The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Detectzestack MCP listing page.
An MCP (Model Context Protocol) server that lets AI agents detect technology stacks, analyze security headers, inspect SSL certificates, look up DNS records, and scan for vulnerabilities on any website.
Add to .mcp.json in your project root (or ~/.claude/.mcp.json for global):
Add to .cursor/mcp.json in your project:
Add to ~/.codeium/windsurf/mcp_config.json:
Either:
DETECTZESTACK_API_KEY, orRAPIDAPI_KEY.Instead of RapidAPI, you can use API.market or a direct API key:
API.market:
Direct API Key:
Provider priority: RAPIDAPI_KEY > APIMARKET_KEY > DETECTZESTACK_API_KEY
| Tool | Description | Credits |
|---|---|---|
detect_tech_stack | Detect all technologies on a website | 1 |
check_technology | Check if a site uses a specific technology | 1 |
lookup_by_technology | Find domains using a specific technology | 1 |
check_security_headers | Grade security headers (A+ to F) | 1 |
check_ssl_certificate | Inspect SSL/TLS certificate details | 1 |
dns_lookup | DNS records + email security (SPF/DMARC/DKIM) | 1 |
scan_vulnerabilities | CVE/CPE vulnerability scan | 1 |
compare_stacks | Compare tech stacks of 2-10 sites | 1 per URL |
site_profile | Full combined profile (Ultra+ plan) | 3 |
Once configured, ask your AI agent:
| Plan | Requests/Month | Price |
|---|---|---|
| Basic | 100 | Free |
| Pro | 1,000 | $9/mo |
| Ultra | 10,000 | $29/mo |
| Mega | 50,000 | $79/mo |
View pricing (same plans on RapidAPI)
MIT