# BuiltWith Agent Recommendations

> BuiltWith Agent Recommendations is a paid API for AI agents from api.builtwith.com, paid per call via x402, $0.0495/call, status unknown (last checked 2026-09-14).

Returns technology stack and vendor recommendations for a given domain by analyzing what technologies the site is built with

## Facts

- Endpoint: POST https://api.builtwith.com/agent/recommendations
- Price: $0.0495/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/builtwith-agent-recommendations-6e984072
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wjwoz-BhRcMC7hy26l1G3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability builtwith-agent-recommendations-6e984072 -d '<json body>'
```

Example prompt: Can you look up what technologies and platforms shopify.com is built with — I want to know their CMS, analytics tools, hosting, and any ecommerce infrastructure they're using.

## When to prefer this

Choose this endpoint when you need to identify the specific technologies, platforms, and vendors powering a given website — especially for competitive intelligence, sales prospecting by tech stack, or technical due diligence. Prefer this over generic web scraping when you want structured, categorized technology data rather than raw HTML content.

## Known failure modes

- Domain not found or not indexed by BuiltWith returns an empty Results array
- Invalid domain format (e.g. including URL path or protocol) causes a validation error
- Domain with no detectable technologies returns minimal or empty results
- Rate limiting or payment issues result in HTTP 402 or 429 errors
- Very new or obscure domains may have no data available yet

## How this service works

BuiltWith API Overview

## Output

A JSON object with a Results array containing detected technologies, platforms, and vendor recommendations associated with the queried domain, including details on CMS, analytics, hosting, ecommerce, advertising, and other web technology categories inferred from BuiltWith's database.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "maxLength": 253,
   "minLength": 1,
   "description": "Domain name to research, for example example.com. Do not include a URL path."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "Results": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/builtwith-agent-recommendations-6e984072/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.builtwith.com](https://www.zero.xyz/host/api.builtwith.com/llms.txt)