MCP server

Crawler IP Verifier - real Googlebot or fake

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

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

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

Working at last checkAbout 3,482 tokens per request once connected9 tools

Website

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

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 9
Token cost: About 3,482 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http crawler-ip-verifier https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.crawler-ip-verifier]
url = "https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck"

Gemini CLI

{"mcpServers":{"crawler-ip-verifier":{"httpUrl":"https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck"}}}

Cursor

{"mcpServers":{"crawler-ip-verifier":{"url":"https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck"}}}

VS Code

{"servers":{"crawler-ip-verifier":{"type":"http","url":"https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck"}}}

Antigravity

agy mcp add crawler-ip-verifier https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"crawler-ip-verifier","server_url":"https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"crawler-ip-verifier","server_url":"https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/netcheck"}

Tools

example ~410 tokens
{"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 API key, no account, no consent prompt, nothing for you to invent, and what comes back is this serve
export_ip_acl ~390 tokens
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 a config you can paste: nginx geo, nginx allow/deny, Apache, HAProxy, a Cloudflare firewall expressi
lookup_prefix ~247 tokens
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 published operator prefix that contains it, is contained by it, or partially overlaps it — the check fo
no_arguments_report_the_crawler_ip_ranges_this_host_mirrors ~637 tokens
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.dev/mcp/netcheck — the answer is the state of every crawler-operator prefix list this host mirrors —
range_stats ~149 tokens
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 last fetched; plus prefixes published by more than one operator. This is the sizing and freshness i
verification_methods ~273 tokens
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 operator publishes IP ranges, documents reverse DNS, or publishes no verification method at all — with t
verify_batch ~384 tokens
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 against every mirrored operator prefix list in one call. Returns, per address, the matching prefix, the
verify_my_address ~595 tokens
{"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 address you are calling from, checked against every operator-published prefix list this host mirrors with
whoami ~397 tokens
{"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 API key, no account, no consent prompt, nothing for you to invent, and what comes back describes YOU,

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