Security & Testing

smartcontractexplainer.onrender.com

Checks EVM wallet token/NFT approvals and explains approval payloads in plain language with a safety verdict.

x402 supported1 endpoint2 known toolsFirst detected September 24, 2026Last detected September 24, 2026

ENDPOINT 1

https://smartcontractexplainer.onrender.com/mcp

No auth detected

MCP server metadata

Name: plaintext-wallet-checker
Version: 1.0.0

Capabilities

tools.listChanged

Known tools 2

check_wallet_approvals

Check an EVM wallet's live token/NFT approvals via GoPlus Security and get a plain-language safety verdict (SAFE, CAUTION, or RISK) with an explanation.

Inferred read-only

explain_approval

Explain an arbitrary approval/permission JSON payload in plain language, when you already have the data instead of needing an on-chain lookup.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.plaintext-wallet-checker]
url = "https://smartcontractexplainer.onrender.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "plaintext-wallet-checker": {
      "type": "http",
      "url": "https://smartcontractexplainer.onrender.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: plaintext-wallet-checker
Remote MCP URL: https://smartcontractexplainer.onrender.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "plaintext-wallet-checker": {
      "url": "https://smartcontractexplainer.onrender.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "plaintext-wallet-checker": {
      "type": "http",
      "url": "https://smartcontractexplainer.onrender.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "plaintext-wallet-checker",
  "transport": "streamable-http",
  "url": "https://smartcontractexplainer.onrender.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for onrender.com was fetched 2026-09-27T04:50:32.253Z.

Trust status Trusted

onrender.com is assessed as Trusted: Domain has an established technology history spanning over a year.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.