NeverBounce

NeverBounce is an email verification and list cleaning service (now part of ZeroBounce) that validates individual email addresses in real time and cleans bulk lists by checking syntax, mailbox existence, role addresses, disposable addresses, catch-all domains, and deliverability to reduce bounce rates for marketing, sales, and transactional senders. The NeverBounce v4 REST API at https://api.neverbounce.com/v4/ provides endpoints for single email checks, list jobs (create, parse, start, status, results, download), account info, and webhooks, with JSON responses over HTTPS. Authentication uses a per-integration API key (format `secret_xxxx...`) passed as the `key` parameter or in the Authorization header.

1 APIs 0 Features

Email VerificationEmail ValidationEmail HygieneDeliverabilityMarketingList CleaningZeroBounce

GitHub Organization

Sources

aid: neverbounce
name: NeverBounce
description: >-
  NeverBounce is an email verification and list cleaning service (now part of
  ZeroBounce) that validates individual email addresses in real time and
  cleans bulk lists by checking syntax, mailbox existence, role addresses,
  disposable addresses, catch-all domains, and deliverability to reduce bounce
  rates for marketing, sales, and transactional senders. The NeverBounce v4
  REST API at https://api.neverbounce.com/v4/ provides endpoints for single
  email checks, list jobs (create, parse, start, status, results, download),
  account info, and webhooks, with JSON responses over HTTPS. Authentication
  uses a per-integration API key (format `secret_xxxx...`) passed as the
  `key` parameter or in the Authorization header.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Email Verification
  - Email Validation
  - Email Hygiene
  - Deliverability
  - Marketing
  - List Cleaning
  - ZeroBounce
url: >-
  https://raw.githubusercontent.com/api-evangelist/neverbounce/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: neverbounce:v4-api
    name: NeverBounce API v4
    description: >-
      RESTful JSON API for email verification. Provides single email
      verification (`/single/check`), bulk job verification (`/jobs/create`,
      `/jobs/parse`, `/jobs/start`, `/jobs/status`, `/jobs/results`,
      `/jobs/download`), account info, and POE (Proof of Engagement)
      endpoints. Authentication uses a per-integration API key
      (`secret_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`) passed via the `key`
      query/body parameter or `Authorization: Bearer` header.
    humanURL: https://developers.neverbounce.com/docs/api-getting-started
    baseURL: https://api.neverbounce.com/v4
    tags:
      - Email Verification
      - REST
      - JSON
      - Deliverability
    properties:
      - type: Documentation
        url: https://developers.neverbounce.com/docs/api-getting-started
      - type: Verifying an Email
        url: https://developers.neverbounce.com/docs/verifying-an-email
      - type: Verifying a List
        url: https://developers.neverbounce.com/docs/verifying-a-list
      - type: GitHub SDKs
        url: https://github.com/NeverBounce

common:
  - type: Website
    url: https://www.neverbounce.com
  - type: Documentation
    url: https://developers.neverbounce.com/
  - type: GitHub Organization
    url: https://github.com/NeverBounce
  - type: Pricing
    url: https://www.neverbounce.com/pricing
  - type: Sign Up
    url: https://app.neverbounce.com/register

maintainers:
  - FN: Kin Lane
    email: [email protected]

NeverBounce

APIs

NeverBounce API v4

Resources

Sources