MillionVerifier MCP by usefulapi
Check MillionVerifier credits, verify emails and monitor confirmed bulk verification jobs.
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": {
"millionverifier": {
"url": "https://millionverifier.usefulapi.io/mcp"
}
}
}Remote endpoints
https://millionverifier.usefulapi.io/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢millionverifier_credits
Read remaining MillionVerifier credits without starting verification.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢millionverifier_verify_email(email, confirm)
Verify one email using MillionVerifier's real-time API. Can spend credits and requires confirm:true. The vendor timeout is 10 seconds; this charged GET is never retried. Unknown/catch-all results do not establish deliverability. If the response is lost, check the dashboard before submitting again.
Input Schema
{
"type": "object",
"properties": {
"email": {
"type": "string",
"maxLength": 254,
"format": "email",
"pattern": "^(?:[A-Za-z0-9_'+\\-]+\\.)*[A-Za-z0-9_'+\\-]*[A-Za-z0-9_+-]@(?:[A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"
},
"confirm": {
"default": false,
"type": "boolean"
}
},
"required": [
"email"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟡millionverifier_upload_file(emails, filename, confirm)
Create and upload a CSV of 1–1,000 emails for bulk verification. Can start a billable job and spend credits; requires confirm:true. Returns a file ID for millionverifier_file_info. Never retries or automatically polls. A timed-out submission may still create a job; check the dashboard before repeating it. Download individual results in MillionVerifier.
Input Schema
{
"type": "object",
"properties": {
"emails": {
"minItems": 1,
"maxItems": 1000,
"type": "array",
"items": {
"type": "string",
"maxLength": 254,
"format": "email",
"pattern": "^(?:[A-Za-z0-9_'+\\-]+\\.)*[A-Za-z0-9_'+\\-]*[A-Za-z0-9_+-]@(?:[A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"
}
},
"filename": {
"default": "usefulapi-emails.csv",
"type": "string",
"maxLength": 64,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._-]*\\.csv$"
},
"confirm": {
"default": false,
"type": "boolean"
}
},
"required": [
"emails"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢millionverifier_file_info(file_id)
Read an existing bulk file's verification status, progress and aggregate result counts using its file ID. Includes failed/canceled jobs without starting, stopping or re-verifying anything. Does not download individual email results. Wait between polls.
Input Schema
{
"type": "object",
"properties": {
"file_id": {
"type": "string",
"pattern": "^[1-9]\\d{0,19}$"
}
},
"required": [
"file_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}Community
Evidence