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Email verification for AI agents: verify single or bulk emails, check credits and history.
About
Email verification for AI agents: verify single or bulk emails, check credits and history.
Remote endpoints: streamable-http: https://mcp.billionverify.com/mcp
Security Report
This is a straightforward email verification MCP server that calls the BillionVerify API with an API key and needs only network and environment-variable access, which matches its purpose. The main concerns are that the API key can be supplied as a tool argument (so it passes through the AI conversation), and that job, task, and webhook IDs are interpolated into URL paths without encoding. None of these are severe, and the score reflects only minor issues. Supply chain analysis found 1 known vulnerability in dependencies (0 critical, 1 high severity). Package verification found 1 issue.
3 files analyzed · 8 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: BILLIONVERIFY_API_KEY
Environment variable: BILLIONVERIFY_API_URL
How to Install & Connect
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
Documentation
View on GitHubFrom the project's GitHub README.
BillionVerify MCP Server — TypeScript
Connect any AI assistant to BillionVerify email verification via the Model Context Protocol. Built with the official MCP TypeScript SDK.
Option 1 — Hosted Server (No Installation)
Use BillionVerify's hosted MCP server. There is nothing to install and no API key to paste: you sign in with your BillionVerify account over OAuth, and the connection is tied to that account.
| Server URL | https://mcp.billionverify.com/mcp |
| Transport | Streamable HTTP |
| Authentication | OAuth 2.1 (sign in with your BillionVerify account) |
The hosted server does not accept API keys (
?api_key=,BV-API-KEYorAuthorization: Bearer <api key>are all rejected). If you want to use an API key, use Option 2.
Detailed step-by-step guide: docs/connect-chatgpt-claude.md.
ChatGPT (web)
- Settings → Apps & Connectors → Advanced settings → turn on Developer mode.
- Settings → Apps & Connectors → Create.
- Name
BillionVerify, MCP server URLhttps://mcp.billionverify.com/mcp, authentication OAuth → create. - Sign in to BillionVerify in the window that opens and approve access.
- In a new chat, click + → Developer mode → enable BillionVerify.
Claude (claude.ai / Claude Desktop)
- Customize → Connectors → + → Add custom connector.
- Name
BillionVerify, URLhttps://mcp.billionverify.com/mcp→ Add (leave Advanced settings empty). - Click Connect, sign in to BillionVerify and approve access.
- In a chat, click + → Connectors and make sure BillionVerify is on.
Team / Enterprise: an Owner adds the connector under Organization settings → Connectors, then each member clicks Connect.
Claude Code
claude mcp add --transport http billionverify https://mcp.billionverify.com/mcp
Then run /mcp inside Claude Code, select billionverify and finish the sign-in in your browser.
Cursor
Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project), then click Connect next to the server in Settings → MCP:
{
"mcpServers": {
"billionverify": {
"url": "https://mcp.billionverify.com/mcp"
}
}
}
Option 2 — Self-Hosted (TypeScript / Node.js)
Run your own MCP server using this TypeScript implementation.
Prerequisites
- Node.js 18+
Run via npx (no install)
BILLIONVERIFY_API_KEY=your_api_key npx billionverify-mcp
Claude Desktop config (self-hosted)
{
"mcpServers": {
"billionverify": {
"command": "npx",
"args": ["-y", "billionverify-mcp"],
"env": {
"BILLIONVERIFY_API_KEY": "your_api_key_here"
}
}
}
}
Install globally
npm install -g billionverify-mcp
billionverify-mcp
Install from source
git clone https://github.com/BillionVerify/billionverify-mcp.git
cd billionverify-mcp
npm install
npm run build
npm start
Environment Variables
| Variable | Description | Default |
|---|---|---|
BILLIONVERIFY_API_KEY | Your BillionVerify API key | — |
BILLIONVERIFY_API_URL | API base URL override | https://api.billionverify.com |
Available Tools
| Tool | Description |
|---|---|
verify_single_email | Verify a single email address in real-time |
verify_batch_emails | Verify up to 50 emails in one request |
get_account_balance | Check your credit balance |
get_verification_history | List verification history (paginated) |
get_verification_stats | Aggregated statistics for 7d / 30d / 90d / 1y |
get_task_status | Poll the status of an async file verification job |
get_download_url | Get download URL for results with status filters |
create_webhook | Subscribe to file completion events |
list_webhooks | List all configured webhooks |
delete_webhook | Remove a webhook |
health_check | Check server health |
License
MIT
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