Give any AI agent a self-custodial x402 wallet. Search the live bazaar, inspect an endpoint's price without paying, and pay_and_call any x402 service in USDC or $THREE from your own Solana key — real @x402 settlement, bounded by spend caps. No custodial wallet, no account.
2 files for Codex, OpenCode and Claude Code: x402-payments-mcp AGENTS.md, x402-payments-mcp CLAUDE.md — 387 tokens loaded in every session.
AGENTS.md A 382 tok CLAUDE.md A 5 tok These files are nirholas/x402-payments-mcp's own configuration — they tell Codex, OpenCode and 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.