io.github.OpenCidian/opencidian
OpenCidian: open Chinese ↔ Vietnamese dictionary (Hán Việt, pinyin, character breakdown)
Is the OpenCidian MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-10.
Open Chinese-Vietnamese dictionary by Perxel: Hán Việt, pinyin, meanings, characters. Cited.
alive probed 2026-11-14 · unchanged since 2026-11-10 · HTTP 200
- Endpoint
- https://opencidian-mcp.perxel.com/mcp (streamable-http)
- Host
- opencidian-mcp.perxel.com
- Protocol
- 2025-11-25
- Reports itself as
- opencidian 0.3.0
- Capabilities
- prompts, tools
- Instructions
- 794 characters
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 2.6k tokens in Claude Opus 5.5, exact, measured 2026-11-10. With the Claude Code prefix mcp__…__ on each tool name: 2.6k. The o200k_base estimate is 1.6k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/OpenCidian/opencidian-mcp
- Website
- https://opencidian-mcp.perxel.com/llms.txt
- Registry
- active, updated 2026-11-10 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.63×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| suggest_correction | 669 | 410 | 26 % |
| lookup | 491 | 301 | 19 % |
| annotate_text | 334 | 205 | 13 % |
| search_meaning | 333 | 204 | 13 % |
| get_character | 295 | 181 | 11 % |
Compare this server with others.
More servers
Servers that mention dictionary or vietnamese.
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- Inoh app.inoh/inoh-mcp · needs auth
- com.am-lich/vietnamese-calendar · alive
- com.kasahorow/kasahorow · server error
- Localization Resource Integrity com.mcpscores/localization-resource-integrity · alive
- Nôm Na Việt — Hán Nôm Dictionary com.nomnaviet/han-nom · alive
- Pithflow com.pithflow/pithflow · needs auth
- Dream Interpretation MCP Server by RoxyAPI com.roxyapi/dreams · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.