citation — BCP 47 language tag shape MCP Tool
citation
(citation) is one of 31 tools on the
BCP 47 language tag shape
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call citation from your client
- Claude Code BCP 47 language tag shape citation run in your project directory
- Claude Desktop BCP 47 language tag shape citation ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor BCP 47 language tag shape citation ~/.cursor/mcp.json
- VS Code BCP 47 language tag shape citation .vscode/mcp.json
- Zed BCP 47 language tag shape citation ~/.config/zed/settings.json
- Windsurf BCP 47 language tag shape citation ~/.codeium/windsurf/mcp_config.json
- Cline BCP 47 language tag shape citation ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI BCP 47 language tag shape citation ~/.gemini/settings.json
- Grok BCP 47 language tag shape citation .mcp.json (in your project root)
- ChatGPT BCP 47 language tag shape citation Settings → Connectors → Advanced → Developer mode
- Claude.ai BCP 47 language tag shape citation Settings → Connectors → Add custom connector
- LangChain BCP 47 language tag shape citation pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http bcp47-ok https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/bcp47-ok/mcpOther tools on this server
- bcp47-ok
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- compatibility
- status-catalog
- iana-zones
- web-fetch
- fetch-status
- github-repo-shape
- weather-hint
- memory-key-count
- file-path-ok
- browser-url-ok
- think-steps
- search-query-len
- hn-front-count
- lib-docs-hint
- playwright-url-ok
- figma-url-shape
- jira-key-shape
- geo-hint
- calc-eval
- wiki-title-ok
- agent-tool-index
- people-search-index
- agent-ads-index
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.