Base Approval Risk Check

com.madebydevx.approvalsPublished by approvals.madebydevx.comOfficial publisherv1.0.0Updated Nov 6, 2026

Find risky ERC-20 approvals on a Base wallet and get revoke calldata. Paid x402 report.

VerifiedStreamable HTTPWeb executableFinanceSecurity & Monitoring

Overview

AI-generated overview

Remote MCP server that quotes and pre-checks a paid x402 report on risky ERC-20 approvals for a Base wallet, returning revoke calldata.

What you can do
  • Quote the paid approval risk report: price, payTo address and the exact x402 URL for a wallet
  • Validate a 0x address and tell whether it is an EOA or a contract on Base before paying
  • Report coverage described as unlimited and over-balance approvals plus revoke calldata, delivered through the paid x402 call
When to use it
Useful when you want an assistant to screen a Base wallet for risky ERC-20 token approvals and obtain revoke calldata, and you are willing to pay per report in USDC over x402.
Requirements
A remote streamable HTTP endpoint at approvals.madebydevx.com; no package, environment variables or headers are declared. Payment of 1 USDC on Base via x402 is required for the full report; a wallet able to pay on Base is implied.
Before you install
The full report costs 1 USDC on Base per call, so the assistant can trigger real spending. The quote tool returns a payTo address and payment URL that should be verified before paying. The report concerns wallet approval data, which is sent to a third-party service.

Installation

In SourceWeft

  1. Open Base Approval Risk Check in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.madebydevx.approvals%2Fapprovals/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "base-approval-risk-check": {
      "type": "http",
      "url": "https://approvals.madebydevx.com/mcp"
    }
  }
}

Tools

2

approvals_quote

Quote an approval risk check

Free: price, payTo and the exact x402 URL to buy a Base ERC-20 approval risk report (unlimited/over-balance approvals + revoke calldata) for a wallet.

Parametersaddressrequired

approvals_check_address

Validate an address

Free: checks the 0x address format and whether it is an EOA or contract on Base before you pay.

Parametersaddressrequired

Version history

1
  1. v1.0.0LatestNov 6, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.