Email Verifier API

aid: email-verifier-api
url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/apis.yml
name: Email Verifier API
type: Index
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Freemium · Open access
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/email-verifier-api.png
description: 'Email Verifier API is a real-time email verification service offering a 16-point engine

  that validates deliverability through syntax checking, DNS / MX lookups, real-time SMTP

  handshakes, mailbox existence probing, catch-all and greylisting detection, disposable

  address detection, role-account flagging, spam-trap and complainer detection, gibberish

  and offensive-language scanning, B2B / B2C classification, typo correction, and SMTP

  provider identification. The service is delivered as a single REST endpoint that

  accepts GET or POST requests, returns JSON or XML, and meters usage against a

  credit-pack balance that never expires. The product targets growth teams, ESPs, and

  lead-generation operators that need to eliminate hard bounces and protect sender

  reputation before they send.'
created: '2026-05-06'
modified: '2026-05-19'
specificationVersion: '0.20'
tags:
- Email Verification
- Deliverability
- SMTP Check
- Bounce Prevention
- Lead Validation
- Disposable Detection
- Spam Trap Detection
- Catch-All Detection
- Greylisting
- Role Account Detection
- Typo Suggestion
- B2B Lead Scoring
url-source: https://emailverifierapi.com/
apis:
- aid: email-verifier-api:email-verifier-api-verification-api
  name: Email Verifier API Verification API
  description: Real-time email-address verification operations.
  humanURL: https://emailverifierapi.com/api-docs/
  baseURL: https://emailverifierapi.com/v2/
  tags:
  - Verification
  properties:
  - type: OpenAPI
    url: openapi/email-verifier-api-verification-api-openapi.yml
  - type: Documentation
    url: https://emailverifierapi.com/api-docs/
  - type: Signup
    url: https://emailverifierapi.com/register/
  - type: Pricing
    url: https://emailverifierapi.com/pricing/
  - type: TermsOfService
    url: https://emailverifierapi.com/terms-of-service/
  - type: PrivacyPolicy
    url: https://emailverifierapi.com/privacy-policy/
  - type: Login
    url: https://emailverifierapi.com/login/
  - type: Blog
    url: https://emailverifierapi.com/blog/
  - type: Integrations
    url: https://emailverifierapi.com/integrations/
  - type: FreeTool
    url: https://emailverifierapi.com/free-email-verifier/
  - type: Directory
    url: https://emailverifierapi.com/verify-company-emails/
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/json-schema/email-verifier-api-verification-result-schema.json
  - type: JSONStructure
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/json-structure/email-verifier-api-verification-result-structure.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/json-ld/email-verifier-api-context.jsonld
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/rules/email-verifier-api-rules.yml
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/vocabulary/email-verifier-api-vocabulary.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/plans/email-verifier-api-plans-pricing.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/rate-limits/email-verifier-api-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/email-verifier-api/refs/heads/main/finops/email-verifier-api-finops.yml
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/email-verifier-api/overview
- type: AgenticAccess
  url: agentic-access/email-verifier-api-agentic-access.yml
- type: DomainSecurity
  url: security/email-verifier-api-domain-security.yml
- type: Authentication
  url: authentication/email-verifier-api-authentication.yml
- type: Documentation
  url: https://emailverifierapi.com/api-docs/
- type: Signup
  url: https://emailverifierapi.com/register/
- type: Login
  url: https://emailverifierapi.com/login/
- type: Pricing
  url: https://emailverifierapi.com/pricing/
- type: Blog
  url: https://emailverifierapi.com/blog/
- type: TermsOfService
  url: https://emailverifierapi.com/terms-of-service/
- type: PrivacyPolicy
  url: https://emailverifierapi.com/privacy-policy/
- type: Integrations
  url: https://emailverifierapi.com/integrations/
- type: FreeTool
  url: https://emailverifierapi.com/free-email-verifier/
- type: Directory
  url: https://emailverifierapi.com/verify-company-emails/
- type: Support
  url: mailto:support@emailverifierapi.com
- type: Authentication
  description: API key passed as the `apiKey` query parameter on every request.
- type: Features
  data:
  - name: 16-Point Verification Engine
    description: Composite engine combining syntax, DNS, MX, SMTP handshake, mailbox existence, catch-all, greylisting, disposable,
      role, spam-trap, gibberish, offensive, B2B, typo, complainer, and SMTP-provider checks.
  - name: Real-Time SMTP Verification
    description: Live RCPT TO probe against the destination MX to confirm mailbox existence in real time.
  - name: Disposable Detection
    description: Match against 50,000+ known disposable / burner email providers.
  - name: Role-Account Detection
    description: Flag departmental aliases such as info@, sales@, support@, marketing@.
  - name: Catch-All Detection
    description: Identify domains whose MX accepts all addresses regardless of mailbox existence.
  - name: Greylisting Handling
    description: Distinguish temporary SMTP defenses from outright rejections so they can be retried.
  - name: Typo Suggestion
    description: Detect domain misspellings (gmial.com -> gmail.com) and return a corrected address.
  - name: Spam-Trap and Complainer Detection
    description: Identify honeypots and chronic spam-complainer addresses before they damage sender reputation.
  - name: B2B / B2C Classification
    description: Classify addresses as corporate (B2B) versus consumer (B2C) free-mailbox providers.
  - name: Credit-Based Metering
    description: Pay-as-you-go credit packs that never expire; only Paid (mailbox-level) events consume credits.
  - name: JSON or XML Response
    description: JSON by default; XML available with `xml=true`.
  - name: GET or POST
    description: Both GET and POST supported on the single endpoint for ad-hoc and server-to-server use.
- type: UseCases
  data:
  - name: Signup Validation
    description: Block disposable, role, and invalid addresses at registration to keep user lists clean.
  - name: Pre-Send List Cleaning
    description: Run marketing lists through verification before a send to lower bounce rate and protect IP / domain reputation.
  - name: Lead Quality Scoring
    description: Score inbound leads on B2B vs B2C, role-account, and disposable signals to prioritize sales follow-up.
  - name: ESP Bounce Prevention
    description: Reduce hard bounces on transactional and marketing sends to maintain ISP reputation.
  - name: Typo Recovery at Form Submit
    description: Use `emailSuggested` to prompt users with the corrected address inline at signup.
- type: Integrations
  data:
  - name: Salesforce
    description: Apex HTTP-callout integration for lead validation inside Salesforce.
  - name: Google Sheets
    description: Spreadsheet workflow for ad-hoc list verification.
  - name: Microsoft Excel
    description: Spreadsheet workflow for ad-hoc list verification.
  - name: HubSpot
    description: Marketing-platform integration for list cleansing.
  - name: Pipedrive
    description: CRM integration for inbound lead validation.
- type: SDKs
  data:
  - name: Node.js
  - name: Python
  - name: PHP
  - name: Ruby
  - name: Go
  - name: Java
  - name: C# / .NET
  - name: Rust
  - name: Kotlin
  - name: Swift
  - name: TypeScript
  - name: Elixir
  - name: Dart / Flutter
  - name: Scala
  - name: Clojure
  - name: F#
  - name: VB.NET
  - name: Perl
  - name: Lua
  - name: Julia
  - name: R
  - name: Crystal
  - name: ObjectiveC
  - name: ColdFusion
  - name: ClassicASP
  - name: PowerShell
  - name: VBScript
  - name: Delphi
  - name: cURL / Bash
  - name: OpenResty / NGINX
- type: LlmsText
  url: https://emailverifierapi.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com