# does-site-use-sentry

> does-site-use-sentry 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 given website uses Sentry for error monitoring by inspecting its homepage HTML and response headers for Sentry fingerprints.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/sentry?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-sentry-5ca15eac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AyD7FL_6EN1VdBhk6d-7W

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-sentry-5ca15eac
```

Example prompt: Can you check whether acmecorp.com uses Sentry for error monitoring?

## When to prefer this

Use this endpoint when you need a fast, low-cost ($0.01) single-domain check for Sentry specifically. Prefer this over generic technology-stack scanners when you only need a yes/no answer for Sentry with supporting evidence. For bulk checks across many domains, use the corresponding bulk sibling endpoint instead.

## Known failure modes

- Domain is unreachable or returns non-200 status — result may be indeterminate or an error
- Website uses CSP or bot-blocking that prevents the fetch — false negative possible
- Sentry loaded dynamically via client-side JS may not be detected in static HTML inspection
- Bare domain redirect chains may cause timeouts or incomplete fetches

## How this service works

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

## Output

Returns a yes/no answer indicating whether Sentry is detected on the website, along with the evidence snippet (e.g. matching HTML fragment or response header value) that triggered the match, and the technology category ('monitoring').

## 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-sentry-5ca15eac/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)