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