Verify an email address
Checks whether an email address exists and can receive mail, catch-all domains included, and returns valid, invalid or risky with the domain's mail provider.
Updated Nov 7, 2026
verify-email.md
Verify an email address
Checks whether an email address exists and can receive mail, catch-all domains included, and returns valid, invalid or risky with the domain's mail provider.
Note: Costs 0.2 credits whatever the result. Emails returned by the find calls are already verified and don't need this.
Set up
Use the first option your agent supports.
MCP (official, remote)
Add this server to your agent's MCP settings, then sign in when asked.
{ "mcpServers": { "anymailfinder": { "url": "https://api.anymailfinder.com/mcp" } } }
Call the MCP tool verify_email.
Server URL: https://api.anymailfinder.com/mcp
API (official)
- Base URL: https://api.anymailfinder.com/v5.1
- Endpoint:
POST /verify-email - Auth: send the header
Authorization: $ANYMAILFINDER_API_KEY - Get a key: https://app.anymailfinder.com/settings/api
- Docs: https://anymailfinder.com/email-finder-api/docs
Note: The key goes in Authorization as is, with no Bearer prefix. Searches can take up to 3 minutes; wait for the response instead of retrying. A 402 means the account is out of credits.
Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.
Rules
- Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
- Never print API keys.