# Solana Wallet Reverse Domain Lookup (Primary .sol Domain)

> Solana Wallet Reverse Domain Lookup (Primary .sol Domain) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Returns the primary (favourite) .sol domain name associated with a Solana wallet address, verified on-chain to confirm the wallet still owns it.

## Facts

- Endpoint: POST https://api.vextorium.com/sol-dominio-inverso-pago?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solana-wallet-reverse-domain-lookup-primary-sol-domain-43cb759c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3MCv8Wpez235Mel0LGg-9

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 solana-wallet-reverse-domain-lookup-primary-sol-domain-43cb759c -d '<json body>'
```

Example prompt: What's the primary .sol domain name for the Solana wallet address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU, and is the wallet verified to still own it?

## When to prefer this

Choose this endpoint when you need to reverse-resolve a Solana wallet address to its human-readable .sol domain and need on-chain ownership verification included in the same call. Prefer this over a forward SNS lookup (domain → wallet) when you start with a wallet address and want the canonical display name. Ideal for enriching wallet-based user profiles, validating identities before transactions, or humanizing address displays in interfaces.

## Known failure modes

- Wallet address has no primary .sol domain set — returns null for domain fields
- Wallet previously owned a .sol domain but has since transferred it — sigue_siendo_suyo returns false
- Invalid or malformed Solana base58 address — likely returns an error or null result
- On-chain RPC node unavailability causing lookup failure
- Wallet exists but has never registered a .sol domain

## How this service works

Primary (favourite) .sol domain of a Solana wallet, read on-chain and checked that the wallet still owns it.

## Output

Returns the primary .sol domain (dominio_principal), the configured domain (dominio_configurado), the wallet address (direccion), a boolean confirming whether the wallet still owns the domain (sigue_siendo_suyo), the account name (cuenta_nombre), and any notes (nota). Fields may be null if no primary domain is set or ownership has lapsed.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "direccion"
     ],
     "properties": {
      "direccion": {
       "type": "string",
       "description": "Solana wallet address (base58)"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": [
      "object",
      "null"
     ],
     "properties": {
      "nota": {
       "type": [
        "string",
        "null"
       ]
      },
      "direccion": {
       "type": [
        "string",
        "null"
       ]
      },
      "cuenta_nombre": {
       "type": [
        "string",
        "null"
       ]
      },
      "dominio_principal": {
       "type": [
        "string",
        "null"
       ]
      },
      "sigue_siendo_suyo": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "dominio_configurado": {
       "type": [
        "string",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "nota": "Dominio favorito leído de Solana Name Service.",
  "direccion": "Fw1ETanDZafof7xEULsnq9UY6o71Tpds89tNwPkWLb1v",
  "cuenta_nombre": "AgJujvNQgYESUwBPitq2VUrfTaT2bvueHbgvsxqZ2sHg",
  "dominio_principal": "couponvault.sol",
  "sigue_siendo_suyo": true,
  "dominio_configurado": "couponvault.sol"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solana-wallet-reverse-domain-lookup-primary-sol-domain-43cb759c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)