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Data provider, Company signals

BuiltWith

See exactly what technology any website runs, build lists of companies using a specific tool, map a company's related domains, and match company names to their websites, all inside Deep Research.

BYOK, runs on your own keyGet your key

How it works

Connect your BuiltWith key once in settings, then open SalesGPT and flip on the Deep Research toggle. Just ask in plain language, and Deep Research reaches for BuiltWith automatically whenever your request needs to know what technology a website runs or which companies use a given tool. You never touch a setting mid-chat.

What you can ask it to do

See a company's full tech stack

→“What technologies does shopify.com run — analytics, CMS, hosting, all of it?”
→“Profile the tech stack behind notion.so and monday.com and tell me what CRM and analytics tools they use.”

Find every company using a specific technology

→“Build me a list of companies running HubSpot, focused on US-based businesses.”
→“Who's using Klaviyo in the UK and Canada right now? Give me the live ones only.”

Spot competitor and partner technology to time your pitch

→“Find ecommerce sites still running Magento — they're prime targets for our migration pitch.”
→“Which companies use Segment alongside Salesforce? Those are my ideal accounts.”

Map a company's related and connected domains

→“Show me all the domains related to stripe.com so I know their full web footprint.”
→“What other websites and subdomains are connected to atlassian.com?”

Match a company name to its real website

→“What's the actual domain for a company just called 'Ramp'?”
→“Resolve 'Acme Logistics' to its website and give me the basic company details.”

Connect your key

1

Grab your API key from your BuiltWith dashboard.

2

Open Settings, Provider Keys in Fuse, find BuiltWith, and paste it in.

3

That is it. Deep Research starts using BuiltWith on your next request. Fuse encrypts the key and never exposes it to the agent.

Cost

BuiltWith runs on your own key, so it spends your BuiltWith credits, not Fuse credits.

Generated from the Fuse provider registry. Every connected provider gets a page like this.