Introducing FunKit: the best SDK for building smart wallets.
Harness the power of account
abstraction to build groundbreaking apps.
Integrate into your project
FunKit blends advanced authentication frameworks with intuitive end-user experience. We support most popular sign-in methods, like Google, Twitter, Discord, MetaMask, and WalletConnect, expose custom signature methods, including MPC, BLS, OAuth, and passKey to create custom auth schemes. We also support third-party authentication providers like Privy, Turnkey, Web3Auth, and MagicAuth.
Two-factor authentication
Two-factor authentication
Authentication modules
Authentication modules
Account recovery
Account recovery
Session keys
FunKit's Session Keys offer precise control over wallet functionalities without exposing your primary private key. Built on our robust Auth class, these keys enable tailored permissions, adding an extra layer of security.
A unique whitelist mechanism outlines the exact contracts and functions the session key can interact with. Additionally, action and fee value limits define the maximum transaction value and fees, preventing unauthorized or costly actions.
Session keys also support lists for fee recipients and tokens, ensuring transaction fees go only to trusted addresses and interactions are limited to specified assets. This offers a balanced blend of freedom and safeguards for both users and developers.
With FunKit's Session Keys, marry flexibility with top-tier security to enhance both user experience and application capabilities.
With FunKit's Session Keys, marry flexibility with top-tier security to enhance both user experience and application capabilities.
FunKit is the only SDK that allows transactions without holding ETH by
integrating PERMIT into our paymaster contract. Gas payments using ERC-20s are simplified down to
one line of code, eliminating account rebalancing or ETH reload concerns.
Alternatively, you
can sponsor transactions and add your own custom paymaster logic. We also offer our own gas sponsor
manager and are currently building atomic cross-chain transaction sponsoring.
Gas sponsorship
Gas sponsorship
Gas payments with ERC-20s
Gas payments with ERC-20s
Seamlessly access decentralized finance. On and off ramping, swapping, bridging, and staking are all available with one line of code through aggregators. We also automatically switch providers based on stability and cost. And of course, it’s just one more line to monetize with fixed or variable pricing per transaction.
Monetization
Today many web3 applications struggle to effectively capture the value they create. Your users go on to swap on Uniswap, trade OpenSea and stake with Lido. You as the developer should capture this value. FunKit makes it trivially easy to upsell customers more features, & then charge for that usage. All in one line of code.
@AlexKFine
Monetization
FunKit simplifies monetization in your web3 applications, letting you effortlessly capture value from user activities like swaps, trades, and stakes. With just one line of code, introduce various upsells or specialized features that not only enhance user experience but also increase revenue.
Our flexible pricing modules allow you to implement either fixed or variable transaction fees, giving you full control over your revenue model. Rest assured, all fee collections are transparent and secured on-chain, increasing trust and eliminating the need for manual reconciliation.
FunKit is built for speed and scalability. Implement tiered features, subscription models, or even automated payouts to stakeholders with ease. With FunKit, monetization becomes an integral, effortless part of your app’s architecture. Say hello to a new era of frictionless, automated revenue streams.
Swaping, staking & bridging
Swaping, staking & bridging
On & off ramping
30+
Currencies
On & off ramp over 30 different
currencies,
in 74 countries, into 200+
cryptocurrencies.
On & off ramping
FunKit features modular role based access control over our smart contracts. Combine actions, create durations, or add other limits to individual users. These are fully customizable and compatible with our full suite of transaction methods. FunKit also supports session keys, providing developers a fully permissionless way to compartmentalize access and control of smart wallets to applications.
Transaction protection Enterprise feature
Institutional access controlEnterprise feature
Create sophisticated access management tailored to your organizational needs. For example, fund managers use FunKit to manage LP capital without assuming full control of the assets. This arrangement increases trust & saves time.
Investment protectionEnterprise feature
Use a Fun.xyz risk-monitoring module to automatically front-run transactions that endanger to your on-chain investments. Fun.xyz monitors for smart contract exploits, governance attacks, anomalous behavior, composability complexities and flash loan attacks. This protection is provided without you ever compromising access to your account. No third party can move funds out of your wallet, ever.
Smart contract exploit protection
Flash loan attack
protection
Governance abuse
protection.
Team roles
Create team members with defined roles.
Spending thresholds
Define a role by how much money the user can access.
Action constraints
Define a role by what actions the user can perform.
Time limits
Define a role by a duration of time.
FunKit lets you transact in three innovative ways. First, we support ERC-4337’s non-sequential nonces, meaning trustless auto-transactions with no relayer. Second, our smart wallets simplify social token transfers by supporting decentralized wallet claiming via tweets and trusted messages. And it's all available offline, making transaction initiation a breeze.
Automated actions
Automated payouts
Limit orders
NFT Mints
Your custom workflow
Automated actions
Social transfers
FunKit lets you integrate any contract or action into your wallets. We support both direct ABI integrations and WalletConnect. And everything is compatible with all major EVM chains.
Integrate any smart contract
FunKit opens up a world of possibilities by allowing you to integrate any smart contract directly into your wallet or app. Whether it’s a DeFi protocol, an NFT marketplace, or a governance contract, you can connect seamlessly via direct ABI integrations or WalletConnect. This means limitless functionality and user engagement without compromising on speed or reliability.
Compatibility is key in a decentralized world. FunKit’s multi-chain composability ensures that you’re not restricted to just one blockchain. Extend your application’s reach by supporting all major EVM chains, thereby offering your users a wider array of services and assets to interact with.
Say goodbye to cumbersome setup processes. With FunKit, smart contract integration becomes a streamlined, one-time process that requires minimal coding. Our SDK is designed for both performance and ease-of-use, ensuring that you can integrate new functionalities swiftly and securely. With FunKit, you’re not just integrating smart contracts—you’re integrating endless possibilities.
WalletConnect Support
WalletConnect Support
Multi-chain composability
Multi-chain composability
Integrate into your project
Import Wallet from
FunKit.
Create your wallet.
Run wallet.anything()
Integrate into your project
FunKit is 100% non-custodial and built on top of smart contracts. All of the logic for validating and authenticating actions on a wallet is programmatic and verifiable, and as the developer, you structure each wallet to match your user’s preferences.
Fun smart contracts were audited by QuantStamp, Secure3, and multiple independent auditors. We also have an ongoing audit with Trail of Bits and an incoming audit competition on Code Arena. Our infrastructure has been audited by Security Innovation.
For most apps, FunKit removes the need for money transmitter or qualified custodian licenses. FunKit does not hold or move funds by default, and it never makes investment decisions. Consult with legal counsel for the specifics of your app.
90/10 revenue split on all developer fees
Standard provider pricing
Unlimited private key wallets
10,000 free social wallets
1,000,000 free transactions
Negotiable revenue split on all developer fees
Revenue share with providers (on/off ramp, staking, etc.)
100,000 free social wallets
Unlimited private key wallets
10,000,000 free transactions
$5,000,000 insurance
Guaranteed response times
Dedicated support channels
Custom modules