Your AI agent can now sign checks, but only if you say so

What it does

AgentPay SDK is a local runtime for self-custodial, policy-aware blockchain wallets. It runs a Rust daemon on your machine—managed by launchd or systemd—that lets AI agents request payments, hold funds, and move money across chains, but only after checking spending policies and human approvals. A Node-based agentpay CLI handles wallet setup, policy editing, transfers, and broadcast operations without sending keys to a remote service.

The interesting bit

Instead of treating agentic finance as a cloud API, this is essentially an operating-system-level authorization layer. It ships skill packs and adapters for popular AI coding agents like Codex, Claude, Cline, and Goose, so the assistant that writes your code can also request a payment, but the local daemon acts as the stubborn accountant who refuses to sign until policy is met.

Key highlights

• Self-custodial by design: private keys live in local vaults protected by macOS Keychain or Linux Secret Service.
• Granular policy enforcement with per-token spending limits, destination overrides, and manual approval gates.
• Native OS daemon lifecycle using launchd on macOS and systemd on Linux.
• Bundled AI agent adapters for Codex, Claude, Cline, Goose, Windsurf, OpenClaw, and Cursor workspace rules.
• Supports cross-chain stablecoin transfers, x402 payments, and multi-party payment flows.

Caveats

• The managed Rust daemon and wallet setup are macOS and Linux only; Windows is limited to the JavaScript workspace.
• Shared configuration edits and live daemon policy state can drift apart, requiring explicit reapplication to sync them.

Verdict

A solid fit for developers building autonomous agents that need to handle real money without cloud custody. Look elsewhere if you want a managed SaaS API or primarily develop on Windows.