# mcp

Check email addresses individually or in batches, then ask for your remaining credit balance. The MCP server works with Claude Code and other supported clients.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: BounceProtect
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/BounceProtect/bounceprotect-mcp
- Updated: 2026-06-01
- HTML: https://affpapa.org/en/nevibecode/mcp/bounceprotect-mcp

## What it does

BounceProtect gives an AI assistant tools to check one email address or a list and identify addresses to remove. A separate tool reports the remaining credit balance. Batch checks can handle up to 100 addresses at once.

You need a BounceProtect API key. In Claude Code, the server runs through `npx` as an MCP server, with the key passed in the `YOUR_API_KEY` environment variable. Each address check uses one credit, so check your balance before sending a large list.

## Requirements
- Needs: Node.js (commands run via npx)
- Environment variables: `YOUR_API_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add mcp -e YOUR_API_KEY=<YOUR_API_KEY> -- npx -y @bounceprotect/mcp
```
Replace <…> with your own values

### Codex

**Platform CLI**
```bash
codex mcp add bounceprotect-mcp --env YOUR_API_KEY=<YOUR_API_KEY> -- npx -y @bounceprotect/mcp
```
Replace <…> with your own values

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "bounceprotect-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "@bounceprotect/mcp"
            ],
            "env": {
                "YOUR_API_KEY": "<YOUR_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "bounceprotect-mcp": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "-y",
                "@bounceprotect/mcp"
            ],
            "env": {
                "YOUR_API_KEY": "<YOUR_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add -e YOUR_API_KEY=<YOUR_API_KEY> bounceprotect-mcp npx -y @bounceprotect/mcp
```
Replace <…> with your own values

## When to use it
- check a single email address
- screen a list of addresses before a campaign
- find addresses to remove from a list
- check the remaining BounceProtect credits

## Example prompts
- Check the address `john@acmecorp.com`.
- Review this list and identify addresses to remove: [list].
- Tell me how many BounceProtect credits remain.

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