`GET /v1/payments/wallets/{walletId}/balances` returns the wallet's native **SOL** balance plus every **SPL token** balance held by a custody wallet — raw amount, human-readable amount, decimals, and optional USD valuation when a price source is configured. SOL is always prepended as the first entry and is represented with `token: "SOL"` and `mint: "So11111111111111111111111111111111111111112"`.

## Request

<Tabs items={["curl", "TypeScript", "Java"]}>
<Tab value="curl">
```bash
curl https://api.solana.com/v1/payments/wallets/wal_abc123/balances \
  -H "Authorization: Bearer sk_test_..."
```
</Tab>
<Tab value="TypeScript">
```typescript
const response = await fetch(
  "https://api.solana.com/v1/payments/wallets/wal_abc123/balances",
  { headers: { Authorization: "Bearer sk_test_..." } }
);
const { data } = await response.json();
// data.walletBalances.balances: TokenBalance[]
```
</Tab>
<Tab value="Java">
```java
HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.solana.com/v1/payments/wallets/wal_abc123/balances"))
    .header("Authorization", "Bearer sk_test_...")
    .GET()
    .build();
```
</Tab>
</Tabs>

## Response shape

The payload is wrapped in the standard `data` / `meta` envelope, with the balances under a `walletBalances` key:

```json
{
  "data": {
    "walletBalances": {
      "walletId": "wal_abc123",
      "address": "3xYZa...2aBc",
      "balances": [
        {
          "token": "SOL",
          "mint": "So11111111111111111111111111111111111111112",
          "amount": "2500000000",
          "uiAmount": "2.5",
          "decimals": 9
        },
        {
          "token": "USDC",
          "mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
          "amount": "1500000000",
          "uiAmount": "1500.00",
          "decimals": 6,
          "usdPrice": 1.0,
          "usdValue": 1500.0
        }
      ]
    }
  },
  "meta": { "requestId": "req_...", "timestamp": "2026-05-18T00:00:00.000Z" }
}
```

Per-balance fields:

| Field | Notes |
| --- | --- |
| `token` | Token symbol if known, otherwise the on-chain mint. |
| `mint` | On-chain mint address. |
| `amount` | Raw amount in the smallest unit (string to preserve precision). |
| `uiAmount` | Human-readable decimal string — `amount / 10^decimals`. |
| `decimals` | Token's decimal count. |
| `usdPrice` | Per-token USD price; omitted when no pricing data is available. |
| `usdValue` | Total USD value (= `usdPrice * uiAmount`); omitted when pricing is unavailable. |
| `confidential` | Reserved for confidential transfer balances; absent for standard balances. |

## Use cases

- **Account dashboards** — display the contents of a custody wallet to its operator.
- **Pre-transfer balance checks** — validate that a wallet has enough of a specific token before kicking off a payout batch.
- **Treasury accounting** — periodic snapshots into an internal ledger.

## Pricing freshness

When USD valuation is populated, the price comes from SDP's configured price source and reflects the most recent quote available. The cadence and source depend on deployment configuration — do not rely on `usdValue` for downstream balance-sheet decisions without confirming the price source's freshness with your operations team. When in doubt, treat `amount` / `uiAmount` as authoritative and convert with your own price feed.

If no price source is configured, the `usdPrice` and `usdValue` fields are simply absent rather than zero — falling back to "I don't know" rather than "$0.00" so downstream consumers can decide how to handle the gap.

## Comparison to on-chain RPC

You can also enumerate SPL token balances by calling `getTokenAccountsByOwner` against a Solana RPC and decoding the returned token-account data. Reasons to use SDP's `balances` endpoint instead:

- **Token resolution** — SDP resolves the mint to a symbol when it knows one; raw RPC returns mints only.
- **USD pricing** — RPC has no concept of price.
- **No RPC dependency in your stack** — one fewer external integration when you are already calling SDP.

Reasons to skip SDP and go to RPC directly:

- **Cluster-of-truth** — you want the wallet's state at a specific slot for an audit.
- **Confidential transfer balances** — full extension support is RPC-side.
- **Latency-sensitive paths** — RPC is one hop closer to the cluster.

## Related

- [Wallet policies](/docs/payments/wallet-policies) — set transfer caps based on balance bounds.
- [Payouts and disbursements](/docs/payments/send-payouts) — balance-check before running a batch.
- [Set Up Wallets](/docs/guides/setup-wallets) — provision the wallets whose balances this endpoint reports.