Portal

Portal is a developer platform that allows businesses to embed non-custodial cryptocurrency wallets and stablecoin payment capabilities directly into their applications. Founded in 2022 by alumni of Visa, Brex, Segment, and Blend, the company built its infrastructure around a core belief that consumer-grade onboarding and institutional-grade security are not mutually exclusive. Payment platforms, fintech apps, exchanges, and remittance services can integrate Portal's SDKs or REST APIs to give their users self-custody wallets without requiring seed phrases, dedicated hardware, or deep blockchain knowledge from their customers.

MPC Technology and Key Architecture

Portal's wallet infrastructure is built on Threshold Signature Scheme Multi-Party Computation (TSS MPC), a cryptographic approach that distributes private key material across multiple parties so no single entity ever holds a complete signing key. The system operates on a 2/2 design: one key share belongs to the user and one to Portal. Neither share is sufficient to authorize a transaction on its own, and the Portal-side share is protected within AWS Nitro secure enclaves, which are Trusted Execution Environments (TEE) that keep the key material isolated from Portal's own infrastructure.

This architecture means Portal itself cannot move funds unilaterally, while users retain practical self-custody without managing seed phrases. Recovery options use familiar web2 patterns: passkeys, cloud storage backups, or PIN-based recovery. The platform also includes a cryptographic eject feature that allows businesses or users to migrate key material out of Portal's infrastructure entirely if needed, which the company positions as a disaster recovery guarantee.

Because TSS MPC requires ECDSA and EdDSA signature support rather than EVM-specific smart contract constructs, Portal can support blockchains with fundamentally different signature schemes from the same infrastructure. The platform currently covers more than 100 networks, including Solana, Bitcoin, Ethereum, and EVM-compatible chains.

Products and Developer Tooling

Portal ships in two primary forms: client SDKs and a server-side REST API called the Enclave MPC API.

The SDKs are available for iOS, Android, React Native, and web. They handle key generation, signing, transaction construction, and backup flows, and are designed so a developer can complete a frontend integration in under a day. Portal advertises signature speeds of up to 1.5 seconds per operation.

The Enclave MPC API combines MPC cryptography with the AWS Nitro TEE and is aimed at platforms that want server-side key management without running their own secure enclave infrastructure. It allows integration without shipping a mobile SDK, which suits treasury operations, exchange back-ends, or any workflow where the end user does not interact with a mobile device.

Beyond wallet management, Portal provides Account Abstraction features for EVM chains: gas sponsorship, transaction batching, and programmable approval workflows that let businesses define custom transaction policies. Token swaps are built into the platform for cross-asset exchange within the embedded wallet. On Solana, Portal offers a Fee Sponsorship module that covers on-chain transaction costs on behalf of users, which the company targets at applications onboarding users who have no SOL balance to begin with.

Supported Tokens and Chains

Portal's chain-neutral architecture means supported assets are determined by the underlying network rather than a Portal-managed whitelist. On Solana specifically, the platform handles SPL tokens alongside SOL itself, and the EdDSA signature support required by Solana's ed25519 curve is built into Portal's core cryptographic layer.

Stablecoins are a primary use case across Portal's customer base. The company has promoted USDC, USDT, and other stablecoins as the main payment medium flowing through its infrastructure, consistent with the product positioning as stablecoin finance infrastructure.

Security and Compliance

Portal holds SOC 2 Type 2 certification, which covers security, availability, and confidentiality controls for its infrastructure. NCC Group, an independent security firm, conducted an external code review and audit of Portal's implementation and mobile SDKs, with a focus on MPC configurations, key share handling, and underlying cryptography. Kudelski Security separately audited the open-source cryptographic library that Portal's MPC implementation builds on.

The platform includes a Security Firewall module that screens transactions for known scam patterns and allows businesses to configure approval workflows that block or flag suspicious on-chain activity before signing occurs.

Team and Background

Portal was co-founded in 2022 by Raj Parekh, who had previously served as Director of Global Crypto Product at Visa. The founding team also included Parsa Attari, David Scrobonia, and Rami Shahatit, drawing on backgrounds in payments infrastructure, engineering, and operations from Visa, Brex, Segment, and Blend.

In July 2025 the Monad Foundation acquired Portal. Parekh moved to the Monad Foundation as Head of Payments and Stablecoins, while Attari became CEO, Scrobonia CTO, and Shahatit COO of the operating entity. Portal continued as a wholly owned subsidiary and remained chain-neutral following the acquisition; the company's APIs and SDKs continued to serve multi-chain customers. The acquisition was framed around complementary infrastructure: Portal's developer platform could benefit from Monad's high-throughput, low-latency architecture for stablecoin settlement, while Monad gained a payments-focused team with enterprise customer relationships.

Companies using Portal's infrastructure to date have included PayPal, Bitso, Wonderfi, Rally, Wigwam, and 0xPPL, among others.

Solana Integration

Portal's Solana support covers the full SDK and API surface: key generation, signing, SPL token transactions, and the Solana Fee Sponsorship module. The company worked with Colosseum, Slingshot, and Metawealth as launch partners when it announced Solana embedded wallet support, giving the Solana-native ecosystem access to Portal's wallet infrastructure without seed phrases or on-chain balance requirements for new users.

The Fee Sponsorship feature on Solana allows businesses to absorb transaction costs for their users, addressing one of the practical friction points in onboarding Web2 users into Solana applications. Batched transaction support, announced in mid-2026, extends this by allowing multiple operations to be signed and submitted in a single round-trip, reducing both latency and the number of user-facing signature prompts in complex flows.