# is-fly-io-down-watch

> is-fly-io-down-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 Fly.io availability and returns whether status has changed since the last check, including before/after field diffs and timestamp

## Facts

- Endpoint: GET https://monitor.intel.rallylive.ca/watch/monitor/is-down/fly-io?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/is-fly-io-down-watch-1b8a3780
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bFiGNU2X8NzOgS1CVzvW-

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 is-fly-io-down-watch-1b8a3780
```

Example prompt: Check if Fly.io is down right now and tell me if anything has changed since the last time you checked — I want to know what fields flipped and when it was last seen.

## When to prefer this

Use this endpoint when you need change-detection semantics for Fly.io availability — not just a point-in-time status check, but a diff against the last known state. Ideal for scheduled polling workflows where you only want to act on transitions (up→down or down→up) rather than every poll result. Prefer this over a plain status check when building alert pipelines or incident automation that should fire only when something actually changes.

## Known failure modes

- No previous check stored (first call returns current status with no diff)
- Fly.io check itself times out or fails to reach the target
- Payment failure due to missing or invalid x402 payment header
- Stored comparison data expired after 90-day retention window

## How this service works

Change watch for is fly io 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 Fly.io, a boolean indicating whether the status changed since the previous call, a list of fields that changed with their before and after values, and the timestamp of when the status was last observed. Previous check results are retained for 90 days for comparison.

## 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/is-fly-io-down-watch-1b8a3780/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)