Technographics MCP server

@pipeworx/technographics

What a website is built with, read from the page itself. Keyless.

Part of Pipeworx — an MCP gateway connecting AI agents to 1576+ live data sources.

Tools

• tech_detect(url) — the stack a site loads: ecommerce platform, payments, CMS, JS framework, analytics, marketing automation, chat, ad pixels, CDN, web server, visitor-identification tools. Each detection carries the evidence that produced it.
• techdetectcoverage() — every technology the detector recognises, by category, and what it cannot see.

The route taken, and the licence reasoning

We wrote our own signatures. We did not use a Wappalyzer ruleset. That is the whole licence story and it is the part a future maintainer will need:

Wappalyzer relicensed off MIT before going commercial and every maintained fork inherited the copyleft. An MIT wrapper does not change the licence of the database it consumes, so "use the MIT one" is not the escape it looks like.

What src/signatures.ts contains instead is our own expression of publicly observable facts — that Shopify sets a shopifyy cookie, that Cloudflare answers with cf-ray, that Next.js emits NEXTDATA__. Those facts are not anyone's property; a particular curated database of them is. No GPL code or data is used, imported, or vendored.

What that costs: ~167 technologies across 29 categories, where a commercial set covers tens of thousands. That trade is stated in every response rather than hidden.

Two honest limits, carried on every response

manager injects client-side is invisible — and for this category that is a specific, large blind spot, not a rounding error, because tag managers are exactly how marketing tools get installed. A site showing only "Google Tag Manager" may be running a dozen tools underneath it.

• JavaScript is not executed. We read the HTML the server returned. Anything a tag

be outside the signature set. techdetectcoverage() exists so a negative can be checked before it is trusted.

• Absence is not evidence of absence. A technology missing from an answer may simply

Evidence, not booleans

Every detection returns the string that matched — cookie shopifyy, response header x-vercel-id: …, resource https://js.stripe.com/v3. A detector whose answers cannot be checked is one people stop trusting the first time it is wrong, and during development this caught a real bug: vercel.com reported Mintlify because the page merely names Mintlify in a customer logo. Patterns now key on what a technology emits, never on a product name in prose.

Fetching a caller-supplied URL, safely

This tool fetches an address the caller chose, which is the one shape that turns a data gateway into someone's proxy into private space. So: http/https only, standard ports only, and private, loopback, link-local (including cloud metadata at 169.254.169.254), CGNAT and multicast addresses are refused. Redirects are followed manually with every hop re-checked — a public URL that 302s to the metadata endpoint is the actual attack, and a first-hop-only check does not stop it. Response bodies are capped at 1.5 MB.

Source

The live website. No third-party API, no key, no vendor.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "technographics": {
      "url": "https://gateway.pipeworx.io/technographics/mcp"
    }
  }
}

What this endpoint actually serves

Shortened. The full README is on GitHub.