Agent Access Check
Check if a website will block your AI agent and find its llms.txt, MCP or OpenAPI door.
| Endpoint | https://accesscheck.cloudforbots.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.1 |
| Now | 4 tools · grade A (100) · pin ts_abadaf7633508d5e7cf70134acece3b1 · protocol 2025-06-18 |
| First / last listed | 2026-10-25 07:15 UTC / 2026-10-25 07:15 UTC |
| Grade over time | 2026-10-25: A (100), 4 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: check_agent_access find_agent_alternative check_many usage_and_upgrade
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_disal params: url* |
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. params: url* |
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. params: urls* |
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. params: none |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.