp	answers-mcp	21
iGaming Tools MCP https://mcp.i-gaming.tools/mcp	answers-mcp	17
mukoko-news https://news.mukoko.dev/mcp	answers-mcp	16
nichedb https://nichedb.dev/mcp	answers-mcp	15
statcite https://statcite.com/mcp	answers-mcp	12
sugra-api https://app.sugra.ai/mcp	answers-mcp	11
Starwell https://starwell.dev/api/starwell/mcp	answers-mcp	11
horizon https://horizon.alchemylab.sh/api/mcp	answers-mcp	11
gankdat https://gankdat.com/mcp	answers-mcp	9
flightfinder-safety https://himaxym.com/mcp	answers-mcp	9
academyinfo-mcp https://academyinfo-mcp-433006350023.asia-northeast3.run.app/mcp	answers-mcp	8
carbon.fyi https://www.carbon.fyi/api/mcp	answers-mcp	6
newsflash https://newsflash.sh/mcp	answers-mcp	5
domduck-public https://domduck.com/api/mcp/public	answers-mcp	3

22 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.