Openfort Embedded Wallets
Self-custodial embedded wallets for seamless onboarding and transactions.
Overview
Openfort Embedded Wallets give developers the infrastructure to onboard users and enable onchain transactions without making anyone start with a browser extension, a seed phrase, or a separate wallet app. The product is built by Openfort, a wallet infrastructure company founded in 2022 by brothers Joan and Jaume Alavedra that raised a $3 million seed round in 2023 led by Gumi Cryptos Capital and Maven 11, with participation from Game7, NGC Ventures, and Newman Capital. Applications can provision self-custodial wallets alongside email, phone, social, passkey, and external wallet login flows, configure the networks they want to support, and offer wallet funding for native assets, stablecoins, and other tokens.
Key management runs on OpenSigner, an MIT licensed and self-hostable signing stack that Openfort develops in the open, so teams keep their users' keys exportable and can rotate the underlying signer without changing wallet addresses. The platform bundles account abstraction through ERC-4337 and ERC-7702, session keys, paymasters for gas sponsorship, and transaction orchestration into a single SDK rather than spreading them across three or four vendors. Supported chains include Ethereum, Solana, Avalanche, Base, and BNB Smart Chain, and first-party SDKs cover React, React Native, TypeScript, Swift, and NodeJS, alongside Unity and Unreal Engine support carried over from the company's gaming origins.
Openfort is designed for financial products and consumer applications that need wallet creation, signing, and transaction experiences to feel native to the app, including fintech and stablecoin products, games, and agent driven backends that sign automatically under granular permission policies. Teams that want zero operational overhead can use the managed cloud platform, while teams with stricter infrastructure requirements can self-host OpenSigner and avoid vendor lock-in. Developers can get started from the documentation at openfort.io/docs, which covers quickstarts, wallet configuration, authentication methods, chain setup, and smart account features.
The Problem
Applications that want to put onchain assets in front of mainstream users normally have to send those users away to install a browser extension, record a seed phrase, and fund an external wallet before anything works. Teams that avoid this by adopting a managed wallet provider often trade onboarding friction for lock-in, because keys sit inside proprietary infrastructure that cannot be exported or self-hosted.
The Solution
Key Features
Embedded self-custodial wallet provisioning
Creates wallets inside the application flow alongside email, phone, social, passkey, and external wallet logins, with no seed phrase or browser extension required.
Open source, self-hostable key management
OpenSigner is MIT licensed and self-hostable, so user keys stay exportable and the underlying signer can be rotated without changing wallet addresses.
Account abstraction and gas sponsorship
Native ERC-4337 and ERC-7702 smart accounts with session keys and paymasters, so applications can sponsor gas and batch transactions on behalf of users.
In-app wallet funding
Users can fund wallets with native assets, stablecoins, and other tokens without leaving the application for an exchange or an external wallet.
Key Strengths
How Developers Use Openfort Embedded Wallets
Fintech and stablecoin products
Consumer finance applications give every user a self-custodial wallet with familiar logins and in-app funding for stablecoin balances and payouts.
Games with in-app asset ownership
Studios building in Unity or Unreal embed wallets so players hold items and currencies without leaving the game to install an extension.
Agent driven backends
Teams run server-side wallets that sign automatically under granular permission policies for automation and agent workflows.
Works Well With
Ethereum
Solana
Avalanche
Base
BNB Smart Chain
Ship faster than your competition
Free RPC across 77+ chains. Spin up an endpoint in under 30 seconds.
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Resources
Openfort documentation at openfort.io/docs covers quickstarts, embedded wallet configuration, authentication methods, chain setup, and smart account features including session keys and paymasters. First-party SDKs are published for React, React Native, TypeScript, Swift, and NodeJS. The OpenSigner key management stack and other libraries are open source at github.com/openfort-xyz, and the team can be reached through the Openfort X account or by email for integration questions.