aid: omnisend
name: Omnisend
description: >-
  Omnisend is an email and SMS marketing automation platform purpose-built
  for ecommerce, with deep integrations into Shopify, BigCommerce, WooCommerce,
  and other storefronts. The platform provides automation workflows, campaign
  builders, segmentation, popups and forms, and product recommendations to
  drive customer engagement and revenue. Omnisend's REST API exposes contacts,
  events, products, categories, carts, orders, and campaigns using an
  X-API-KEY header or OAuth 2.0 for app-based integrations.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Email Marketing
  - Marketing Automation
  - Ecommerce
  - SMS Marketing
  - Customer Engagement
  - Segmentation
url: >-
  https://raw.githubusercontent.com/api-evangelist/omnisend/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: omnisend:rest-api
    name: Omnisend REST API
    description: >-
      REST API for managing contacts, events, products, categories, carts,
      orders, and campaigns for ecommerce marketing automation. Authentication
      uses an X-API-KEY header or OAuth 2.0 authorization code flow.
    humanURL: https://api-docs.omnisend.com/reference/overview
    baseURL: https://api.omnisend.com/v5
    tags:
      - Email Marketing
      - Contacts
      - Campaigns
      - Ecommerce
      - Events
    properties:
      - type: Documentation
        url: https://api-docs.omnisend.com/
      - type: API Reference
        url: https://api-docs.omnisend.com/reference/overview
      - type: Authentication
        url: https://api-docs.omnisend.com/reference/authentication
      - type: OAuth
        url: https://api-docs.omnisend.com/reference/oauth
      - type: Postman
        url: https://www.postman.com/omnisend-api/workspace/omnisend/overview
common:
  - type: Website
    url: https://www.omnisend.com
  - type: Documentation
    url: https://api-docs.omnisend.com
  - type: Pricing
    url: https://www.omnisend.com/pricing
  - type: Sign Up
    url: https://app.omnisend.com/signup
  - type: Support
    url: https://support.omnisend.com
  - type: Help Center
    url: https://support.omnisend.com/en/articles/1061798-omnisend-api-documentation
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com