classifier.dev MCP MCP server

An official MCP server provided by classifier.dev that allows AI agents to perform zero-shot text classification and URL scraping. It enables sorting text into custom labels with calibrated confidence, scraping public web pages for content analysis, and generating structured answers, all accessible via a standard HTTP endpoint without requiring an API key for free usage.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by classifier.dev

MCP endpoint (Streamable HTTP)

https://classifier.dev/mcp

Vendor documentation

What you can do with it

Classify text inputs into custom labels with confidence scores
Scrape public URLs and extract content for classification
Route or filter large batches of text data efficiently
Generate structured answers from state and questions

Tools advertised by the last live check:

classify_texts
classify_dimensions
classify_multi_label
count_labels
review_uncertain

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http classifier-dev-mcp https://classifier.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add classifier-dev-mcp --url https://classifier.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable classifier-dev-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "classifier-dev-mcp": {
      "url": "https://classifier.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "classifier-dev-mcp": {
      "type": "streamableHttp",
      "url": "https://classifier.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start classifier-dev-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "classifier-dev-mcp": {
      "type": "http",
      "url": "https://classifier.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http classifier-dev-mcp https://classifier.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "classifier-dev-mcp": {
      "url": "https://classifier.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "classifier-dev-mcp": {
      "serverUrl": "https://classifier.dev/mcp"
    }
  }
}

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