citation — HTTP 401 unauthorized MCP Tool
citation
(citation) is one of 31 tools on the
HTTP 401 unauthorized
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call citation from your client
- Claude Code HTTP 401 unauthorized citation run in your project directory
- Claude Desktop HTTP 401 unauthorized citation ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor HTTP 401 unauthorized citation ~/.cursor/mcp.json
- VS Code HTTP 401 unauthorized citation .vscode/mcp.json
- Zed HTTP 401 unauthorized citation ~/.config/zed/settings.json
- Windsurf HTTP 401 unauthorized citation ~/.codeium/windsurf/mcp_config.json
- Cline HTTP 401 unauthorized citation ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI HTTP 401 unauthorized citation ~/.gemini/settings.json
- Grok HTTP 401 unauthorized citation .mcp.json (in your project root)
- ChatGPT HTTP 401 unauthorized citation Settings → Connectors → Advanced → Developer mode
- Claude.ai HTTP 401 unauthorized citation Settings → Connectors → Add custom connector
- LangChain HTTP 401 unauthorized citation pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http http-401 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-401/mcpOther tools on this server
- http-401
- 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.