# SiteCheck Web Intel – SpamEatingMonkey DNSBL Lookup

> SiteCheck Web Intel – SpamEatingMonkey DNSBL Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).

Checks an IPv4 address against the SpamEatingMonkey DNS blocklist (bl.spameatingmonkey.net) to determine if it is listed as a mail spam source.

## Facts

- Endpoint: GET https://api.webintel-api.workers.dev/api/security/spameatingmonkey?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-web-intel-spameatingmonkey-dnsbl-lookup-04598eb8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZqXBoAHgIYCb-Y0-JLFgM

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 sitecheck-web-intel-spameatingmonkey-dnsbl-lookup-04598eb8
```

Example prompt: Can you check if the IP address 185.220.101.1 is listed on the SpamEatingMonkey spam blocklist right now?

## When to prefer this

Choose this endpoint when you specifically need to check an IP against the SpamEatingMonkey (bl.spameatingmonkey.net) blocklist, which is widely used in anti-spam filtering for mail servers. Prefer this over generic IP reputation checks when you need a point-in-time DNSBL answer for email deliverability decisions or spam triage. Use alongside CI Army or Tor exit node checks for broader coverage.

## Known failure modes

- Invalid or non-IPv4 input — endpoint expects a valid IPv4 address string
- DNS resolution failure — public DNS temporarily unavailable
- IP not listed — returns empty/no-record response, not an error
- Rate limiting or payment failure — x402 payment must succeed per call

## How this service works

Checks an IPv4 mail-sending address against the SpamEatingMonkey DNS blocklist (bl.spameatingmonkey.net) through public DNS. A listed address returns its 127.0.0.x return code; an unlisted one returns no record. Listings change often; this is a point-in-time answer.

## Output

Returns the DNSBL lookup result for the queried IPv4 address: if listed, returns the 127.0.0.x return code from bl.spameatingmonkey.net indicating the listing category; if not listed, returns no record. This is a point-in-time answer as listings change frequently.

## 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",
     "required": [
      "ip"
     ],
     "properties": {
      "ip": {
       "type": "string",
       "description": "IPv4 address such as 185.220.101.1 (required)"
      }
     }
    }
   },
   "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/sitecheck-web-intel-spameatingmonkey-dnsbl-lookup-04598eb8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.webintel-api.workers.dev](https://www.zero.xyz/host/api.webintel-api.workers.dev/llms.txt)