Alterlab MCP server
{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server@latest"
],
"env": {
"ALTERLAB_API_KEY": "<alterlab_api_key>",
"ALTERLAB_API_URL": "https://..."
}
}
}
}{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server@latest"
],
"env": {
"ALTERLAB_API_KEY": "<alterlab_api_key>",
"ALTERLAB_API_URL": "https://..."
}
}
}
}{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server@latest"
],
"env": {
"ALTERLAB_API_KEY": "<alterlab_api_key>",
"ALTERLAB_API_URL": "https://..."
}
}
}
}{
"servers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server@latest"
],
"env": {
"ALTERLAB_API_KEY": "${input:alterlab_api_key}",
"ALTERLAB_API_URL": "${input:alterlab_api_url}"
}
}
},
"inputs": [
{
"id": "alterlab_api_key",
"type": "promptString",
"description": "Alterlab api key",
"password": true
},
{
"id": "alterlab_api_url",
"type": "promptString",
"description": "Alterlab api url",
"password": true
}
]
}{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server@latest"
],
"env": {
"ALTERLAB_API_KEY": "<alterlab_api_key>",
"ALTERLAB_API_URL": "https://..."
}
}
}
}file .mcp.json (in your project root)file claude_desktop_config.jsonfile ~/.cursor/mcp.jsonfile .vscode/mcp.jsonfile ~/.codeium/windsurf/mcp_config.jsoninstall npx -y alterlab-mcp-serverversion 1.8.0
What it does
AlterLab MCP server enables scraping of websites with automatic anti-bot bypass, JavaScript rendering, and structured data extraction. It is for developers building AI agents or applications that need reliable web data access, particularly from sites protected by Cloudflare or similar services.
- Scrape e-commerce product pages and extract structured pricing and availability data for comparison or monitoring.
- Render and extract content from JavaScript-heavy single-page applications to feed data into AI analysis.
- Take screenshots or capture PDFs of websites for documentation, archival, or visual analysis.
Tools this server exposes
| Tool | Does |
|---|---|
| alterlab_scrape | Scrape a URL and return its content in markdown, text, HTML, or JSON format, with automatic tier escalation for anti-bot protection and optional JavaScript rend |
Before you enable it
An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.