SpendPreflight

io.github.spendpreflightv1.0.0Updated Oct 7, 2026

Operated by SpendPreflight: sanctions screening and allow/hold/block preflight for x402 payments.

VerifiedStreamable HTTPWeb executableFinanceSecurity & Monitoring

Overview

AI-generated overview

A remote MCP endpoint that screens x402 payments for sanctions and returns an allow, hold, or block preflight decision.

What it does
SpendPreflight is a hosted MCP server operated by SpendPreflight that performs sanctions screening and preflight checks for x402 payments. Based on the registry description, it evaluates a payment and returns an allow, hold, or block outcome before the payment proceeds. No individual tools are listed in the manifest, so the exact tool names and parameters are not documented here.
When to use it
Consider it when an assistant or agent workflow handles x402 payments and needs a compliance check before authorizing a transaction. It is aimed at preflight screening rather than general payment processing.
Requirements
It runs as a remote streamable HTTP endpoint at the provider's API host, so network access is required. The manifest declares no authentication, environment variables, or headers, and no local package or runtime.
Before you install
The manifest declares no authentication, so confirm with the provider how access is controlled before relying on it. Screening results may influence whether a payment is allowed, held, or blocked, and payment details are sent to a third-party service; verify its data handling and compliance terms first.

Installation

In SourceWeft

  1. Open SpendPreflight in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "spendpreflight": {
      "type": "http",
      "url": "https://api.spendpreflight.com/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.0.0LatestOct 7, 2026