Crypto MCP Server
by thenextgennexus.com
Live cryptocurrency prices and FX rates as agent tools.
Runs in the cloudUpdated today
Install
Contract Guard MCP
Overview
Description from the maker (original English)
EVM contract/token risk check + ERC20 approval (proxy, EIP-7702, unlimited-allowance). Zero deps.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Crypto & blockchain
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- DockerDocker installed
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"contract-guard": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
}Run this in your terminal
claude mcp add contract-guard -- docker run -i --rm ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"contract-guard": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"contract-guard": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/eltociear/contract-guard-mcp:mcp-1.1.0"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account eltociear, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Crypto & blockchaini
- More stars than 0% of the other 1614 servers in this category
- Published to the registry more recently than 21% of the other 1614 servers in this category
- Basic checks equal to or better than 100% of the other 1614 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Contract Guard MCP safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 5 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Docker on your computer.
What can I use instead?
In the same category: Crypto MCP Server, Crypto Defi MCP, Highwire
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Crypto Defi MCP
by thenextgennexus.com
DeFi TVL, stablecoin supply, perp funding, top coins and prediction-market data as agent tools.
Runs in the cloudUpdated today
Install
Highwire
by HigherMaestro
Trade, launch and research higher.fun coins on Solana, from any AI agent. Unsigned or policy-signed.
Computer or cloudUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
contract-guard-mcp
MCP server for a pre-interaction risk check on any EVM contract/token — what an agent needs before it approves, swaps, or trusts an address.
Tool: check_contract(address, chain="base") →
- is-contract vs EOA / self-destructed
- EIP-7702 delegated-EOA detection
- upgradeable proxy detection (EIP-1967 + legacy zeppelinos)
- ERC20 metadata (name / symbol / decimals / totalSupply)
- risk score + actionable flags
Chains: Base, Ethereum. Pure public JSON-RPC, zero dependencies, no signing.
Also available as a pay-per-call x402 HTTP endpoint: https://eltociear-contract-guard.hf.space (POST /check, $0.005 USDC on Base).
Run
docker run -i --rm ghcr.io/eltociear/contract-guard-mcp:mcp-latestor
python3 server.py
MIT licensed.
Tools
check_contract(address, chain)— is-contract/EOA, EIP-7702, proxy, ERC20 metadata, risk scorecheck_approval(token, owner, spender, chain)— ERC20 allowance audit; flags unlimited approvals (the #1 drain vector)
Free MCP vs paid x402
This MCP server is free (run it locally / via your client). For server-side, batch, or no-install use, the same engine is a pay-per-call x402 HTTP API — POST https://eltociear-contract-guard.hf.space/check ($0.005 USDC on Base, no signup). Your agent's wallet pays per call.
Professional audit services
Maintained by the same author — paid services on Polar (Stripe checkout):
- [MCP Security Audit Report — $5](https://buy.polar.sh/polar_cl_sut9rtngBRutEhBAGk1FmwRYSLrAebowkPw8g2C5Op7) — one-off audit of your MCP server: 68 attack patterns, severity-rated PDF report with concrete fixes.
- [Security Pulse — $5/mo](https://buy.polar.sh/polar_cl_jKHyL3Ge9u5YGAsjgixp16UYrhU0WGldxvRmN03expZ) (annual $50) — monthly briefing on newly disclosed MCP server vulnerabilities, scan stats across 100+ tracked repos, mitigation playbooks.
- [Pro Audit Stack — $20/mo](https://buy.polar.sh/polar_cl_C37THjfoFMdOnu6xc1TnMIezYNuBbbivXbvFb3DCpZa) — for teams running MCP servers in CI/CD: 50 hosted scans/month, Discord access, 24h SLA on vulnerability questions.
Full catalog: polar.sh/eltociear
Also live: clean-read ($0.005 / call)
Same operator, same x402 rails: [clean-read](https://eltociear-skill-audit.hf.space/read) turns any URL into clean Markdown for AI agents — fetches the page, strips nav/ads/boilerplate (trafilatura), returns the main content with title and word count. POST https://eltociear-skill-audit.hf.space/read — $0.005 USDC on Base, no signup.