Your Privacy & Accessibility-Friendly

Anti-Spam Solution.

Cutting edge spam protection utilizing machine learning and a cocktail of unique measurements to safeguard your customers.

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OOPSpam helps keep millions of businesses free of spam every day


protected websites




caught spam

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Remove noise and focus on
what matters

High accuracy

We've caught over 500M spam. You're protected from both human and bot spammers.

Spam Score

Don't block legitimate users. Adjust your spam filtering with the spam score.

Detailed report

Know why someone is blocked so that you can customize and protect your users better.

Privacy by design

We don't see or store your data. Your business is safe with us.

Spam protection isn’t easy. We just make it feel that way.

You send a simple API request. We do powerful analyses to guarantee a spam-free experience for you.

Spam score

Machine Learning model

Multiple blocked email & IP lists

Advanced content analyses

Spam word pattern detection

Auto-improvement model

Language Restrictions

Country Restrictions

... and many more custom rules.

OOPSpam Dashboard - Test with your data

Save time before integrating OOPSpam API.
Paste and see the result.

Use our dashboard to test with your data before going through API integration. Simply paste your data and see how it works for you.

Endless Use Cases

Contact Form

Allow visitors to contact you without solving puzzles. We understand blocking spam is important, just as much as allowing legitimate leads. That is why we make sure you don't miss any opportunities through your contact forms.

Comments & Reviews

OOPSpam works great with review and comment systems, especially on e-commerce platforms. We handle spam in one of the most popular review widgets in the market.

Private & Live Chats

OOPSpam prevents spammers from sending ads to your customers. Use OOPSpam in a private system without worrying about privacy. We don't store or track your data.

Email marketing

No matter you are sending emails to your customers or getting emails from different channels. Use OOPSpam to scan email content and IP for spam-freeness.

What People Are Saying

Peter Bethke |

After looking at several APIs for spam detection, we decided on OOPSpam and have not regretted that decision. The API is well documented, fast, and the developer has been very responsive and proactive. Highly recommended.

Rebecca Shiles | The Kelly Companies

It is powerful but also endlessly customizable and the few questions we had were answered promptly and the support staff went above and beyond to help us with the integration.

Vu Nguyen |

OOPSpam helped us (and our clients) to flag many spam messages correctly. The support is very responsive to our requests and feedback. We strongly recommend OOPSpam for anyone who values their time and resources.

Built for developers. Trusted by businesses.

99.999% API Success Rate

All errors are reported by an error tracking system and fixed promptly.


No data stored, no user exploited. OOPSpam is GDPR compliant.

Unlimited Websites

Every plan comes with unlimited integration. Use on as many websites as you want.

24/7 support

Get help whenever you need it from our always-on team.

Simple, transparent pricing.

Start with 40 free spam checks — no credit card required

Monthly Yearly / two months FREE
$40.83/month, billed yearly
Advanced Spam Protection
Misdetection Reporting API

Processed within a week

100 000 API Calls/m
15 Domain Reputation Watch
Unlimited sites
No logs policy
E-mail Support
$65.8/month, billed yearly
Advanced Spam Protection
Misdetection Reporting API

Processed in 72 hours

300 000 API Calls/m
50 Domain Reputation Watch
Unlimited sites
No logs policy
Priority E-mail Support
$332.5/month, billed yearly
Advanced Spam Protection
Misdetection Reporting API

Processed in 24 hours

1 000 000 API Calls/m
300 Domain Reputation Watch
Unlimited sites
No logs policy
Priority E-mail & Call Support
Everything in Business
More API calls
Dedicated account manager

Just need less than 15K API calls? Contact us for our Starter plan.

Frequently Asked Questions (FAQ)

How does OOPSpam API work?

OOPSpam API uses many different measurements to determine what seems to be spam and what does not. This includes multiple outputs from Machine Learning algorithms, up-to-date blocklisted IPs lists, spam words, and many more custom rules. The user (you!) directs their content to run through OOPSpam API and will get a Spam Score. This score gives you control for how conservative or liberal you would like to mark as spam.

Why do you provide a Spam Score instead of giving a simple ‘yes’ or ‘no’?

Because in the real world, things are not black and white (or in this case, green and red)! What might be the best solution for one client could look very different than the next. We’ll give an example. Say you are a travel website offering high end tour packages. You unfortunately get a lot of spam in your contact form, but it’s also the biggest conversion tool you have. In this case, since missing a ‘real’ message would mean missing out on large amounts of money, you would want to be more liberal on what content you accept. On the other hand, if you have a travel blog where comments are nice to get but more inconsequential, you might want to be more conservative on what comments you accept so you don’t need to spend lots of time combing through potential real comments. We decided to provide this spam score as a way to give developers and website managers more control and ability to create something more custom to ‘WOW’ their clients .

What does the Spam Score look like?

The API will return Spam Score which will be a number between 0 to 6. Besides Spam Score, It will also contain other details. It is up to you to decide your threshold based on Spam Score. Usually, a score 3 or above can be considered as spam.

Is a request to the OOPSpam API logged?

Not by default, but you can enable it. For API users, add the "logIt" parameter to a request body. Learn more about this here.

Is OOPSpam GDPR compliant?

OOPSpam itself as an API is GDPR compliant. It does not store any data, so there is no data to identify or track a user. Read more in the GDPR Notice and Data Processing Agreement.

Do you have a WordPress plugin?

Yes! Here you go: OOPSpam WordPress plugin.

Can I use one key for multiple websites?

Yes. Once you have a key, you can use it in our WordPress plugin as well as on any other platforms.

How to get a key?

Either via OOPSpam Dashboard or RapidAPI marketplace. Check our documentation to learn how to access your key in both through OOPSpam Dashboard and RapidAPI.

Join a new age of spam prevention

Contact us

Need to know more? Don't hesitate to contact us.

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