⚡ AI Assistant · Local MCP server (stdio)

Verify emails with Cursor before your AI SDR sends

Cursor supports MCP servers in both chat and Agent mode. Wire up RocketVerifier once in Cursor's MCP settings, and any agent task — like validating emails scraped for a lead-gen script — can call the verification API without you writing a single line of integration code.

Get Your API Key See Setup

Example, inside Cursor:

"This script scraped 1,200 emails from a directory site. Verify them in batches and write the safe-to-send ones to clean_leads.csv."

Cursor calls RocketVerifier's verification API for you and hands back a clean, classified result — no dashboard upload, no manual CSV round-trip.

Setup

Connect Cursor in 3 Steps

Takes about two minutes. 100 free credits included so you can try it before you pay for anything.

1

Get an API key

Sign up free and grab a key from the RocketVerifier dashboard — claim 100 free trial credits with a quick card check.

2

Add the MCP server

Paste the snippet into Cursor’s mcp.json under Settings → MCP, then reload.

3

Call it from chat or Agent mode

Ask Cursor to verify emails inline, or let an autonomous agent task call verify_email/create_bulk_job as part of a larger workflow.

Add to Cursor’s mcp.json (Settings → MCP):

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

Full setup guides are in the MCP documentation and API reference.

Confidence scores, not guesses

Every result comes back with a 0–100 score and evidence — SMTP response, provider detection, DNS records — so Cursor can make the send/skip call.

Idempotent by default

Every write request auto-generates an Idempotency-Key, so a retried or automated call can never double-charge credits or create duplicate jobs.

Never pay for a non-answer

Unknowns and duplicates are always free — unlike incumbents that charge for "risky" or "unknown" results your workflow can't act on.

FAQ

Common Questions About Cursor + RocketVerifier

Does this work in Cursor’s Agent mode, not just chat?

Yes — any Cursor surface that can call MCP tools (chat, Agent mode, background agents) can use RocketVerifier’s tools the same way.

Can I use this to validate emails inside a script I’m writing?

Absolutely. Ask Cursor to verify a batch of scraped or generated emails as part of building a lead-gen or outreach script, and it will call the MCP tools directly.

Is there a CLI alternative if I don’t want MCP?

Yes, the rocketverifier CLI (npx @rocketverifier/cli) exposes the same verify/bulk/jobs/credits commands for terminal-driven workflows.

Also works with

🟠 Claude 🟢 ChatGPT 🔗 n8n
⚡

Connect Cursor Today

Get an API key, drop in the config, and let Cursor verify emails before you ever send. 100 free credits included.

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