dev.desvela/registry
Desvela ARD Registry — free preflight(domain)
What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.
alive probed 2026-10-07 · HTTP 200
4tools
1.4ktokens in Claude Opus 5.5
1.4ktokens in Claude Code
0.7 %of a 200k context window
846o200k_base estimate
925 msto initialize
119 msto list tools
- Endpoint
- https://registry.desvela.dev/mcp (streamable-http)
- Host
- registry.desvela.dev
- Protocol
- 2025-11-25
- Reports itself as
- dev.desvela/registry 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://desvela.ai/census/
- Registry
- active, updated 2026-07-20 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| crawler_block_test | 264 | 31 % |
| watch | 226 | 27 % |
| preflight | 205 | 24 % |
| search | 151 | 18 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-07 11:06 | alive | 2.1 s | 4 | 1.4k | 846 |
| 2026-10-05 13:57 | alive | 925 ms | 4 | 1.4k | 846 |
| 2026-10-05 00:24 | alive | 755 ms | 4 | 846 | |
| 2026-10-04 10:00 | alive | 932 ms | 4 | 846 | |
| 2026-10-04 07:53 | alive | 1.0 s | 4 | 846 | |
| 2026-10-03 20:33 | alive | 1.1 s | 4 | 846 | |
| 2026-10-03 17:50 | alive | 187 ms | 4 | 846 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.desvela/registry)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.