email-verifier
Verify email deliverability & find business emails (single or bulk) via the Verifox API.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"email-verifier": {
"command": "npx",
"args": [
"verifox-mcp"
]
}
}
}Runnable packages
1.2.1stdioRemote endpoints
https://mcp.verifox.ai/mcpstreamable-httpWhat it can do
Tool inventory
Tools (6)
⚪verify_email(email, proxy)
Verify whether ONE email address is deliverable. Checks syntax, MX, SMTP, catch-all, disposable, free-provider and role detection, and returns a 0-100 quality score. Charges 1 Fox Credit per uncached email.
Input Schema
{
"type": "object",
"properties": {
"email": {
"type": "string",
"format": "email",
"description": "Email address to verify"
},
"proxy": {
"type": "boolean",
"description": "Use a SOCKS5 proxy for the SMTP check"
}
},
"required": [
"email"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_emails(emails, wait)
Bulk-verify a LIST of email addresses. Submits the whole list, waits for completion, and returns one result per email (same fields as verify_email). Best for cleaning lead lists. Charges 1 Fox Credit per email. Large lists that don't finish quickly return a jobId to poll with get_job.
Input Schema
{
"type": "object",
"properties": {
"emails": {
"type": "array",
"items": {
"type": "string",
"format": "email"
},
"minItems": 1,
"maxItems": 100000,
"description": "Email addresses to verify"
},
"wait": {
"type": "boolean",
"description": "Wait for results in this call (default true). Set false to just get a jobId."
}
},
"required": [
"emails"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢find_email(first_name, last_name, domain, middle_name)
Find ONE person's business email from their name and company domain. Generates ~50 permutations and SMTP-verifies each, waits for the result, and returns the best match (or not_found). Charges 10 Fox Credits per find.
Input Schema
{
"type": "object",
"properties": {
"first_name": {
"type": "string",
"description": "Person's first name"
},
"last_name": {
"type": "string",
"description": "Person's last name"
},
"domain": {
"type": "string",
"description": "Company domain, e.g. stripe.com"
},
"middle_name": {
"type": "string",
"description": "Optional middle name for more permutations"
}
},
"required": [
"first_name",
"last_name",
"domain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢find_emails(contacts, wait)
Bulk-find business emails for a LIST of contacts (name + company domain each). Submits the list, waits for completion, and returns the found email per contact. Up to 1000 contacts. Charges 10 Fox Credits per contact. Large lists that don't finish quickly return a jobId to poll with get_job.
Input Schema
{
"type": "object",
"properties": {
"contacts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"first_name": {
"type": "string"
},
"last_name": {
"type": "string"
},
"name": {
"type": "string",
"description": "Full name (alternative to first_name/last_name)"
},
"middle_name": {
"type": "string"
},
"domain": {
"type": "string",
"description": "Company domain"
}
},
"required": [
"domain"
],
"additionalProperties": false
},
"minItems": 1,
"maxItems": 1000,
"description": "Contacts to find emails for"
},
"wait": {
"type": "boolean",
"description": "Wait for results in this call (default true)"
}
},
"required": [
"contacts"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢get_credits
Get the current Fox Credit balance for the Verifox account tied to the API key. Free — no credits charged. Use it to check remaining balance before a big verify/find run (verify = 1 credit/email, find = 10 credits/contact).
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢get_job(job_id, type)
Check an async job started by verify_emails, find_email, or find_emails. Returns results if finished, otherwise the current status. Use the type shown in the submitting tool's response.
Input Schema
{
"type": "object",
"properties": {
"job_id": {
"type": "string",
"description": "Job ID from verify_emails / find_email / find_emails"
},
"type": {
"type": "string",
"enum": [
"verify_bulk",
"find_single",
"find_bulk"
],
"description": "Job type: verify_bulk, find_single, or find_bulk"
}
},
"required": [
"job_id",
"type"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}Recommended Prompts
find_emailfind_emailget_creditsget_creditsfind_emailget_creditsCommunity
Evidence