# Contract Security Scanner (npm · @fino314-oss/contract-scanner-mcp)

Scans Base L2 smart contracts for security risks. Risk score 0-100, detects backdoors & proxies.

- Trust score: 68/100 (medium)
- Change this week: +22
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@fino314-oss/contract-scanner-mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp.md), [page](https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp)

## Channel facts

- Registry: `npm`
- Package: `@fino314-oss/contract-scanner-mcp`
- Version: `1.0.0`
- 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 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (104 of 108), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (104 of 108), so this covers what we could see, not the whole tree.
- **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 138 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 351 tokens (~117/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add fino-oss-contract-scanner -- npx -y @fino314-oss/contract-scanner-mcp
```

### Codex

```bash
codex mcp add fino-oss-contract-scanner -- npx -y @fino314-oss/contract-scanner-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "fino-oss-contract-scanner": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@fino314-oss/contract-scanner-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add fino-oss-contract-scanner --command npx --arg -y --arg @fino314-oss/contract-scanner-mcp
```

### Hermes

```yaml
mcp_servers:
  fino-oss-contract-scanner:
    command: "npx"
    args: ["-y", "@fino314-oss/contract-scanner-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "fino-oss-contract-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "@fino314-oss/contract-scanner-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.

### 2026-08-02 (score 68, +32)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Schema quality: unverified → good
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 36, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-07-31 (score 21, −25)

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

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (3)

### `scan_contract` (~157 tokens)

Scans an EVM smart contract on Base L2 for security risks.

Analyzes:
\- Source code verification status
\- Risky function selectors (mint, blacklist, pause, backdoors, etc.)
\- Proxy / upgradeability patterns
\- Contract age (new contracts = higher risk)
\- Transaction activity

Returns a risk score (0-100) and categorized findings (critical/high/medium/good).

Use this before:
\- Interacting with an unknown contract
\- Approving a token spend
\- Investing in a DeFi protocol
\- Auditing a smart contract

Input parameters:

- `address` (string, required): Contract address on Base L2 to scan
- `include_raw` (boolean): Include raw findings array in response (default: false)

### `batch_scan` (~79 tokens)

Scans multiple contracts at once and returns a risk comparison table.
  
Useful for:
\- Comparing multiple DeFi protocols before choosing one
\- Auditing all contracts in a project
\- Quick portfolio risk assessment

Scans up to 5 contracts in parallel.

Input parameters:

- `addresses` (array, required): List of 2-5 contract addresses on Base L2

### `interpret_risk` (~115 tokens)

Given a risk score and findings from a scan, provides an actionable recommendation.

Returns: SAFE_TO_USE / PROCEED_WITH_CAUTION / HIGH_RISK / DO_NOT_USE

Input parameters:

- `context` (string): Type of contract being evaluated
- `has_backdoor` (boolean): Whether rescueTokens/withdrawAll detected
- `has_unverified_source` (boolean, required): Whether source code is unverified
- `risk_label` (string, required): Risk label from scan_contract
- `risk_score` (number, required): Risk score from scan_contract

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 68
- 2026-08-01: 36
- 2026-07-31: 21
- 2026-07-30: 46
- 2026-07-28: 46
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/@fino314-oss/contract-scanner-mcp
- Socket report: https://socket.dev/npm/package/@fino314-oss/contract-scanner-mcp
- Repository: https://github.com/fino-oss/contract-scanner-mcp
- Changelog RSS feed: https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/fino-oss-contract-scanner/fino314-oss-contract-scanner-mcp