# x402 Tools (remote · fitze-x402-seller.app.workbuddy.host)

Pay-per-call research tools for AI agents, paid via x402 USDC. Remote MCP, one free tool.

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-25

## Components

- remote · `fitze-x402-seller.app.workbuddy.host`: 66/100 (this document), [markdown](https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller.md), [page](https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller)

## Channel facts

- Endpoint: `https://fitze-x402-seller.app.workbuddy.host/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-09-25.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 75/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 573 tokens (~81/item across 7 items; 7 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 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 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 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 x402 Tools MCP server?

x402 Tools is a hosted endpoint at https://fitze-x402-seller.app.workbuddy.host/mcp, so there is nothing to install locally. 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 --transport http foxxx009-x402-tools-mcp 'https://fitze-x402-seller.app.workbuddy.host/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "foxxx009-x402-tools-mcp": {
      "url": "https://fitze-x402-seller.app.workbuddy.host/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "foxxx009-x402-tools-mcp": {
      "type": "http",
      "url": "https://fitze-x402-seller.app.workbuddy.host/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.foxxx009-x402-tools-mcp]
url = "https://fitze-x402-seller.app.workbuddy.host/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "foxxx009-x402-tools-mcp": {
      "type": "remote",
      "url": "https://fitze-x402-seller.app.workbuddy.host/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add foxxx009-x402-tools-mcp --url 'https://fitze-x402-seller.app.workbuddy.host/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  foxxx009-x402-tools-mcp:
    url: "https://fitze-x402-seller.app.workbuddy.host/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "foxxx009-x402-tools-mcp": {
      "Transport": "http",
      "Url": "https://fitze-x402-seller.app.workbuddy.host/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add foxxx009-x402-tools-mcp -t streamable-http -u 'https://fitze-x402-seller.app.workbuddy.host/mcp'
```

### Other

```json
{
  "mcpServers": {
    "foxxx009-x402-tools-mcp": {
      "type": "http",
      "url": "https://fitze-x402-seller.app.workbuddy.host/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-25 (score 66, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-23 (score 65, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-22 (score 64)

First indexed and scored.

## MCP tools (7)

### `web_fetch` (~71 tokens)

$0.01 per call — Fetch a public URL and return status, final URL, title, cleaned text (scripts/styles stripped, truncated) and the top 20 absolute links. Useful when an agent itself cannot reach the open web.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `domain_intel` (~80 tokens)

$0.02 per call — Domain due-diligence bundle: RDAP registrar + creation/expiry dates + status, DNS records (A/MX/NS/TXT), and Certificate Transparency history via crt.sh. Use to vet a domain before trusting or linking to it.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `github_repo` (~74 tokens)

$0.02 per call — GitHub repo snapshot: stars, forks, open-issue count, watchers, primary language, SPDX license, created/pushed dates and latest release tag. Use to triage a repo before contributing or depending on it.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `token_intel` (~67 tokens)

$0.02 per call — Base ERC-20 due-diligence: on-chain name, symbol, decimals and total supply via eth_call. Use to sanity-check a Base token address before interacting with it.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `repo_diligence` (~89 tokens)

$2.5 per call — Deep GitHub repo due-diligence: base snapshot + last 5 commits (author/date/message), contributor count, archived flag, security-policy presence, latest release cadence and open/closed issue ratio. Use to decide whether to depend on or contribute to a repo before trusting it.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `web_brief` (~83 tokens)

$3 per call — Multi-source research brief from 1–3 URLs. For each source extract title, meta description, key sentences (numbered/quoted/date-or-figure-bearing) and outbound links. Returns a structured, citable brief other agents can consume without their own web access.

Input parameters:

- `q` (string): JSON or key=value input for the tool

### `free_url_check` (~67 tokens)

FREE — FREE: check whether a public URL is reachable and what it is. Returns HTTP status, final URL after redirects, content type and page title. Use web_fetch (paid) for full text and links.

Input parameters:

- `q` (string): JSON or key=value input for the tool

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller#diagnostics

## Score history

- 2026-09-25: 66
- 2026-09-24: 65
- 2026-09-23: 65
- 2026-09-22: 64

## Common questions

### What is the x402 Tools MCP server?

x402 Tools is an MCP server listed in the public MCP registry as io.github.foxxx009/x402-tools-mcp. Pay-per-call research tools for AI agents, paid via x402 USDC. Remote MCP, one free tool. This page covers its hosted endpoint (https://fitze-x402-seller.app.workbuddy.host/mcp).

### Is the x402 Tools MCP server safe to use?

x402 Tools scores 66 out of 100 on VerifyMCP. 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 x402 Tools MCP server expose?

x402 Tools exposes 7 tools: web_fetch, domain_intel, github_repo, token_intel, repo_diligence, and 2 more. Their descriptions and schemas cost roughly 531 tokens of context every time the server is loaded.

### Does the x402 Tools MCP server require authentication?

No. We connected to x402 Tools without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the x402 Tools MCP server still maintained?

x402 Tools is still listed as active in the MCP registry. We last reached this channel on 25 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://fitze-x402-seller.app.workbuddy.host/mcp
- Repository: https://github.com/foxxx009/x402-tools-mcp
- Changelog RSS feed: https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller.xml
- Changelog JSON feed: https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller.json
- HTML version of this page: https://verifymcp.io/servers/foxxx009-x402-tools-mcp/fitze-x402-seller