Sapling MCP Server

Use Sapling's grammar checking, AI detection, paraphrasing, summarization, sentiment analysis, and language detection tools from Claude and other MCP-compatible assistants.

Setup

Create a Sapling API key from https://sapling.ai/docs/api/api-access. Node.js 18 or newer is required.

Claude Desktop

Add this to your Claude Desktop config:

{
  "mcpServers": {
    "sapling": {
      "command": "npx",
      "args": ["-y", "@saplingai/mcp-server"],
      "env": {
        "SAPLING_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Claude Code

claude mcp add --transport stdio --env SAPLING_API_KEY=YOUR_API_KEY sapling \
  -- npx -y @saplingai/mcp-server

Environment

• SAPLING_API_KEY: Required Sapling API key.
• SAPLING_API_BASE_URL: Optional API base URL. Defaults to https://api.sapling.ai.
• SAPLING_MCP_TIMEOUT_MS: Optional request timeout. Defaults to 120000.

Tools

• sapling_grammar_check: Grammar, spelling, punctuation, and style suggestions.
• sapling_spell_check: Spelling-focused suggestions.
• sapling_ai_detect: AI-generated text detection.
• sapling_rephrase: Paraphrase or transform text.
• sapling_summarize: Summarize text.
• sapling_sentiment: Sentiment analysis.
• sapling_language_detect: Language detection.

Development

npm ci
npm test