# Railway.app Down Status Change Watch

> Railway.app Down Status Change Watch is a paid API for AI agents from monitor.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Monitors railway.app availability and returns the current up/down status along with a change flag and before/after field diffs compared to the previous check

## Facts

- Endpoint: GET https://monitor.intel.rallylive.ca/watch/monitor/is-down/railway-app?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/railway-app-down-status-change-watch-9926cb17
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Po0lNtllltC1gJeHOpPbd

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 railway-app-down-status-change-watch-9926cb17
```

Example prompt: Keep an eye on railway.app for me — check if it's gone down and tell me whether the status has changed since the last time you checked, including what exactly changed and when.

## When to prefer this

Use this endpoint when you need change detection rather than just a raw status check — it compares the current result against a stored snapshot so you don't have to manage state yourself. Ideal for scheduled polling workflows where you only want to act when something actually changed. Prefer this over the raw `is-railway-app-down` endpoint when building alerting pipelines or incident detection automations.

## Known failure modes

- Network timeout reaching railway.app edge check — may return indeterminate status
- No previous check stored yet — `changed` will default to false or null on first call
- Stale comparison if more than 90 days have elapsed since last call — previous result is dropped
- railway.app may return partial responses causing ambiguous down/up determination

## How this service works

Change watch for is railway app down: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

## Output

Returns the current up/down status of railway.app, a boolean `changed` field indicating whether the result differs from the previous call, a diff of fields that changed with before/after values, and a timestamp of when the status was last observed. Previous results are retained for 90 days per query.

## 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/railway-app-down-status-change-watch-9926cb17/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from monitor.intel.rallylive.ca](https://www.zero.xyz/host/monitor.intel.rallylive.ca/llms.txt)