# PayStage Trade Preflight (npm · @paystage/trade-preflight)

MCP tool: evaluate HIP-3/trade.xyz orders against a local TradePolicy before trading

- Trust score: 58/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@paystage/trade-preflight`: 58/100 (this document), [markdown](https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight.md), [page](https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight)

## Channel facts

- Registry: `npm`
- Package: `@paystage/trade-preflight`
- Version: `0.1.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 81/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - 30 of 93 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 53/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 62 tokens (~62/item across 1 items; 1 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the PayStage Trade Preflight MCP server?

PayStage Trade Preflight runs locally as an npm package, launched with npx -y @paystage/trade-preflight. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add xyz-paystage-trade-preflight -- npx -y @paystage/trade-preflight
```

### Cursor

```json
{
  "mcpServers": {
    "xyz-paystage-trade-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "@paystage/trade-preflight"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "xyz-paystage-trade-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "@paystage/trade-preflight"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add xyz-paystage-trade-preflight -- npx -y @paystage/trade-preflight
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "xyz-paystage-trade-preflight": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@paystage/trade-preflight"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add xyz-paystage-trade-preflight --command npx --arg -y --arg @paystage/trade-preflight
```

### Hermes

```yaml
mcp_servers:
  xyz-paystage-trade-preflight:
    command: "npx"
    args: ["-y", "@paystage/trade-preflight"]
```

### Netclaw

```json
{
  "McpServers": {
    "xyz-paystage-trade-preflight": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@paystage/trade-preflight"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add xyz-paystage-trade-preflight -t stdio -c npx -a -y @paystage/trade-preflight
```

### Other

```json
{
  "mcpServers": {
    "xyz-paystage-trade-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "@paystage/trade-preflight"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-31 (score 58, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-30 (score 58)

First indexed and scored.

## MCP tools (1)

### `evaluate_hip3_trade` (~62 tokens)

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

Input parameters:

- `policy`
- `proposal` (object, required)
- `snapshot` (object)

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight#diagnostics

## Score history

- 2026-11-05: 58
- 2026-11-04: 58
- 2026-11-03: 58
- 2026-11-02: 58
- 2026-11-01: 58
- 2026-10-31: 58
- 2026-10-30: 58

## Common questions

### What is the PayStage Trade Preflight MCP server?

PayStage Trade Preflight is an MCP server listed in the public MCP registry as xyz.paystage/trade-preflight. MCP tool: evaluate HIP-3/trade.xyz orders against a local TradePolicy before trading. This page covers its npm package (@paystage/trade-preflight).

### Is the PayStage Trade Preflight MCP server safe to use?

PayStage Trade Preflight scores 58 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the PayStage Trade Preflight MCP server expose?

PayStage Trade Preflight exposes 1 tool: evaluate_hip3_trade. Their descriptions and schemas cost roughly 62 tokens of context every time the server is loaded.

### Is the PayStage Trade Preflight MCP server still maintained?

PayStage Trade Preflight is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the PayStage Trade Preflight MCP server under?

PayStage Trade Preflight declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the PayStage Trade Preflight MCP server?

VerifyMCP ran 15 checks on PayStage Trade Preflight, covering Malware scan, Known CVEs, Install scripts, Dependency health and 11 more. One item could not be completed, a gap on our side rather than a finding about PayStage Trade Preflight: Stability. One category scores 0 for that reason, because we only credit what we can confirm. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/@paystage/trade-preflight
- Socket report: https://socket.dev/npm/package/@paystage/trade-preflight
- Repository: https://github.com/base-buzz/paystage
- Website: https://paystage.xyz/
- Changelog RSS feed: https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight.xml
- Changelog JSON feed: https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight.json
- HTML version of this page: https://verifymcp.io/servers/xyz-paystage-trade-preflight/paystage-trade-preflight