Definitive Client API
This page provides context for developers interested in integrating the Definitive Trading API.
Last updated
This page provides context for developers interested in integrating the Definitive Trading API.
💡 Looking for Flash API, our new Advanced Orders API? See Flash Docs here
Existing institutional and other clients of Definitive's trading platform can use this REST API to:
Incorporate Definitive's trading capabilities into internal trading tools
Access Post-Trade Reporting data directly via API
Build internal products and tools leveraging existing Definitive trading vault wallet infra
This API gives existing clients access to all of the institutional-grade execution and automated post-trade analytics found in your account on our advanced trading terminal.
This API lets you leverage our existing Definitive account to execute trades across 200+ liquidity venues, access advanced order types, and retrieve post-trade data — without the headache of building execution logic, routing algorithms, or parsing block explorer data yourself.
When you place an order on Definitive we ensure institutional-grade, multi-venue execution by automatically routing orders across 100+ DEXs, PMMs, Liquidity Pools, Contracts, and Aggregators.
Our API provides instant quotes and breakdowns of execution venues for the fills involved.
Definitive supports onchain Market, Limit, TWAP, and Stop order types. Build advanced execution strategies through a unified, low-friction API.
Definitive is the only platform that offers onchain Market, Limit, TWAP, and Stop orders while keeping intent off-chain.
Unlike traditional protocols that expose strategy details onchain )risking frontrunning and MEV) Definitive separates order creation from execution. This architecture allows you to express complex trading logic without leaking sensitive intent to the network, preserving alpha and improving execution quality.
With Definitive, users never worry about gas fees. By leveraging account-abstraction we are able to remove the friction of gas-sponsorship so you can focus fully on trading.
Every trade routed through Definitive returns:
Fill Time
Fill Size
Detailed Price Breakdown
Execution Venues
Fee Details
Skip hours of parsing block explorers with Definitive’s automated post-trade data.
Save Months of Dev Time
No need to build complex execution engines, slippage logic, or multi-chain liquidity routing from scratch.
Transparent Post-Trade Data
Instantly access trade fill data for compliance, reconciliation, or internal PnL dashboards.
Unified Access Across Chains
One integration unlocks all major EVM chains + Solana.
Built for AI Agents
Real-time trading APIs ready for integration with automated models and intelligent agents.
Battle-Tested Infra
Over $1.3B in notional volume executed on Definitive since March 2024 and multiple security audits from Tier 1 firms.
Chain-agnositc Execution
We're fully integrated across 10 chains (and more coming), seamlessly bridge and trade cross-chain.
REST API Reference (full API documentation)
Last updated