citation — ISO 8601 duration shape MCP Tool
citation
(citation) is one of 31 tools on the
ISO 8601 duration 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 ISO 8601 duration shape citation run in your project directory
- Claude Desktop ISO 8601 duration shape citation ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor ISO 8601 duration shape citation ~/.cursor/mcp.json
- VS Code ISO 8601 duration shape citation .vscode/mcp.json
- Zed ISO 8601 duration shape citation ~/.config/zed/settings.json
- Windsurf ISO 8601 duration shape citation ~/.codeium/windsurf/mcp_config.json
- Cline ISO 8601 duration shape citation ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI ISO 8601 duration shape citation ~/.gemini/settings.json
- Grok ISO 8601 duration shape citation .mcp.json (in your project root)
- ChatGPT ISO 8601 duration shape citation Settings → Connectors → Advanced → Developer mode
- Claude.ai ISO 8601 duration shape citation Settings → Connectors → Add custom connector
- LangChain ISO 8601 duration shape citation pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http iso-duration https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/iso-duration/mcpOther tools on this server
- iso-duration
- 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.