Buyer-side pre-spend BUY / WAIT / AVOID for paid APIs, x402 endpoints, and MCP tools. Returns max spend, receipt expectations, refusal triggers, and next actions before any paid call.
Buyer-side pre-spend BUY / WAIT / AVOID for paid APIs, x402 endpoints, and MCP tools. Returns max spend, receipt expectations, refusal triggers, and next actions before any paid call.
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