# ip-listed-on-mailspike-watch

> ip-listed-on-mailspike-watch is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).

Monitors whether an IPv4 address is listed on the Mailspike DNSBL and alerts when the listing status changes between checks.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/blacklist/mailspike?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ip-listed-on-mailspike-watch-502a8569
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RmoVIz9qn63-_dW3BElhC

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 ip-listed-on-mailspike-watch-502a8569
```

Example prompt: Keep an eye on 203.0.113.42 and let me know if its Mailspike blacklist status ever changes — I want to catch the moment it gets listed or cleared.

## When to prefer this

Choose this endpoint when you need to be alerted to changes in Mailspike DNSBL listing status rather than just performing a one-time check. It is ideal for scheduled monitoring workflows where you want to detect the moment an IP is listed or delisted, and need a diff (before/after values) rather than just the current state. Use the non-watch sibling endpoint for a simple one-off lookup.

## Known failure modes

- IP address not provided or malformed — no query can be performed
- Previous result not found (first call for this IP) — no comparison possible, baseline is stored
- Mailspike DNSBL query failure — DNSBL server unavailable or timeout
- Rate limiting or payment failure — x402 payment required at $0.02 per call
- IP is IPv6 — only IPv4 addresses are supported by DNSBL reverse-lookup format

## How this service works

Change watch for ip listed on mailspike: runs the check, compares it with the result from your previous call for the same ip (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 Mailspike listing status for the IP, a boolean 'changed' flag indicating whether the result differs from the previous call (stored up to 90 days), a list of fields that changed with their before and after values, and a timestamp of when the status was last seen.

## 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/ip-listed-on-mailspike-watch-502a8569/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ip.intel.rallylive.ca](https://www.zero.xyz/host/ip.intel.rallylive.ca/llms.txt)