Bouncer has launched an MCP server that lets customers run email verification from inside AI assistants including ChatGPT and Claude.
The connector uses the Model Context Protocol, the standard that lets AI applications call external tools. Once a Bouncer account is linked, users can verify single addresses, run batches, check domains, use Bouncer’s Toxicity Check and see how many credits remain. A CSV or pasted list can be handed to the assistant for processing.
Bouncer says the server runs on the same verification engine as its app and API and returns the same results. There is no extra charge for the connector. Verification draws on existing credits. Authentication uses OAuth 2.1 and connections can be revoked from the Bouncer dashboard.
The hosted, OAuth-based design is the point of difference. ZeroBounce released an open-source MCP server in December 2025, distributed via npm. That package runs locally and takes an API key, which suits developers and IDE users. Bouncer’s server runs remotely and connects to consumer assistants without an install step.
A 59-vendor census of MCP adoption published by Cleanlist on 1 September 2026 confirmed Bouncer’s endpoint was live and found no hosted equivalent from ZeroBounce, Emailable, NeverBounce, MillionVerifier or Clearout. The census tested hosted endpoints only and recorded ZeroBounce as having no server at all, which overlooks the locally run package ZeroBounce published in December. Cleanlist sells email verification itself, which readers should weigh. Hunter, which combines email finding with verification, also has a hosted server.
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