ERC721/ERC404 vs. ERC20
🧬 ERC721 / ERC404 vs. ERC20 Agents
🧠 Why It Matters
Not all agent tokens are created equal.
Most “agents” today on platforms like Virtuals are launched as ERC20 tokens — fungible and tradeable, but lacking true ownership or programmability. At StrikeBit, we migrate and launch agents as ERC721 or ERC404 tokens, enabling onchain identity, upgradability, and co-ownership.
📊 Comparison Table
Fungibility
Fully fungible
Non-fungible (unique ID)
Fungible + NFT hybrid
Ownership Representation
Balance-based
Token ID ownership
NFT with fractional ownership
Upgradeability
❌ Not native
✅ MAP-compatible modules
⚠️ Experimental module support
Programmable Identity
❌
✅ (Ownable + Upgradable)
✅ (Wrapped logic optional)
Claimable by Wallet
❌
✅ One NFT per holder snapshot
✅ If wrapped & tokenized
Governance Rights
Weight-based votes
NFT-gated logic
Fraction-weighted logic
Visual Identity
❌ Generic
✅ Customizable metadata
✅ Hybrid visuals + token
Marketplace Tradability
On DEX only
On NFT marketplaces
On DEX + NFT marketplace (future)
Integration into UI/UX
Difficult (no metadata)
Easy (image, metadata, logic)
Limited (still evolving)
🔗 Why ERC721?
ERC721 agents unlock:
Co-ownership & scarcity — each agent is unique
Upgrades — logic can be added or modified via StrikeBit’s Modular Agent Protocol (MAP)
Visual presence — metadata, names, avatars
Identity across platforms — integrate easily with wallets, games, and Telegram bots
Ownership-based access — token-gate tools, chat, or alpha features
🧪 When to Use ERC404?
ERC404 is an experimental standard that blends fungibility and NFT-based identity. On StrikeBit, we use it in very specific cases where:
An agent has a massive token supply (e.g., 1B tokens)
The agent needs fractional NFT trading
Developers want to offer ERC20 liquidity but enable NFT airdrops, skins, or claim logic
⚠️ ERC404 agents are not suited for modular upgrades yet and have higher complexity. They are best used for liquidity-rich, community-massive agents that need both tradability and minimal visual identity.
⚖️ StrikeBit’s Position
We believe ERC721 is the best format for long-term agent ownership — offering modularity, tradability, and NFT-native integration.
ERC404 is supported only for select agents where the hybrid model makes sense (e.g., $HUB or AIXBT), but ERC20-only agents offer no meaningful ownership or composability in our ecosystem.
🔑 Summary
If you want to:
Own an agent → Use ERC721
Fractionally share a meme-style agent → Consider ERC404
Speculate with no ownership → Stay on ERC20
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