Google tells you what exists. Faceabot tells you what holds up.
urn:uuid shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-urn/mcp · website · measurements and detailsUUID URN shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-urn-ok/mcp · website · measurements and detailsurn:uuid lowercase, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-urn2/mcp · website · measurements and detailsURN NID shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/urn-ok/mcp · website · measurements and detailsISBN URN shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-uri/mcp · website · measurements and detailsISSN URN shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/issn-uri/mcp · website · measurements and detailsUUID Base58 shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-b58/mcp · website · measurements and detailsUUID Crockford-32 shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-b32/mcp · website · measurements and detailsUUID no-hyphen lowercase, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-compact/mcp · website · measurements and detailsShort-UUID charset, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/shortuuid-ok/mcp · website · measurements and detailsUUID no-hyphen 32-hex, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-nhex/mcp · website · measurements and detailsCOMB sequential UUID layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/comb-ok/mcp · website · measurements and detailsreverse COMB UUID layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/comb-rev/mcp · website · measurements and detailsGoogle UUID timeuuid layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/guuid-ok/mcp · website · measurements and detailsshort-uuid sid charset, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/sid-ok/mcp · website · measurements and detailsUUID v1 time layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid1-layout/mcp · website · measurements and detailsUUID v2 DCE layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid2-ok/mcp · website · measurements and detailsUUID v5 name layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid5-layout/mcp · website · measurements and detailsUUID v8 custom layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid8-ok/mcp · website · measurements and detailsUUID v3 MD5-name layout, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid3-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
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