Sales Intelligence
IsTempMail
Disposable and temporary email detection API for blocking fake signups.
Connect with AI
Give docs to Claude
Public API
Available
MCP
Not available
Free tier
Available
How to connect
Give docs to Claude
Open API docs What your agent can do
01Email Verification
02Disposable Email Detection
03Signup Fraud Prevention
Connect IsTempMail
01Open the API docsGive the REST documentation to Claude Code or Cursor — an JavaScript SDK is available.
02AuthenticateConfigure API Key without pasting secrets into chat.
03Build the first workflowUse the starter prompt below as a brief for your coding agent.
Starter prompt
“Claude, use IsTempMail to check this list of signup emails and block any from disposable providers.”
About IsTempMail
IsTempMail checks email addresses and domains against a 138k-domain blocklist of disposable email providers in real time. Single REST endpoint returns a simple JSON verdict (blocked, or unresolvable), plus a free WordPress plugin. Started as a tool for stopping fake registrations and free trial abuse.
Related options
Similar tools
Debounce
Email verification API with disposable detection and data enrichment features.
View Details
Mailcheck
Email verification using social network data.
View Details
ZeroBounce
Email validation API with detailed deliverability scoring and abuse detection.
View Details
EmailListVerify
Bulk email verification service for clean lists.
View Details