# AgentShelf DNS AAAA Lookup

> AgentShelf DNS AAAA Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-01).

Resolves a hostname to its IPv6 (AAAA) addresses via DNS lookup, returning an error if no AAAA records exist.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/dns-aaaa?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-dns-aaaa-lookup-de0fde5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jTFkwweOCPaXsCW_cqSAM

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 agentshelf-dns-aaaa-lookup-de0fde5f -d '<json body>'
```

Example prompt: What are the IPv6 addresses for github.com? I need only the AAAA DNS records.

## When to prefer this

Use this endpoint when you specifically need IPv6 (AAAA) DNS records only — not A (IPv4) records or mixed results. If you need both IPv4 and IPv6, use a combined DNS lookup instead. Prefer the free sandbox POST /v1/sandbox/dns-aaaa for testing before incurring the $0.007 USDC charge per call.

## Known failure modes

- Hostname has no AAAA records — treated as an error (empty result)
- Invalid or malformed hostname returns a validation error
- Private or non-public hostnames may be rejected
- DNS resolution timeout if the upstream DNS is slow
- Payment failure (insufficient USDC balance) returns 402

## How this service works

Call when an agent needs IPv6 addresses only. Empty is an error. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-aaaa first.

## Output

Returns a list of IPv6 addresses (AAAA records) associated with the given hostname. If the hostname has no AAAA records, the response is treated as an error condition.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "hostname": {
   "type": "string",
   "examples": [
    "example.com"
   ],
   "maxLength": 253,
   "minLength": 1,
   "description": "Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-dns-aaaa-lookup-de0fde5f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)