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Registry Lag — how fast MCP directories reflect a new server

app.rowb.registry-lag/reflectionVersion 1.0.0

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

Status

Responds682 msAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.
Last checked
Nov 14, 2026, 13:38 UTC
Latency
682 ms
Remotes responding
1 of 1
Sign-in
API key
Hosting
Hosted outside the EU (detected)
Registry data as of
Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP
https://registry-lag.rowb.app/mcpResponds682 ms
No sign-in

Claude Code

claude mcp add --transport http reflection https://registry-lag.rowb.app/mcp --header 'Authorization: Bearer <YOUR_TOKEN>'

Replace <YOUR_TOKEN> before running.

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: reflection
Remote MCP server URL: https://registry-lag.rowb.app/mcp
This server expects the header Authorization.

Cursor

{
  "mcpServers": {
    "reflection": {
      "url": "https://registry-lag.rowb.app/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Replace <YOUR_TOKEN> before running.

VS Code

code --add-mcp '{"name":"reflection","type":"http","url":"https://registry-lag.rowb.app/mcp","headers":{"Authorization":"Bearer <YOUR_TOKEN>"}}'

Replace <YOUR_TOKEN> before running.

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Tools

2 tools

Tools of Registry Lag — how fast MCP directories reflect a new server
Read-only
Idempotent
Open world
check_directory_lagCheck whether an MCP server name is listed in public MCP directories right now, and how long until it appeared (reflection lag).Not declaredNot declaredNot declaredNot declared
get_reportNames checked so far with run counts and first/last seen timestamps.Not declaredNot declaredNot declaredNot declared

Details

Registry status
Active
Published
Sep 26, 2026
Updated
Sep 26, 2026
Website
https://registry-lag.rowb.app/⁠ (opens in a new tab)
Repository
Not given
Categories
Uncategorized
GDPR
Not declared

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