MxToolBox RESTful API

Integrate our high quality lookup tools and monitoring services with your applications!

MxToolbox API provides you with everything you need to manage your systems, improve your applications, or enhance your datasets. Develop your own internal tools or expand the data available to your team with a simple integration.

Get Started Today!

Dozens of use cases!

At MxToolbox, we know tools and monitors are useful to administrators, developers and techs around the world, but sometimes you need MxToolbox information piped into a mission-critical systems. Now you can!

MxToolbox offers a REST-based API that enables you to run lookups and query monitors just like you can from our site. Our customers are using MxToolbox API for many reasons:

  • Piping customer reputation information into Ticketing and Support systems
  • Integrating Mail setup information into Prospecting tools and CRMs
  • Integrating reputation information into Email Management tools
  • Automatically setting up monitors for customers and servers as part of automated provisioning systems
  • Using DNS information as part of Marketing automation
Contact Us to learn more.

What can you do?

MxToolbox RESTful API enables you to:

  • Run all the Lookups in the Supertool*
  • Add/Remove or Query Monitor Status
  • Check your API usage

We provide everything you need (except code) to integrate MxToolbox with your systems and tools.

Contact Us


  • Blacklist, both domain and IP.
  • DNS - A, PTR, DNSSEC, DNS Propagation, etc.
  • Email - SMTP, MX, SPF, DKIM, DMARC and more.
  • Network - Ping, Portscan, HTTP and more.


  • Check Monitor Status
  • Modify Monitors
  • Add Monitors
  • Delete Monitors

Free to try

MxToolbox provides a certain number of free lookups to all our customers and access to more lookups, monitor tasks and usage queries for paid customers. Using a test domain, free users may test our APIs using a test account.

You can test the API right now using -

Upgrade for More Transactions!

Other Professional Email Delivery Services

Blacklist Monitoring

MxToolbox has the most comprehensive Blacklist monitoring services in the world. Real-time daily, weekly, and monthly performance statistics across our expertly curated list of over 100 blacklists. Learn More

Delivery Center

Blacklists aren't the only threat to email deliverability. Get insight into who is sending email on your behalf, what is the reputation of your domains and delegated IPs and what your reputation is. Learn More

Delivery Center Plus

MxToolbox Delivery Center Plus is your answer to improving your email deliverability. Adaptive Blacklist monitoring, threat investigation, DMARC, SPF and DKIM compliance and DMARC policy management are all available in this complete email delivery solution.Learn More

Delivery Center for Managed Services Providers

MxToolbox understands that MSPs have different needs when managing email delivery for a large number of domains, so we created an interface that is flexible and scalable.Learn More

  Contact Us to learn more.

Call us at 866-MXTOOLBOX (866-698-6652) or fill out a contact form:

Contact Us