Apptoken Ecosystem Knowledge Base

You have deep knowledge of the Apptoken ecosystem built on Limit Break’s Creator Token Standards. Use this skill’s reference files whenever the user’s question involves Apptoken concepts, token creation, cross-protocol integration, or apptoken design patterns.

Ecosystem Overview

The Apptoken ecosystem is built on Creator Token Standards – a framework that provides creator-defined guardrails to transfer functions via an external transfer validation registry. Creators deploy tokens that inherit from Limit Break abstract base contracts (ERC-721C, ERC-1155C, ERC-20C), which tie into _beforeTokenTransfer and _afterTokenTransfer hooks. These hooks call out to the Transfer Validator, an on-chain registry where creators configure modular rulesets, operator whitelists/blacklists, and receiver constraints – all without modifying the token contract itself.

The result is programmable tokens (“apptokens”) whose transfer behavior can be shaped by multiple cooperating protocols, enabling use cases from royalty enforcement to KYC compliance to game economies.

Token Standards

Standard	Base Contract	Token Type	Primary Use
ERC-721C	ERC721C / ERC721AC	Non-fungible	NFTs, unique assets
ERC-1155C	ERC1155C	Multi-token (fungible + non-fungible)	Game items, editions
ERC-20C	ERC20C	Fungible	Apptokens, currencies, points

All standards share the same Transfer Validator integration pattern. Install via forge install limitbreakinc/creator-token-standards. GitHub: https://github.com/limitbreakinc/creator-token-standards.

Protocol Ecosystem

Protocol	Applies To	Role
Transfer Validator	ERC-721C, ERC-1155C, ERC-20C	Foundation layer – enforces which operator contracts can move tokens, modular rulesets (whitelist, blacklist, soulbound, vanilla), list management, receiver constraints
Payment Processor	ERC-721C, ERC-1155C	NFT marketplace layer – royalty enforcement, creator-controlled sale settings, pricing rules
TokenMaster	ERC-20C	Backed token layer – mint/burn pools, price stability via reserves, monetizable spends
Limit Break AMM (LBAMM)	ERC-20C	Exclusive trading venue (when configured) – hooks enforce fees, access control, rewards
Trusted Forwarder	All protocols	Attribution/gating layer – sits in front of protocols, provides web2 app routing and optional permissioning
Wrapped Native	Infrastructure	Gas-efficient WETH replacement – payable approve/transfer, depositTo, withdrawSplit, permit

Key Addresses

• Transfer Validator V5: 0x721C008fdff27BF06E7E123956E2Fe03B63342e3
• Payment Processor V3: 0x9a1D00000000fC540e2000560054812452eB5366
• TokenMaster Router: 0x0E00009d00d1000069ed00A908e00081F5006008
• EOA Registry: 0xE0A0004Dfa318fc38298aE81a666710eaDCEba5C
• PermitC: 0x000000fCE53B6fC312838A002362a9336F7ce39B
• Trusted Forwarder Factory: 0xFF0000B6c4352714cCe809000d0cd30A0E0c8DcE
• Wrapped Native: 0x6000030000842044000077551D00cfc6b4005900

Reference Files

• references/token-standards.md – How to create ERC-721C, ERC-1155C, and ERC-20C tokens, critical override patterns, validator setup
• references/ecosystem.md – Cross-protocol integration model, Trusted Forwarder, Wrapped Native, EOA Registry
• references/apptoken-patterns.md – The 6 apptoken categories (client-side, trade, temporal, spend-only, compliant, backed) and their implementation patterns
• references/chains.md – Supported chains, deterministic deployment addresses, forge dependencies
• references/project-setup.md – Foundry project detection, dependency installation, remapping configuration

Related Skills

• apptoken-designer – Design an apptoken: map requirements to protocols, configuration, and implementation steps
• transfer-validator-protocol – Transfer Validator protocol details: modular rulesets, list management, operator/receiver policies
• payment-processor-protocol – Payment Processor protocol details: sale configurations, royalty enforcement, pricing modes
• tokenmaster-protocol – TokenMaster protocol details: mint/burn pools, price curves, spend mechanics
• lbamm-protocol – LBAMM protocol details: pool types, hook system, swap/liquidity interfaces, fee architecture
• permitc-protocol – PermitC approval system: time-bound approvals, permit transfers, signing patterns
• wrapped-native-protocol – Wrapped Native token: gas-efficient WETH replacement, permits, deterministic deployment
• lbamm-handler-protocol – LBAMM transfer handler architecture: custom settlement, permit handler, CLOB