# does-site-use-klaviyo

> does-site-use-klaviyo is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Checks whether a given website uses Klaviyo email-marketing technology by fingerprinting its HTML and response headers, returning a yes/no result with evidence.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/klaviyo?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/does-site-use-klaviyo-7bb72e4f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hDemsTU01PNJ9Dm-BrQLA

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 does-site-use-klaviyo-7bb72e4f
```

Example prompt: Can you check whether allbirds.com is using Klaviyo for their email marketing?

## When to prefer this

Use this endpoint when you need a fast, inexpensive ($0.01) single-technology check for Klaviyo specifically on a given domain. Prefer this over broad technographic scraping tools when you only need to confirm Klaviyo presence for sales qualification, competitor research, or migration planning. If you need to check multiple technologies at once, consider using sibling endpoints in sequence or looking for a bulk variant.

## Known failure modes

- Domain does not resolve or is unreachable — returns error or no-match
- Site blocks crawlers via robots.txt or firewall — may return false negative
- Klaviyo loaded client-side via JavaScript after page load — may not be detected from static HTML
- Invalid or malformed domain input — returns an error
- Site uses Klaviyo on inner pages but not homepage — false negative possible

## How this service works

Does a website use Klaviyo? Fetches the page (homepage for a bare domain) and matches Klaviyo's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (email-marketing). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

## Output

Returns a yes/no boolean indicating whether Klaviyo is detected on the target site, along with a snippet of evidence from the HTML or response headers that triggered the match, and the technology category label (email-marketing).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/does-site-use-klaviyo-7bb72e4f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from site.intel.rallylive.ca](https://www.zero.xyz/host/site.intel.rallylive.ca/llms.txt)