Connect Desvela ARD Registry — free preflight(domain) and your agent gets 4 tools, among them crawler_block_test, preflight, search. It answers at https://registry.desvela.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 10 September 2026; the last check, on 19 October 2026, succeeded.
What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
crawler_block_test | What the domain's CDN really does, as opposed to what its robots.txt says. Sends each AI crawler's real user-agent at the homepage and compares the response against a browser: a site can allow GPTBot in robots.txt and still have its CDN ans Inputs: domain |
preflight | What a domain publishes for AI agents before you touch it: ai-catalog.json (ARD), llms.txt, agents.md, and its robots.txt directives for AI bots (GPTBot, ClaudeBot, Google-Extended…). Served from the Desvela ARD index when fresh (<7 days), Inputs: domain |
search | Natural-language search over what Desvela has indexed: agents, MCP servers, registries — the same index as POST /search. Returns catalog entries per the ARD spec. When nothing matches, returns referrals: other ARD-conformant registries you Inputs: text |
watch | Subscribe to a domain: get a signed webhook (X-Desvela-Signature, HMAC-SHA256) when what it publishes for AI agents changes — ai-catalog.json entries added/changed/gone, llms.txt or agents.md edited or removed, robots.txt AI-bot directives Inputs: domain, webhook_url |
Every block below points at https://registry.desvela.dev/mcp. Pick your client and copy.
claude mcp add --transport http desvela-ard-registry-free-prefli https://registry.desvela.dev/mcp
{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://registry.desvela.dev/mcp"]
}
}
}{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"url": "https://registry.desvela.dev/mcp"
}
}
}{
"servers": {
"desvela-ard-registry-free-prefli": {
"type": "http",
"url": "https://registry.desvela.dev/mcp"
}
}
}{
"context_servers": {
"desvela-ard-registry-free-prefli": {
"url": "https://registry.desvela.dev/mcp"
}
}
}{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"serverUrl": "https://registry.desvela.dev/mcp"
}
}
}{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"url": "https://registry.desvela.dev/mcp"
}
}
}name: Desvela ARD Registry — free preflight(domain)
version: 0.0.1
schema: v1
mcpServers:
- name: Desvela ARD Registry — free preflight(domain)
type: streamable-http
url: https://registry.desvela.dev/mcp{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"httpUrl": "https://registry.desvela.dev/mcp"
}
}
}{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"type": "http",
"url": "https://registry.desvela.dev/mcp"
}
}
}{
"mcpServers": {
"desvela-ard-registry-free-prefli": {
"url": "https://registry.desvela.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fregistry.desvela.dev%2Fmcp&type=streamable_http&id=desvela-ard-registry-free-prefli&name=Desvela%20ARD%20Registry%20%E2%80%94%20free%20preflight%28domain%29
It answered our last check on 19 October 2026 in 69 ms. Over 6 checks since 10 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by desvela.dev and served from registry.desvela.dev, the vendor's own domain: https://registry.desvela.dev/mcp.
4, as returned by the server's own tools/list on 11 September 2026: crawler_block_test, preflight, search, watch.
It answered our last check on 19 October 2026 in 69 ms. Over 6 checks since 10 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://registry.desvela.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: dev.desvela. Endpoint host: registry.desvela.dev. ARD identifier: urn:air:dev.desvela:mcp:registry.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.