# Does Site Use ConvertKit

> Does Site Use ConvertKit 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).

Detects whether a website uses ConvertKit by fingerprinting its homepage HTML and response headers, returning a yes/no result with evidence and category.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/convertkit?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-convertkit-3bce6cdf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vAsJnqOvAf066WI0paaQT

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-convertkit-3bce6cdf
```

Example prompt: Can you check if acmecorp.com uses ConvertKit for their email marketing?

## When to prefer this

Use this endpoint when you need a fast, low-cost ($0.01) single-domain check for ConvertKit specifically. Prefer it over broad technographic APIs when you only need ConvertKit detection and want per-call pricing. Choose the sibling bulk endpoint if you need to check multiple domains at once. Best for sales prospecting workflows, competitive intelligence pipelines, and pre-migration audits where ConvertKit is the technology of interest.

## Known failure modes

- Domain not reachable or returns non-200 status — check may fail or return inconclusive result
- Site uses JavaScript-rendered ConvertKit embeds that aren't visible in static HTML — may return false negative
- Rate limiting or bot protection on target site blocks the fetch — result may be unreliable
- Bare domain redirects to a subdomain or path that differs from the homepage — fingerprint may miss ConvertKit presence
- Payment not processed — call rejected before execution

## How this service works

Does a website use ConvertKit? Fetches the page (homepage for a bare domain) and matches ConvertKit'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 ConvertKit is detected on the site, along with an evidence snippet (the matched HTML or header fragment that triggered the fingerprint) 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-convertkit-3bce6cdf/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)