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