PayStage

xyz.paystagePublished by paystage.xyzv0.2.2Updated Nov 3, 2026

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

VerifiedSTDIODesktop onlyFinanceSecurity & Monitoring

Overview

PayStage's local MCP server, published by paystage.xyz; no sign-in required; STDIO; 5 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
paystage.xyz

Installation

In SourceWeft

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

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

@paystage/mcp

PayStage umbrella MCP server: payment preflight, auth watch, and HIP-3 trade preflight.

Not financial advice. The trade preflight tool is a local policy gate only — it does not place orders or recommend trades.

Published on npm as @paystage/[email protected].

Install

sh
npx -y @paystage/mcp

Or:

sh
npm install @paystage/mcp

The package exposes a stdio MCP server (bin: paystage-mcp).

MCP configuration

json
{  "mcpServers": {    "paystage": {      "command": "npx",      "args": ["-y", "@paystage/mcp"],      "env": {        "PAYSTAGE_POLICY_PATH": "./policy.json"      }    }  }}

Environment variables (all optional):

  • PAYSTAGE_POLICY_PATH — path to policy.json spending rules
  • PAYSTAGE_RPC_URL — Base RPC URL override

Tools

evaluate_mcp_payment — Available now

Evaluates a proposed x402 payment against a local policy file and returns a verdict before the agent signs anything.

list_outstanding_auths — Available now

Lists outstanding ERC-20, Permit2, and EIP-3009 authorizations.

evaluate_outstanding_auths — Available now

Flags outstanding authorizations that need attention (e.g. authorized but never settled).

evaluate_hip3_trade — Available now

Evaluates a proposed HIP-3 / trade.xyz order against a local TradePolicy and returns a decision: allow | review | do_not_trade.

Backed by @paystage/trade-preflight (0.1.0), which is also published on npm and can be run standalone:

sh
npx -y @paystage/trade-preflight

The policy is passed as a tool argument; no extra environment variables are required for this tool.

Packages

PackageVersionPurpose
@paystage/mcp0.2.0Umbrella server (4 tools)
@paystage/auth-watch0.1.0Outstanding-auth tools
@paystage/trade-preflight0.1.2HIP-3 / trade.xyz trade preflight

Links

License

MIT

Source: packages/mcp/README.md at commit 51d940d

Tools

5

evaluate_mcp_payment

Evaluate an x402 PaymentRequired payload against a PayStage spending policy before paying

Parameterspolicypolicy_pathpayment_required

list_outstanding_auths

List outstanding token authorizations for a wallet

Parameterspolicytokenswalletrequirednetworkrpc_urlspenderspolicy_patheip3009_nonces

evaluate_outstanding_auths

List and evaluate outstanding token authorizations against a policy

Parameterspolicytokenswalletrequirednetworkrpc_urlspenderspolicy_patheip3009_nonces

evaluate_hip3_trade

Evaluate a Hyperliquid HIP-3 (trade.xyz) order against a TradePolicy before an agent trades. Returns decision allow | review | do_not_trade.

Parameterspolicyproposalrequiredsnapshotpolicy_path

evaluate_velocity

Rolling-window rate and spend-pattern check for a proposed payment against recent action history and a policy.velocity config

Parametersnow_mspolicyhistoryproposedrequiredpolicy_path

Version history

3
  1. v0.2.2LatestNov 3, 2026
  2. v0.2.1Oct 31, 2026
  3. v0.2.0Oct 30, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts
  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts