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BuiltWith API Basic List-Pass Purchase
x402
BuiltWith API Basic List-Pass Purchase is a paid API for AI agents from api.builtwith.com, paid per call via x402, $295/call, status unknown (last checked 2026-09-14).
Purchases a time-limited 'basic' access pass token for the BuiltWith List API, enabling keyword and technology report queries
Price / call$295
Success—
StatusUnknown
How this service works
BuiltWith API Overview
Output
Returns a one-time-shown pass token (passToken) for the basic tier, along with expiry date (2026-09-01), limits of 2 keyword reports and 2 technology reports, the payer wallet address, price confirmation ($295), and a security warning to store the token securely since it is only shown once.
Example use cases
Unlock tech stack research access
“Purchase a basic BuiltWith API pass for me so I can look up which websites are using specific technologies — I need the pass token to start querying.”
Competitor technology profiling setup
“I want to research what tech stack our competitors are running. Get me a basic BuiltWith list pass so I can run a couple of technology reports.”
Lead generation via keyword reports
“Set up BuiltWith API access at the basic tier so I can pull keyword-based lists of websites — buy the pass and return the token so my workflow can use it.”
Technical details
Endpoint
POSThttps://api.builtwith.com/x402/list-pass/basicWhen to prefer
Use this endpoint when you need programmatic access to BuiltWith's list API and do not yet have a valid pass token. This is the entry point for acquiring credentials before making keyword or technology report queries. Prefer this over manual BuiltWith subscription management when operating in an automated, agent-driven workflow that can handle crypto payments via x402.
Side effects
- Insufficient USDC balance in payer wallet — payment settlement fails
- Invalid or missing payer wallet address — request rejected
- Pass token lost after first display — cannot be retrieved again, requiring a new purchase
- Network or settlement timeout — payment may be deducted but token not returned
- Attempting to purchase when a valid pass already exists — may result in duplicate charge
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tier": "basic",
"payer": "0x0000000000000000000000000000000000000000",
"price": "$295",
"warning": "Store this pass token securely. It is shown only in this response.",
"expiresAt": "2026-09-01T00:00:00.000Z",
"passToken": "returned-once-after-settlement",
"keywordReportLimit": 2,
"technologyReportLimit": 2
}
}Tags
x402
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