# does-site-use-codepen

> does-site-use-codepen is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

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

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/codepen?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/does-site-use-codepen-df6cabd6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E3mV2OfFu9z4SmXnwLCLC

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-codepen-df6cabd6
```

Example prompt: Can you check if stripe.com uses CodePen anywhere on their site — I want to know if they embed CodePen snippets and see what evidence you find?

## When to prefer this

Use this endpoint when you need a fast, low-cost ($0.01) single-technology check specifically for CodePen on a target domain. It is ideal for sales prospecting enrichment, competitor technology research, or migration audits where you only need to confirm CodePen presence. If you need to check multiple technologies at once or want full stack analysis, consider combining with sibling endpoints. For bulk domain checks, prefer a bulk variant if available.

## Known failure modes

- Domain is unreachable or returns a non-200 status, resulting in an error or inconclusive result
- Site uses heavy JavaScript rendering that prevents static fingerprint matching, leading to false negatives
- CodePen usage is only on inner pages, not the homepage, causing false negatives for bare domains
- Rate limiting or bot-blocking by the target site may prevent page fetch
- Invalid or malformed domain input causes a request error

## How this service works

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

## Output

Returns a yes/no boolean indicating CodePen detection, an evidence snippet from the HTML or response headers that triggered the match, and the technology category (embeds). If CodePen is not detected, returns a negative result with no evidence.

## 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-codepen-df6cabd6/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)