PayStage

io.github.base-buzz/mcp

Umbrella MCP: payment preflight, auth watch, HIP-3 trade preflight, velocity checks

View repository →Homepage →

Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@paystage/mcp@0.3.5"
      ]
    }
  }
}

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Finance
Version
0.3.5
Registry
active
Published
11/12/2026

On GitHub

read Nov 13, 2026
Stars
5
Forks
7
Last push
Nov 13, 2026
License
MIT

TypeScript

From the README

PayStage Your agent's wallet should not sign because a server asked it to. PayStage sits between an agent and the x402 payment it is about to make, and answers one question before the signature exists: should this payment happen? Every tool returns pay, review, or donotpay, with the rule that fired and a receipt you can keep. The gap it fills is narrow and load-bearing. x402 makes paying trivial and leaves deciding to the caller: a wallet enforces signatures, not intent. @paystage/x402-guard evaluates the challenge before the wallet signs, so a wrong payee, an over-cap amount or an unknown asset never reaches the signing step at all. Try it without installing anything: The hosted endpoint serves a real verdict with no payment and no account for the first 1,000 calls per IP per day — an agent cannot fill in a signup form, so requiring one would exclude exactly the callers this is built for. Quick start The server waits silently for an agent app to connect. That's normal; press Ctrl+C to exit. To try the tools without an app, run npx @modelcontextprotocol/inspector npx -y -p @paystage/mcp paystage-mcp. @paystage/mcp is the umbrella MCP server (5 tools, including evaluatehip3trade and evaluate_velocity). It exposes the PayStage tools over stdio and reads a local policy file.…

Read the full README on GitHub →

Remotes

  • streamable-httphttps://api.paystage.xyz/mcp

More Finance servers

Browse all Finance →

MIDAS Protocol

BbrainFrance

Complete financial infrastructure for AI agents — payments, lending, escrow & more.

FinanceAdded Apr 2026

AESO MCP

bchoi-qwe

Typed Alberta electricity market data and analytics via official AESO APIs.

FinanceAdded Aug 2026

Polymarket MCP

beejmaxx

Polymarket market data, live CLOB books, replay, simulation, and opt-in trading in Rust.

FinanceAdded Aug 2026

Financial Evidence

beepboop2025

Read-only public financial evidence from LiquiLens, Undertow, Seiche and Palimpsest.

FinanceAdded 1 week ago

Financial Evidence Workspace

beepboop2025

Read-only cited financial datasets, bounded research queries and source diagnostics.

FinanceAdded 4 weeks ago

Seiche, LiquiLens and Undertow source data

beepboop2025

Funding histories, bank filings and settlement data with source receipts, units and capture clocks.

FinanceAdded Sep 2026

Add the badge to your site

Show visitors that PayStage is listed here — it’s also the link we check for a free listing.

PayStage — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-base-buzz-mcp?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="PayStage — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![PayStage — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-base-buzz-mcp?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.