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MCP live MCP 2025-03-26 streamable-http

Registry Lag — how fast MCP directories reflect a new server

app.rowb.registry-lag/reflection

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

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
811ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://registry-lag.rowb.app/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
99 characters; more than 30 earns these points.

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).

get_report

Names checked so far with run counts and first/last seen timestamps.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://registry-lag.rowb.app/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "registry_lag_\u2014_how_fast_mcp_directories_reflect_a_new_server": {
      "url": "https://registry-lag.rowb.app/mcp",
      "transport": "streamable-http"
    }
  }
}