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SpendPreflight

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

MCP server · by spendpreflight

About

SpendPreflight is an MCP server published by spendpreflight. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.

What it asks for

  • Runs remotely

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Observed by Ext Ops

Observed by Ext Ops on 2026-10-13: what the endpoint itself answered when asked to list its tools. We never call the tools.

Tools: 4 · Resources: 3 · Prompts: 2

Server: spendpreflight 1.2.0 · MCP protocol version 2025-06-18

Tool metadata as listed on 2026-10-13: annotations on 4 of 4 tools · parameter descriptions on 11 of 11.

  • check_endpointCached x402 endpoint observations, operated by SpendPreflight. Returns a transparent score (or unknown), its components and seven-day unpaid probe history for an already publicly listed URL. Never fe…
  • check_payeePayee risk check. Screens a payee wallet address and name against the OFAC SDN sanctions list and checks the merchant domain's registration age and DNS. Returns risk low|medium|high|unknown with flag…
  • get_service_infoFree, read-only service reference. Use first to learn prices, default spending rules, payment setup, trial allowance, and integration links. Takes no arguments and performs no payee screening or paym…
  • preflight_paymentSpend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days, end…

Its marketplaces publish no list of tools.

How we check endpoints

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a remote MCP server

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport http spendpreflight https://api.spendpreflight.com/mcp
Codex~/.codex/config.toml
[mcp_servers.spendpreflight]
url = "https://api.spendpreflight.com/mcp"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "spendpreflight": {
      "url": "https://api.spendpreflight.com/mcp"
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 1.0.0 No figure published Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built