> For the complete documentation index, see [llms.txt](https://docs.flash.trade/flash-trade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flash.trade/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/quickstart.md).

# Quickstart

Go from an empty wallet to an open position and back out in one pass. This is the only page that stitches every step together — each endpoint is documented in full under [API reference](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/reference.md).

**Base URL:** `https://flashapi.trade`

```bash
export FLASH_API_URL="https://flashapi.trade"
export WALLET="<your-wallet-pubkey>"
```

Every builder returns an **unsigned** transaction — you sign client-side and submit to the right RPC:

| Transaction kind                                              | Submit to           |
| ------------------------------------------------------------- | ------------------- |
| Account & funds (`deposit`, `delegate-basket`, `withdraw`, …) | your Solana RPC     |
| Trading (`open-position`, `close-position`, …)                | the v2 RPC endpoint |

See [Signing & submitting](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/signing-and-submitting.md) for the decode-sign-send code.

## 1. Check the service and read a price

```bash
curl $FLASH_API_URL/health
curl $FLASH_API_URL/prices/SOL
```

## 2. Fund the wallet

`deposit` moves collateral in and bundles any one-time setup (basket, deposit ledger, delegation, trade vault) into the same transaction.

```bash
curl -X POST $FLASH_API_URL/transaction-builder/deposit \
  -H 'Content-Type: application/json' \
  -d '{ "owner": "'$WALLET'", "tokenSymbol": "USDC", "amount": "100.0" }'
```

Sign with the owner, submit to your **Solana RPC**, confirm.

## 3. Delegate (enable trading)

```bash
curl -X POST $FLASH_API_URL/transaction-builder/delegate-basket \
  -H 'Content-Type: application/json' \
  -d '{ "owner": "'$WALLET'", "payer": "'$WALLET'" }'
```

One-time per wallet. Submit to your **Solana RPC**.

## 4. Open a position

```bash
curl -X POST $FLASH_API_URL/transaction-builder/open-position \
  -H 'Content-Type: application/json' \
  -d '{
    "inputTokenSymbol": "USDC",
    "outputTokenSymbol": "SOL",
    "inputAmountUi": "100.0",
    "leverage": 5.0,
    "tradeType": "LONG",
    "owner": "'$WALLET'"
  }'
```

The response carries a quote (entry price, liq price, fees) plus `transactionBase64`. Sign and submit to the **v2 RPC**.

> **Tip:** omit `owner` to get the quote back with `transactionBase64: null` — a free preview before you commit.

## 5. Read your position

Don't reconstruct state from the trade response — read the basket:

```bash
curl $FLASH_API_URL/owner/$WALLET
```

`positionMetrics` gives UI-ready PnL, leverage, and liquidation price keyed by market. For live updates, use the [WebSocket](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/stream-live-state.md) instead of polling.

## 6. Close

```bash
curl -X POST $FLASH_API_URL/transaction-builder/close-position \
  -H 'Content-Type: application/json' \
  -d '{
    "marketSymbol": "SOL",
    "side": "LONG",
    "inputUsdUi": "500.00",
    "closeAll": true,
    "withdrawTokenSymbol": "USDC",
    "owner": "'$WALLET'"
  }'
```

Submit to the **v2 RPC**.

## 7. Withdraw

```bash
curl -X POST $FLASH_API_URL/transaction-builder/withdraw \
  -H 'Content-Type: application/json' \
  -d '{ "owner": "'$WALLET'", "tokenSymbol": "USDC", "amount": "100.0", "feePayer": "<FEE_PAYER>" }'
```

`feePayer` must differ from `owner`; the client co-signs both. If the response says `custodySettlementRequired`, settle first and retry — see [Withdraw funds](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/withdraw-funds.md). Submit to your **Solana RPC**.

***

## Next steps

* **Understand the model** → [The Basket model](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/concepts/basket-model.md) · [Funds lifecycle](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/concepts/funds-lifecycle.md)
* **Do one task** → [Guides](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides.md)
* **Look up every field** → [API reference](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/reference.md)


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