# Skavio USDC Payment Verification & Proof MCP

Check USDC transfers, compare a recipient and exact amount, and create transaction-evidence PDFs. Paid calls need an x402-capable wallet client.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: skavio-eu
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/skavio-eu/skavio-agent-tools
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/mcp/skavio-usdc-payment-verification-proof-mcp

## What it does

The server offers tools to inspect USDC transfers on Base and Solana, match a recipient address against an exact amount, and produce PDFs containing blockchain evidence. A separate paid tool runs a bounded DNS/TLS audit on a public domain. Discovery tools are free; some processing tools require Agent Tools credentials.

Connect over Streamable HTTP at `https://www.skavio.eu/mcp`. Add the server to Claude Code with the commands below. A regular MCP client cannot handle x402 payments on its own, so paid calls need a wallet client with x402 support. Payment settles in USDC on Base, while RPC availability and transaction finality affect inspection results. The PDF is not a tax invoice.

## Requirements
- Remote server: `https://www.skavio.eu/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http paid-micro-apis https://www.skavio.eu/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add skavio-usdc-payment-verification-proof-mcp --url https://www.skavio.eu/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "skavio-usdc-payment-verification-proof-mcp": {
            "url": "https://www.skavio.eu/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "skavio-usdc-payment-verification-proof-mcp": {
            "type": "http",
            "url": "https://www.skavio.eu/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http skavio-usdc-payment-verification-proof-mcp https://www.skavio.eu/mcp
```

## When to use it
- inspect a USDC transfer
- match a recipient address and exact amount
- create a PDF with transaction evidence
- audit DNS and TLS for a public domain

## Example prompts
- Check this USDC transfer using its transaction hash and the Base network.
- Match this payment to recipient `0x...` and amount `12.5` USDC.
- Create a PDF with blockchain evidence for this transaction.

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md