Technology Stack Detection API
Detect 50+ technologies on any website. CMS, JS frameworks, analytics, hosting, CDN, payments. Confidence scores and evidence. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"tech-enrichment": {
"url": "https://tech-enrichment.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
curl "https://tech-enrichment.api.klymax402.com/api/detect?url=https://example.com"
# -> 402 Payment Required, with an x402 payment challenge in the response body
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
website_detect_tech_stack
Use this when you need to identify what technologies a website uses. Returns structured JSON with categorized detections, confidence levels, and evidence for each technology found.
Parameters
Example response:
{"technologies":[{"name":"React","category":"JS Framework","confidence":"high","evidence":"react-dom in bundle"},{"name":"Tailwind CSS","category":"CSS","confidence":"high","evidence":"tailwind classes in HTML"},{"name":"Vercel","category":"Hosting","confidence":"medium","evidence":"x-vercel-id header"}],"summary":{"totalDetected":8,"categories":{"JS Framework":2,"CSS":1,"Hosting":1,"Analytics":3,"Payments":1}}}
When to use: sales outreach (to personalize pitch by tech stack), competitive analysis, or security audits. Essential for qualifying leads by technology fit and understanding competitor architecture.
Not for: full company data (use company_enrich_from_domain), SEO analysis (use seo_audit_page), website content (use web_scrape_to_markdown).
Example agent prompts
- "Identify what technologies a website uses"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT