Top 10 Best Email Verification APIs & Alternatives (2021)

Zero Bounce This API enables the user to eliminate the abuse, complaints, and spam traps with email addresses. It also helps you reduce or do away with inactive and invalid emails that may cost you your reputation.

It can add omitted information such as location, name, and gender as it gives an IP address validation of the key recipient's demography. It is most suitable for firms with a high volume of emails or companies that send complex emails without having to experience issues to do with deliverability.

With this API, you are sure that your data is well protected. It has a free trial and a free version. The pricing is $15 a month.

Email Check allows you to go through the emails and verify them before saving them on the database. This way, the emails in the database are of high quality and are real.

At one point, when sending emails, the user may enter the wrong address. The API can easily spot the mistake and give suggestions for the correct email address. It can also identify role-based emails, which helps you organize your emails without much struggle.

The information is sent to an abstract gender API for processing, where HTTP encryption is used to secure it. This process ensures that your data is safe.

There is a free basic plan for the API. However, the pro package goes for $50, the ultra for $99, and $195 for the Mega package.

The API can reduce the number of unknown emails through its well-configured email engine. It also removes email with invalid syntaxes from the mailing list and has an option where a user can enable or disable command to remove duplicate email addresses.

Its ability to identify domains with valid emails and remove hard bounce and invalid email are excellent. Using the API, one can add the era of a team or company to one account, and they are all allowed to use credits from the same source.

A user or client has an option to download the result they want. The price ranges from $30 to $500 depending on the package that you choose. There is also a free basic plan for trial.

The API is built to improve deliverability since it does not allow undeliverable emails. It also protects your reputation by eliminating risky and unknown email addresses that may be sent to your email and reduces the bounce rate.

When it comes to email listing, there is a need to clean it from time to time, and bouncer email API enables the user to do that in very simple steps. The user experience is excellent, and one can communicate and connect with other people with much ease and without taking much time.

It integrates with other programs, making it possible to validate emails and verify them in real-time.

The API has a free basic plan with 100requests per month. It also has the pro package, which goes for $20, the ultra-package is $150, and the Mega package is $500.

The API has a detailed IP and domain threat database system to ensure that the information or data from the mail server or domain is compromised. The web-based API supports multiple binding languages such as PHP, JavaScript, Python, and shell.

The system in the API operates so that data from the user is not saved and only interacts with the system during the validation process. This way, a client's data is safe and confidential. Email Verification with threat detection is an all in one software that a client can utilize with one line of code to achieve the set goal.

The API has a free basic plan. If one needs extra features, they have to pay, and the pricing varies with every package. The pro package is $19, the ultra-package goes for $49, and the Mega package is $299.

This API is based on Rest architectural style and uses JSON to check and verify email addresses. The API helps users determine whether their inbox is correctly configured to capture all incoming emails through MX records and SMTP.

The API displays numerical scores to show the quality of an email address. With this API, users can detect fraudulent emails, hotpots, spam traps and validate genuine email addresses. It also shows the various roles in a company or organizational emails and blocks disposable email addresses.

The API is free with unlimited requests.

The API helps to detect typos, invalid users and to prevent fake emails and bounce rates. This API detects fraudulent, invalid, and disposable emails. The API detects fake locations that apply VPNs, thereby avoiding scam transactions.

The API works in real-time and is suitable for registrations of accounts and cleaning up a CSV format batch file. It provides overall sender scores to ensure healthy deliverability rates. Such metrics allow users to remove complainers, fake listings, and invalid emails.

This API provides a free package limited to 5000 calls per month. If you wish to have more queries, you may choose a paid plan that suits your business need.

Paid tiers include Pro at $20/month, Ultra at $50/month, and Mega at $200/month.

This web-based API, created by Melissa, helps its users avoid blacklisting from crawler bots by email providers. It aims to reduce the bounce rates and increase the delivery of emails. The API helps users check and verify syntax errors, domain names, misspelled domains, and standardizing casing in email addresses.

It can detect emails associated with non-existing domains, MX server errors, incorrect email formats, spam traps, role-based and valid emails. Global Email Verifiction is designed in the REST framework and delivers its responses in JSON data format.

It is free for 1000 requests per month. For additional requests, one can contact the provider for pricing.

The API helps collect email addresses to ensure that the database is free from any invalid email contact. It removes duplicated emails and automates the workflow when sending bulk emails.

It also allows requests for a single email address or multiple addresses with the drag and drop feature. The API supports uploads in CSV, XLSX, TXT, XLS, or ODS formats.

The API utilizes anti-greying technologies to produce a quality email list with the best deliveries. It produces in-depth verification reports and automatically deletes them after 90 days to enhance data privacy.

The API is free for unlimited use.

Developed by Interzoid, this API returns the validation information of any given Email address. It will show whether an email address is owned by a government, education institution, an organization, or its generic. Generic implies that the email is provided by Gmail, Yahoo, Microsoft, Hotmail, or others.

The API also shows the geographical information of where the email is originating. Additionally, the API identifies mail servers that no longer operate and identify syntax errors or fake email addresses.

The API is free for 25 requests per month. It has three pricing plans where Pro costs $10/month. Ultra costs $100/month, and Mega costs $1000/month.