BETA
Grab 100 Free Credits
Get a Demo

ReachStream EmailVerifier — Claude Connector

Documentation for connecting the ReachStream EmailVerifier MCP connector to Claude.

What this connector does

The ReachStream EmailVerifier connector lets you verify email addresses directly from a Claude conversation, using your own Reachstream account and credits. Ask Claude to verify one email or a batch of them, and it calls the same Reachstream Email Verifier API that powers the Reachstream dashboard — no copy-pasting into a separate tool.

Who this is for

Anyone with an existing Reachstream account. If you don't have one yet, learn more at reachstream.com/email-verifier and sign up at emailverifier.reachstream.com — the connector authenticates with your Reachstream login, it doesn't create a separate account of its own.

What it can do

  • Verify email addresses — submit one or more addresses for verification; processing happens in the background and deducts credits from your Reachstream account as it completes.
  • Get email verification result — check the status and result of a previous verification request by its ID.
  • Get multiple email verification results — check several verification requests in one call.

How to connect

Claude Desktop

  1. Open Claude Desktop → Settings → Connectors.
  2. Add the ReachStream EmailVerifier connector (search the directory, or add it as a custom connector using the URL below if it isn't listed yet).
  3. Server URL: https://emailverifier-mcp.reachstream.com/mcp
  4. Click Authenticate — your browser opens to a sign-in page. Sign in with your Reachstream email/password, or with Google, Microsoft, or LinkedIn if your account uses one of those.
  5. Once connected, ask Claude to verify an email address to try it out.

Claude Code

From a terminal:

claude mcp add --transport http "ReachStream EmailVerifier" https://emailverifier-mcp.reachstream.com/mcp

Then run /mcp inside Claude Code and authenticate the same way as above.

Authentication

This connector uses OAuth 2.1 (authorization code flow with PKCE). Every user authenticates with their own Reachstream account — there is no shared or static API key. Signing in resolves your own account's API key for the session, so verifications are billed against your own credits, never anyone else's.

Support

Questions or issues connecting? Visit the Reachstream Help Center, or contact support@reachstream.com.

Privacy

See Reachstream's Privacy Policy for what data is collected and how it's used, the Terms of Service, and the Privacy Center to manage your data preferences.

For developers

This connector is a thin wrapper around the Reachstream Email Verifier REST API. Its interactive reference docs are available at Swagger UI and ReDoc if you'd like to call the API directly instead of through Claude.