# NextGen Token (npm · @ngtchain/mcp)

Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally.

- Trust score: 67/100 (medium)
- Change this week: +19
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@ngtchain/mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp.md), [page](https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp)

## Channel facts

- Registry: `npm`
- Package: `@ngtchain/mcp`
- Version: `1.1.2`
- 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**: 99/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 30 of 109 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 1 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 230 tokens (~115/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 92/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 75% 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.
  - All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.
  - An AI judge read all 2 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 NextGen Token MCP server?

NextGen Token runs locally as an npm package, launched with npx -y @ngtchain/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 har50-ngtchain -- npx -y @ngtchain/mcp
```

### Cursor

```json
{
  "mcpServers": {
    "har50-ngtchain": {
      "command": "npx",
      "args": [
        "-y",
        "@ngtchain/mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "har50-ngtchain": {
      "command": "npx",
      "args": [
        "-y",
        "@ngtchain/mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add har50-ngtchain -- npx -y @ngtchain/mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "har50-ngtchain": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@ngtchain/mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add har50-ngtchain --command npx --arg -y --arg @ngtchain/mcp
```

### Hermes

```yaml
mcp_servers:
  har50-ngtchain:
    command: "npx"
    args: ["-y", "@ngtchain/mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "har50-ngtchain": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@ngtchain/mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add har50-ngtchain -t stdio -c npx -a -y @ngtchain/mcp
```

### Other

```json
{
  "mcpServers": {
    "har50-ngtchain": {
      "command": "npx",
      "args": [
        "-y",
        "@ngtchain/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.

### 2026-11-04 (score 67, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-11-03 (score 51, −14)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 1.1.0 → 1.1.2

### 2026-10-31 (score 65, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-10-30 (score 49, +1)

- [security improvement] Malware scan: unverified → pass
- [functional regression] Schema quality: 71 → 115
- [functional regression] Tool coverage: 100% → 75%
- [functional improvement] Stability: unverified → 0.03
- [functional] Destructive annotations: pass → 100
- [functional] Package version: 1.0.0 → 1.1.0

### 2026-10-29 (score 48)

First indexed and scored.

## MCP tools (2)

### `fetch_ngt_stream` (~70 tokens)

Fetch NGT Stream [Paid: 0.001 NGT]

One NGT stream call on Base. Each call spends exactly 0.001 NGT. The agent signs an x402 v2 EIP-3009 authorization locally. The facilitator pays Base gas. Do not call in a loop. Set NGT_AGENT_PRIVATE_KEY in the MCP server environment.

### `pay_and_fetch` (~160 tokens)

Pay and Fetch [Paid: NGT, capped]

Call an API that charges per request in NGT on Base (x402). Pays the seller's price only if it is NGT on Base and at or under the cap, then returns the response with the amount paid, the seller wallet and the Base transaction. Use when the user asks for data or an action from an NGT-paywalled URL. Each call spends real NGT; do not call in a loop.

Input parameters:

- `body` (string): JSON request body for POST.
- `max_price_ngt` (string): Most to pay for this call, in NGT. Cannot exceed the server cap of 0.01 NGT.
- `method` (string)
- `url` (string, required): The paywalled https URL.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp#diagnostics

## Score history

- 2026-11-05: 67
- 2026-11-04: 67
- 2026-11-03: 51
- 2026-11-02: 65
- 2026-11-01: 65
- 2026-10-31: 65
- 2026-10-30: 49
- 2026-10-29: 48

## Common questions

### What is the NextGen Token MCP server?

NextGen Token is an MCP server listed in the public MCP registry as io.github.Har50/ngtchain. Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally. This page covers its npm package (@ngtchain/mcp).

### Is the NextGen Token MCP server safe to use?

NextGen Token scores 67 out of 100 on VerifyMCP. We found no known CVEs affecting 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 NextGen Token MCP server expose?

NextGen Token exposes 2 tools: fetch_ngt_stream, pay_and_fetch. Their descriptions and schemas cost roughly 230 tokens of context every time the server is loaded.

### Is the NextGen Token MCP server still maintained?

NextGen Token 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 NextGen Token MCP server under?

NextGen Token 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/@ngtchain/mcp
- Socket report: https://socket.dev/npm/package/@ngtchain/mcp
- Website: https://www.ngtchain.com/
- Changelog RSS feed: https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp.json
- HTML version of this page: https://verifymcp.io/servers/har50-ngtchain/ngtchain-mcp