# x402 Trust & Discovery API — ENS / Basename Onchain Name Resolution

> x402 Trust & Discovery API — ENS / Basename Onchain Name Resolution is a paid API for AI agents from gkyf2bs3b4p35hwwg5zzsnejeu.srv.us, paid per call via x402, $0.001/call, status down (last checked 2026-10-02).

Resolves ENS names and Basenames to addresses (or reverse-resolves addresses to primary names) on Base, without requiring payment credentials

## Facts

- Endpoint: GET https://gkyf2bs3b4p35hwwg5zzsnejeu.srv.us/v1/onchain/name?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-trust-discovery-api-ens-basename-onchain-name-resolution-8393565d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v1dAF-CRY84hWeUg67Dri

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 x402-trust-discovery-api-ens-basename-onchain-name-resolution-8393565d
```

Example prompt: What's the wallet address for jesse.base.eth? Just resolve it for me using the onchain name lookup.

## When to prefer this

Use this endpoint when you need keyless, no-payment-required resolution of ENS names or Basenames on Base. Ideal for agents that need to resolve human-readable Web3 identities to addresses (or vice versa) as a prerequisite step before payment or interaction, without needing EIP-3009 or Circle Gateway credentials.

## Known failure modes

- Name not found or not registered — returns empty or null result
- Address has no primary name set — reverse resolution returns null
- Invalid or malformed ENS/Basename input — may return error or empty
- Network unavailability on Base — service returns 5xx error
- Name exists but points to no address (misconfigured record) — returns null address

## How this service works

Independent pre-purchase safety and reputation checks for x402 and MPP endpoints, plus keyless onchain data on Base. Accepts BOTH EIP-3009 and Circle Gateway credentials — only 141 of 788 Base-payable resources do, and a single-credential buyer is locked out of 53.8% of this market on one rail or 28.3% on the other. GET /v1/guard?url=&credential= answers whether the credential you carry can pay a given endpoint at all, before you try. Searching this market for "is this API endpoint a scam" returns registries and explorers but no dedicated service; that gap is what /v1/guard fills, inspecting an endpoint WITHOUT paying it and returning a go / test-with-minimum / do-not-pay verdict backed by onchain settlement history.

## Output

A JSON object containing the resolved wallet address for a given ENS name or Basename, or the primary name associated with a given address. Returns onchain name record data sourced from Base without requiring any payment credentials.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string",
   "description": "ENS name or Basename to resolve, e.g. vitalik.eth or jesse.base.eth."
  },
  "address": {
   "type": "string",
   "description": "Address to reverse-resolve to a primary name."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-trust-discovery-api-ens-basename-onchain-name-resolution-8393565d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gkyf2bs3b4p35hwwg5zzsnejeu.srv.us](https://www.zero.xyz/host/gkyf2bs3b4p35hwwg5zzsnejeu.srv.us/llms.txt)