Kit

Kit (formerly ConvertKit) is a creator email marketing platform with a REST API for managing subscribers, tags, sequences, forms, broadcasts, and automation rules. The API supports both API key and OAuth 2.0 authentication, with v4 as the current version featuring cursor-based pagination, bulk operations, and async processing.

1 APIs 0 Features

Email MarketingCreator EconomySubscribersAutomationNewslettersSequencesFormsBroadcasts

APIs

Kit API

REST API for the Kit (formerly ConvertKit) creator email marketing platform, providing programmatic access to subscribers, tags, sequences, forms, broadcasts, and automation rules.

Resources

Sources

aid: convertkit
name: Kit
description: Kit (formerly ConvertKit) is a creator email marketing platform with a REST API for managing subscribers, tags, sequences, forms, broadcasts, and automation rules. The API supports both API key and OAuth 2.0 authentication, with v4 as the current version featuring cursor-based pagination, bulk operations, and async processing.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/convertkit/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
  - Email Marketing
  - Creator Economy
  - Subscribers
  - Automation
  - Newsletters
  - Sequences
  - Forms
  - Broadcasts
apis:
  - aid: convertkit:kit-api
    name: Kit API
    description: REST API for the Kit (formerly ConvertKit) creator email marketing platform, providing programmatic access to subscribers, tags, sequences, forms, broadcasts, and automation rules.
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    humanURL: https://developers.kit.com
    baseURL: https://api.kit.com/v4
    tags:
      - Email Marketing
      - Subscribers
      - Tags
      - Sequences
      - Forms
      - Broadcasts
      - Automation
    properties:
      - type: Documentation
        url: https://developers.kit.com/docs
      - type: OpenAPI
        url: https://developers.kit.com/api-reference/v4.json
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/convertkit/refs/heads/main/openapi/openapi.json
      - type: Authentication
        url: https://developers.kit.com/api-reference/authentication
      - type: Changelog
        url: https://developers.kit.com/changelog
common:
  - type: Website
    url: https://kit.com
  - type: Documentation
    url: https://developers.kit.com
  - type: GitHubOrg
    url: https://github.com/convertkit
  - type: LinkedIn
    url: https://www.linkedin.com/company/kit.com
  - type: Blog
    url: https://kit.com/resources
  - type: Pricing
    url: https://kit.com/pricing
  - type: StatusPage
    url: https://status.kit.com
  - type: X
    url: https://x.com/kit
  - type: Plans
    url: plans/convertkit-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/convertkit-rate-limits.yml
  - type: FinOps
    url: finops/convertkit-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com