# PayPerScreen (npm · payperscreen-mcp)

Sanctions, crypto wallet, email and IP screening for agents. Pay per check in USDC via x402.

- Trust score: 69/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `payperscreen-mcp`: 69/100 (this document), [markdown](https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp.md), [page](https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp)

## Channel facts

- Registry: `npm`
- Package: `payperscreen-mcp`
- Version: `0.1.3`
- 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 112 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 19/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 8 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 689 tokens (~86/item across 8 items; 8 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 70/100
  - Stability observed for 21 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 9 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.

## Install

### How do I install the PayPerScreen MCP server?

PayPerScreen runs locally as an npm package, launched with npx -y payperscreen-mcp. 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 tonythetiger22-payperscreen -- npx -y payperscreen-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "tonythetiger22-payperscreen": {
      "command": "npx",
      "args": [
        "-y",
        "payperscreen-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "tonythetiger22-payperscreen": {
      "command": "npx",
      "args": [
        "-y",
        "payperscreen-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add tonythetiger22-payperscreen -- npx -y payperscreen-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tonythetiger22-payperscreen": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "payperscreen-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add tonythetiger22-payperscreen --command npx --arg -y --arg payperscreen-mcp
```

### Hermes

```yaml
mcp_servers:
  tonythetiger22-payperscreen:
    command: "npx"
    args: ["-y", "payperscreen-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "tonythetiger22-payperscreen": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "payperscreen-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add tonythetiger22-payperscreen -t stdio -c npx -a -y payperscreen-mcp
```

### Other

```json
{
  "mcpServers": {
    "tonythetiger22-payperscreen": {
      "command": "npx",
      "args": [
        "-y",
        "payperscreen-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 66, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-10-28 (score 50, −5)

- [security regression] Source repository: pass → fail
- [functional regression] Security disclosure: fail → unverified
- [functional] Package version: 0.1.2 → 0.1.3

### 2026-10-27 (score 55, −14)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 0.1.1 → 0.1.2

### 2026-10-25 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 68, −5)

- [security regression] CVE-2023-54404 affects this package: high
- [security regression] Known CVEs: pass → fail

## MCP tools (8)

### `screen_name` (~217 tokens)

Sanctions screening (name)

Screen a person or company against the OFAC SDN, UN Security Council, EU, UK, Canadian, Swiss and Australian sanctions lists and the US Consolidated Screening List (BIS Entity List, Denied Persons, State Department debarments, OFAC non-SDN lists; refreshed daily). Fuzzy match including aliases and word order. Each hit returns the listed name, score, record ID, sanctions programmes, aliases, and a comparison of the date of birth, nationality and type you pass against the listed record, which helps rule out namesakes. Pass dob and country whenever you know them. Costs $0.02.

Input parameters:

- `country` (string): Nationality or country
- `dob` (string): Date of birth, YYYY-MM-DD
- `limit` (integer): Matches per list, default 1
- `name` (string, required): Full name of the person or company
- `threshold` (number): Minimum match score, default 0.4
- `type` (string): Individual (default) or Entity

### `screen_wallet` (~96 tokens)

Crypto wallet screening

Check a crypto wallet address before sending or accepting funds: exact match against every OFAC-sanctioned address (a hit names the sanctioned party and SDN number), Tether's USDT freeze list on Tron, and wallets the FBI and victims tied to major hacks. Each source is reported separately. Costs $0.02.

Input parameters:

- `address` (string, required): Wallet address (Bitcoin, Ethereum/EVM, Tron, Solana and more)

### `check_email` (~72 tokens)

Email risk check

Assess an email address for signup or payout fraud: nine deterministic signals (mail server, disposable domain, domain age, certificate history, typo-squats, role accounts, mailbox probe). Returns low, medium or high risk with each signal explained. Costs $0.02.

Input parameters:

- `email` (string, required): Email address

### `check_ip` (~78 tokens)

IP risk check

Check a public IPv4 or IPv6 address: is it in an embargoed or heavily sanctioned country, a VPN, an anonymous proxy, a Tor exit node, a botnet control server, or on a cloud or hosting network? Returns country and network owner. Costs $0.02.

Input parameters:

- `ip` (string, required): Public IPv4 address

### `lists_coverage` (~37 tokens)

Lists and freshness (free)

Free. Which sanctions and wallet lists PayPerScreen checks, how many records each has, its publication date and when it was last refreshed.

### `sample_name_screen` (~35 tokens)

Sample name screening (free)

Free. A real, live screen_name result for a fixed example (Vladimir Putin), to see the response format before paying.

### `sample_wallet_screen` (~36 tokens)

Sample wallet screening (free)

Free. A real, live screen_wallet result for a fixed OFAC-sanctioned wallet, to see the response format before paying.

### `spending_status` (~26 tokens)

Spending this session (free)

Free. How much this session has spent, the cap, the paying wallet and network.

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 68
- 2026-11-03: 68
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 66
- 2026-10-30: 66
- 2026-10-29: 66
- 2026-10-28: 50
- 2026-10-27: 55
- 2026-10-26: 69
- 2026-10-25: 69
- 2026-10-24: 68
- 2026-10-23: 73
- 2026-10-22: 73
- 2026-10-21: 70
- 2026-10-20: 70
- 2026-10-19: 70
- 2026-10-18: 70
- 2026-10-17: 70
- 2026-10-16: 70
- 2026-10-15: 70
- 2026-10-14: 28

## Common questions

### What is the PayPerScreen MCP server?

PayPerScreen is an MCP server listed in the public MCP registry as io.github.TonytheTiger22/payperscreen. Sanctions, crypto wallet, email and IP screening for agents. Pay per check in USDC via x402. This page covers its npm package (payperscreen-mcp).

### Is the PayPerScreen MCP server safe to use?

PayPerScreen scores 69 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 PayPerScreen MCP server expose?

PayPerScreen exposes 8 tools: screen_name, screen_wallet, check_email, check_ip, lists_coverage, and 3 more. Their descriptions and schemas cost roughly 597 tokens of context every time the server is loaded.

### Is the PayPerScreen MCP server still maintained?

PayPerScreen 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 PayPerScreen MCP server under?

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

## Links

- npm package: https://www.npmjs.com/package/payperscreen-mcp
- Socket report: https://socket.dev/npm/package/payperscreen-mcp
- Website: https://payperscreen.com/
- Changelog RSS feed: https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp.json
- HTML version of this page: https://verifymcp.io/servers/tonythetiger22-payperscreen/payperscreen-mcp