7702 Sweeper Check

Name: 7702 Sweeper Check
Author: devx-agent

by devx-agentversion 1.1.0i★ –iComputer or cloud

Registry nameio.github.devx-agent/7702-sweeper-check

Install

Overview

Description from the maker (original English)

Free read-only EIP-7702 delegation / wallet-sweeper check for EVM addresses on 8 chains

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: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://sweeper-check.nextill-pos.workers.dev/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "7702-sweeper-check": {
      "command": "npx",
      "args": [
        "-y",
        "devx-7702-check",
        "mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add --transport http 7702-sweeper-check https://sweeper-check.nextill-pos.workers.dev/mcp

Or run it on your computer

claude mcp add 7702-sweeper-check -- npx -y devx-7702-check mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "7702-sweeper-check": {
      "url": "https://sweeper-check.nextill-pos.workers.dev/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "7702-sweeper-check": {
      "command": "npx",
      "args": [
        "-y",
        "devx-7702-check",
        "mcp"
      ]
    }
  }
}

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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "7702-sweeper-check": {
      "type": "http",
      "url": "https://sweeper-check.nextill-pos.workers.dev/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "7702-sweeper-check": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "devx-7702-check",
        "mcp"
      ]
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://sweeper-check.nextill-pos.workers.dev/mcp

Menu names can differ slightly by plan and over time.

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

We have not read this server’s tool list yet; we check endpoints in rotation.

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account devx-agent, 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32464 servers in this category
Published to the registry more recently than 83% of the other 32464 servers in this category
Basic checks equal to or better than 100% of the other 32464 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 7702 Sweeper Check 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?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 7 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, yontu

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

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

Install

yontu

by senrecep

Türkçe yazı denetimi: TDK kuralları, yapay zekâ izleri, metin türüne göre üslup.

Runs on your computerUpdated 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.

7702 Sweeper Check

Does your EVM wallet have an EIP-7702 delegation you didn't set?

Since Ethereum's Pectra upgrade, one signature can attach contract code to an ordinary wallet (EIP-7702). Smart-wallet upgrades use this legitimately. Drainers use it to install sweepers: tiny contracts that forward anything sent to your wallet straight to the attacker.

This project checks 8 chains at once: Ethereum, Base, BNB Chain, Arbitrum, OP, Polygon, Gnosis and Unichain.

Web (free): https://sweeper-check.nextill-pos.workers.dev
CLI (free): npx devx-7702-check 0xYourAddress
MCP server for AI agents (free): remote https://sweeper-check.nextill-pos.workers.dev/mcp, or local npx devx-7702-check mcp
JSON API (free): GET /api/basic?address=0x...
Full report (paid, 0.01 USDC on Base via [x402](https://x402.org)): GET /v1/check?address=0x..[,0x..], 1–20 addresses per call. It adds:
a delegate bytecode heuristic (a small contract with a hard-coded forwarding address = the sweeper shape);
source-verification status (Sourcify / Blockscout);
a risk level and what to do. You're charged only after the report is produced. Humans can pay with a browser wallet on the web page: you sign one USDC authorization and pay no gas.

Read-only. It never asks for or touches private keys or seed phrases.

How detection works

A 7702-delegated account's code is exactly 0xef0100 ‖ <20-byte delegate address>. The free check reads eth_getCode and the nonce on each chain. The paid report then fetches the delegate's bytecode and walks the opcodes (skipping PUSH data):

PUSH20 constants other than your own address and the ERC-4337 EntryPoints, combined with CALL, in a contract under 1.2 KB → high (sweeper pattern).
SELFBALANCE + CALL + a hard-coded address → medium.
Verified source or ERC-4337 smart-account shape → low.
Otherwise → medium/unknown.

These are heuristics, not guarantees. If a delegation you didn't create shows up, treat the key as compromised and move funds to a new wallet made on a clean device. Re-delegating to 0x0 doesn't help if an attacker holds the key.

CLI

npx devx-7702-check 0xabc... 0xdef...    # exit code 0 = none, 2 = delegation found, 1 = error

npx devx-7702-check 0xabc... --json

MCP

Claude Desktop / Cursor config:

{ "mcpServers": { "7702-sweeper-check": { "url": "https://sweeper-check.nextill-pos.workers.dev/mcp" } } }

or stdio: { "command": "npx", "args": ["-y", "devx-7702-check", "mcp"] }

Tools: check_7702_delegation(address), full_report_info().

x402 (agents)

GET /v1/check?address=... returns 402 with a PAYMENT-REQUIRED header (x402 v2, scheme exact, network eip155:8453, USDC 0x8335…2913, amount 10000 = 0.01 USDC). Pay with any x402 client. Discovery: /.well-known/x402.json, /openapi.json. Terms: /terms.

Layout

worker/: Cloudflare Worker source (page, free API, x402 paid route, remote MCP)
cli/: the npm package devx-7702-check (CLI + stdio MCP server)

Made by DevX. MIT.

Guide

What is an EIP-7702 sweeper?
Related free tool: Crypto Link Check — is that wallet or exchange link real?
Related free tool: Address Poisoning Check — is the address you are about to pay a poisoned lookalike?

7702 Sweeper Check

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

yontu

README from the maker

7702 Sweeper Check

How detection works

CLI

MCP

x402 (agents)

Layout

Guide