The rise of Web3 and decentralized applications (dApps) has led to a growing demand for wallet-as-a-service (WaaS) platforms that enable developers to integrate secure, user-friendly wallets into their applications. Whether you're a blockchain startup or an enterprise exploring Web3, choosing the right WaaS provider is critical. Below, we explore five of the best wallet-as-a-service providers, each with unique features that cater to diverse business needs.

1. Safeheron

Safeheron’s core value proposition lies in its 3-of-3 MPC architecture, where private keys are split into shards held by (1) the client, (2) Safeheron, and (3) Slowmist—a third-party security company. This arrangement adds an independent participant to the signing process, aiming to reduce single points of compromise.

Key Features

Recovery & Redundancy: The platform provides an offline recovery tool and a recovery phrase, ensuring that you can regain control even if one or more parties become inaccessible.

Automation & Gas Management: Features like auto-sweep and gas refills let you consolidate funds from multiple addresses and replenish gas wallets without manual intervention.

Developer-Focused: Safeheron maintains open-source repositories for its MPC protocols and offers thorough API documentation. This openness appeals to tech-oriented businesses wanting to verify and customize wallet workflows.

Security & Compliance: The company has undergone extensive audits and provides TEE (Trusted Execution Environment) security measures. They also integrate AML/KYT solutions through partners such as MisTrack (by Slowmist) and Chainalysis.

Pros ✅

Independent 3rd-Party Shard

Slowmist’s participation strengthens security and transparency.

Open-Source Approach

Offers deeper visibility into code and fosters a collaborative ecosystem.

Flexible Features

Auto-sweep, gas top-ups, TEE environment

Cons ❌

Limited Support Hours

Available Mon–Fri, 9–6pm SGT, which might not suit teams needing 24/7 assistance.

Self-Hosted SDK Complexity

Building a custom wallet interface or policy engine using their SDK requires development resources.

Pricing Basics

Safeheron typically charges based on monthly outgoing transaction volume, plus a small fee per additional wallet. Once you surpass your volume threshold, there will be extra transaction charges. Enterprise clients can opt for a more customizable MPC node setup with higher monthly fees.

2. Cobo

Cobo caters to a wide range of user requirements by offering full custody, MPC, or a hybrid model. This flexibility lets businesses choose how deeply they want to manage their private keys and security processes:

Key Features

Flexible Custody Models: Cobo supports both Full Custody—where Cobo retains complete control of private keys with robust internal controls and external insurance coverage (including providers like OneDegree)—and MPC/Hybrid Custody, which offers clients shared key management for added flexibility.

MPC with Disaster Recovery: In MPC/Hybrid setups, key shares can be distributed between Cobo and clients, with an additional offline backup shard held by a trusted third party—such as Coincover or Nemean—strictly for disaster recovery purposes. This approach enhances resilience while preserving autonomy and operational efficiency.

DeFi & CEX Integrations: Cobo offers dedicated tools like Argus (for streamlined DeFi operations) and Superloop (for direct connections to centralized exchanges like Bitget), enabling seamless movement between CeFi and DeFi environments—ideal for frequent traders or teams managing cross-platform strategies.

Pros ✅

Pro: Multiple Custody Choices

Tailor your security model to match internal compliance or user preferences (e.g., full custody vs. MPC).

Pro: Insurance & DR (Disaster Recovery) Key Options

Partnerships with Coincover, OneDegree, or self-managed solutions.

Pro: DeFi & CEX Tools

Streamline cross-platform trading with Argus and Superloop.

Cons ❌

Complex DR Setup

Holding your own disaster recovery key can be beneficial but adds responsibility and operational overhead.

Longer Settlement for Large Withdrawals

Accessing warm or cold wallets can take hours to 1 day, especially outside working hours (SGT).

Potential API/Call Limits

You may need to carefully plan around usage thresholds.

Pricing Basics

The specifics often depend on API rate limits, API call limits, and the number of addresses you require. Businesses can negotiate directly with Cobo for volume-based or custom pricing. While there’s no strict cap on total AUM, the settlement times can vary by wallet tier.

3. Liminal

Liminal offers a feature-rich wallet infrastructure designed for scale. Its platform supports high-volume operations—like exchanges, gaming platforms, and other businesses handling frequent deposits—through robust automation, semi-custodial wallet structures, and value-added capabilities like staking directly from vaults. Liminal also provides white-labeled wallet solutions, allowing businesses to customize and brand their own wallet experiences without building from scratch.

Key Features

Automation & Smart Refill: Liminal supports sweep, auto-consolidation, and pre-signed transactions to refill hot wallets based on conditions (like a low balance or a set time interval).

Gas Optimization: For EVM chains, Liminal touts up to 15% gas fee savings due to their retrying and fee adjustment algorithms.

Semi-Custodial: Liminal doesn’t currently offer full hosting of separate MPC shards, so if a fully non-custodial setup is a strict requirement, you may need to explore complementary solutions. That said, Liminal does operate and maintain its own node infrastructure across supported chains to ensure reliable and seamless on-chain activity.

Pros ✅

Massive Scalability

Truly unlimited addresses and users

Automated Sweeps & Refill

Reduces the need for manual intervention.

Gas Management

Automatic fee optimization for EVM-based transactions.

Cons ❌

Not Fully Non-Custodial

For more advanced MPC setups, Liminal might not meet every requirement.

Dependence on Liminal’s Infrastructure

If you have specialized node or on-prem requirements, you’ll need to explore custom solutions.

Pricing Basics

Liminal offers transparent monthly fees based on outgoing transaction volumes, with a small fee applied if you exceed your plan’s threshold. There are no extra charges on the number of addresses, users, or AUM.

4. Fireblocks

Fireblocks is often considered among the top-tier institutional providers due to its 3-of-3 MPC-CMP technology, high transaction throughput, and robust ecosystem connections.

Key Features

MPC-CMP: Fireblocks’ MPC structure is such that custody is shared between the platform and the client. Typically, clients control one key shard—often via a secure mobile or hardware device—while Fireblocks manages the remaining two within its secure infrastructure. Their proprietary MPC-CMP protocol is designed for speed, delivering signing performance up to 8x faster than traditional MPC—making it well-suited for high-frequency and time-sensitive transactions.

Policy Engine & Tiered Workflows: You can configure different wallet tiers (hot, warm, cold) with unique approval processes. Cold wallet transactions, for example, might require an offline QR code-based sign-off.

Blockchain Support: Fireblocks supports 50+ blockchains, including most major Layer 1s. Additionally, compliance tools like Elliptic and Chainalysis are integrated directly, streamlining your regulatory responsibilities.

Fireblocks Network: Allows for direct connections with partner liquidity providers, custodians, and service providers—though you’ll still need to pass KYC/KYB as needed.

Pros ✅

Faster Signing Speeds

MPC-CMP significantly reduces transaction signing time.

Highly Customizable Policy Engine

Detailed workflows for hot, warm, and cold storage.

Large Ecosystem & Compliance

50+ blockchains, built-in AML, KYC, and broad partner network.

Cons ❌

2 Shards with Fireblocks

Some organizations prefer more decentralized key distribution.

Pricing Basics

Fireblocks typically provides custom quotes based on transaction volume, number of wallets required, and integration complexity. Larger enterprises may pay more for advanced features, dedicated support, or tailored compliance processes.

5. CoinsDo

CoinsDo offers a non-custodial approach to Wallet-as-a-Service, where businesses retain full control over their private keys.

Key Features

The platform revolves around three core modules:

CoinGet: Streamlines deposit workflows by allowing unlimited address generation and automated fund consolidation.

CoinSend: Handles 24/7 payouts/withdrawals, triggered automatically based on user requests.

CoinSign: Provides a secure signing service where only you hold the keys—no shared custodial arrangement.

Because CoinsDo is purely a technology provider (not a licensed custodian), you maintain direct possession of cryptographic credentials at all times. This setup removes counterparty risk, but it also puts the onus on you to manage key backups, security protocols, and compliance requirements.

Pros ✅

Full Private Key Control

You’re never reliant on a provider or third party to access or sign transactions.

Lower Migration/Recovery Costs

Since you hold the private keys, switching providers or recovering from backups doesn’t require third-party coordination.

Unlimited Growth

API usage, wallet addresses, and user accounts are unrestricted, allowing for easy scalability.

Automatic Token Sweeps

CoinsDo can automatically consolidate funds from multiple addresses; you only pay gas fees (except on TRX/TRC20, which may be zero).

Instant Settlement

Transactions broadcast immediately once you sign—no waiting on warm or cold wallet schedules.

Con ❌

No Built-In Insurance

Non-custodial solutions typically don’t offer direct coverage; you bear the responsibility for securing private keys.

No Off-Chain Settlement

Unlike some custodial networks that enable off-chain transfers between clients, CoinsDo require on-chain execution.

Manual Compliance or Partnerships

Does not include out-of-the-box KYT/AML integrations. Businesses with regulatory obligations must arrange their own compliance solutions.

Pricing Basics

Subscription starts at $2,999 and covers the non-custodial infrastructure, with no additional per-wallet or per-address fees. There are no rate limits or extra charges for creating additional wallets or addresses.

Final Thoughts

Selecting the best wallet-as-a-service provider depends on your business needs. Whether it's robust security, scalability, or ease of use, these five providers stand out in 2025 as leaders in the WaaS space. Analyze your requirements, evaluate your user base, and choose a platform that aligns with your goals.