# Crypto Link Check (npm · devx-link-check)

Check crypto links for phishing lookalikes of wallets, exchanges and dapps before wallet connect

- Trust score: 63/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `crypto-link-check.nextill-pos.workers.dev`: 67/100, [markdown](https://verifymcp.io/servers/devx-agent-crypto-link-check/crypto-link-check.md), [page](https://verifymcp.io/servers/devx-agent-crypto-link-check/crypto-link-check)
- npm · `devx-link-check`: 63/100 (this document), [markdown](https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check.md), [page](https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check)

## Channel facts

- Registry: `npm`
- Package: `devx-link-check`
- Version: `1.1.0`
- 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**: 81/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - 30 of 93 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 4 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 67/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 628 tokens (~314/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - 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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 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 Crypto Link Check MCP server?

Crypto Link Check runs locally as an npm package, launched with npx -y devx-link-check. 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 devx-agent-crypto-link-check -- npx -y devx-link-check
```

### Cursor

```json
{
  "mcpServers": {
    "devx-agent-crypto-link-check": {
      "command": "npx",
      "args": [
        "-y",
        "devx-link-check"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "devx-agent-crypto-link-check": {
      "command": "npx",
      "args": [
        "-y",
        "devx-link-check"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add devx-agent-crypto-link-check -- npx -y devx-link-check
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "devx-agent-crypto-link-check": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "devx-link-check"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add devx-agent-crypto-link-check --command npx --arg -y --arg devx-link-check
```

### Hermes

```yaml
mcp_servers:
  devx-agent-crypto-link-check:
    command: "npx"
    args: ["-y", "devx-link-check"]
```

### Netclaw

```json
{
  "McpServers": {
    "devx-agent-crypto-link-check": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "devx-link-check"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add devx-agent-crypto-link-check -t stdio -c npx -a -y devx-link-check
```

### Other

```json
{
  "mcpServers": {
    "devx-agent-crypto-link-check": {
      "command": "npx",
      "args": [
        "-y",
        "devx-link-check"
      ]
    }
  }
}
```

## 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 63, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-11-03 (score 63, 0)

- [functional regression] Security disclosure: fail → unverified

### 2026-10-31 (score 63, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-30 (score 48)

First indexed and scored.

## MCP tools (2)

### `check_crypto_link` (~363 tokens)

Check a crypto link for phishing

Checks one URL or domain for signs of crypto phishing and tells you whether it belongs to a known wallet, exchange or dapp. Use it before an agent or user opens a link to connect a wallet, sign a message or approve a token, for example a link from an email, DM, ad, search result or support chat. It runs locally and offline. It makes no network request, does not visit the page, and does not ask for keys. It compares the hostname with a hand-curated list of official domains for about 60 brands and flags lookalike characters (0/o, rn/m, Cyrillic), typosquats, punycode, free hosting and bait words such as 'claim', 'airdrop' or 'sync'. Returns: verdict (official = on the official list; no_red_flags = nothing found, which is not proof of safety; caution = one warning, such as the brand name on a different TLD; suspicious = two or more warnings; dangerous = impersonation or lookalike), the parsed host and its Unicode form, the official brand it matches or the brand it seems to imitate, and a list of findings. Each finding has a level, code and message. It does not check domain age, DNS, redirects or page content. For those, see full_report_info (a paid hosted check). Unknown brands are not covered.

Input parameters:

- `url` (string, required): The link to check: a full URL (https://phantom.app/download) or a bare domain (phantom.app). http(s) only; a missing scheme is treated as https. Public domain names only (no IP addresses or localhost…

Output parameters:

- `findings` (array)
- `full_report` (string): URL of the paid hosted check for this link
- `full_report_price_usdc` (number)
- `host` (string): hostname as ASCII/punycode
- `host_unicode` (string): hostname as it displays to users
- `impersonation_suspect` (string|null): brand this domain seems to imitate, else null
- `input` (string)
- `official_brand` (string|null): brand whose official list contains this domain, else null
- `registrable_domain` (string|null)
- `url` (string): normalized URL
- `verdict` (string)

### `full_report_info` (~177 tokens)

How to buy the full hosted link check

Returns the endpoint, price and payment method of the optional paid hosted check. It does not call the API and does not pay or sign anything. The paid check covers what check_crypto_link cannot see offline: domain registration age (RDAP), DNS resolution, the redirect chain, and one fetch of the page scanned for seed-phrase prompts and token-approval drainer code. It accepts 1-10 URLs per call for 0.005 USDC on Base via x402. Use it when check_crypto_link returns no_red_flags or caution for a link that someone is about to trust with a wallet and you want more evidence. If check_crypto_link already says dangerous or official, you usually do not need it. Returns: method, url_template, price_usdc, network, asset, protocol, max_urls, settles and docs.

Output parameters:

- `asset` (string)
- `docs` (string)
- `max_urls` (number)
- `method` (string)
- `network` (string)
- `price_usdc` (number)
- `protocol` (string)
- `settles` (string)
- `url_template` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check#diagnostics

## Score history

- 2026-11-04: 63
- 2026-11-03: 63
- 2026-11-02: 63
- 2026-11-01: 63
- 2026-10-31: 63
- 2026-10-30: 48

## Common questions

### What is the Crypto Link Check MCP server?

Crypto Link Check is an MCP server listed in the public MCP registry as io.github.devx-agent/crypto-link-check. Check crypto links for phishing lookalikes of wallets, exchanges and dapps before wallet connect. This page covers its npm package (devx-link-check).

### Is the Crypto Link Check MCP server safe to use?

Crypto Link Check scores 63 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 4 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 Crypto Link Check MCP server expose?

Crypto Link Check exposes 2 tools: check_crypto_link, full_report_info. Their descriptions and schemas cost roughly 540 tokens of context every time the server is loaded.

### Is the Crypto Link Check MCP server still maintained?

Crypto Link Check 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 Crypto Link Check MCP server under?

Crypto Link Check 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/devx-link-check
- Socket report: https://socket.dev/npm/package/devx-link-check
- Repository: https://github.com/devx-agent/crypto-link-check
- Website: https://crypto-link-check.nextill-pos.workers.dev/
- Changelog RSS feed: https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check.xml
- Changelog JSON feed: https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check.json
- HTML version of this page: https://verifymcp.io/servers/devx-agent-crypto-link-check/devx-link-check