io.github.builtwith/builtwith

up checked 2026-11-11T04:39:28.216Z

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Publisher-provided title

BuiltWith

Publisher-provided description

Official BuiltWith tools for website technologies, company research, relationships, and trends.

Summary by lookupd

Looks up website technologies, company domains, relationships, trust scores, trends, and credit usage via BuiltWith APIs and payment tools.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http builtwith https://api.builtwith.com/mcp

Codex, remote (streamable-http)

codex mcp add builtwith --url https://api.builtwith.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "builtwith": {
      "url": "https://api.builtwith.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (showing 30 of 51)

Publisher-provided text

• mpp-catalog Discover Stripe card MPP payments without an existing BuiltWith account or API key. The smallest purchase is $0.50 for 10 API lookups. Guest access tokens defau
• mpp-purchase Buy API lookup credits or a one-off plan with Stripe MPP card payment. No BuiltWith API key required. Start without paymentCredential to get a 402 challenge; us
• mpp-data Use the temporary access_token returned by mpp-purchase without configuring an API key. Domain and change lookups spend one purchased API credit per domain. Lis
• domain-lookup Returns the live web technologies used on the root domain name.
• domain-api Domain API JSON lookup for technology and metadata by domain.
• domain-api-json Raw Domain API JSON lookup for technology and metadata by domain.
• change-api Change API JSON lookup for technology additions and removals by domain. Supports one or more comma-separated domains and optional natural language SINCE values
• relationships-api Relationships API JSON lookup for related websites by domain.
• free-api Free API JSON lookup for category/group counts by domain.
• company-to-url Company to URL API JSON lookup for domains from a company name.
• tags-api Tags API JSON lookup for related domains from IP or attributes.
• recommendations-api Recommendations API JSON lookup for technology recommendations by domain.
• redirects-api Redirects API JSON lookup for live and historical redirects by domain.
• keywords-api Keywords API JSON lookup for keyword data by domain.
• keywords-search-api Keyword Search API — find websites containing a specific keyword. Returns a list of matching domains and a NextOffset value for pagination. Costs API credits pe
• trends-api Trends API JSON lookup for technology trend data.
• product-api Product API JSON lookup for ecommerce product searches.
• trust-api Trust API JSON lookup for trust scoring by domain.
• vat-api VAT API JSON lookup for VAT, GST, CNPJ, ABN, and other publicly displayed company registration numbers associated with websites. Accepts 1–16 comma-separated do
• vat-types-api List every company registration type that the VAT API may return, including its code, friendly name, and description. This public endpoint requires no API key a
• whoami-api WhoAmI API JSON lookup for account limits, credit costs, privacy flags, max batch sizes, and endpoint inventory. Uses no API credits. Call this first to make ac
• usage-api Usage API JSON lookup for current credit balance (used, purchased, remaining). Uses no API credits.
• mcp-list-api Search and browse remote MCP servers in the BuiltWith MCP registry (v2). Requires a BuiltWith API key supplied as a bearer token. Provide search, category, or b
• mcp-list-categories List valid BuiltWith MCP registry category slugs, labels, and entry counts (v2). This public endpoint requires no API key and uses no API credits.
• list-api List API JSON lookup for websites using a primary technology. Requires an active BuiltWith plan. OTHERTECHS are subordinate filters and do not consume additiona
• payment-balance Check an existing account's API-credit balance through the saved-Stripe-method top-up service. This is not x402.
• payment-config Retrieve saved-Stripe-method account top-up limits, UTC monthly period, purchase increment, and idempotency rules. This is not x402.
• payment-purchase Charge an existing account's saved Stripe payment method and add account API credits. This is not x402. Requires the separately scoped Agent Billing Key, fixed
• vector-api Search BuiltWith technologies and categories by text query using vector similarity. Returns ranked results with similarity scores (0–1), descriptions, and categ
• ask-api Ask API lookup for natural language website list queries. OpenAI requests are served as preview results and do not commit full reports.

Details

• Version: 2.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 292 ms
• First indexed: 2026-11-10T05:17:30.984Z
• Last seen in registry: 2026-11-10T05:17:30.984Z
• Repository: https://github.com/builtwith/builtwith-mcp
• Website: https://api.builtwith.com/

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