dev.workers.cybermax-tools.cybermax/dutyfinch
Dutyfinch
US tariff API + MCP: HTS duty rates, Section 301 lists. Keys $19/mo; 50 free calls a day.
alive probed 2026-10-11 · HTTP 200
4tools
532tokens in Claude Opus 5.5
576tokens in Claude Code
0.3 %of a 200k context window
323o200k_base estimate
218 msto initialize
127 msto list tools
- Endpoint
- https://dutyfinch.cybermaxtools.com/mcp?via=mcp-registry (streamable-http)
- Host
- dutyfinch.cybermaxtools.com
- Protocol
- 2025-11-25
- Reports itself as
- dutyfinch 1.0.0
- Capabilities
- tools
- Instructions
- 365 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://gitlab.com/CyberMax.tools/agent-tools
- Website
- https://cybermaxtools.com/store/dutyfinch-api/?s=mcp-registry-dutyfinch
- Registry
- active, updated 2026-10-10 · registry entry
- Reachable
- 8 of the last 8 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| lookup_hts_code | 111 | 34 % |
| search_hts | 89 | 28 % |
| section301_lists | 62 | 19 % |
| china_deal_status | 61 | 19 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-11 10:19 | alive | 203 ms | 4 | 532 | 323 |
| 2026-10-08 11:08 | alive | 161 ms | 4 | 532 | 323 |
| 2026-10-05 14:01 | alive | 218 ms | 4 | 532 | 323 |
| 2026-10-05 00:25 | alive | 164 ms | 4 | 323 | |
| 2026-10-04 10:00 | alive | 179 ms | 4 | 323 | |
| 2026-10-04 07:54 | alive | 190 ms | 4 | 323 | |
| 2026-10-03 20:33 | alive | 338 ms | 4 | 323 | |
| 2026-10-03 17:50 | alive | 229 ms | 4 | 323 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.workers.cybermax-tools.cybermax/dutyfinch)
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.