What is Brain
Brain is a programmable bank for AI agents that combines a consumer financial platform with an open protocol that gives autonomous agents the identity, permissions, and payment rails they need to act in the real world.
Platform and Protocol
Brain operates at two levels, each distinct but designed to work together.
🏦 Brain Platform
A vertically integrated financial platform combining a stablecoin neobank, an agent execution framework, and a developer marketplace. Users store funds, configure agents, and deploy automation all in one place.
⚙️ Brain Protocol
An open financial protocol that enables autonomous agents to operate as constrained, verifiable, and interoperable economic actors on behalf of humans, across blockchain and web infrastructure.
The platform is powered by the protocol. The protocol is open to any developer.
Key Capabilities
🔐 Programmable Accounts ERC-4337 smart accounts with policy-aware validation. Users retain full custody while agents receive scoped authority enforced on-chain.
🪪 Agent Identity and Trust ERC-8004 persistent agent identifiers with verifiable reputation accumulated from on-chain activity portable across any application that reads the registry.
📋 Policy Enforcement Structured policies govern spend limits, allowed assets, time windows, and approval thresholds. Every policy is hashed on-chain and enforced at the smart account level.
⚡ x402 Machine Payments Native pay-per-use payments over standard HTTP. Agents pay for services in real time. No API keys, no subscriptions, no manual billing.
Who is Brain For?
Developers building agent-driven applications, marketplaces, and financial systems. Brain provides a standardized way to manage identity, trust, execution, and payments across distributed environments with an open SDK and a set of composable on-chain contracts.
Users looking at infrastructure for the emerging agent economy where trust, permissions, and payment flows are protocol-native rather than application-specific.
Investors who want to put their capital to work through AI agents, without giving up custody or control.
Brain does not custody user funds or private keys. Capital always remains under user control through programmable smart accounts.
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