EmailLabs Verification API

API ID 13031

Validate and score email addresses in real time — syntax, domain/MX, disposable, role-based and typo detection. Every check except SMTP, in a single fast call.

100% uptime 309 ms avg response

API Documentation

Endpoints

Request

Verifies a single email address using all non-SMTP checks: syntax (RFC 5322), length limits, domain and MX records via DNS, disposable-provider detection, free-webmail and role-account flags, plus typo suggestions. Returns a 0–100 confidence score and a valid / risky / invalid verdict with a per-check breakdown and human-readable reasons.

Endpoint ID: 26168
GET https://api-sneakers-database.zylalabs.com/api/13031/emaillabs+verification+api/26168/verify+email
INPUT PARAMETERS

Verify Email — Endpoint Features

Object Description
email Required Email for validation

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

email
API EXAMPLE RESPONSE
JSON
{"email":"[email protected]","normalizedEmail":"[email protected]","status":"valid","score":100,"isValid":true,"checks":{"syntax":{"valid":true,"localPart":"john.doe","domain":"gmail.com"},"length":{"valid":true,"localPartLength":8,"domainLength":9,"totalLength":18},"domain":{"resolvable":true,"hasMx":true,"mxRecords":["gmail-smtp-in.l.google.com","alt1.gmail-smtp-in.l.google.com","alt2.gmail-smtp-in.l.google.com","alt3.gmail-smtp-in.l.google.com","alt4.gmail-smtp-in.l.google.com"],"hasAddressRecord":false,"nullMx":false},"disposable":{"isDisposable":false},"free":{"isFreeProvider":true},"role":{"isRoleAccount":false},"typo":{"hasSuggestion":false}},"reasons":["Domain has MX records","Free webmail provider"]}
Verify Email — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13031/emaillabs+verification+api/26168/[email protected]' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the EmailLabs Verification API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

Simple Transparent Pricing

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

(Save 2 months with annual billing 🎉)

🚀 Enterprise Plan
Custom Volume

  • Custom Rate Limit
  • Team & Access Management
  • SLA-backed Uptime
  • Specialized Customer Support
  • Real-Time API Monitoring
  • Enterprise Security & Compliance
Minimum annual contract: USD 10,000

Trusted by leading companies

Overview

EmailLabs Email Verification API

EmailLabs verifies and scores any email address in milliseconds, running every meaningful deliverability check short of an SMTP probe — so you catch bad, fake, and risky addresses before they ever hit your database.

What it checks

  • Syntax — full RFC 5322 validation of the local and domain parts.
  • Length — enforces RFC 5321 limits (local ≤ 64, domain ≤ 255, total ≤ 254).
  • Normalization — trims, lowercases, and converts international (IDN) domains to punycode.
  • Domain & MX (DNS) — confirms the domain exists and can receive mail; detects NXDOMAIN and null-MX domains.
  • Disposable detection — flags throwaway / temporary providers (Mailinator, 10MinuteMail, and many more).
  • Free provider detection — labels free webmail addresses (Gmail, Yahoo, Outlook, …).
  • Role-based detection — flags non-personal mailboxes such as info@, support@, and noreply@.
  • Typo suggestions — "did you mean" corrections for misspelled domains (e.g. gmial.com → gmail.com).

What you get back

A single JSON response with a per-check breakdown, a 0–100 confidence score, and a clear verdict: validrisky, or invalid — plus human-readable reasons for the result.

Why use it

  • Cut bounce rates and protect sender reputation.
  • Block fake and disposable sign-ups at registration.
  • Improve form UX with instant typo suggestions.
  • Clean and score existing email lists in bulk.

Highlights

  • Real-time, low-latency responses.
  • Single and batch verification.
  • Simple JSON in, structured JSON out.
  • Privacy-friendly: no SMTP connection to the recipient's mail server.

EmailLabs Verification API FAQs

The Verify Email endpoint returns a JSON response containing the validation status of the email address, a confidence score, and a detailed breakdown of various checks performed, such as syntax, domain validity, disposable status, and typo suggestions.

Key fields in the response include "email" (the original email), "normalizedEmail" (formatted email), "status" (valid, risky, or invalid), "score" (0-100 confidence score), and "checks" (detailed results of each validation check).

The response data is structured in a JSON format with a top-level object containing the email details, validation status, confidence score, and a nested "checks" object that provides results for each specific validation check performed.

The endpoint provides information on email syntax validity, length limits, domain and MX record checks, disposable email detection, identification of free webmail providers, role-based account flags, and typo suggestions for misspelled domains.

Data accuracy is maintained through rigorous validation checks against established standards (RFC 5321 and RFC 5322), real-time DNS lookups for domain verification, and continuous updates to the database of disposable and free email providers.

Typical use cases include validating email addresses during user registration to reduce bounce rates, cleaning existing email lists, enhancing user experience with typo suggestions, and preventing fake sign-ups by identifying disposable addresses.

Users can customize their requests by providing a single email address to the Verify Email endpoint. The API automatically performs all relevant checks without requiring additional parameters, streamlining the validation process.

Standard data patterns include a clear "status" indicating the email's validity, a "score" reflecting confidence in the result, and detailed "checks" that provide insights into specific validation aspects, such as syntax and domain checks.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.

The free trial lasts for 7 days and allows you to make up to 50 API requests.

No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.

Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

Prices are listed in USD (United States Dollar), EUR (Euro), CAD (Canadian Dollar), AUD (Australian Dollar), and GBP (British Pound). We accept all major debit and credit cards. Our payment system uses the latest security technology and is powered by Stripe, one of the world's most reliable payment companies. If you have any trouble paying by card, just contact us at [email protected]

Additionally, if you already have an active subscription in any of these currencies (USD, EUR, CAD, AUD, GBP), that currency will remain for subsequent subscriptions. You can change the currency at any time as long as you don't have any active subscriptions.
The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.
Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]
Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.
API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.
To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.
To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

You can monitor your API usage through the response headers included with every request:

x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.

The 'X-Zyla-RateLimit-Reset' header shows the number of seconds until your rate limit resets. This tells you when your request count will start fresh. For example, if it displays 3,600, it means 3,600 seconds are left until the limit resets.

Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.

Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.
When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.
You can contact us through our chat channel to receive immediate assistance. We are always online from 8 am to 5 pm (EST). If you reach us after that time, we will get back to you as soon as possible. Additionally, you can contact us via email at [email protected]

Please have a look at our Refund Policy: https://zylalabs.com/terms#refund


Related APIs