# GetApi DNSBL IP Blacklist Checker

> GetApi DNSBL IP Blacklist Checker is a paid API for AI agents from api.getapi.nl, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Checks an IP address against multiple DNS-based blackhole lists (DNSBLs) to determine if it is listed as a spam or abuse source

## Facts

- Endpoint: POST https://api.getapi.nl/api/v1/validate/dnsbl
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/getapi-dnsbl-ip-blacklist-checker-9656ff27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lmXlqWzrS8ETWBxn_EBbx

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 getapi-dnsbl-ip-blacklist-checker-9656ff27 -d '<json body>'
```

Example prompt: Can you check if the IP address 185.130.5.133 is listed on any DNSBL spam blacklists like Spamhaus or SpamCop?

## When to prefer this

Use this endpoint when you need to check an IP's spam or abuse reputation across multiple established DNSBL zones (Spamhaus, SpamCop, SORBS, Barracuda, PSBL) in a single call. Prefer this over manual DNS lookups when you need consolidated multi-blacklist results with descriptions and return codes. Ideal for email deliverability verification, fraud detection pipelines, and network security triage.

## Known failure modes

- Invalid or malformed IP address returns an error
- Private or reserved IP ranges may return unexpected results
- A DNSBL zone being temporarily unavailable may affect result completeness
- Network timeouts may cause incomplete blacklist checks

## How this service works

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    en meer. Gratis starten.

## Output

Returns a JSON object with the queried IP, an overall listed boolean, a list of checked DNSBL zones each with their name, listed status, description, and DNS return code, plus a count of how many lists the IP appeared on and the total number of lists checked.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ip": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ip": "185.130.5.133",
  "listed": true,
  "blacklists": [
   {
    "zone": "zen.spamhaus.org",
    "listed": true,
    "description": "SBL — Directe spam-bron",
    "return_code": "127.0.0.2"
   },
   {
    "zone": "bl.spamcop.net",
    "listed": false,
    "description": null,
    "return_code": null
   },
   {
    "zone": "dnsbl.sorbs.net",
    "listed": true,
    "description": "SORBS — variërend per sub-code",
    "return_code": "127.0.0.6"
   },
   {
    "zone": "b.barracudacentral.org",
    "listed": false,
    "description": null,
    "return_code": null
   },
   {
    "zone": "psbl.com",
    "listed": false,
    "description": null,
    "return_code": null
   }
  ],
  "listed_count": 2,
  "total_checks": 5
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/getapi-dnsbl-ip-blacklist-checker-9656ff27/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.getapi.nl](https://www.zero.xyz/host/api.getapi.nl/llms.txt)