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