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