A price guard and receipt auditor for agents spending through x402 and MPP facilitators. Connects to agentrateindicators.com to fetch live fair-market-value bands for API services, returning green/amber/red verdicts when an agent is quoted a price. Ships tools like is_fair_price, get_leaderboard, and verify_receipt for offline Ed25519 signature checks against a pinned publisher key. Identical Node and Python packages, same wire spec, same tool surface. Reach for this when your agent is about to pay for OpenRouter, search APIs, or any other metered service and you want a programmatic second opinion on whether the quote is in line with observed market rates.
claude mcp add --transport stdio io.github.antmanbuilds-ari-mcp-py uvx ari-mcp-py