Basic Attention Token

About Basic Attention Token (BAT)

What Is Basic Attention Token (BAT)?

Basic Attention Token is an Ethereum-based token built to pay for user attention in digital advertising. It is the settlement asset inside Brave, a privacy-focused web browser: users who opt in to Brave Rewards can earn BAT for viewing privacy-preserving ads, and can pass that BAT to the creators and sites they use. The official description is that BAT "tokenizes the attention economy, introducing new ways for users, advertisers, and creators to earn, engage, and transact." Unlike most tokens, BAT is attached to a shipping consumer product with a large existing user base rather than to a protocol seeking one.

Official resources:

• BAT site: https://basicattentiontoken.org/
• BAT FAQ: https://basicattentiontoken.org/faq/
• Brave: https://brave.com/
• Brave Rewards: https://brave.com/brave-rewards/
• Whitepaper: https://basicattentiontoken.org/static-assets/documents/BasicAttentionTokenWhitePaper-4.pdf
• Source code: https://github.com/brave-intl
• X: https://x.com/AttentionToken

Who Founded Basic Attention Token? (History)

BAT comes from Brave Software, founded in 2015 by Brendan Eich, the creator of JavaScript and a co-founder of Mozilla, and Brian Bondy, previously of Khan Academy and Mozilla. Eich serves as Founder and CEO, Bondy as Founder and CTO.

The token launched in a public sale on May 31, 2017. Per the official FAQ, "One billion BAT was sold. In addition to the tokens sold, we created a development team pool of 200 million tokens. Finally, we created a user growth pool (UGP) of 300 million BAT," for a fixed total of 1.5 billion. BAT is an ERC-20 token with 18 decimals at contract address 0x0D8775F648430679A709E98d2b0Cb6250d2887EF, and it also exists as an SPL token on Solana, which Brave uses for self-custody Rewards payouts.

Brave has published successive BAT roadmaps since then. The current one, Roadmap 4.0, is the largest change to the model since launch and is covered below.

How Basic Attention Token Works

The core insight is that ad targeting does not require a server to know who you are. In Brave, ad matching happens on the device. The official Rewards page states that "this matching is hidden to Brave: it only happens on your device, and no personal data reaches Brave's servers." The browser learns preferences locally and shows occasional relevant ads, historically as new tab page images and system notifications rather than as banners injected into pages or as video pre-roll.

Users opt in by enabling Brave Rewards from the BAT icon in the address bar. When they view eligible ads, they receive BAT, and Brave states that "users earn a share of the revenue greater than or equal to Brave's share for the eligible ad." Earned BAT can be sent to registered creators. Brave tallies the time and attention spent on each site so that contributions can be distributed proportionally, and verified creators are marked in the browser interface.

Under Roadmap 4.0, this is shifting. Brave has said the notification ad unit will "begin a gradual sunset by the end of 2026," moving toward an Offer Wall model built around brand partnerships and loyalty tiers, alongside a set of payment products described next.

Key Ecosystem Components

• The Brave browser, with built-in ad and tracker blocking, and its own independent search index in Brave Search.
• Brave Rewards, the opt-in system through which users earn BAT and support creators.
• Brave Creators, the registration program that lets sites and channels receive contributions.
• A unified Brave Wallet that brings saved traditional payment methods, self-custody multi-chain crypto accounts and Brave Rewards into one interface.
• BravePay, described as "a stablecoin protocol layer designed around self-custody, privacy, and ease of use," with peer-to-peer transfers via .brave addresses.
• The Brave Rewards Card, a virtual and physical payment card powered by BravePay that generates BAT rewards on purchases.
• The Creator Contribution Protocol, under which registered creators receive micro-royalty payments when participating AI products access their content.
• Support for x402 and the Machine Payments Protocol, enabling autonomous agent payments in the browser.

BAT Token Utility

BAT is the unit of account for attention inside Brave. Users receive it for viewing ads. Users spend it supporting creators. Creators receive it and cash out through supported providers. Advertisers fund campaigns that ultimately pay out in it.

Roadmap 4.0 adds a second, more direct link between Brave's business and the token. Brave has stated that revenue from Brave Wallet features, the Brave Rewards Card and BravePay "will fund BAT buybacks that support user rewards," routed through the BAT User Growth Pool Reserve. That is a demand mechanism tied to product revenue rather than to speculation, though the percentage is set by Brave rather than fixed in code.

BAT has no staking, no gas function and no on-chain governance. It is a fixed-supply ERC-20 token whose usefulness comes entirely from the application layer built around it.

What Makes Basic Attention Token Unique?

BAT is one of very few tokens from the 2017 era whose product actually shipped and kept shipping. The browser exists, the ads run, the payouts happen, and the company has published a continuous roadmap for close to a decade. The technical differentiator, local on-device ad matching, remains genuinely unusual: it produces relevant advertising without building a cross-site profile on a server, which is the opposite of how mainstream ad tech works.

How Basic Attention Token Differs from Similar Projects

Audius and similar creator platforms monetize a specific content vertical. Theta Network optimizes video delivery infrastructure. Mask Network layers crypto functionality onto existing social platforms. Status pairs a token with a messenger. BAT is different in that its token is embedded in general-purpose web browsing, the single largest surface on the internet, and its counterparties are advertisers rather than fans or viewers. The trade-off is that BAT's fortunes are tied to one company's product decisions to an unusual degree.

Use Cases of Basic Attention Token

• Earning a share of ad revenue for opting in to privacy-preserving advertising.
• Supporting websites, YouTube channels and other verified creators without a subscription.
• Receiving creator income from users and, under the Creator Contribution Protocol, from AI products that use published content.
• Earning rewards on everyday spending through the Brave Rewards Card.
• Serving as the funded reward asset behind Brave's payment and wallet products.

How Basic Attention Token Is Secured

BAT is a fixed-supply ERC-20 token on Ethereum. There is no minting function and no admin key that can inflate it, so the token contract itself has been stable and unchanged since 2017 and inherits Ethereum's security. Client-side code for the ledger, publisher payouts and related infrastructure is published publicly under Brave's engineering organization, which allows outside review of how attention is measured and paid.

The practical risk is not at the token layer. It sits with custody of earned balances, whether at a Rewards custodial partner or in a self-custody wallet, and with the usual token approval hygiene when interacting with decentralized exchanges.

Risks and Considerations

• BAT's utility is set by one company. If Brave changes its rewards model, the token's role changes with it, and Roadmap 4.0 is exactly such a change.
• The notification ad unit that has been the main earning path for users is being sunset by the end of 2026, and the replacement Offer Wall model has yet to prove out.
• Buyback commitments are stated as a percentage of net revenue determined by Brave, not as a fixed on-chain rule.
• Browser market share is dominated by a small number of very large companies, several of which have added their own tracking protections.
• Advertising spending is cyclical, and privacy-preserving ad formats still command a smaller share of budgets than conventional targeting.
• Bridged versions of BAT exist on several other networks. Those are wrapped representations, not the canonical Ethereum token, and carry bridge risk.

Why Basic Attention Token Matters

The advertising bargain on the modern web is that content is free because behavior is tracked and sold. BAT is the most sustained attempt to test whether that bargain can be renegotiated: pay attention, keep your data on your device, take a share of the revenue. It has not displaced the incumbent model, but it has run long enough at real scale to produce actual evidence about what users will accept, which almost no other project in this category can claim.

Where Can You Buy Basic Attention Token (BAT)?

BAT is one of the more widely listed tokens in the market and is available on most major centralized exchanges. On-chain, it trades on Ethereum decentralized exchanges against ETH and stablecoins, and the swap feature inside Brave Wallet can be used directly from the browser. Confirm the Ethereum contract address 0x0D8775F648430679A709E98d2b0Cb6250d2887EF before swapping.

Storage Options After Purchase

As a standard ERC-20 token, BAT is supported by essentially every Ethereum wallet, including Brave's own built-in wallet, other browser extensions and mobile wallets. Hardware wallets from the major manufacturers support it natively and are the right choice for long-term holdings. If you earn BAT through Brave Rewards, you can either link a supported custodial account or take self-custody payouts, and it is worth understanding which of those you are using, since only one gives you the keys. Be careful not to send Ethereum-network BAT to an address on another chain, as bridged deployments use different contracts.

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