`validate_email`

9 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
ia-qa-toolbox https://www.ia-qa.com/mcp	answers-mcp	152
qiniso https://qiniso.qinisolabs.workers.dev/mcp	answers-mcp	56
misarmail https://api.misar.io/mail/mcp	answers-mcp	54
toolforte https://toolforte.com/api/mcp/mcp	answers-mcp	40
eu-verify https://data.greeneris.io/mcp	answers-mcp	19
validation-api https://validation-api.dropcoin.workers.dev/mcp	answers-mcp	6
fabtally-valid https://valid.fabtally.com/mcp	answers-mcp	5
email-validator-api https://api.lazy-mac.com/email-validator/mcp	answers-mcp	4
Validate Email Address MCP Server https://deva.dillilabs.com/mcp	answers-mcp	1

9 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.