# Zerobounce — MCP server on mcp.ai
> Connect your Zerobounce account and use 20 tools for email straight from your AI agent. Connect with your own API key. ZeroBounce is an email validation and deliverability platform that helps businesses improve email marketing performance by identifying and removing invalid or risky email addresses.

By: mcp.ai · official
Page: https://mcp.ai/zerobounce

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_zerobounce?ms=1787293560000
Add it as a custom/remote MCP connector, then authenticate when prompted.

## REST API (no MCP client required)
Every tool is also a REST endpoint, authed with a workspace API key.
Discover: GET https://api.mcp.ai/api/zerobounce/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/zerobounce/<endpoint>
  Authorization: Bearer sk_live_…   # create one at https://mcp.ai/settings/api-keys
  Content-Type: application/json
  Body: { …args }   →   { "ok": true, "tool": "<id>", "result": { … } }

## Developer docs
How to use (MCP or REST), markdown: https://mcp.ai/zerobounce/skill.md
Postman collection (v2.1): https://mcp.ai/zerobounce/postman.json

## Tools
- zerobounce_activity_data(email: string) — Tool to get activity data (opens, clicks, etc.) for a given email. Use after confirming the email address to gauge engagement recency.
- zerobounce_ai_scoring_single(email: string) — Tool to score a single email address using ZeroBounce AI. Use when you need real-time email lead quality feedback before outreach. Example prompt: "Score the email mark@gmail.com."
- zerobounce_allow_block_list(rule: string, value: string, target: string) — Tool to manage allowlist and blocklist for email validation. Use when you need to programmatically add or modify custom filters before validating emails.
- zerobounce_batch_validate_emails(api_key?: string, timeout?: integer, email_batch: object[], verify_plus?: boolean, activity_data?: boolean) — Tool to validate a batch of email addresses in real time. Use when you need to validate up to 200 emails at once with optional activity data.
- zerobounce_delete_ai_scoring_file(file_id: string) — Tool to remove a completed AI scoring file from ZeroBounce servers. Use when the file status is 'Complete' and you need to remove it.
- zerobounce_delete_file(file_id: string) — Tool to delete a file that was submitted for bulk validation. Use when file status is 'Complete'.
- zerobounce_domain_search_file_status(file_id: string) — Tool to get the processing status of a file submitted for bulk domain search. Use after submitting the file to poll status.
- zerobounce_domain_search_get_file(file_id: string) — Tool to download the results file for a completed bulk domain search job. Use when you have the file_id and the job is complete.
- zerobounce_domain_search_send_file(file: object, domain_column: integer, has_header_row?: boolean) — Tool to upload a file for bulk domain search. Use when you have many domains in a CSV/TXT and need to lookup their details in bulk.
- zerobounce_domain_search_single(domain?: string, last_name?: string, first_name?: string, middle_name?: string, company_name?: string) — Tool to identify common email address formats for a given domain. Use when you need to guess email patterns for a company based on its domain.
- zerobounce_email_finder_delete_file(file_id: string) — Tool to delete a file that was submitted for bulk email finding. Use when the file processing status is 'Complete' and you need to remove it.
- zerobounce_email_finder_file_status(file_id: string) — Tool to get the processing status of a file submitted for bulk email finding. Use when you need to poll the progress of a bulk email-finder file upload.
- zerobounce_email_finder_send_file(file: string, file_name: string, domain_column: integer, has_header_row?: boolean, full_name_column?: integer, last_name_column?: integer, first_name_column?: integer, middle_name_column?: integer) — Tool to upload a file for bulk email finding. Use when you have lists of names and domains to find emails in bulk via CSV/TXT upload.
- zerobounce_get_api_usage(end_date: string, start_date: string) — Tool to retrieve API usage statistics for a given period. Use when you need usage metrics between two dates.
- zerobounce_get_credit_balance() — Tool to retrieve your current ZeroBounce email validation credit balance. Use when you need to monitor remaining credits to avoid service interruptions.
- zerobounce_get_email_finder_file(file_id: string) — Tool to download the results file for a completed bulk email finder job. Use when you have the file_id and the job is complete.
- zerobounce_list_evaluator(file: string, file_name: string, email_address_column: integer) — Tool to evaluate the quality of an email list. Use when you have a list of emails and need a quick health check before full validation.
- zerobounce_list_filters() — Tool to retrieve all email addresses and domains in your allowlist and blocklist filters. Use when you need to view or audit current filter rules before validation.
- zerobounce_send_file(file: string, file_name: string, return_url?: string, gender_column?: integer, has_header_row?: boolean, last_name_column?: integer, remove_duplicate?: boolean, first_name_column?: integer, ip_address_column?: integer, email_address_column: integer) — Tool to upload a file for bulk email validation. Use when you need to validate large lists of emails via CSV or TXT file.
- zerobounce_validate_email(email: string, ip_address?: string, credits_info?: boolean) — Tool to validate a single email address in real time. Use when you need to confirm deliverability and domain details before sending emails. Each call consumes API credits; set `credits_info: true` to 

## Example prompts
- "What can I do in Zerobounce?"
- "Show me a summary of my Zerobounce account"

## Links
Docs: https://mcp.ai/docs/mcps/zerobounce
Website: https://mcp.ai/mcps/zerobounce