# ip-listed-on-sorbs

> ip-listed-on-sorbs is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-09).

Checks whether a given IPv4 address is listed on the SORBS DNSBL (dnsbl.sorbs.net) and returns listed status, return codes, and reason text.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/ip/blacklist/sorbs?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ip-listed-on-sorbs-79700769
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4QHmV5TBJVDMORrZiIdQN

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-sorbs-79700769
```

Example prompt: Can you check if the IP address 198.51.100.42 is listed on the SORBS blacklist (dnsbl.sorbs.net) and tell me the return code and reason if it is?

## When to prefer this

Choose this endpoint when you need a precise, single-list DNSBL check specifically against SORBS (dnsbl.sorbs.net) rather than an aggregated multi-list score. Ideal for email security pipelines, spam filter automation, or IP reputation enrichment where SORBS listing status is the specific signal required. Prefer this over generic IP reputation APIs when you need the raw SORBS return codes and reason text rather than a composite score.

## Known failure modes

- IP address not provided or malformed — query fails with input validation error
- DNS resolution failure via Cloudflare DoH — upstream timeout or error
- IP not listed — returns listed: false with no return codes or reason
- SORBS DNSBL temporarily unavailable — upstream DNS error returned
- IPv6 address provided instead of IPv4 — not supported by this endpoint

## How this service works

Is this IPv4 address listed on sorbs (dnsbl.sorbs.net)? Performs the DNSBL query (reversed octets under dnsbl.sorbs.net, via Cloudflare DoH) and returns listed yes/no with the return codes and, where the list publishes one, the reason text. One list, one precise answer. $0.01 per lookup.

## Output

Returns a yes/no indicator of whether the IPv4 address is listed on SORBS (dnsbl.sorbs.net), along with the DNS return codes from the DNSBL query and, where published by SORBS, a human-readable reason text explaining the listing category (e.g. spam source, open proxy, zombie).

## 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-sorbs-79700769/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)