invoice_preflight
Reconciles a UBL or PDF/image invoice against expected purchase details before an agent approves or pays it, with evidence and a match, discrepancy, or needs_review verdict.
When an agent should call it
Call invoice_preflight_quote first when the tier is uncertain; longer documents use the 10-page and 50-page OCR tiers. Pair with get_live_quote to compare an invoiced price with the item's current listing price.
Input: UBL XML or PDF/image up to 3 pages
Price: $0.065 USDC per call, paid in USDC via x402 on Base.
MCP connection: one-time setup, then call invoice_preflight on each needed workflow.
Each call requests payment for this tool only. The agent receives a structured result and decides what to do next. Check the limits above before acting on risk, market, freshness, or availability results.
MCP endpoint: https://mcp.dropenginehq.com/api/agent-services