io.github.eltociear/contract-guard-mcp
OCI · GHCR.IO/ELTOCIEAR/CONTRACT-GUARD-MCP:MCP-1.1.0 · SCANNED SEP 20
EVM contract/token risk check + ERC20 approval (proxy, EIP-7702, unlimited-allowance). Zero deps.
Available components
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. How we score → Why this is hard to score →
Supply Chain Security0
- Malware scan not yet available for this package.Unverified
- Known CVEs could not be checked: this artifact ships no SBOM, so there is no dependency list to read. Publishing one would let us assess it.Unverified
- Install-script risk not yet assessed.Unverified
- Dependency health could not be checked: this artifact ships no SBOM, so there is no dependency list to read. Publishing one would let us assess it.Unverified
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 104 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability83
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 235 tokens (~117/item across 2 items; 2 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
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.
How do I install the io.github.eltociear/contract-guard-mcp server?
io.github.eltociear/contract-guard-mcp runs locally as a container image, launched with docker run --rm -i ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.
oci · ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
claude mcp add eltociear-contract-guard-mcp -- docker run --rm -i ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
{
"mcpServers": {
"eltociear-contract-guard-mcp": {
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
} {
"servers": {
"eltociear-contract-guard-mcp": {
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
} codex mcp add eltociear-contract-guard-mcp -- docker run --rm -i ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
{
"$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
}
}
} mcp_servers:
eltociear-contract-guard-mcp:
command: "docker"
args: ["run", "--rm", "-i", "ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"] {
"McpServers": {
"eltociear-contract-guard-mcp": {
"Transport": "stdio",
"Command": "docker",
"Arguments": [
"run",
"--rm",
"-i",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
} {
"mcpServers": {
"eltociear-contract-guard-mcp": {
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 −3
- Stability: pass → 0.80 functional
- 15 Sept 26 +1
- Stability: 0.97 → pass security
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Sept 26 +1
- Security disclosure: unverified → fail ▼ functional
- 10 Sept 26 0
- Security disclosure: fail → unverified ▼ functional
- 9 Sept 26 −3
- Stability: pass → 0.80 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed oci/ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | oci |
| Reason | No attestation published |
Background: How many MCP packages publish verified provenance →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_approval ~109
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.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | Chain (default: base) |
| owner | string | yes | Wallet that granted the approval |
| spender | string | yes | Contract/address approved to spend |
| token | string | yes | ERC20 token contract address |
No output schema declared.
No examples provided.
check_contract ~126
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM contract/token address (0x + 40 hex) |
| chain | string | – | Chain (default: base) |
No output schema declared.
No examples provided.
What is the io.github.eltociear/contract-guard-mcp server?
io.github.eltociear/contract-guard-mcp is listed in the public MCP registry as io.github.eltociear/contract-guard-mcp. EVM contract/token risk check + ERC20 approval (proxy, EIP-7702, unlimited-allowance). Zero deps. This page covers its container image (ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0).
Is the io.github.eltociear/contract-guard-mcp server safe to use?
io.github.eltociear/contract-guard-mcp scores 52 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 io.github.eltociear/contract-guard-mcp server expose?
io.github.eltociear/contract-guard-mcp exposes 2 tools: check_contract, check_approval. Their descriptions and schemas cost roughly 235 tokens of context every time the server is loaded.
Is the io.github.eltociear/contract-guard-mcp server still maintained?
io.github.eltociear/contract-guard-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 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 io.github.eltociear/contract-guard-mcp server under?
io.github.eltociear/contract-guard-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.