`list_collections`

28 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
justblogged-mcp https://justblogged.com/mcp	answers-mcp	45
pipeworx-gateway https://gateway.pipeworx.io/govinfo/mcp	answers-mcp	36
pipeworx-gateway https://gateway.pipeworx.io/iconify/mcp	answers-mcp	34
alloverart-shop https://allover.art/mcp	answers-mcp	31
StatelessServer https://firestore.googleapis.com/mcp	answers-mcp	25
Grabblist https://mcp.grabbitapp.com/api/mcp	answers-mcp	23
prxhub https://prxhub.com/api/mcp	answers-mcp	19
releases https://mcp.releases.sh/mcp	answers-mcp	16
nichedb https://nichedb.dev/mcp	answers-mcp	15
demo-st https://demo.st/mcp	answers-mcp	13
lmk-today https://lmk.today/api/ucp/mcp	answers-mcp	13
kismet-catalog https://mcp.kismet.travel/mcp	answers-mcp	13
safevertical https://dailystudio.app/mcp	answers-mcp	12
ecoaloha https://ecoaloha.com/mcp	answers-mcp	11
sos-battery-mcp https://sos-battery.sk/mcp	answers-mcp	11
a16z speedrun talent network https://mcp.speedrun-talent-network.com/mcp	answers-mcp	10
memxus https://mcp.memxus.com/mcp	answers-mcp	9
25karats https://www.25karats.com/mcp	answers-mcp	8
smasher-studio https://www.smasher.studio/mcp/mcp	answers-mcp	8
dc-api-mcp https://api.dc.library.northwestern.edu/api/v2/mcp	answers-mcp	8
skill-of-skills https://skills.911fund.io/api/mcp	answers-mcp	6
com.lowtoxgear/storefront https://mcp.lowtoxgear.com/mcp	answers-mcp	5
Remote Jobs Center https://remotejobscenter.com/mcp	answers-mcp	5
rumors-lines https://rumors.app/api/mcp	answers-mcp	4
besot-catalogue https://besot.com/catalogue/mcp	answers-mcp	4
besot-catalogue https://mcp.besot.com	answers-mcp	4
Ecommerce Prompts https://prompts-mcp.xpay.sh/mcp	answers-mcp	4
AQUAVIEW MCP Server https://mcp.aquaview.org/mcp	answers-mcp	4

28 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.