mailboxvalidator.com

MailboxValidator provides email verification and list-cleaning services for checking whether email addresses are valid, reachable, disposable, or from free providers. It also offers bulk email cleaning and integrations with marketing platforms.

4 integrations · MCP · REST

MailboxValidator exposes three HTTP email-checking APIs (single validation, disposable-email check, and free-email check) plus an npm-distributed local MCP server that uses the same API key.

discovered 1d ago

MCP servers1

MailboxValidator MCP Serverdiscoveredmcp

REST · OpenAPI3

MailboxValidator Disposable Email Checker APIdiscoveredrest
MailboxValidator Single Email Validation APIdiscoveredrest
MailboxValidator Free Email Checker APIdiscoveredrest

Credentials

MailboxValidator API keyapi_keyGet key ↗

Sign up for an API plan from MailboxValidator plans or the free API signup. After signing in, open your dashboard to retrieve the API key. The docs state the API key is passed as the key query parameter.

conventions · 0/8 published

integrations.json✗/.well-known/integrations.json
llms.txt✗/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing