# tab (npm · paidwithtab)

Agents pay per call over HTTP 402 and x402: 8,600+ API routes, signed budgets and receipts.

- Trust score: 0/100 (low)
- Change this week: −40
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

> **Critical malware flagged**: A supply-chain scanner flagged critical malware in this package. Treat it as unsafe to install until the finding is cleared.

> **Recent critical change**: Malware scan (2026-11-04). See the changelog below before you install this server.

## Components

- npm · `paidwithtab`: 0/100 (this document), [markdown](https://verifymcp.io/servers/paidwithtab-tab/paidwithtab.md), [page](https://verifymcp.io/servers/paidwithtab-tab/paidwithtab)

## Channel facts

- Registry: `npm`
- Package: `paidwithtab`
- Version: `3.0.0`
- 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 2026-11-04.

- **Supply Chain Security**: 33/100
  - Malware check failed: a supply-chain vendor flagged critical malware; the score is capped at 0.
  - CVE check failed: a known advisory affects this package; its severity couldn't be graded.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 48/100
  - 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 1 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this package could not be installed in a clean environment, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this package could not be installed in a clean environment, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this package could not be installed in a clean environment, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: this package could not be installed in a clean environment, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this package could not be installed in a clean environment, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you.

## Install

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

tab runs locally as an npm package, launched with npx -y paidwithtab. 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 paidwithtab-tab -- npx -y paidwithtab
```

### Cursor

```json
{
  "mcpServers": {
    "paidwithtab-tab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "paidwithtab-tab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add paidwithtab-tab -- npx -y paidwithtab
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add paidwithtab-tab --command npx --arg -y --arg paidwithtab
```

### Hermes

```yaml
mcp_servers:
  paidwithtab-tab:
    command: "npx"
    args: ["-y", "paidwithtab"]
```

### Netclaw

```json
{
  "McpServers": {
    "paidwithtab-tab": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add paidwithtab-tab -t stdio -c npx -a -y paidwithtab
```

### Other

```json
{
  "mcpServers": {
    "paidwithtab-tab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}
```

## 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.

### 2026-11-04 (score 0, −35)

- [critical regression] Malware scan: pass → fail
- [critical regression] Malware indicator (confirmed malware)
- [critical regression] Score status: scored → failed

### 2026-11-03 (score 35, −5)

- [security regression] MAL-2026-18521 affects this package: none
- [security regression] Known CVEs: pass → fail
- [functional] Package version: 2.3.1 → 3.0.0

### 2026-10-24 (score 40, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-23 (score 25)

First indexed and scored.

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.

## Diagnostics

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

## Score history

- 2026-11-04: 0
- 2026-11-03: 35
- 2026-11-02: 40
- 2026-11-01: 40
- 2026-10-31: 40
- 2026-10-30: 40
- 2026-10-29: 40
- 2026-10-28: 40
- 2026-10-27: 40
- 2026-10-26: 40
- 2026-10-25: 40
- 2026-10-24: 40
- 2026-10-23: 25

## Common questions

### What is the tab MCP server?

tab is an MCP server listed in the public MCP registry as io.github.paidwithtab/tab. Agents pay per call over HTTP 402 and x402: 8,600+ API routes, signed budgets and receipts. This page covers its npm package (paidwithtab).

### Is the tab MCP server still maintained?

tab is still listed as active in the MCP registry. We last reached this channel on 4 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 tab MCP server under?

tab 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/paidwithtab
- Socket report: https://socket.dev/npm/package/paidwithtab
- Repository: https://github.com/paidwithtab/tab
- Website: https://paidwithtab.com/
- Changelog RSS feed: https://verifymcp.io/servers/paidwithtab-tab/paidwithtab.xml
- Changelog JSON feed: https://verifymcp.io/servers/paidwithtab-tab/paidwithtab.json
- HTML version of this page: https://verifymcp.io/servers/paidwithtab-tab/paidwithtab