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Crawl4ai2vectordb

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MCP server for crawling web documentation and storing it in a Supabase vector database.

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About

MCP server for crawling web documentation and storing it in a Supabase vector database.

README

MCP server for crawling web documentation and storing it in a Supabase vector database. Credits: craw4ai and Cole Medin's mcp server.

Responsibility: ingestion only — crawl, chunk, embed, store. No search, no reranking, no Neo4j.

Tools

Tool Description
crawl_single_page Crawl one URL and store its content
smart_crawl_url Auto-detect URL type (sitemap / txt / webpage) and crawl accordingly
get_available_sources List all sources stored in the database
delete_source Delete a source and all its content from the database

Setup

cp .env.example .env
# fill in OPENAI_API_KEY, MODEL_CHOICE, SUPABASE_URL, SUPABASE_SERVICE_KEY
uv sync

Running

stdio (recommended — Claude Code manages the process):

Add to your MCP config:

{
  "mcpServers": {
    "crawl4ai2vectordb": {
      "type": "stdio",
      "command": "uv",
      "args": ["run", "python", "-u", "src/server.py"],
      "cwd": "/path/to/mcp_crawl4ai2vectordb"
    }
  }
}

or

{
  "mcpServers": {
    "crawl4ai2vectordb": {
      "type": "sse",
      "url": "http://localhost:8051/sse"
    }
  }
}

SSE (manual startup, for multi-client use):

TRANSPORT=sse uv run python -u src/server.py

Optional features

Env var Default Effect
USE_CONTEXTUAL_EMBEDDINGS false Prepend LLM-generated context to each chunk before embedding (improves retrieval accuracy, costs more)
USE_AGENTIC_RAG false Extract code blocks and store them separately in code_examples table

from github.com/utaschulz1/mcp_crawl4ai2vectordb

Installing Crawl4ai2vectordb

This server has no published package — it is built from source. Open the repository and follow its README.

▸ github.com/utaschulz1/mcp_crawl4ai2vectordb

FAQ

Is Crawl4ai2vectordb MCP free?

Yes, Crawl4ai2vectordb MCP is free — one-click install via Unyly at no cost.

Does Crawl4ai2vectordb need an API key?

No, Crawl4ai2vectordb runs without API keys or environment variables.

Is Crawl4ai2vectordb hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Crawl4ai2vectordb in Claude Desktop, Claude Code or Cursor?

Open Crawl4ai2vectordb on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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