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Helios is built as a non-custodial, execution-focused infrastructure layer. Security is embedded at every level of the system—from architecture and transaction routing to monitoring, audits, and operational controls.
Helios is a non-custodial execution infrastructure for decentralized finance. It provides a unified API for routing liquidity, executing transactions, and coordinating cross-chain actions with built-in risk awareness.
This guide walks you through executing your first transaction with Helios. By the end, you’ll have simulated and executed a basic DeFi operation using the Helios API.
All Helios API calls return structured, machine-readable responses. Responses are designed to be deterministic and easy to reason about in production systems.
Helios uses API keys and request signing to authenticate and authorize requests. All requests must be authenticated before reaching execution or simulation layers.
An execution request defines what should happen on-chain and under what constraints.
The Liquidity & Routing API exposes Helios’s aggregation and optimization layer. It allows applications to inspect available liquidity, simulate routes, estimate costs, and control how executions are constructed before submission.
The Risk Intelligence API exposes real-time safety signals used by Helios to evaluate execution viability. Risk signals inform routing decisions and can block execution when thresholds are exceeded.
The Gas & Fee Management API provides estimation, prioritization, and fee transparency for executions coordinated by Helios. Gas is treated as part of execution reliability, not an afterthought.
Helios emits webhook events to notify your system of execution lifecycle changes in real time. Webhooks allow you to react to execution updates without polling the API.
This section outlines how Helios reports errors, enforces limits, and should be used in production systems.
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