Web3 Wallet SDK Ecosystem Overview: Expanding Capabilities May Become a Future Trend
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Web3 Wallet SDK Ecosystem Overview: Expanding Capabilities May Become a Future Trend
In the early stage of the industry, the landscape is not yet defined.
Navigating Web3 tides with focused insights
Author:Duke
Guiding Web2 users to create a wallet is the starting point and key to mass adoption
For a long time, achieving mass adoption will remain a powerful narrative in the web3 world.
The hallmark of successfully guiding Web2 users into web3 is enabling them to own their first crypto wallet.
In short, how to get Web2 users to create a wallet will be the opening move and crux of the mass adoption narrative.
Integrated business scenarios & wallets represent the paradigm for mass adoption
The boundary between Web2 and web3 is becoming increasingly blurred. Application value based on real-world use cases will become the key metric for evaluating web3 projects.
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Stepn's explosive growth attracted global attention from many non-crypto users, injecting new vitality into the web3 ecosystem.
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Recently, Power of Women also secured the top spot on the U.S. Google Play Store's overall game ranking.
Looking at these two breakout products, an integrated product structure combining business scenarios with wallet functionality appears to be emerging as the standard.
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Business scenario is the reason users want to come (demand),
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Wallet integration is the critical factor enabling user access (barrier).
An all-in-one (integrated) business scenario & wallet will be the standard form for breakout products.
How to provide wallet services to users?
When a product wants to implement wallet functionality, there are typically several approaches:
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Chrome extension wallets: Represented by Metamask, suitable for PC-based web applications;
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WalletConnect: A third-party app-dependent connection method requiring users to install external apps;
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SDK: Integrated solution;
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In-house development: Self-developed wallets based on web or native platforms, which have high development barriers.
Based on the above arguments, integrated business scenarios & wallets that do not rely on third-party products will gradually become mainstream. Combined with the high costs associated with in-house wallet development, I believe SDK wallets—wallet software development kits—will see increasingly widespread application.
Categories of SDK Wallets
Ownership Rights
Returning to the broader wallet category, based on private key ownership rights, wallets can be divided into self-custodial, hybrid custodial, and fully custodial wallets.
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Self-custodial wallets: The most common type, also known as "mnemonic phrase wallets." Trust is placed in the application or hardware provider.
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Hybrid custodial: Typically refers to low-barrier wallets using two-factor authentication. Simply put, users and applications each hold part of the private key, placing trust in the application.
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Custodial wallets: Trust is placed in a third-party custodian institution.
Within the SDK wallet space, products primarily focus on self-custodial and hybrid custodial (low-barrier) wallets.
Technical Categories
Product Form: Web Applications
- JavaScript
Product Form: App Applications
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Android
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iOS
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React Native (cross-platform development framework)
Product Form: Games
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Unity
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Unreal Engine
Common Product Capabilities of SDK Wallets
Account Creation or Recovery (Authentication Service)
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Self-custodial wallets;
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Creating wallets via backup mnemonic phrases, recovering wallets by importing private keys (or mnemonics); Hybrid custodial wallets;
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Most low-barrier wallets allow centralized identity registration and support recovery.
Asset Management
Display of multi-chain tokens and NFTs. Receiving and sending assets.
In-app Payments
Payments as a universal product module, integrated with application scenarios to enable in-app payments. Combined with relayers and other gas fee reduction strategies, this further lowers operational barriers.
Overview of SDK Wallets
Metamask
An SDK recently launched by the industry-leading wallet provider.
SDK Category
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Custodial wallet;
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Supports JavaScript, Android, iOS, React Native, Unity, Unreal Engine;
Features
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Built on Metamask—leveraging its strong user base, consistent wallet experience, and high trustworthiness;
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Recently launched, currently in testing phase.
Development & Applications
Recently launched, currently in testing phase.
Particle Network
Particle Network is a full-stack, data-driven, composable Web3 data and development platform, including an SDK wallet module.
SDK Category
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Hybrid custodial wallet (low-barrier wallet);
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Supports Android, iOS, Unity, JavaScript.
Features
1) Full-stack development platform, offering authentication, wallet, NFT, node, and other modular services.
Development & Applications
- Power of Women
Sequence
An integrated web3 developer platform and smart wallet for Ethereum + EVM ecosystems.
SDK Category
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Hybrid custodial wallet (low-barrier wallet);
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Android, iOS, Unity, Unreal Engine.
Features
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Uses hybrid custody and implements wallet functions through smart contracts;
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Strong expansion capabilities, offering modules such as Swap, nodes, and gas fee reduction.
Development & Applications
- Skyweaver
BloctoApp
SDK Category
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Hybrid custodial wallet (low-barrier wallet);
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JavaScript, Android, iOS, Unity.
Features
Includes gas fee reduction, multi-currency payment, and other modules.
Coinbase
SDK Category
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Self-custodial
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iOS, Android
Features
1) Leverages Coinbase’s strong user base
Low-barrier wallet SDKs are the future trend
As previously stated, integrated business scenarios & wallets represent the paradigm for mass adoption, with the core focus being minimizing user barriers.
Low-barrier wallets offer Web2-like experiences such as no mnemonic phrases and social account logins, further reducing entry thresholds.
Therefore, combining low-barrier wallets with SDKs will be the future trend in lowering user barriers.
Core capabilities are foundational; extended capabilities are the future
SDK wallets are still in early development stages, with products primarily focused on delivering basic functionalities.
Basic capabilities of SDK wallets can be summarized as follows:
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Multi-platform support: including Android, iOS, JS, Unity, etc.;
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Multi-chain support: EVM-based chains as foundation, others as advanced;
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Asset tracking and payments;
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Token and NFT display with in-app payment functionality.
Core capabilities are foundational, providing the essential baseline for product strength and remaining critically important at this stage.
Extended capabilities are the future, key differentiators for competitiveness going forward, such as:
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Swap
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NFT Marketplace
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Gas fee reduction services
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Multi-currency payments
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Node services
Early industry stage, no clear leaders yet
Returning to the broader wallet category, self-custodial, low-barrier, and contract-based wallets are all in early development stages, with no dominant market格局 yet formed.
The SDK wallet niche is also in a blue ocean phase—receiving insufficient attention and lacking established business models. This explains why the main entities behind these products are either consumer-facing client wallets or developer platforms offering multiple services, with SDKs treated more as value-added features rather than core business lines.
The SDK wallet niche, riding on the broader wallet industry's growth, will gradually emerge as a hot sub-sector.
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