APEX Protocol

The Agent Protocol for Engine Execution (APEX) is Aircada's strictly-typed, flat-domain communication protocol linking LLMs directly to live 3D contexts.
Published: 7/10/2026

APEX represents the high-performance execution layer of the Aircada agent stack. It establishes a robust, highly predictable transaction system that allows agents to reliably query, construct, edit, and delete elements in the live 3D viewport without schema hallucination.

Importantly, APEX transactions and sensing operations can only be successfully exchanged when the local Aircada CLI development server is running and the Aircada Studio web application is actively loaded in the designer's web browser.

APEX Protocol Architecture & Philosophy
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The architectural foundations of the APEX protocol, prioritizing flat domains, closed-loop state inspection, and atomic execution guarantees.
APEX Entity Actions & Payloads Reference
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Detailed API payload contracts and interfaces for mutating Scene Objects, Effects, Operators, Datasets, and Options.
APEX Transaction Usage
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Production-ready JSON transaction usages demonstrating dataset management, row operations, option models, and selection groups.
APEX Engine Inspection & Live State Loops
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Sensing the live environment using ApexInspectionRequest and ApexInspectionResponse to drive the closed-loop See -> Think -> Act pattern.
APEX Type System & Action Schema
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Complete type specifications for APEX operations, target domains, and the BaseApexAction contract.
APEX Atomic Transactions & Temporary ID Mapping
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How batch APEX actions are dispatched atomically, mapped via client-side temporary IDs, and recorded with intent telemetry.
APEX Agent Workflows
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Comprehensive workflows guiding agents on how to leverage APEX domains and transactions in common 3D scene configuration scenarios.

About the Author

W
Wylie Chenoweth
Co-founder & CTO

Wylie Chenoweth is the CTO of Aircada. He leads the engineering team building the high-performance 3D rendering engine and tools, bringing over a decade of systems architecture and 3D web rendering experience.