Kit

Kit (formerly ConvertKit) is an email marketing and creator platform. The Kit API V4 exposes subscribers, broadcasts, sequences, tags, custom fields, forms, purchases, and webhooks. V3 is deprecated.

2 APIs 0 Features

Email MarketingCreator EconomyNewslettersAutomationSubscribers

APIs

Kit API V4

Kit API V4 supports OAuth 2.0 and API key authentication. It provides cursor-based pagination, bulk requests, and async processing across subscribers, broadcasts, sequences, tag...

Kit API V3 (Deprecated)

The legacy ConvertKit V3 API is deprecated and slated for discontinuation; new integrations should target V4.

Collections

Kit API V4

OPEN

Pricing Plans

Kit Plans Pricing

3 plans

PLANS

Rate Limits

Kit Rate Limits

1 limits

RATE LIMITS

FinOps

Kit Finops

FINOPS

Event Specifications

Kit Webhooks

AsyncAPI 2.6 description of the Kit (formerly ConvertKit) webhook surface. Kit delivers webhook notifications via HTTP `POST` requests with a JSON body to a `target_url` registe...

ASYNCAPI

Resources

👥

GitHubOrganization

Sources

opencollection: 1.0.0
info:
  name: Kit API V4
  version: v4
request:
  auth:
    type: apikey
    key: X-Kit-Api-Key
    value: '{{X-Kit-Api-Key}}'
    placement: header
items:
- info:
    name: Account
    type: folder
  items:
  - info:
      name: Get Account
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/account
    docs: Retrieve the current Kit account and associated user information.
  - info:
      name: Get Account Colors
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/account/colors
    docs: List configured color preferences for the account.
  - info:
      name: Update Account Colors
      type: http
    http:
      method: PUT
      url: https://api.kit.com/v4/account/colors
      body:
        type: json
        data: '{}'
    docs: Update the color preferences for the account.
  - info:
      name: Get Email Stats
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/account/email_stats
    docs: Retrieve email statistics for the last 90 days.
  - info:
      name: Get Growth Stats
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/account/growth_stats
      params:
      - name: starting
        value: ''
        type: query
        description: Start of the reporting window (YYYY-MM-DD)
      - name: ending
        value: ''
        type: query
        description: End of the reporting window (YYYY-MM-DD)
    docs: Retrieve subscriber growth metrics for a specified period.
- info:
    name: Subscribers
    type: folder
  items:
  - info:
      name: List Subscribers
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/subscribers
      params:
      - name: after
        value: ''
        type: query
        description: Cursor returned by a previous page response
      - name: before
        value: ''
        type: query
        description: Cursor returned by a previous page response
      - name: per_page
        value: ''
        type: query
        description: Number of records per page
    docs: List subscribers in the Kit account with cursor-based pagination.
  - info:
      name: Create Subscriber
      type: http
    http:
      method: POST
      url: https://api.kit.com/v4/subscribers
      body:
        type: json
        data: '{}'
    docs: Create a subscriber. Behaves as an upsert based on email address.
- info:
    name: Broadcasts
    type: folder
  items:
  - info:
      name: List Broadcasts
      type: http
    http:
      method: GET
      url: https://api.kit.com/v4/broadcasts
    docs: List all broadcasts, including drafts, scheduled, and sent.
  - info:
      name: Create Broadcast
      type: http
    http:
      method: POST
      url: https://api.kit.com/v4/broadcasts
      body:
        type: json
        data: '{}'
    docs: Create a new broadcast as a draft or scheduled send.
bundled: true