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Agent Access Check MCP Server

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answering

Agent Access Check is answering right now. Last checked 2 min ago. It exposes 4 tools.

Check if a website will block your AI agent and find its llms.txt, MCP or OpenAPI door.

Uptime history 22 hours of history
22 hours agonow
100.0%
Uptime 24h
80 of 80 checks
4
Tools
read from the server
243 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Agent Access Check every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add accesscheck --transport http https://accesscheck.cloudforbots.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "accesscheck": {
      "url": "https://accesscheck.cloudforbots.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.accesscheck]
url = "https://accesscheck.cloudforbots.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "accesscheck": {
      "url": "https://accesscheck.cloudforbots.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "accesscheck": {
      "url": "https://accesscheck.cloudforbots.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

agent
check_agent_access
Before an agent browses or fetches a site, check if it will get in. Fetches the URL as an AI agent and as a browser, detects bot challenges (CAPTCHAs, DataDome, PerimeterX and other bot walls), reads robots.txt rules for GPTBot/ChatGPT-User/ClaudeBot/Claude-User/PerplexityBot and others, and looks for agent doors (llms.txt, MCP, OpenAPI). Returns verdict: open | challenged | blocked | robots_disallowed | unreachable, plus advice. Read-only. Use it before an automated web task, not for pages you already fetched successfully.
find_agent_alternative
Find a machine-friendly way into a site instead of scraping its HTML: llms.txt, /.well-known/mcp.json, agents.json, openapi.json, ai-plugin.json, and MCP URLs listed in llms.txt. Read-only.
many
check_many
Run check_agent_access on up to 10 URLs at once (counts as 1 call). Use it to pick which sources an agent can actually use.
usage
usage_and_upgrade
Show today's usage for your key or IP and the $9/month upgrade link. Free tier: 50 calls/day. Not metered.

Endpoints

URLTransportStateLatencyChecked
https://accesscheck.cloudforbots.com/mcp streamable-http answering 215 ms 2 min ago

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Agent Access Check — questions

Answers built from our own checks of this server.

What can Agent Access Check do?
It exposes 4 tools, read directly from the server on our last check. Among them: check_agent_access, check_many, find_agent_alternative, usage_and_upgrade. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Agent Access Check working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 80 of 80 checks got a reply (100.0%), average response time 243 ms. The bar chart above shows every period we have measured.
How do I connect Agent Access Check?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Agent Access Check need an API key?
No. Agent Access Check completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Agent Access Check?
It answers our handshake in 243 ms on average, which is faster than 53% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.