PlainGrade for Claude.ai

dev.workers.mike-tusa.plaingrade-api/plaingrade-api

English readability scores (Flesch, Flesch-Kincaid, Fog, SMOG) and text stats. Text never stored.

client:Claude.ai transport:streamable-http tools:1

Install PlainGrade in Claude.ai

Settings → Connectors → Add custom connector

https://plaingrade-api.mike-tusa.workers.dev/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

score_readability

PlainGrade in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

PlainGrade MCP server