Flash Trade V2 API

Build on the Flash Trade v2 perpetuals engine — REST + WebSocket.

The Flash Trade v2 API is a REST + WebSocket interface to the Flash perpetuals engine — near-instant, gasless trade execution on Solana. Build trading UIs, bots, and integrations without running your own indexer or transaction builder.

Base URL: https://flashapi.trade

There's no API key. You read data over plain HTTP and build transactions server-side; every transaction comes back unsigned, and you sign and submit it from the client. See Signing & submitting.

Start here

If you want to…

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See it work end-to-end

Quickstart

Understand how it works before you build

Core concepts

Do one specific task

Guides

Look up an exact endpoint, field, or type

API reference

Handle an error

Errors

What you can build

Trade — open, close, increase, decrease, and reverse leveraged positions; market and limit orders.
Manage risk — attach take-profit / stop-loss, add or remove collateral.
Move funds — deposit, delegate, and withdraw through the funds lifecycle.
Read state — prices, markets, pool stats, and a wallet's live positions & orders.
Stream — subscribe to a wallet's basket snapshot over WebSocket.
Preview — compute fees, exit fees, TP/SL PnL, and margin changes without building a transaction.

How it works in 60 seconds

One account per wallet. All of a wallet's positions and orders live in a single per-owner Basket — one position per market. You identify a position by (owner, marketSymbol, side); the backend resolves the rest. → The Basket model
Funds lifecycle. Collateral moves through deposit → delegate → trade → withdraw. → Funds lifecycle
Two submit targets. Account & funds transactions go to your Solana RPC; trading transactions go to the v2 RPC endpoint. → Signing & submitting