SupWriter MCP

Vermenschliche KI-Texte, erkenne KI-generierte Texte, formuliere um und korrigiere die Grammatik direkt in Claude, ChatGPT, Cursor, VS Code und Claude Code. Remote-MCP-Server von SupWriter; über 50 Sprachen.

Auf supwriter.com ansehen

Gehosteter MCP-Server

npx add-mcp 'https://supwriter.com/api/mcp'

Installiert in Claude Code, Codex, Cursor und mehr

Dokumentation

SupWriter MCP Server

A remote Model Context Protocol (MCP) server that brings SupWriter's tools inside any MCP-compatible AI client — Claude, ChatGPT, Cursor, Claude Code, VS Code, Codex, OpenCode, and other agentic apps. The assistant can humanize, paraphrase, grammar-check, and detect AI text in the conversation, authenticated with the user's own SupWriter account.

Landing page: supwriter.com/mcp.

Endpoint

  • MCP server URL: https://supwriter.com/api/mcp (remote, Streamable HTTP).

Tools

  • humanize — rewrite AI-generated text so it reads as human-written.
  • paraphrase — reword while preserving meaning (standard/formal/casual/academic/creative).
  • grammar_check — fix grammar, spelling, and punctuation.
  • detect_ai — return one AI score plus a per-label guide and sentence highlights. The guide is from one scoring model, not live queries to other detectors.

Two ways to connect

  1. OAuth sign-in (recommended for connector-based clients): Claude, ChatGPT (via Developer mode, paid plans), Cursor, VS Code. Add the URL above as a custom connector; sign in to SupWriter and approve the consent screen. Uses OAuth 2.1 (Dynamic Client Registration, PKCE, short-lived tokens).
  2. Direct API key (for CLIs / headless agents that don't do OAuth): Claude Code, Codex, OpenCode. Create a key under Settings → API & MCP (Pro or Ultra) and send it as an Authorization: Bearer sw_live_… header.

Both methods hit the same endpoint and draw on your plan's word credits.

Per-client setup guides

Billing

No separate MCP fee. MCP is live. Humanize costs 1 credit per input word. Paraphrase and grammar cost 1 credit per output word. Detection is free for paid plans in the web app. Free web users, and every plan over the API or MCP, are charged 1 credit per input word. API keys used for the direct MCP path are available on Pro and Ultra only.

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