100% Open SourceMultichainMCP NativeSmart Accounts

Pay with internet money

An open-source wallet that lets your AI agents pay for things. Works in ChatGPT, Claude, and any MCP-compatible client.

Try now(Base Sepolia)

Up and running in minutes

Four steps from deploy to your first agent payment.

Deploy Brevet

One-click deploy on Vercel. Your wallet is ready in under two minutes.

Create & Fund Your Smart Account

Connect your wallet, deposit USDC. Small payments happen automatically.

Real-world scenarios where autonomous payments unlock new capabilities for your agents.

Agentic Shopping on Bitrefill

Your AI agent browses gift cards, mobile top-ups, and eSIMs on Bitrefill. It pays with crypto in one step, no human in the loop.

Crypto Alpha from Paid APIs

Let trading bots access paid market data, on-chain analytics, and alpha signals. They pay per call. You spend only when there's signal.

Your agents pay for APIs, data, and services. On your terms, from any device.

Automatic Payments

Your agent never stalls on a paywall. Small payments are signed automatically so tasks keep moving.

Spending Controls

Set per-site budgets and limits. You decide how much any agent can spend, and where.

Open SourceSmart AccountsOn-Chain VerificationEncrypted KeysAuditable

Open source and free to run. You only pay for what your agents spend.

Brevet

100% open source · Built on the x402 HTTP payment standard

EthereumBaseOptimismPolygonArbitrum

Add MCP to Your Chat Client

Point your AI agent to the Brevet MCP endpoint. Set spending policies to stay in control of every transaction.

Start Shopping

Your agent finds paid services and pays automatically. Large purchases need your approval.

Discover and Pay via MCP

Drop your Brevet MCP server into ChatGPT or any agent. It finds merchants that accept crypto, then pays on the spot.

Works in ChatGPT & Claude

Connect from any chat client, web app, or mobile device. No CLI required: just add the server URL.

Multichain

Pay with USDC on Ethereum, Base, Optimism, Polygon, and Arbitrum. More chains and tokens ahead.

Mobile & Web Access

Manage payments from your phone or browser. Unlike CLI-only wallets, brevet works wherever you chat.

Built-in Discovery

Your agent can find services that accept payments automatically. No need to hunt for compatible APIs.