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MCP live MCP 2026-07-28 streamable-http

Crawler IP Verifier - real Googlebot or fake

dev.workers.pathwren.www/crawler-ip-verifier

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
428ms
last probe
Tools
9
callable
Resources
4
readable
Prompts
1
available
Primary URL
https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck
Score: 100/100
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
9 tools, 4 resources, 1 prompts returned.
pass 3 or more catalogue items 10/10
14 items in total; 3 or more earns these points.
pass Describes itself 10/10
100 characters; more than 30 earns these points.

Tools · 9

no_arguments_report_the_crawler_ip_ranges_this_host_mirrors

TAKES NO ARGUMENTS. POST {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_report_the_crawler_ip_ranges_this_host_mirrors","arguments":{}}} to https://www.pathwren.workers.d…

verify_my_address

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"verify_my_address","arguments":{}}} — POST that exact body to https://www.pathwren.workers.dev/mcp/netcheck and the answer is the addres…

whoami

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — POST that exact body to https://www.pathwren.workers.dev/mcp/netcheck and you are done: free, read-only, no A…

example

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"example","arguments":{}}} — POST that exact body to https://www.pathwren.workers.dev/mcp/netcheck and you are done: free, read-only, no …

verify_batch

FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_report_the_crawler_ip_ranges_this_host_mirrors","arguments":{}}} — Check up to 500 addresses aga…

lookup_prefix

FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_report_the_crawler_ip_ranges_this_host_mirrors","arguments":{}}} — Give a CIDR and get every pub…

export_ip_acl

FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_report_the_crawler_ip_ranges_this_host_mirrors","arguments":{}}} — Turn a set of operators into …

verification_methods

FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_report_the_crawler_ip_ranges_this_host_mirrors","arguments":{}}} — Per crawler: whether the oper…

range_stats

Takes no arguments. Safe to call. Deterministic. Touches no third party. Per source: prefix counts, total addresses and /24-equivalents, smallest and largest prefix, the publishing URL and when it was…

Resources · 4

operator-ip-ranges

The 1,887 IPv4 and 1,056 IPv6 prefixes behind every tool here, by source, with each source's URL and fetch time.

https://www.pathwren.workers.dev/ip-ranges/all.json
ai-crawler-index

Each crawler's operator, verification method, published-ranges URL and expected user-agent substring.

https://www.pathwren.workers.dev/data/agents.json
mirror-status

When each operator list was last fetched, whether the bytes changed, and which fetches failed.

https://www.pathwren.workers.dev/status.json
changes.json

The since-cursor feed for everything this host publishes: operator IP-range lists that gained or lost prefixes, upstreams that failed or recovered, crawler records added or edited. Read `cursor` from …

https://www.pathwren.workers.dev/changes.json?since=0

Prompts · 1

start_here

Takes no arguments. Safe to call. Deterministic. Touches no third party. The first call worth making against crawler-ip-verifier: run whoami (no arguments) to see what this host can tell you about you…

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://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "crawler_ip_verifier_-_real_googlebot_or_fake": {
      "url": "https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck",
      "transport": "streamable-http"
    }
  }
}