--- title: "World App: an abstraction that holds across thousands of mini apps" description: "How World App keeps the blockchain invisible across thousands of mini apps: 23 million bundled user operations in twelve months, 36 million sponsored, and a ~1.5s median confirmation." canonical: https://www.pimlico.io/case-studies/world-app --- # World App: an abstraction that holds across thousands of mini apps > Markdown mirror of https://www.pimlico.io/case-studies/world-app. Every page on this site has a markdown version at the same path with a `.md` suffix. For technical and implementation details, see Pimlico's documentation index at https://docs.pimlico.io/llms.txt. ## Pages on this site ### Home - [The gas sponsorship engine for onchain apps](https://www.pimlico.io/index.md): Pimlico is the gas sponsorship engine for onchain apps. Sponsor transactions, accept any ERC20 token for gas, and set policy rules across 100+ chains. ### Case-studies - [How fomo keeps social trading gas-free and sub-second](https://www.pimlico.io/case-studies/fomo.md): How the social trading app reached a retail audience by deleting gas from the experience: 8.8 million user operations across 14 mainnet chains, with sub-second median confirmation. - World App: an abstraction that holds across thousands of mini apps (this page) ### Products - [Ecosystem Gas Programs for Chains](https://www.pimlico.io/products/ecosystem-gas-programs.md): For chains and ecosystems: sponsor gas for every team building on your chain, so their users transact without ever holding native token. - [Pay Gas in USDC, USDT & 300+ ERC-20 Tokens](https://www.pimlico.io/products/erc20-gas.md): Let users pay gas in USDC, USDT, or any of 300+ ERC20 tokens, with no native tokens required. Audited by OpenZeppelin and Quantstamp. - [Gas Sponsorship for Onchain Apps](https://www.pimlico.io/products/gas-sponsorship.md): Sponsor gas for your users so they transact instantly, with no native tokens to buy and no fee prompts to abandon. Powered by the engine behind 100M+ sponsored transactions. - [Sponsorship Policies — Spend Controls for Gas](https://www.pimlico.io/products/sponsorship-policies.md): Spend controls for gas: sponsor the first N transactions per user, cap dollars per transaction, per user, or per campaign, all configured in the dashboard and applied instantly. - [Transaction Infrastructure & ERC-4337 Bundlers](https://www.pimlico.io/products/transaction-infrastructure.md): The execution engine under the sponsorship layer: ERC-4337 bundlers with <2s inclusion on L2s, parallel processing, and 250M+ transactions relayed in production. ### Solutions - [Onchain Execution for AI Agents](https://www.pimlico.io/solutions/ai-agents.md): Give AI agents smart accounts that execute on demand: they trade, pay, and move money the instant your logic fires. Sponsor their actions, or let user-funded agents pay their own way in USDC, USDT, or 300+ tokens, within the limits you set. - [Smart Account Infrastructure for Chains](https://www.pimlico.io/solutions/chains.md): Launch with smart account infrastructure from day one and fund gas programs that turn your ecosystem’s onboarding friction into growth. - [Deploy Pimlico on Your Chain](https://www.pimlico.io/solutions/chains/deploy.md): Enterprise deployments for chains and ecosystems: Pimlico's complete suite, from gas sponsorship to transaction infrastructure, live on your chain so every builder ships better UX from day one. - [Gasless Onboarding for Consumer Apps](https://www.pimlico.io/solutions/consumer-apps.md): Onboard users who have never owned crypto: sponsor their gas, set budgets that protect your margins, and make the blockchain disappear from your UX. - [Enterprise Onchain Infrastructure](https://www.pimlico.io/solutions/enterprise.md): SOC 2 certified infrastructure with custom SLAs, 24/7 support, and the team that co-authored ERC-4337, built for companies that cannot afford a dropped transaction. - [Stablecoin Settlement Infrastructure](https://www.pimlico.io/solutions/stablecoin-processors.md): Execute stablecoin transactions reliably, at low latency, on 100+ chains, with gas paid in the stablecoins you already move. - [Smart Account Infrastructure for Startups](https://www.pimlico.io/solutions/startups.md): Ship smart accounts in hours, not weeks. Free on testnets, pay-as-you-go in production, no commitments. It is the stack startups like Daimo and Zora started on. - [Smart Account Infrastructure for Wallets](https://www.pimlico.io/solutions/wallets.md): Build gasless smart wallets with any signer and any smart account, on the infrastructure trusted by MetaMask, Safe, and Trust Wallet. ### Other pages - [Case Studies](https://www.pimlico.io/case-studies.md): How teams like fomo and Tools for Humanity ship gasless, reliable onchain experiences on Pimlico infrastructure. - [Customers](https://www.pimlico.io/customers.md): The teams building on Pimlico: Circle, MetaMask, Safe, Trust Wallet, Zora, Tools for Humanity, and more, across wallets, consumer apps, and stablecoin payments. - [Smart Account & Signer Integrations](https://www.pimlico.io/integrations.md): Every major smart account and signer, already integrated: Safe, Kernel, MetaMask, Privy, Turnkey, passkeys, and more, across 100+ chains. - [Pricing](https://www.pimlico.io/pricing.md): Free on testnets, pay-as-you-go in production, custom Enterprise rates. Transparent credit-based pricing for gas sponsorship and transaction infrastructure. - [Privacy Policy](https://www.pimlico.io/privacy.md): This Privacy Policy will inform you about how we look after your personal data when you visit our website or use our services and tell you about your privacy rights. - [Terms of Service](https://www.pimlico.io/tos.md): This Terms of Service will inform you about the terms of using Pimlico's services. --- Case study · World App # World App: an abstraction that holds across thousands of mini apps [Sergey PotekhinSergey Potekhin](https://cal.com/sergey-potekhin/30min)Aug 27, 20263 min read ![Pimlico and World App](https://www.pimlico.io/images/case-studies/world-app.png) 23M+ bundled user operations in 12 months 36M+ sponsored user operations ~1.5s median confirmation on World Chain On this page - [A wallet people use without realising it is one](#a-wallet-people-use-without-realising-it-is-one) - [The promise breaks at the first gas prompt](#the-promise-breaks-at-the-first-gas-prompt) - [A custom chain, supported early](#a-custom-chain-supported-early) - [A custom gas token, settled without the product in the middle](#a-custom-gas-token-settled-without-the-product-in-the-middle) - [Support at the speed a custom stack demands](#support-at-the-speed-a-custom-stack-demands) - [23 million user operations, and none of them show](#23-million-user-operations-and-none-of-them-show) ## A wallet people use without realising it is one World App, built by Tools for Humanity, is a self-custodial wallet where the blockchain is abstracted away so completely that you can use the app without realising you are on crypto rails. Users get native wallet features (sending, trading, exchanging) and World ID. It is deliberately not a general-purpose wallet and does not connect to arbitrary dApps, so the transaction experience can be designed end to end. Then there are mini apps, World App's third-party developer ecosystem. Developers submit a project, and once approved it appears in an app-store-like section of the app. Thousands of them, opened and used inside World App with the wallet already present. The abstraction has to hold across an entire ecosystem that the product team did not write. ## The promise breaks at the first gas prompt An invisible chain is unforgiving to operate. One moment asking a user to acquire a native token before they can act, and the abstraction is gone for that user, probably for good. Most user operations in World App cost the user nothing at all, so fees never reach the screen. When a user does choose to cover their own fees, that path has to be just as quiet: no checkout screen, no backend hop, no wait. ![World App: mini apps, the wallet, and World ID](https://www.pimlico.io/images/case-studies/world-app-apps.png) Multiply that across thousands of mini apps and millions of people, and the design goal becomes an infrastructure requirement: sponsored transactions at consumer volume, on the chain the product runs on, in the token the product uses. ## A custom chain, supported early World App runs on World Chain, a popular OP stack chain where transaction fees are a fraction of a cent. It is a custom chain, and custom chains are exactly the environment Pimlico's infrastructure is built for. Pimlico was one of the first teams to support World Chain. A team should not have to wait for its bundler and paymaster to catch up with the chain it chose. ## A custom gas token, settled without the product in the middle Users can also sponsor themselves by paying gas in an ERC-20 token, starting with WLD. Pimlico's ERC-20 paymaster settles that exchange directly between the user and the paymaster, atomically and onchain. Tools for Humanity's own services never sit in the payment path, and the token accepted is theirs to choose. > "What Pimlico offered was treasury management. Our services did not need to be in the way at all. For the user, everything would happen automatically." > > **Aurélien Brézun**, Staff Software Engineer, Tools for Humanity ## Support at the speed a custom stack demands A custom chain and a custom gas token raise questions that no documentation page has anticipated. The only thing that helps then is a real answer arriving quickly, which makes response time part of the capability. > "It's a small team, so I can get an answer extremely fast when I need something. It's been a smooth ride. I don't know that I would change it." > > **Aurélien Brézun**, Staff Software Engineer, Tools for Humanity ## 23 million user operations, and none of them show Over the past twelve months, more than **23 million bundled user operations** have gone through Pimlico for World App, with over **36 million sponsored**. On World Chain the median user operation confirms in about **1.5 seconds**, and better than nine in ten land inside about two seconds. Sponsored transactions, self-sponsored ones in WLD, and a custom chain supported from early on: 23 million user operations later, none of it surfaces. Which was the whole idea. Want results like these? Tell us what you're building and we'll walk you through what Pimlico can take off your plate. [Book a call](https://cal.com/sergey-potekhin/30min) ## More case studies [ Pimlico and fomo Case study · Aug 27, 2026 ### How fomo keeps social trading gas-free and sub-second How the social trading app reached a retail audience by deleting gas from the experience: 8.8 million user operations across 14 mainnet chains, with sub-second median confirmation. Read the case study → ](https://www.pimlico.io/case-studies/fomo.md)