BuiltWith Tech Lookup MCP. Map the entire tech stack of any website instantly.
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…and any MCP-compatible client
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BuiltWith Tech Lookup provides universal website technology intelligence. It automatically detects a domain's full tech stack, identifying everything from the Content Management System (CMS) and analytics tools to hosting providers and specific JavaScript frameworks.
Your agent can map out complex digital infrastructures instantly.
What your AI agents can do
Get domain company info
Retrieves basic company details associated with a specific domain name.
Get domain keywords
Generates keyword profiles and search volume data for a specified domain.
Get domain relationships
Maps out the technical infrastructure relationships between domains.
Retrieve the full list of frameworks, CMS platforms, and services running on any website.
Determine a site's hosting provider, CDN, and underlying security architecture.
Discover connections between domains or track the current adoption trends of specific technologies.
Get company information, keyword profiles, and trust indicators for a given domain.
Ask AI about this MCP
Supported MCP Clients
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BuiltWith Tech Lookup: 8 Available Tools
These tools let you systematically analyze a domain’s infrastructure by getting company info, keywords, trust scores, and specific technology breakdowns.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using BuiltWith Tech Lookup on Vinkius019d8421get domain company info
Retrieves basic company details associated with a specific domain name.
019d8421get domain keywords
Generates keyword profiles and search volume data for a specified domain.
019d8421get domain relationships
Maps out the technical infrastructure relationships between domains.
019d8421get domain trust
Provides current trust indicators and reputation scores for a domain.
019d8421get free domain profile
Gets a basic overview of the technology categories used by a domain without using premium credits.
019d8421get tech domain lists
Finds lists of domains that have adopted a specific piece of web technology.
019d8421get tech trends
Shows the current adoption and usage trends for various technologies (e.g., React, Shopify).
019d8421lookup domain tech
Performs a deep lookup to identify the complete technology stack used by any given domain.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This server provides 8 capabilities that interface natively with Claude, ChatGPT, Cursor, and any MCP client. No middleware. No custom integration required.
Today, figuring out what powers a website is pure detective work.
If you're doing competitive research right now, the process is painful. You have to open up domain after domain and manually cross-reference details: checking the CMS signature in the source code, then using external tools for analytics data, and finally guessing which hosting provider they use based on headers. It's a dozen tabs, hours of copy/pasting, and half the time you miss something critical.
With this MCP, that entire process collapses into one conversation. You ask your agent to profile 'example.com'. The agent runs all necessary checks—from detecting their analytics tools to naming their CMS—and gives you a single, clean report of every piece of tech they're running. It’s pure intelligence.
The `get_tech_domain_lists` tool provides immediate competitive context.
Before this MCP, if you wanted to know how many other companies used the same platform as your competitor, you had to run dozens of manual searches using generic keyword combinations. It was a huge time sink and rarely gave a complete picture of market adoption.
Now, you simply ask your agent to find all domains running 'Shopify Plus'. The tool instantly pulls that list for you, showing the sheer scale of technology adoption across an entire industry segment.
What you can do with this MCP connector
You need to know what powers a competitor’s site—not just their marketing copy. This MCP gives your AI client instant access to the technology stack of any domain, letting you see exactly which CMS they use, what analytics trackers are running, or if they're hosted on a specific CDN. You can quickly profile everything from basic frameworks to complex advertising networks.
Because this data is so valuable for anything from competitive research to lead qualification, we built it into the Vinkius catalog so your agent never gets stuck trying to find an external API key; you just connect and start working. Your AI agent acts like a dedicated technical architect through natural conversation.
019d8421-6b05-73f4-8d5a-d3b31753ced6 
How BuiltWith Tech Lookup MCP Works
- 1 Subscribe to this MCP and input your BuiltWith API Key.
- 2 Tell your AI client which domain you want to analyze.
- 3 Your agent runs the lookup, returning a structured profile of all detected technologies.
The bottom line is: instead of visiting multiple technical audit sites, you ask one question and get an immediate, detailed report.
Who Is BuiltWith Tech Lookup MCP For?
This MCP is essential for anyone whose job involves analyzing digital assets at scale. It's built for the B2B sales rep who needs to qualify a lead based on their tech debt; the SEO analyst tracking competitor CMS usage; or the developer looking for migration opportunities.
They use it to compare rivals by running lookup_domain_tech across a list of target websites to map out tech parity and gaps.
On Tuesday afternoons, they analyze a prospect's domain using get_domain_company_info before calling, so they can reference the specific technology stack to tailor their pitch.
They research potential clients by running get_tech_trends to see if an industry (like e-commerce) is adopting a new framework, helping them identify service opportunities.
What Changes When You Connect
- Stop guessing about a competitor's backend. With
lookup_domain_tech, you get an immediate, comprehensive list of everything from their CMS (WordPress, Shopify) to their ad networks and hosting providers. - Improve lead qualification by checking tech compatibility first. Use
get_domain_company_infoto verify core business details before your agent even drafts the outreach message. - Track industry shifts accurately. By running
get_tech_trends, you see if a technology is gaining or losing traction, letting you guide market strategy instead of reacting to it. - Map out digital risk. Use
get_domain_relationshipsandget_domain_trusttogether to understand not only what a site uses, but how stable its infrastructure actually is. - Speed up the audit process immensely. You don't need to open 10 different technical sites; your agent does all the heavy lifting in one conversation.
Real-World Use Cases
A sales rep needs to qualify a new SaaS prospect.
The SDR asks their agent, 'What tech stack is AcmeCorp using?' The agent runs lookup_domain_tech and reports back that they are running an outdated CMS. This detail allows the SDR to skip generic talk track and immediately position the company's upgrade service.
A developer needs to build a new feature set.
The dev asks, 'What frameworks are my top five competitors using?' The agent uses get_tech_domain_lists combined with multiple lookup_domain_tech calls. This data helps the development team decide which modern framework will provide the best competitive edge.
An SEO analyst is tracking CMS adoption.
The analyst asks, 'Which domains are starting to switch off Magento?' The agent uses get_tech_domain_lists on Magento and compares it against other platforms, generating a report of industry movement.
A security researcher needs to map potential attack vectors.
The researcher asks the agent to check multiple target domains for infrastructure weaknesses. The agent uses get_domain_relationships and get_domain_trust sequentially, compiling a full risk assessment report.
The Tradeoffs
Searching tech stacks manually
Opening the domain in Google, then checking for common CMS signatures (like WordPress.com), and cross-referencing with SSL certificate data. It takes thirty minutes per site.
→
Instead, you let your agent run lookup_domain_tech on the target URL. In a single prompt, it returns all detected technologies, saving hours of manual detective work.
Confusing basic profiling with deep analysis
Calling only get_free_domain_profile and thinking you have a full picture. This tool misses high-value details like hosting provider or specific JS frameworks.
→
Always use the core function, lookup_domain_tech, for maximum detail. It provides the complete profile that basic checks miss.
Ignoring competitive relationship data
Only checking a domain's tech stack but ignoring its external connections. This leaves out vital context like who it talks to or what services it relies on.
→
Supplement the core lookup by running get_domain_relationships to see if there are underlying infrastructure dependencies you didn't know about.
When It Fits, When It Doesn't
Use this MCP if your goal is deep, technical intelligence—you need to know how a site works. If you only care about basic SEO keywords or general company contact info, the specialized tools like get_domain_keywords might suffice. However, if your workflow requires mapping multiple data points (e.g., tech stack + trust score + keyword profile), this MCP is necessary because it connects all those sources into one unified conversation flow. Don't use it if you just need a simple 'is the site online?' check; for that, basic pings will do fine. But if you are building any kind of market intelligence report or auditing system, this suite has everything you need.
Common Questions About BuiltWith Tech Lookup MCP
How does lookup_domain_tech work? +
It performs a deep scan to identify every layer of technology on a domain. It finds everything from the main CMS platform to minor JavaScript frameworks, providing a complete map.
Can I check tech trends with get_tech_trends? +
Yes, this tool shows you how popular certain technologies are right now. You can see if something like React is gaining ground or if an older system is fading out of use.
What's the difference between get_free_domain_profile and lookup_domain_tech? +
get_free_domain_profile gives you basic, high-level categories for free. lookup_domain_tech, however, runs a deeper check to deliver the full, granular profile including hosting and framework details.
How do I find out which domains use my tech? +
Use get_tech_domain_lists. You provide the technology name (like 'Magento'), and the tool returns a list of other domains that have adopted it, helping you map your market.
How do I handle authentication when using get_domain_company_info? +
You must provide a valid, active API key for all calls. The system validates this key before running the query; if the key is expired or incorrect, the tool will return an authorization error immediately.
What should I do if my request to lookup_domain_tech hits a rate limit? +
If you encounter a rate limit error, your agent needs to pause and retry the call after waiting. The API documentation provides specific guidelines for handling these limits to ensure uninterrupted profiling.
What type of infrastructure data does get_domain_relationships provide? +
It returns connections between a domain and other related digital properties or services. This tool helps map out the technical dependencies, showing how different parts of a site interact with third-party platforms.
Can I bulk check keywords using the get_domain_keywords tool? +
The tool is designed to process one domain at a time. For checking many domains, you should wrap your agent's workflow to run multiple, sequential calls for each keyword profile.
Multi-server workflows that include BuiltWith Tech Lookup MCP
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Screen Accelerator Applications Using MCP
10,000 applications received, companies verified, fake traction filtered , shortlist the real startups from the noise in hours, not weeks
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Tech stacks compared, market overlap mapped, duplicate startups flagged , catch two batch companies building the same product before Demo Day embarrasses everyone
Use it with your favorite AI tools
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