# x402 Web Tools (remote · x402-web-tools.microtools-x402.workers.dev)

Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402.

- Trust score: 61/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-23

## Components

- remote · `x402-web-tools.microtools-x402.workers.dev`: 61/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools.md), [page](https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools)

## Channel facts

- Endpoint: `https://x402-web-tools.microtools-x402.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## 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 2026-10-23.

- **Endpoint Security**: 46/100
  - 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 9 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 enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - 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**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1227 tokens (~136/item across 9 items; 9 tools + 0 resources), over budget; trim descriptions and params.
  - 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 9 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 x402 Web Tools MCP server?

x402 Web Tools is a hosted endpoint at https://x402-web-tools.microtools-x402.workers.dev/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 dev-workers-microtools-x402-x402-web-tools-web-t 'https://x402-web-tools.microtools-x402.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-workers-microtools-x402-x402-web-tools-web-t": {
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-workers-microtools-x402-x402-web-tools-web-t": {
      "type": "http",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-workers-microtools-x402-x402-web-tools-web-t]
url = "https://x402-web-tools.microtools-x402.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-workers-microtools-x402-x402-web-tools-web-t": {
      "type": "remote",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-workers-microtools-x402-x402-web-tools-web-t --url 'https://x402-web-tools.microtools-x402.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-workers-microtools-x402-x402-web-tools-web-t:
    url: "https://x402-web-tools.microtools-x402.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-workers-microtools-x402-x402-web-tools-web-t": {
      "Transport": "http",
      "Url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-workers-microtools-x402-x402-web-tools-web-t -t streamable-http -u 'https://x402-web-tools.microtools-x402.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-workers-microtools-x402-x402-web-tools-web-t": {
      "type": "http",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/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.

### 2026-10-22 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 60, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-20 (score 60)

First indexed and scored.

## MCP tools (9)

### `read_url` (~128 tokens)

Fetch a public web page and return its main content as clean Markdown (readability extraction): title, url, final_url, markdown, word_count. HTML, plain text, Markdown, JSON and XML. Static fetch only (no JavaScript rendering). Respects robots.txt, blocks private/loopback/metadata hosts, max 3 MB / 15 s, no logins or paywall bypass. For PDFs use read_pdf. Failed reads are not charged. Costs $0.002 USDC per call via x402.

Input parameters:

- `url` (string, required): Public http(s) URL to read

### `read_url_safe` (~117 tokens)

Same as read_url plus a heuristic prompt-injection check: flags hidden/invisible text, instruction-like phrases ("ignore previous instructions", role reassignment, secret exfiltration, chat-template tokens), suspicious HTML comments and zero-width/Unicode-tag characters. Returns injection_check {flagged, risk none|low|medium|high, signals}. Heuristic, not a guarantee. Failed reads are not charged. Costs $0.003 USDC per call via x402.

Input parameters:

- `url` (string, required): Public http(s) URL to read

### `read_pdf` (~87 tokens)

Fetch a public PDF (max 10 MB) and convert it to Markdown with Cloudflare Workers AI toMarkdown. Returns title (if detected), url, markdown, word_count. Same URL safety rules as read_url. Failed conversions are not charged. Costs $0.006 USDC per call via x402.

Input parameters:

- `url` (string, required): Public http(s) URL of a PDF file

### `transcribe_audio` (~208 tokens)

Transcribe a public direct audio file URL (mp3, wav, m4a, ogg/opus, flac; max 25 MB and 10 minutes, checked from the file header before transcription) with Whisper (@cf/openai/whisper-large-v3-turbo) on Cloudflare Workers AI. Returns text, language, duration, segments with timestamps, optional SRT/VTT subtitles. YouTube/TikTok/Instagram and other page URLs are rejected. Failed transcriptions and files with no detected speech are not charged. Costs $0.01 USDC per file via x402.

Input parameters:

- `include_words` (boolean): Include word-level timestamps in segments (default false)
- `language` (string): Optional ISO language hint, e.g. en, ur, es (auto-detected if omitted)
- `subtitles` (string): Also return SRT and/or WebVTT subtitles (default none)
- `url` (string, required): Direct public URL of an audio file

### `search_papers` (~215 tokens)

Search scholarly papers (OpenAlex index of 250M+ works). Returns up to 25 results with title, authors, year, venue, DOI, citation count, open-access PDF link, abstract (reconstructed from OpenAlex's inverted index; may be null when the publisher withholds it) and OpenAlex id. Optional from_year / to_year / open_access_only filters. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.005 USDC per search via x402.

Input parameters:

- `from_year` (integer): Earliest publication year (inclusive)
- `limit` (integer): Number of results, 1-25 (default 10)
- `open_access_only` (boolean): Only open-access works (default false)
- `query` (string, required): Search terms (title, abstract and full-text relevance search)
- `to_year` (integer): Latest publication year (inclusive)

### `get_paper` (~169 tokens)

Look up one scholarly work by DOI (10.xxxx/..., doi.org URL), arXiv id (arXiv:1706.03762) or OpenAlex work id (W...). Returns title, authors, year, venue, DOI, citation count, references count, open-access PDF link, abstract, OpenAlex id and a retraction flag (OpenAlex is_retracted plus Crossref/Retraction Watch notices). Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Not-found and upstream errors are not charged. Costs $0.002 USDC per lookup via x402.

Input parameters:

- `id` (string, required): DOI, doi.org URL, arXiv:id or OpenAlex work id

### `check_citation` (~227 tokens)

Check whether a cited paper really exists (catch hallucinated or mistyped references) and whether it has been retracted. Give a doi, or a title with optional year and first_author. Returns exists, verdict (verified | found | doi_exists_metadata_mismatch | uncertain | not_found), confidence (high/medium/low) with a note on what matched, is_retracted (OpenAlex is_retracted + Crossref/Retraction Watch notices) and the best match. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.002 USDC per check via x402.

Input parameters:

- `doi` (string): DOI of the cited work (preferred if known)
- `first_author` (string): First author's name or surname as cited (optional)
- `title` (string): Title of the cited work (used when no DOI is given; also cross-checked against a DOI)
- `year` (integer): Publication year as cited (optional)

### `ping` (~46 tokens)

Paid connectivity test: returns ok and a server timestamp. Use it to check that your x402 payment flow works end to end. Costs $0.001 USDC per call via x402.

### `health` (~30 tokens)

Free health check. Returns service status, version, tool prices, network and the plain-HTTP x402 endpoints.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools#diagnostics

## Score history

- 2026-10-23: 61
- 2026-10-22: 61
- 2026-10-21: 60
- 2026-10-20: 60

## Common questions

### What is the x402 Web Tools MCP server?

x402 Web Tools is an MCP server listed in the public MCP registry as dev.workers.microtools-x402.x402-web-tools/web-tools. Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402. This page covers its hosted endpoint (https://x402-web-tools.microtools-x402.workers.dev/mcp).

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

x402 Web Tools scores 61 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 Web Tools MCP server expose?

x402 Web Tools exposes 9 tools: read_url, read_url_safe, read_pdf, transcribe_audio, search_papers, and 4 more. Their descriptions and schemas cost roughly 1,227 tokens of context every time the server is loaded.

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

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

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

x402 Web Tools is still listed as active in the MCP registry. We last reached this channel on 23 October 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://x402-web-tools.microtools-x402.workers.dev/mcp
- Website: https://x402-web-tools.microtools-x402.workers.dev/
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-microtools-x402-x402-web-tools-web-tools/x402-web-tools