# SixPath Domain Checker

> SixPath Domain Checker is a paid API for AI agents from sixpath.vercel.app, paid per call via x402, $0.177064/call, status unknown (last checked 2026-10-21).

Checks the availability and registration status of a domain name.

## Facts

- Endpoint: POST https://sixpath.vercel.app/api/domain-checker?utm_source=zero.xyz
- Price: $0.177064/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sixpath-domain-checker-f996dfc3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cKGdzPKCRvZbV_mEQPIEw

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 sixpath-domain-checker-f996dfc3 -d '<json body>'
```

Example prompt: Can you check if 'morningbloom.io' is available or already registered?

## When to prefer this

Choose this endpoint when you need a quick pay-per-call domain availability or WHOIS lookup without a subscription. It is part of the SixPath API Hub, which uses the x402 micropayment protocol on Base chain, making it suitable for lightweight agent workflows that only pay when they query. Prefer it over subscription-based WHOIS services for low-volume or on-demand domain checks.

## Known failure modes

- Invalid domain format returns an error response
- Network timeout if WHOIS/DNS lookup takes too long
- Unknown or unsupported TLDs may return incomplete data
- Missing or malformed POST body results in a 400 error
- Payment failure via x402 protocol prevents the call from completing

## How this service works

All-in-one API hub: Social Media, Jobs, Finance, Crypto, and Tools. Pay-per-call with x402 protocol on Base chain.

## Output

Returns whether the specified domain is available or already registered, along with registration details such as registrar, creation date, expiry date, and name servers when applicable.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sixpath-domain-checker-f996dfc3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sixpath.vercel.app](https://www.zero.xyz/host/sixpath.vercel.app/llms.txt)