# io.github.eltociear/contract-guard-mcp (oci · ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0)

EVM contract/token risk check + ERC20 approval (proxy, EIP-7702, unlimited-allowance). Zero deps.

- Trust score: 40/100 (low)
- Change this week: −6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- oci · `ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0`: 40/100 (this document), [markdown](https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0.md), [page](https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0)

## Channel facts

- Registry: `oci`
- Package: `ghcr.io/eltociear/contract-guard-mcp:mcp-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 2026-08-03.

- **Supply Chain Security**: 0/100
  - Malware scan not yet available for this package.
  - CVE data not yet available for this package.
  - Install-script risk not yet assessed.
  - Dependency-health data not yet available.
- **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 56 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 80/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 235 tokens (~117/item across 2 items; 2 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**: 20/100
  - Spec-recency check failed: implements MCP spec 2024-11-05; 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

### Claude

```bash
claude mcp add eltociear-contract-guard-mcp -- docker run --rm -i ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
```

### Codex

```bash
codex mcp add eltociear-contract-guard-mcp -- docker run --rm -i ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "eltociear-contract-guard-mcp": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "--rm",
        "-i",
        "ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
      ],
      "enabled": true
    }
  }
}
```

### Hermes

```yaml
mcp_servers:
  eltociear-contract-guard-mcp:
    command: "docker"
    args: ["run", "--rm", "-i", "ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"]
```

### Other

```json
{
  "mcpServers": {
    "eltociear-contract-guard-mcp": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 40, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-07-31 (score 36, −10)

- [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, +35)

- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: excellent
- [functional] First check of Tool coverage: 100
- [functional] First check of Schema quality: pass
- [functional] First check of Schema quality: fail

### 2026-07-26 (score 11)

First indexed and scored.

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

## MCP tools (2)

### `check_contract` (~126 tokens)

Pre-interaction risk check for an EVM contract/token address. Returns: is-contract vs EOA, EIP-7702 delegated-EOA detection, upgradeable-proxy detection (EIP-1967 + legacy), ERC20 metadata (name/symbol/decimals/totalSupply), and a risk score with actionable flags. Call this before approving, swapping, or trusting a token. Pure public RPC, no signing.

Input parameters:

- `address` (string, required): EVM contract/token address (0x + 40 hex)
- `chain` (string): Chain (default: base)

### `check_approval` (~109 tokens)

Check how much of an owner's ERC20 token a spender is approved to move (allowance). Flags UNLIMITED approvals — the #1 wallet-drain vector. Call this to audit existing approvals or before signing an approve(). Pure public RPC, no signing.

Input parameters:

- `chain` (string): Chain (default: base)
- `owner` (string, required): Wallet that granted the approval
- `spender` (string, required): Contract/address approved to spend
- `token` (string, required): ERC20 token contract address

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0#diagnostics

## Score history

- 2026-08-03: 40
- 2026-08-02: 36
- 2026-08-01: 36
- 2026-07-31: 36
- 2026-07-30: 46
- 2026-07-29: 46
- 2026-07-28: 46
- 2026-07-27: 46
- 2026-07-26: 11

## Links

- Repository: https://github.com/eltociear/contract-guard-mcp
- Changelog RSS feed: https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0/changelog.json
- HTML version of this page: https://verifymcp.io/servers/eltociear-contract-guard-mcp/ghcr-io-eltociear-contract-guard-mcp-mcp-1-1-0