# BuiltWith Redirects API

> BuiltWith Redirects API 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 redirect chain data for a given domain, showing where it redirects to or from

## Facts

- Endpoint: POST https://api.builtwith.com/agent/redirects
- 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-redirects-api-6cd0bb2e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_22Kh8pLYoYVzTOXnKVk6W

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-redirects-api-6cd0bb2e -d '<json body>'
```

Example prompt: Can you check what redirects are set up for stripe.com using BuiltWith's redirects data?

## When to prefer this

Use this endpoint when you need to programmatically discover redirect chains or forwarding behavior for a specific domain, especially in SEO audits, domain acquisition research, or competitive intelligence workflows where understanding traffic routing is important.

## Known failure modes

- Empty Results array if no redirect data is available for the domain
- Invalid or malformed domain input returns an error
- Domain not found in BuiltWith's database returns empty results
- Rate limiting or payment failure may block the request

## How this service works

BuiltWith API Overview

## Output

A JSON object with a Results array containing redirect information for the queried domain, including destination URLs and redirect chain details as available in 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-redirects-api-6cd0bb2e/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)