May 2026
2026.05.12
Added documentation for Agent Nanopayments, which enables AI agents to make
sub-cent USDC payments to x402-compatible services using Circle CLI.
Documentation additions
The following Agent Nanopayments documentation was created:- Agent Nanopayments
- Quickstart: Make a Nanopayment
- Nanopayment Operations
- How to: Withdraw Your Balance
Documentation updates
The following how-tos moved from Agent Wallets into the new Agent Nanopayments section:2026.05.11
Launched Agent Stack, a new product line for AI agents to manage wallets,
transact onchain, and pay for x402-compatible services using Circle CLI.
Documentation additions
The following Agent Stack and Circle CLI documentation was created:The following Agent Wallets documentation was created:- Agent Wallets
- Quickstart: Create an Agent Wallet
- Agent Wallet Supported Blockchains
- Agent Wallet Fees
- Wallet Operations
- How to: Authenticate an Agent Wallet
- How to: Fund an Agent Wallet
- How to: Transfer USDC
- How to: Bridge USDC
- How to: Swap Tokens
- How to: Deposit for Nanopayments
- How to: Pay for a Service
- How to: Execute a Smart Contract
- How to: Sign a Message
- How to: Set Spending Policies