calc-eval — ISSN digit shape MCP Tool

• Claude Code ISSN digit shape calc-eval run in your project directory
• Claude Desktop ISSN digit shape calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
• Cursor ISSN digit shape calc-eval ~/.cursor/mcp.json
• VS Code ISSN digit shape calc-eval .vscode/mcp.json
• Zed ISSN digit shape calc-eval ~/.config/zed/settings.json
• Windsurf ISSN digit shape calc-eval ~/.codeium/windsurf/mcp_config.json
• Cline ISSN digit shape calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
• Gemini CLI ISSN digit shape calc-eval ~/.gemini/settings.json
• Grok ISSN digit shape calc-eval .mcp.json (in your project root)
• ChatGPT ISSN digit shape calc-eval Settings → Connectors → Advanced → Developer mode
• Claude.ai ISSN digit shape calc-eval Settings → Connectors → Add custom connector
• LangChain ISSN digit shape calc-eval pip install langchain-mcp-adapters

Fastest route

claude mcp add --transport http issn-ok https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/issn-ok/mcp

Other tools on this server

• issn-ok
• 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