FindLeadEmails — Claude Code MCP server: find and verify B2B emails
Looks up and verifies work email addresses from a name and a company domain, one at a time or in bulk. Runs as a remote MCP server inside your assistant.
claude mcp add --transport http mcp https://www.findleademails.com/api/mcpWhat FindLeadEmails does
The server answers at https://www.findleademails.com/api/mcp over Streamable HTTP. Nothing gets installed locally — the repository only carries setup docs and config files. The find_email tool takes first_name, last_name and company_domain (a LinkedIn company page URL also works) and comes back with a verified work address. verify_email checks an address you already hold.
Bulk work splits two ways. find_emails_bulk handles a batch in one synchronous call, but it is capped and returns batch_too_large past that cap. create_job queues a long list for background processing and hands back a job id; get_job_status reports progress and per-outcome counters, and get_job_results pages through rows with cursor until next_cursor is null. Both of those calls cost nothing.
Auth is OAuth 2.1 with PKCE, or a bearer token in the Authorization header. Keys are created in the developer dashboard and shown once. Use the www host: https://findleademails.com redirects, and some clients drop the Authorization header while following it, so the request fails. Tool discovery (initialize, tools/list) works without credentials.
What it helps with
- find a person's work address from a name and company domain
- check whether an old address in your list still delivers
- run a batch of contacts in a single call
- queue a long list for background processing and page through the results
- watch job progress and per-outcome counters
Example prompts for the agent
- Find the work email for Jane Doe at example.com
- Verify whether
[email protected]is deliverable - Queue the list in
leads.csvand tell me how many rows are done
How to install FindLeadEmails
Platform CLI: remote server
claude mcp add --transport http mcp https://www.findleademails.com/api/mcpPlatform CLI: remote server
codex mcp add findleademails --url https://www.findleademails.com/api/mcpConfig file
{
"mcpServers": {
"findleademails": {
"url": "https://www.findleademails.com/api/mcp"
}
}
}Config file
{
"servers": {
"findleademails": {
"type": "http",
"url": "https://www.findleademails.com/api/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http findleademails https://www.findleademails.com/api/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about FindLeadEmails
How do I install FindLeadEmails in Claude Code?
Run claude mcp add --transport http findleademails https://www.findleademails.com/api/mcp, then run /mcp, pick findleademails and choose Authenticate.
What does FindLeadEmails do?
It finds and verifies B2B work emails, either one contact at a time or as a list, with deliverability checks. It runs as a remote MCP server inside your assistant.
Do I need an API key if I sign in with OAuth?
No. Add the URL with no Authorization header and approve the sign-in in your browser. The key is only for setups that skip OAuth.
