MCP (Model Context Protocol) lets AI assistants connect to external tools and data sources. The ZeroBounce MCP server brings ZeroBounce email validation and intelligence into MCP-compatible clients.
Claude Desktop, Cursor, VS Code, and any MCP-compatible client.
The server is open source. Validations use credits from your ZeroBounce account.
From your ZeroBounce account. See the API key docs for details.
The MCP server runs the same engine benchmarked at 98.0% accuracy on hard-to-validate domains (July 2026, 9 tools tested).
See the July 2026 accuracy benchmark
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INTEGRATION
Bring email validationⓘ into Claude, Cursor, VS Code, and any MCP-compatible AI tool. The ZeroBounce MCP server lets your AI assistant validate emails, find contacts, score deliverability, and check your account usage - all through natural conversation, powered by the ZeroBounce API.
Receive 100 free email validation credits monthly.
Credits never expire.*
Install the server:
npm install -g @zerobounce/mcpGet your API key from the ZeroBounce dashboard.
Add the server to your MCP client config (Claude Desktop, Cursor, VS Code, or any MCP-compatible client):
{ "command": "zerobounce-mcp", "args": ["--api-key=YOUR_API_KEY"]}Ask your AI assistant to validate emails, find contacts, or check your credits.
Claude Desktop, Cursor, VS Code, and any MCP-compatible client.
We recommend separate API keys for development and production and regular key rotation, per the repository's security best practices.
Automate list hygiene from the tools you already work in.
Lower bounce rates
Better deliverability
Protected sender reputation
Stronger email marketing results