# Apple App Site Association File Checker

> Apple App Site Association File Checker 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).

Checks whether a domain hosts a /.well-known/apple-app-site-association file and returns its HTTP status, content type, size, and a preview of its contents.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/file/well-known-apple-app-site-association?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/apple-app-site-association-file-checker-63831187
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vTLPua-fzIy76SdbWtm6Y

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 apple-app-site-association-file-checker-63831187
```

Example prompt: Check whether example.com has an Apple App Site Association file set up — I want to know if it's there, what the HTTP status is, and what it says.

## When to prefer this

Use this endpoint when you need to quickly verify whether a specific domain has configured Apple App Site Association for iOS universal links, without manually fetching or parsing the file yourself. It is preferable when you want a lightweight, single-domain probe that returns both presence signal and a content preview, especially in bulk auditing, competitive research, or pre-launch validation workflows.

## Known failure modes

- Domain does not exist or is unreachable — connection timeout or DNS failure
- File is absent — returns 404 or redirect status with no content preview
- Server returns non-text content type — content preview may be empty or binary
- Firewall or bot-protection blocks the probe — may return 403 or 429
- Malformed or unexpected response headers — content type or size may be missing

## How this service works

Does https://<domain>/.well-known/apple-app-site-association exist? Requests the path and returns the HTTP status, content type, size and the first 300 characters when it is text. Presence of .well-known/apple-app-site-association tells you about the site's tooling and policies. $0.01 per check.

## Output

Returns the HTTP status code for the /.well-known/apple-app-site-association path on the target domain, along with the content type header, the file size in bytes, and up to the first 300 characters of the response body if it is text. If the file does not exist, the status code (e.g. 404) reflects its absence.

## 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/apple-app-site-association-file-checker-63831187/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)