Arachne MCP Server

49 MCP toolsfor web scraping, browser automation, computer vision, audio transcription, RAG,Social Sentiment Research, andVisual Regression Testing (VRT) — the Oito Olhos (Spider's Eight Eyes)— all through the Arachne API.

Backed byArachne. Works withClaude Desktop,Cursor,Codex CLI,Hermes, and any MCP client.

Create one atarachne.seu.pet/dev(Free plan: 500 req/month).

{ "mcpServers": { "arachne": { "command": "python3", "args": ["-m", "arachne_mcp"], "env": { "ARACHNE_API_KEY": "arn_your_key_here", "ARACHNE_API_URL": "https://arachne.seu.pet" } } } }

pip install arachne-mcp export ARACHNE_API_KEY="arn_your_key_here" python3 -m arachne_mcp

🪟 Windows install (works out of the box)

arachne-mcpis apure-Python client(onlyhttpx) — no Linux-only dependencies, no WSL required. Install it on Windows with:

Then configure it in any MCP client using the console-script entry point (arachne-mcpis on your PATH after install):

{ "mcpServers": { "arachne": { "command": "arachne-mcp", "args": [], "env": { "ARACHNE_API_KEY": "arn_your_key_here", "ARACHNE_API_URL": "https://arachne.seu.pet" } } } }

⚠️Do notpointcommandat a Linux path (e.g./home/user/.../venv/bin/arachne-mcp) — that only exists on the machine where the Arachne server runs. On Windows (and any other client machine) use the pip package + API key: the server does all heavy work (browser, VLM, vision, RAG) behindhttps://arachne.seu.pet.

The MCP server is athin proxy: it forwards each tool call to the Arachne API (POST /api/mcp/proxy), which executes the tool server-side and returns the result. This keeps the client light (onlyhttpx), while all heavy work — browser, VLM, vision, RAG — runs on the Arachne server.

Claude Desktop / Cursor / Codex │ MCP (stdio) ▼ arachne-mcp (thin proxy, 49 tools) │ HTTP + X-API-Key ▼ Arachne API (arachne.seu.pet) → executes tool → returns JSON

- API key auth: every request carriesX-API-Key(create at/dev)
- Rate limitsenforced server-side per plan
- No code runs client-side — the proxy only forwards arguments

Give your AI the ability to read the web. Fetches URLs as clean markdown with 9 fallback strategies. Handles tweets, YouTube, arXiv, PDFs, and regular pages.

Extracts information from YouTube videos and channels using the YouTube Data API.

Retrieves transcripts from YouTube videos for content analysis and processing.

YouTube transcript API for AI agents - pay per successful transcript via x402 (USDC on Base); failed videos are never charged

Download video and audio from YouTube and other platforms using the yt-dlp tool.

Download video and audio content from various websites like YouTube, Facebook, and Tiktok using yt-dlp.

Download video and audio from various platforms like YouTube, Facebook, and TikTok using yt-dlp.

Remote MCP that scrapes customer comments and reviews from Reddit, YouTube, Amazon, TikTok, app stores, and 25+ other platforms, then turns them into ad angles and customer language for marketers.

AI-powered Business Helper that analyzes thousands of YouTube videos to extract precise insights, timestamps, and actionable strategies. Instantly find the most relevant moments from podcasts, interviews, and lectures—turning long-form content into targeted business intelligence.

100% Free AI audio and video transcription with speaker diarization and YouTube support.