# trust-check-mcp

Screens crypto wallets against the US Treasury OFAC SDN sanctions list via streamable HTTP. Built for AI agents operating on Base without API keys.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: paladinfi
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/paladinfi/trust-check-mcp
- Updated: 2026-06-01
- HTML: https://affpapa.org/en/nevibecode/mcp/trust-check-mcp

## What it does

The server connects over Streamable HTTP. It provides three tools: `trust_check_ofac_free` for live address lookups, `trust_check_preview` for sample fixtures, and `trust_check_health` for uptime. Sanctions records refresh daily from the US Treasury XML feed.

All responses include an Ed25519 signature. The tool is strictly read-only. It never signs transactions or executes contract calls. Traffic is capped at one request per second per IP address. Relying on `trust_check_preview` for production guardrails will fail because its signals are mock fixtures.

## Requirements
- Remote server: `https://trust.paladinfi.com/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http trust-check-mcp https://trust.paladinfi.com/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add trust-check-mcp --url https://trust.paladinfi.com/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "trust-check-mcp": {
            "url": "https://trust.paladinfi.com/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "trust-check-mcp": {
            "type": "http",
            "url": "https://trust.paladinfi.com/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http trust-check-mcp https://trust.paladinfi.com/mcp
```

## When to use it
- screen Base wallet addresses against the OFAC SDN list
- verify sanctions data freshness via Ed25519 response signatures
- test agent compliance flows using mock payload fixtures

## Example prompts
- Check if wallet 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is listed on OFAC SDN.
- Run `trust_check_health` to verify the latest sanctions list update timestamp.

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