# io.github.ukenal/x402ai-mcp (npm · x402ai-mcp)

Pay-per-call AI tools (embed, summarize, ask) from x402ai, paid in USDC on Base via x402.

- Trust score: 67/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `x402ai-mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp.md), [page](https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp)

## Channel facts

- Registry: `npm`
- Package: `x402ai-mcp`
- Version: `0.1.1`
- 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**: 91/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects zod 3.25.76, reached via @x402/core > zod. A fixed version is available.
  - No install/post-install scripts declared.
  - 0 of 25 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 5 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 417 tokens (~83/item across 5 items; 5 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**: 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 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 io.github.ukenal/x402ai-mcp server?

io.github.ukenal/x402ai-mcp runs locally as an npm package, launched with npx -y x402ai-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 ukenal-x402ai-mcp -- npx -y x402ai-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "ukenal-x402ai-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402ai-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ukenal-x402ai-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402ai-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add ukenal-x402ai-mcp -- npx -y x402ai-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ukenal-x402ai-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "x402ai-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ukenal-x402ai-mcp --command npx --arg -y --arg x402ai-mcp
```

### Hermes

```yaml
mcp_servers:
  ukenal-x402ai-mcp:
    command: "npx"
    args: ["-y", "x402ai-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "ukenal-x402ai-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "x402ai-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add ukenal-x402ai-mcp -t stdio -c npx -a -y x402ai-mcp
```

### Other

```json
{
  "mcpServers": {
    "ukenal-x402ai-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402ai-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.

### 2026-10-27 (score 67, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-26 (score 52)

First indexed and scored.

## MCP tools (5)

### `embed` (~93 tokens)

x402ai embed

Compute a text embedding vector. Costs $0.01 (USDC on Base) per call. Spends real money; subject to a per-payment and per-session cap. Pass the text in `input` (max 3000 chars).

Input parameters:

- `input` (string, required): The text to process, passed as "input": the text to embed or summarize, or for ask, the question. 1-3000 characters.

### `summarize` (~99 tokens)

x402ai summarize

Summarize text. Costs $0.02 (USDC on Base) per call; takes 5-16 s. Spends real money; subject to a per-payment and per-session cap. Pass the text in `input` (max 3000 chars).

Input parameters:

- `input` (string, required): The text to process, passed as "input": the text to embed or summarize, or for ask, the question. 1-3000 characters.

### `ask` (~102 tokens)

x402ai ask

Ask a question and get an answer. Costs $0.04 (USDC on Base) per call; takes 5-16 s. Spends real money; subject to a per-payment and per-session cap. Pass the question in `input` (max 3000 chars).

Input parameters:

- `input` (string, required): The text to process, passed as "input": the text to embed or summarize, or for ask, the question. 1-3000 characters.

### `health` (~29 tokens)

x402ai health

Free. Check GET /health on api.x402ai.dev and show local session spend. No key needed.

### `inspect` (~94 tokens)

x402 inspect

Free, never signs or pays. Fetch an https URL unpaid, decode its x402 payment-required header, and check it with Coinbase CDP validate and merchant discovery. Sends the URL to api.cdp.coinbase.com.

Input parameters:

- `method` (string): HTTP method for the unpaid probe request. Defaults to POST.
- `url` (string, required): The https URL of the x402-protected endpoint to inspect (max 2048 chars).

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp#diagnostics

## Score history

- 2026-11-05: 67
- 2026-11-04: 67
- 2026-11-03: 67
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 67
- 2026-10-30: 67
- 2026-10-29: 67
- 2026-10-28: 67
- 2026-10-27: 67
- 2026-10-26: 52

## Common questions

### What is the io.github.ukenal/x402ai-mcp server?

io.github.ukenal/x402ai-mcp is listed in the public MCP registry as io.github.ukenal/x402ai-mcp. Pay-per-call AI tools (embed, summarize, ask) from x402ai, paid in USDC on Base via x402. This page covers its npm package (x402ai-mcp).

### Is the io.github.ukenal/x402ai-mcp server safe to use?

io.github.ukenal/x402ai-mcp scores 67 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 io.github.ukenal/x402ai-mcp server expose?

io.github.ukenal/x402ai-mcp exposes 5 tools: embed, summarize, ask, health, inspect. Their descriptions and schemas cost roughly 417 tokens of context every time the server is loaded.

### Is the io.github.ukenal/x402ai-mcp server still maintained?

io.github.ukenal/x402ai-mcp 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 io.github.ukenal/x402ai-mcp server under?

io.github.ukenal/x402ai-mcp 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/x402ai-mcp
- Socket report: https://socket.dev/npm/package/x402ai-mcp
- Repository: https://github.com/ukenal/x402ai-mcp
- Changelog RSS feed: https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp.json
- HTML version of this page: https://verifymcp.io/servers/ukenal-x402ai-mcp/x402ai-mcp