Use RocketVerifier with AI Assistants

Model Context Protocol (MCP) server

RocketVerifier ships an official Model Context Protocol server, so Claude, ChatGPT, Cursor, and any other MCP-compatible AI assistant can verify emails, run bulk jobs, and check deliverability signals directly from a conversation — no code required.

@rocketverifier/mcp on npm

Local MCP server for Claude Desktop, Cursor, and other stdio clients

View on npm

Get Your API Key

You'll need an API key to connect any MCP client

Dashboard

Two Ways to Connect

Local (stdio)

Run the @rocketverifier/mcp package via npx. Works with Claude Desktop, Cursor, and any client that spawns local MCP servers.

Hosted (Streamable HTTP)

Skip the install entirely — connect directly to https://api.rocketverifier.com/mcp with your API key as a Bearer token. Works with ChatGPT and other remote-MCP clients.

Claude Desktop

Add this to your claude_desktop_config.json:

claude_desktop_config.json

{
  "mcpServers": {
    "rocketverifier": {
      "command": "npx",
      "args": ["-y", "@rocketverifier/mcp"],
      "env": {
        "ROCKETVERIFIER_API_KEY": "rv_live_your_api_key"
      }
    }
  }
}

Cursor

Add this to .cursor/mcp.json (project) or your global MCP settings:

.cursor/mcp.json

{
  "mcpServers": {
    "rocketverifier": {
      "command": "npx",
      "args": ["-y", "@rocketverifier/mcp"],
      "env": {
        "ROCKETVERIFIER_API_KEY": "rv_live_your_api_key"
      }
    }
  }
}

ChatGPT & Other Remote-MCP Clients

If your client supports remote (Streamable HTTP) MCP servers, connect straight to our hosted endpoint — no install required:

Remote MCP connection

URL:  https://api.rocketverifier.com/mcp
Auth: Bearer rv_live_your_api_key

Available Tools

Tool	Credits	Description
verify_email	1	Real-time single email verification
create_bulk_job	1 per email	Submit up to 100,000 emails for bulk verification
get_job_status	Free	Check progress/summary counts of a bulk job
get_job_results	Free	Fetch paginated per-email results
list_jobs	Free	List recent bulk jobs
cancel_job	Free	Cancel a pending/processing job and refund credits
check_credits	Free	Check credit balance and usage
check_disposable	Free	Check if an email/domain is disposable
mx_lookup	Free	Look up MX records for a domain
check_domain_auth	Free	Score SPF/DMARC/DKIM and get fix recommendations

Example Prompts

“Verify whether jane@acme.com is deliverable.”

“Check if mailinator.com is a disposable email provider.”

“Run a domain authentication check on rocketverifier.com and tell me what DNS records I'm missing.”

“Verify this list of 200 emails in bulk and summarize how many are risky.”

“How many RocketVerifier credits do I have left?”

Testing Without Spending Credits

Use a sandbox API key (rv_test_...) with @sandbox.rocketverifier.com addresses (e.g. deliverable@sandbox.rocketverifier.com) to get predictable results without consuming credits or hitting live mailboxes.

Need Help?

Having trouble connecting an MCP client? We're here to help.

Contact Support View on GitHub