Invoice Preflight

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "invoice-preflight": {
      "type": "http",
      "url": "https://mcp.dropenginehq.com/api/invoice-mcp"
    }
  }
}

4 tools

• invoice_preflight_quote

  FREE, no wallet or document upload: choose the lowest priced Invoice Preflight tool from document type, PDF page count, and optional byte size. Call this before a paid invoice tool when the tier is uncertain. It does not inspect or validate the document. Agent entry points…

• invoice_preflight

  Paid invoice check ($0.065 USDC on Base): UBL XML or complete PDF/image invoices up to 3 pages. Compares expected purchase fields and line items; returns evidence, amount checks and match/discrepancy/needs_review. No payment or bookkeeping action is taken. Agent entry points…

• invoice_preflight_10_pages

  Paid invoice OCR ($0.13 USDC on Base): process complete PDF/image invoices up to 10 pages. Oversized PDFs are rejected before OCR. Agent entry points: risky external action → use Agent Action Gate when a combined action-specific safety assessment is needed; unclear…

• invoice_preflight_50_pages

  Paid invoice OCR ($0.475 USDC on Base): process complete PDF/image invoices up to 50 pages. Oversized PDFs are rejected before OCR. Agent entry points: risky external action → use Agent Action Gate when a combined action-specific safety assessment is needed; unclear…

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