# BuiltWith, pay as you go: Cached company technology API

> The BuiltWith Domain API provides XML, JSON, CSV, XLSX access to the technology information of a website which includes all technical information as found on detailed lookups at builtwith.com and additional meta data where available.

BuiltWith's cached company technology API on its Pay per call with x402 plan. It costs $49.50 per 1,000 companies. It returns 11 of the 13 key fields we check: Technology, Categories, When and where seen, Spend, About, Size, Places, Traffic, Rank, Contact, Social.
The median plan costs $12.45 per 1,000. This plan costs less than 20% of the 105 priced plans.

- This page: https://datacircle.dev/cached-company-technology-apis/builtwith/pay-as-you-go
- Get it: https://api.builtwith.com/x402-api
- Its API docs: https://api.builtwith.com/x402-api
- Sold by: BuiltWith (https://builtwith.com)
- Checked: 2026-10-18

## In the answer

- Completeness: 85%
- Technology: ✓
- Categories: ✓
- When and where seen: ✓
- Spend: ✓
- About: ✓
- Size: ✓
- Places: ✓
- Traffic: ✓
- Rank: ✓
- Contact: ✓
- Social: ✓

## Price

- $ per 1,000: $49.50
- Billing: pay as you go

## Aggregators

- Aggregators: Deepline: your key free for 50,000 calls a month, then $5.00 per 1,000, paid, no fixed price

## Charges

- Per: call
- Also pays for: nothing else

## In their words

- Their pitch: The BuiltWith Domain API provides XML, JSON, CSV, XLSX access to the technology information of a website which includes all technical information as found on detailed lookups at builtwith.com and additional meta data where available.

## Data

- Freshness: stored
- Keep data: store report or API data privately for internal use, not the entire database
- Use data: a limited, non-exclusive, non-transferable, non-sublicensable license to access and use the Service solely for internal business purposes. You must not: republish material from this website, reproduce or distribute BuiltWith data publicly, store the entire database in any electronic retrieval system, use automated systems or software to extract data from the Service except through authorized APIs, attempt to replicate the BuiltWith database, resell, redistribute, sublicense, or commercially exploit BuiltWith data [...] Users may not access or use the Service for the purpose of building, enhancing, or maintaining a competing product or service [...] Use of the Service for competitive intelligence against BuiltWith or for development of a competing service is strictly prohibited. [...] Use of the Service for the purpose of benchmarking, evaluating, or developing a competing product or service is prohibited. [...] Telephone numbers provided by the Service must not be used for marketing purposes.

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## The call

- You send: domain. Optional: liveOnly
- Method: GET
- Path: /agent/domain

## About the plan

- Plan: Pay per call with x402
- Who can get it: businesses: BuiltWith does not provide or sell data services to consumers, no account or API key, paying from a USDC wallet on Base

## The 40 fields the plan's answer can hold

domain, technologies, technology category, technology description, technology first seen, technology last seen, technology confidence, paid technology, technology ID, parent technology, technology website, subdomains, technology spend, spend history, sales revenue, traffic rank, first indexed, last indexed, name, industry, location, registration numbers, social profiles, employee count, followers, product count, ecommerce category, referring subnet count, referring IP count, sitemap link count, tag manager tag counts, custom analytics counts, AI scores, time to first byte, page size, emails, phone numbers, contact name, contact job title, contact email

## BuiltWith's plans (9)

- [BuiltWith, pay as you go](https://datacircle.dev/cached-company-technology-apis/builtwith/pay-as-you-go/llms.txt): $49.50 per 1,000, 85% complete, stored
- [BuiltWith, top-up from $0.50](https://datacircle.dev/cached-company-technology-apis/builtwith/top-up-from-0-50/llms.txt): $50.00 per 1,000, 85% complete, stored
- [BuiltWith, $99 pack](https://datacircle.dev/cached-company-technology-apis/builtwith/99-pack/llms.txt): $49.50 per 1,000, 85% complete, stored
- [BuiltWith, $295 monthly](https://datacircle.dev/cached-company-technology-apis/builtwith/295-monthly/llms.txt): $147.50 per 1,000, 85% complete, stored
- [BuiltWith, $495 monthly](https://datacircle.dev/cached-company-technology-apis/builtwith/495-monthly/llms.txt): $24.75 per 1,000, 85% complete, stored
- [BuiltWith, $995 monthly](https://datacircle.dev/cached-company-technology-apis/builtwith/995-monthly/llms.txt): $9.95 per 1,000, 85% complete, stored
- [BuiltWith, $2,950 yearly](https://datacircle.dev/cached-company-technology-apis/builtwith/2950-yearly/llms.txt): $122.917 per 1,000, 85% complete, stored
- [BuiltWith, $4,950 yearly](https://datacircle.dev/cached-company-technology-apis/builtwith/4950-yearly/llms.txt): $20.625 per 1,000, 85% complete, stored
- [BuiltWith, $9,950 yearly](https://datacircle.dev/cached-company-technology-apis/builtwith/9950-yearly/llms.txt): $8.292 per 1,000, 85% complete, stored

## BuiltWith's calls (2)

- `GET /agent/domain`: [BuiltWith, pay as you go](https://datacircle.dev/cached-company-technology-apis/builtwith/pay-as-you-go/llms.txt)
- `GET /v26/api.json`: [BuiltWith, top-up from $0.50](https://datacircle.dev/cached-company-technology-apis/builtwith/top-up-from-0-50/llms.txt)

## BuiltWith's APIs (1)

- [BuiltWith: cached company technology API pricing, 9 plans](https://datacircle.dev/cached-company-technology-apis/builtwith/pay-as-you-go/llms.txt)

## BuiltWith: cached company technology API alternatives

- [Skrapp, $349 monthly, Enterprise 50K, GET /api/v3/companies/enrich](https://datacircle.dev/cached-company-technology-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-enrich/llms.txt): $13.96 per 1,000, 23% complete, stored
- [StackScan, $79 monthly, Business, POST /v1/tech-lookup/domains/batch](https://datacircle.dev/cached-company-technology-apis/stackscan/79-monthly-business-post-v1-tech-lookup-domains-batch/llms.txt): $15.80 per 1,000, 23% complete, stored
- [LeadMagic, $99 monthly](https://datacircle.dev/cached-company-technology-apis/leadmagic/99-monthly/llms.txt): $19.80 per 1,000, 15% complete, stored
- [The Swarm, $1,990 yearly](https://datacircle.dev/cached-company-technology-apis/the-swarm/1990-yearly/llms.txt): $66.333 per 1,000, 8% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-18.

- https://api.builtwith.com/domain-api
- https://api.builtwith.com/llms-full.txt
- https://api.builtwith.com/llms.txt
- https://api.builtwith.com/openapi.json
- https://api.builtwith.com/x402-api
- https://builtwith.com/all-products
- https://builtwith.com/faq
- https://builtwith.com/plans
- https://builtwith.com/terms
- https://kb.builtwith.com/general-questions/plans-and-pricing-explained
- https://payments.builtwith.com/v1/mpp/catalog