MetaKeep

MetaKeep is an enterprise Web3 infrastructure platform that removes the friction standing between mainstream users and blockchain applications. Built by Passbird Research, Inc. and founded in 2021, the platform operates as a headless Hardware Wallet-as-an-API (WaaAPI), enabling developers to provision hardware-secured, self-custodial crypto wallets for their users through a single API call — identified by nothing more complex than an email address.

The Problem MetaKeep Addresses

Traditional Web3 onboarding forces users to download browser extensions, write down seed phrases, manually approve transactions, and hold native tokens to pay gas fees. Each step represents a point of failure that deflects non-crypto-native users. For enterprise applications — gaming studios, fintech platforms, luxury asset marketplaces, and real-world asset (RWA) protocols — the cumulative drop-off is severe. MetaKeep attacks every one of these friction points simultaneously, positioning itself as invisible infrastructure: the wallet functionality is there, but the user never has to know it.

How It Works

The integration path is deliberately minimal. Developers initialize the SDK with an application ID, call .getWallet() using any user identifier (email being the most common), and receive a fully functional wallet backed by hardware-grade security. Transactions can then be executed without requiring the end user to sign anything manually or hold gas tokens.

Behind the scenes, MetaKeep's wallets are backed by FIPS 140-2 Level 3 Hardware Security Modules (HSMs) and Trusted Execution Environments (TEEs). Private keys are generated and stored within HSM-backed enclaves, meaning the cryptographic material never leaves hardened hardware. The model is self-custodial — MetaKeep does not hold keys on behalf of users, and the company cannot access funds — while the user experience resembles a simple email-linked account. Even if a user loses their device, the wallet persists and is recoverable.

The company describes its current offering as Generation 3 Wallet Infrastructure, rebuilt from scratch to support infinite scalability and transaction throughput, with a hardware root of trust that the team considers the highest security bar for cloud-based wallet solutions.

Solana Integration and Lambda Engine

MetaKeep provides first-class support for Solana through its Solana Lambda product, a runtime and API layer that allows developers to deploy smart contracts and execute transactions at enterprise scale without managing the underlying operational complexity.

Solana Lambda handles gas abstraction completely: neither the application developer nor the end user needs to hold SOL to pay transaction fees or account rent. MetaKeep covers those costs and invoices developers monthly. Solana Devnet usage remains perpetually free. The platform targets approximately 65,000 peak transactions per second in throughput, backed by redundant infrastructure across QuickNode, Alchemy, and reserved nodes, with a stated reliability target of 99.999% uptime.

Intelligent fee management is built in. AI and statistical models dynamically price priority fees to keep transactions competitive during network congestion, with automatic surge protection against fee volatility. The system also handles nonce management, transaction retries, parallelization, and third-party RPC outages autonomously — removing the operational overhead that typically makes enterprise blockchain deployments expensive to maintain.

For EVM chains, MetaKeep offers an analogous EVM Lambda service supporting smart contract invocation, batch operations, and transaction import. Both Lambda products work transparently with already-deployed contracts, requiring no contract modifications.

Key Features

• Invisible wallet creation: Any user identifier becomes a wallet in one API call, no seed phrases, no browser extension required
• HSM/TEE hardware security: FIPS 140-2 Level 3 HSMs back every wallet with military-grade key storage
• Self-custodial architecture: Users own their keys; MetaKeep holds no custody over assets
• Gas abstraction: Solana and EVM Lambda products eliminate gas fee management for developers and end users
• Multi-chain support: Native Solana and EVM compatibility with a single SDK
• Platform coverage: SDKs for Web (JavaScript), Android, iOS, React Native, and Flutter
• AI-powered operations: Automated infrastructure management for fee optimization, retries, and outage handling

Ecosystem Adoption and Customers

MetaKeep reports powering more than a quarter of a billion dollars in assets under administration since achieving production stability in 2022. Notable integrations span multiple sectors of the Solana and broader Web3 ecosystem.

GameShift, Solana Labs' platform for blockchain game developers, uses MetaKeep to provide wallet infrastructure that lets players interact with on-chain assets without needing to understand cryptocurrency. Coinflow, a fiat-to-crypto payment processor, relies on MetaKeep for wallet provisioning. NFT marketplace MakersPlace, luxury asset tokenization platform Baxus, and identity infrastructure provider Civic are among documented integrations. MetaKeep also partnered with SKALE Network to extend its key management approach to Ethereum-compatible layer-2 infrastructure, and MetaWorks Platforms integrated MetaKeep for a Web3 tap-to-pay digital wallet product.

The platform has extended its reach to AI agents, supporting programmatic wallet creation and signing for bots and automated systems — a capability that positions MetaKeep within the emerging agentic Web3 stack.

Team and Backing

MetaKeep was co-founded by Naga Samineni and Rohan Sharma. The team includes engineers with backgrounds at Diem (Meta's blockchain project), WhatsApp Pay, Google, Microsoft, and X (formerly Twitter) — giving the company credibility in both large-scale payments infrastructure and cryptographic systems.

The company has received investment from Backend Capital, Headline, Linden3 Ventures, Plassa Capital, and Unshackled Ventures. Naga Samineni serves on the advisory board of MetaWorks Platforms as chief blockchain security advisor, reflecting MetaKeep's role as a strategic infrastructure layer rather than a consumer-facing product.

Positioning in the Solana Ecosystem

MetaKeep occupies a distinct niche in the Solana ecosystem: it is not a user-facing wallet like Phantom or Solflare, but rather B2B infrastructure that enables other applications to offer wallet functionality without building or operating it themselves. The value proposition is most compelling for applications targeting users with no prior crypto experience, where seed phrase friction would kill conversion entirely.

The company's stated 500x higher conversion claim — comparing applications with and without seed phrase friction — reflects the core thesis: that the biggest obstacle to Web3 adoption is not the technology itself but the user experience imposed by conventional key management. MetaKeep's approach treats wallets as a managed API service with the security guarantees of hardware infrastructure, aiming to make the Solana ecosystem accessible to the next wave of mainstream users through the applications they already use.