Invoice Preflight MCP server

Invoice Preflight is a remote MCP server that gives an AI agent 4 tools, among them invoice_preflight, invoice_preflight_10_pages, invoice_preflight_50_pages. It answers at https://mcp.dropenginehq.com/api/invoice-mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 7 November 2026, succeeded.

Status

Answering

Tools

Reliability

4 of 4 checks

Response time

359 ms

Transport

streamable HTTP

Last checked

7 November 2026

x402 invoice preflight: checks UBL, PDF and image invoices, amounts, and expected purchase details.

Description as the publisher wrote it.

The 4 tools Invoice Preflight offers

Tool	What it does
`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 Inputs: document_xml, document_url, document_base64, mime_type, expected
`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 asse Inputs: document_url, document_base64, mime_type, expected
`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 ass Inputs: document_url, document_base64, mime_type, expected
`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 Inputs: document_type, page_count, file_size_bytes

Add Invoice Preflight to your AI client

Every block below points at https://mcp.dropenginehq.com/api/invoice-mcp. Pick your client and copy.

Claude Code: one command in your terminal

claude mcp add --transport http invoice-preflight https://mcp.dropenginehq.com/api/invoice-mcp

Claude Desktop: claude_desktop_config.json

{
  "mcpServers": {
    "invoice-preflight": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.dropenginehq.com/api/invoice-mcp"]
    }
  }
}

Cursor: ~/.cursor/mcp.json, or .cursor/mcp.json in a project

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

VS Code and GitHub Copilot: .vscode/mcp.json

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

Zed: Zed settings.json

{
  "context_servers": {
    "invoice-preflight": {
      "url": "https://mcp.dropenginehq.com/api/invoice-mcp"
    }
  }
}

Windsurf: ~/.codeium/mcp_config.json

{
  "mcpServers": {
    "invoice-preflight": {
      "serverUrl": "https://mcp.dropenginehq.com/api/invoice-mcp"
    }
  }
}

JetBrains AI Assistant: Settings, Tools, AI Assistant, MCP, New MCP Server, as JSON

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

Continue: .continue/mcpServers/neuronto.yaml

name: Invoice Preflight
version: 0.0.1
schema: v1
mcpServers:
  - name: Invoice Preflight
    type: streamable-http
    url: https://mcp.dropenginehq.com/api/invoice-mcp

Gemini CLI: ~/.gemini/settings.json

{
  "mcpServers": {
    "invoice-preflight": {
      "httpUrl": "https://mcp.dropenginehq.com/api/invoice-mcp"
    }
  }
}

Codex CLI: MCP server config

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

Warp: MCP servers, + Add, paste JSON

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

Goose: a one-click extension link

goose://extension?url=https%3A%2F%2Fmcp.dropenginehq.com%2Fapi%2Finvoice-mcp&type=streamable_http&id=invoice-preflight&name=Invoice%20Preflight

Is Invoice Preflight up right now?

It answered our last check on 7 November 2026 in 359 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Invoice Preflight

Invoice Duplicate Recovery1 tools Invoice Purchase Order Matcher1 tools Endpoint Diligence3 tools Corbelworks Utility Defect Scan and Buyer Intake5 tools MCPFax Reliability7 tools gate402 merchant checkout2 tools

Questions about Invoice Preflight

How many tools does Invoice Preflight have?

4, as returned by the server's own tools/list on 14 November 2026: invoice_preflight, invoice_preflight_10_pages, invoice_preflight_50_pages, invoice_preflight_quote.

Is Invoice Preflight down?

It answered our last check on 7 November 2026 in 359 ms. Over 4 checks since 23 September 2026 it answered 4.

How do I add Invoice Preflight to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.dropenginehq.com/api/invoice-mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Invoice Preflight need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: io.github.ahmet11159. Endpoint host: mcp.dropenginehq.com. ARD identifier: urn:air:io.github.ahmet11159:mcp:invoice-preflight. First indexed 23 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.

Is this your server? Get a message the day it stops answering or its tools change: monitoring, 14 days free. Or claim the domain to manage how it is listed.