Crypto Wallets Without Seed Phrases: MPC, Account Abstraction and AI‑Native Wallets

Traditional crypto wallets were never very practical, since their focus was always on the security of funds. Now, however, the rise of seedless crypto wallets suggests that most people are interested in a simpler alternative.

While more secure, traditional wallets placed a lot of responsibility on the users themselves, having them manage 12 or 24 random words for years, assuming they want to maintain access to the wallet. However, forgetting the phrases, losing them to phishing attacks, and alike made this approach risky. Today, pretty much only the crypto purists appreciate it, while mainstream users are either scared away or are searching for simpler alternatives.

That is why the wallet infrastructure is changing toward newer architectures, such as multi-party computational (MPC) wallets. Other popular options include AI-assisted automation and account abstraction. These systems are trying to preserve self-custody while reducing the complexity of it all, and making it accessible to ordinary users.

Why the Market is Abandoning 12 and 24-Word Seeds

The market is turning away from “traditional” crypto wallet architecture despite the fact that it enabled the crypto industry to become what it is today. The BIP-39 mnemonic standard allowed for self-custody, making it interoperable and portable. However, it also pushed massive security responsibility onto the users, as mentioned earlier.

A 12- or 24-word seed phrase became a single point of failure that protects the entire wallet. If it gets lost or exposed, the user can lose their assets, and there is nothing anyone can do to help them recover the money. There are no fraud departments to turn to or password resets, meaning that you have to be extremely careful with how you navigate the crypto sector.

This design worked fairly well when the industry was still dominated by technical users, who were comfortable with handling hardware devices and offline backups. However, it is not appropriate for mainstream adoption. It is too complex for an average user, in addition to being too risky, especially when it comes to browser and mobile wallets that are always connected to the internet.

Furthermore, security firms and blockchain analytics platforms say that compromise of private keys and seed phrase accounts for the vast majority of all cryptocurrency thefts.

Why Did The Crypto Industry Decide To Move Away From BIP-39 Seed Phrases?

The crypto industry is moving away from BIP-39 seed phrases because they put all of wallet security into a single point of failure that is managed by the user. That means that all responsibility is placed on the user, who has no training or education on how to keep their seed phrases safe. In practice, this responsibility is the reason why most wallet break-ins and crypto thefts are allowed to happen.

How Do Multi-Party Computation (MPC) Wallets Work?

Multi-Party Computation (MPC) wallets work by changing the basic structure of ownership. What this means is that they don’t simply generate a single private key that controls everything. Instead, the key is split into multiple parts that are stored on different devices. As such, these separate parts, or shares, cannot be used individually to control the wallet. Instead, they must be used together to gain access to the funds.

When a transaction needs to be signed, the wallet doesn’t rebuild the private key - instead, it uses something called a Threshold Signature Scheme (TSS). Essentially, this means that multiple independent shares work together to produce a valid signature. Each of the parties involved provides its portion of the solution, with no one being able to see the complete key.

Blockchain will still see it as a normal signature, but in reality, the ownership and control over the key is split between multiple participants.

Software vs. Hardware Key Sharding Models

MPC wallets are typically split into two camps, depending on where the secret shares are located - software layer and hardware layer.

The software layer keeps parts of the key on a combination of local device storage and remote infrastructure. For example, a part of the key may be on the user’s phone, while another is stored on the cloud, and a third piece is stored elsewhere. This is a popular model used by wallets such as Bitget Wallet and Zengo, allowing users to recover their accounts without seed phrases and relying on multi-factor identity checks and cryptographic re-computation of signing authority.

Then, there is the hardware layer, where the mathematical key is split across multiple physical items. For example, think of dedicated hardware devices or cards. Solutions like Cypherock X1 use multiple physical vault components based on Shamir’s Secret Sharing principles. That way, even if one device is lost, the remaining pieces are still safe, and are required to be able to sign in.

The Trade-offs behind MPC Security Models

While the MPC approach solves the seed phrase problem, it does not remove trust. Instead, it juust redistributes it. In the software layer, users have to trust the wallet provider to manage their infrastructure nodes and enforce the proper cryptographic protocols.

In addition, there are also certain censorship concerns. If the provider controls a portion of the signing process, they could, in theory, restrict access to the user in certain scenarios, like if there is regulatory pressure. The same is true in situations where their service goes down due to some sort of disruption.

The hardware MPC approach can avoid this, but there is a different trade-off - it introduces the need to use multiple physical devices, which leads to coordination issues. In other words, MPC wallets exchange full control for a safer, more user-friendly model, but they still have downsides.

Account Abstraction and the Shift to Smart Contract Wallets

Traditional Ethereum wallets were built using the concept of Externally Owned Account, or EOA. This is a standard account type on the Ethereum network which essentially functions as the user’s personal crypto wallet. Every action is controlled by a private key, and they can only be used to sign and send transactions. This is a simple design, but the downside is that EOAs are quite limited to basic functions and moves. As such, they cannot be given more complex rules to follow, and users also cannot sign batch actions.

However, this is something that can be changed through account abstraction. Account abstraction essentially changes the structure of the wallet and turns it into a smart contract, which can be programmed to perform some of the more complex actions. With greater capabilities, the wallet becomes more than “just a wallet,” technically turning into an application.

The most common way to implement this is ERC-4337, which is popular because it doesn’t need to change Ethereum’s base programming. Instead of adding changes to the entire protocol, this approach introduces a parallel transaction processing system that was built on the existing network.

Core Building Blocks of Programmable Transactions

The ERC-4337 model has introduced several components that changed the way transactions work. The first one worth noting is known as UserOperation. This is essentially a structured transaction object that represents intent, rather than a direct blockchain call. All operations are collected and processed by the so-called “bundlers,” which are specialized actors. They function similarly to block producers.

Smart contract wallets are in charge of validation themselves, which allows the wallet to define the rules for verifying signatures, establishing spending limits, multi-factor requirements, recovery mechanisms, and the like.

As such, the structure breaks down the process into different individual aspects (validation, execution, fee payments) and turns them into separate layers.

Why Account Abstraction Outperforms Traditional EOAs

Account abstraction allows wallets to outperform traditional EOAs by removing the “all-or-nothing” security model. Instead of using the private key to enable every action, smart contract accounts allow users to decide on different rules for the contract to follow. Users can essentially customize their experience by setting up rules like how much the wallet is allowed to spend per transaction, which smart contracts it can interact with, and more.

Recovery is also better, since rules regarding recovery processes can be embedded into the wallet’s contract through various means. As a result, losing access to the device no longer means losing all the money. The ability to set up your own rules also means that you can combine transactions into batches instead of performing each one individually.

However, there is a trade-off here as well, and it lies in complexity. EOAs became popular because they are simple. Account abstraction is much more complex in comparison, depending on smart contract logic, off-chain infrastructure, and other factors. As such, it is not an ideal solution for everyone, but if you want a programmable financial interface instead of a static key container, it is the way to go.

What Are AI-Driven “Agentic Wallets” And How Do They Work?

Agentic wallets are a new type of digital wallet that is run by AI. Through the use of AI agents, the wallet can act independently and react to market changes. Of course, it is still bound by rules introduced by the user.

Even so, the fact that they don’t have to wait on user approval when an opportunity emerges gives them a much greater chance of performing successful trades. They can decide on their own when and how to manage portfolios, conduct swaps, and even use various DeFi protocols.

There has been quite an adoption spike of agentic wallets in 2026, which suggests growing interest in automation. More and more transactions are now being initiated by wallet agents, and there are some obvious benefits here. Executions are faster, you reduce the number of missed opportunities, and there is less operational friction in volatile markets.

The user maintains control through a set of rules, but other than that, the AI is free to perform whatever action it calculates is best. As for the rules, they can include things like daily transaction spending limits, function-level verification, and restricted smart contract destination whitelisting, to name a few.

As for security, it uses secure cloud environments or Trusted Execution Environments (TEEs) to isolate permissions and protect the agent’s decision-making.

Best Seedless Wallet Options Available Right Now

If you are interested in switching over to new crypto wallets without seed phrases, there are plenty of options to choose from. Many have already left the experimental phase, and while they are still being improved and evolving, there are multiple systems ready to be used. For example:

• Tangem Wallet - Tangem uses physical cold storage via EAL6+ NFC card. Its pirate key is generated and stored in a chip, meaning that it can never leave the hardware or get exposed. Recovery is handled via a multi-card system where a backup card is used as a redundant access point. Its biggest strength is its offline security, which makes it almost immune to attacks, but you end up depending on physical hardware.
• Bitget Wallet - Bitget Wallet uses a software-based MPC architecture, which eliminates the need for a seed phrase. As explained earlier, the keys are split across a distributed system, allowing for the signing of transactions without having to reconstruct the entire key. It features native cross-chain interoperability, integrated DEX routing, and a $300 m+ Protection Fund safety net. Furthermore, AI-driven transaction simulation allows it to flag any suspicious contract interactions.
• Core Wallet - Developed by Ava Labs, it uses Seed Abstraction to replace mnemonic storage with Web2 authentication methods (like Google or Apple login). In the background, private key management is distributed across remote infrastructures managed through Cubist cloud HSMs.
• Safe Smat Account - Safe is a highly secure, modular smart contract wallet designed for multisig and institutional use. It allows programmable rules and recovery paths. Its strength lies in flexibility and transparency at the cost of complexity.
• Zengo - Zengo uses the mobile software approach, applying clear multi-party computation models alongside a multi-factor recovery network, using biometrics, email, and backup documentation to negate legacy seed weaknesses.

Choosing The Seedless Path

With the seed-based wallet approach being flawed and too complex for regular users, different seedless wallet designs emerged to offer alternatives. Each has developed its own approach to the problem, giving you the ability to choose the one that suits you best. For everyday users, password-based recovery systems and cloud-assisted MPC wallets might be the best option, since the onboarding is smooth with little friction. This makes them suitable for everyday use, since their priority is convenience, rather than full self-management, which comes with various complexities.

But, for larger balances or long-term storage - something that institutions and wealthy investors might be interested in - stronger guarantees often matter more than ease of use. For users like that, hardware-based key fragmentation might be preferable, or smart contract wallets with multisig and recovery logic that provide greater structure in how they approach security. They are far more complex, but there is no denying that they handle security much more thoroughly.