For the complete documentation index, see llms.txt. This page is also available as Markdown.

Flash API (NEW)

A single API integration for every order type on every asset. 200+ liquidity sources. EVM & Solana.

The only API with a full suite of advanced order types, for any token or RWA asset - out of the box. EVM & Solana. Start building today - see Docs here

TL;DR

Flash API is Definitive’s new, institutional-grade, trade execution API that lets any builder offer advanced trading capabilities akin to a professional trading desk, on every asset on EVM and Solana — in a single, AI-friendly integration.

💡 Wallets. Neobanks. Apps. Agents. — One API. A single execution layer for Stop Loss, Take Profit, Limit, DCA, TWAP & Market orders. EVM + Solana. Non-custodial. Smart routing across 200+ DEXs & liquidity sources. MEV protected.

Flash competes on advanced execution for the next generation of wallets and agents that need more than a quote-and-calldata model.

Flash API is fully non-custodial, even for triggered/conditional order types - funds stay in your wallet until trade execution conditions are met.

Who Flash API Is For

  • Crypto wallets looking to add advanced order types (DCA, TWAP, Limit, Stop, Take Profit, Market) as an additional revenue stream without a 6+ month engineering sprint

  • AI Trading Agents that need a sophisticated, reliable execution layer for autonomous trading strategies

  • Fintech apps where trading is one feature, not a core product you want to spend 6+ months building

  • Any app that need trading-as-a-feature as an additional revenue stream or differentiator

The Flash API Difference

Features exclusively available via Definitive Flash API not offered by the top trading API providers.

Feature

Flash API Benefit

Advanced Order Types (DCA, TWAP, Limit, Stop, Take Profit)

The only API offering advanced orders for any token on EVM & Solana, out of the box.

Managed Transaction Landing

We land orders on your behalf, handling MEV protection, gas optimization, transaction retry logic and more. Others return calldata, but submission is on you.

EVM + Solana Unified API

Definitive’s single API offers robust execution in both EVM & Solana ecosystems across 200+ DEXs and liquidity venues.

Privacy & Trade Order Masking

Trade intents are held offchain until execution. All trades are routed through Definitive proxy addresses vs. directly through your wallet to help mitigate wallet-tracking.

Quick Trade

Optimized order type for trading new or high-volatility tokens / trench-trading

Post Trade Reporting (Coming Soon)

Post trade data to power analytics, accounting or compliance flows, including timestamp, trade size, average fill price and more.


Why Be an Early Flash Partner?

We’re inviting a select group of wallets and AI agent projects to integrate Flash API before general availability. If you’d like to participate, please fill out this quick form.

What Early Partners Receive

Benefit
What It Means For You

Early Access

Private beta access to the latest Flash API features before public launch.

Dedicated Integration Support

FREE integration support and direct line to team via TG for 6 months

Co-Marketing Support

Joint announcement on Definitive’s official socials and email newsletter with 1000s pf traders to help drive traffic to you. Feature in Flash API case study (with your input on content).

Product Roadmap Influence

Your use case and feedback directly shape the Flash API roadmap.

Get Started Today

Start building with Flash today - see our AI-friendly Docs here

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