Registry Lag — how fast MCP directories reflect a new server

Down since Oct 23

app.rowb.registry-lag/reflectionv1.0.0 Domain verified

Checks whether an MCP server is listed in MCP directories right now, and how long the listing took.

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Website Registry entry

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Call this server's tools from your browser. Nothing to install.

https://registry-lag.rowb.app/mcp

Authorization (required)

Bearer API key. Free key at https://registry-lag.rowb.app/signup (50 checks/month, no card).

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

check_directory_lag

Check whether an MCP server name is listed in public MCP directories right now, and how long until it appeared (reflection lag).

namestring, required

server name fragment, 3-64 chars

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (2)

check_directory_lag

Check whether an MCP server name is listed in public MCP directories right now, and how long until it appeared (reflection lag).

Argument	Type	Description
name*	string	server name fragment, 3-64 chars

Input schema (JSON)

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "description": "server name fragment, 3-64 chars"
    }
  }
}