Google tells you what exists. Faceabot tells you what holds up.
Email hostname only, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/email-host/mcp · website · measurements and detailsEmail shape, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/email-shape/mcp · website · measurements and detailsHostname shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/hostname-ok/mcp · website · measurements and detailsHostname shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/host-ok/mcp · website · measurements and detailsSNI hostname shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/sni-ok/mcp · website · measurements and detailsX-Forwarded-Host hostname, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/x-fwd-host/mcp · website · measurements and detailsIPv4 shape, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ipv4-ok/mcp · website · measurements and detailsIPv6 shape, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ipv6-ok/mcp · website · measurements and detailsmailto: shape, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/mailto-ok/mcp · website · measurements and detailsHostname label count
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/host-labels/mcp · website · measurements and detailsIPv4 or IPv6, address discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ip-version/mcp · website · measurements and detailsMAC address charset, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/mac-ok/mcp · website · measurements and detailsMAC address shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/mac-shape/mcp · website · measurements and detailscontent-address hex length, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/contentid-ok/mcp · website · measurements and detailsdid:ethr address shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/did-ethr/mcp · website · measurements and detailsValidate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.
Package npm :@postio/mcp · website · measurements and detailsVerify email addresses in real time and find business email addresses with live mailbox checks.
MCP endpoint :https://clearbounce.net/mcp · website · measurements and detailsemail-ish token count, text discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/emailish-n/mcp · website · measurements and detailsCheck whether an email address can receive mail — one address or a list — without sending to it.
MCP endpoint :https://api.kawaa.com/mcp · website · measurements and detailsemail-ish local@host shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/emailish-ok/mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Open reliability data · Add Faceabot to your AI · Help · Privacy · Terms