CLI for Agentic payments (x402, MPP, AP2).
pay is a command-line payment layer for APIs that use the x402 or Machine Payments Protocol standards, handling stablecoin authorization and payment proofs through a local wallet before retrying a request. It is designed for command-line tools and AI assistants, and also provides an MCP server plus integrations for supported agent clients.
Latest release pay-v0.29.0 · 26 Sept 2026
1 file for Claude Code: pay CLAUDE.md — 7 tokens loaded in every session.
CLAUDE.md A 7 tok These files are solana-foundation/pay's own configuration — they tell Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.