Developer Environment Setup

Developer Environment Setup

Component	Environment Variables / Setup	Purpose
Facilitator	.env with RPC URLs, sponsor key, and whitelist	Runs verification and settlement
Core SDK	Client-side wallet integration	Generates signatures and headers
Middleware	API integration (Express/Hono)	Validates and settles incoming payments
Blockchain	7 EVM mainnets supporting EIP-7702	Executes delegated transactions

All configurations, Docker scripts, and environment templates are available in the GitHub repo’s root and /packages directories.

Supported Networks

Chain	ChainID	Relay Method	Implementation Contract	Status
Ethereum	1	EIP-7702	0x8E67a64989CFcb0C40556b13ea302709CCFD6AaD	✅ Live
BNB Chain	56	EIP-7702	0x6cF4aD62C208b6494a55a1494D497713ba013dFa	✅ Live
Avalanche C-Chain	43114	EIP-7702	0x96a8C74d95A35D0c14Ec60364c78ba6De99E9A4c	✅ Live
X Layer	196	EIP-7702 + EIP-3009 fallback	0x8D854436ab0426F5BC6Cc70865C90576AD523E73	✅ Live
Mantle	5000	EIP-7702	0x2fb2B2D110b6c5664e701666B3741240242bf350	✅ Live
Stable	988	EIP-7702	0x2fb2B2D110b6c5664e701666B3741240242bf350	✅ Live (USDT0 native)
Injective EVM	1776	EIP-7702	0x2fb2B2D110b6c5664e701666B3741240242bf350	✅ Live (USDT only)

Note: X Layer additionally supports legacy EIP-3009 fallback for USDC. Injective EVM ships USDT-only until Circle’s CCTP native USDC mainnet rollout (Q2 2026).

Contributing & Support

• Contributions: See CONTRIBUTING.md

• Issues: GitHub Issues

• License: Apache 2.0

• Integration Queries: [e-mail]

• Community Support: Telegram + Discord (links on website)

Quick Navigation

Resource	Purpose	Location
GitHub Repository	Q402 core source code	github.com/bitgett/Q402-Institutional
Quack AI Whitepaper	Architecture & integration guides	quackai.gitbook.io/docs
Architecture Overview	Protocol design and flow diagrams	/docs/ARCHITECTURE.md in repo

Summary

GitBook is your architectural and conceptual home — explaining how Q402, Governance, and RWA integrate into the AI Autonomy Stack. GitHub is your engineering workspace — hosting the live code, SDKs, facilitator logic, and deployment scripts.

Together, they provide a full-stack environment for developers, institutions, and autonomous agents to build intelligent, verifiable, and frictionless systems on-chain.