Kit website screenshot

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.

GraphQL

Kit (ConvertKit) GraphQL API

Kit (formerly ConvertKit) is a creator email marketing platform. This conceptual GraphQL schema wraps the Kit REST API v4, providing queries for subscribers, tags, sequences, fo...

GRAPHQL

Pricing Plans

Convertkit Plans Pricing

3 plans

PLANS

Rate Limits

Convertkit Rate Limits

2 limits

RATE LIMITS

FinOps

Convertkit Finops

FINOPS

Example Payloads

Add Subscriber To Form By Email Address

6 fields

EXAMPLE

Add Subscriber To Form

6 fields

EXAMPLE

Add Subscriber To Sequence By Email Address

6 fields

EXAMPLE

Add Subscriber To Sequence

5 fields

EXAMPLE

Bulk Add Subscribers To Forms

6 fields

EXAMPLE

Bulk Create Custom Fields

6 fields

EXAMPLE

Bulk Create Subscribers

6 fields

EXAMPLE

Bulk Create Tags

6 fields

EXAMPLE

Bulk Remove Tags From Subscribers

5 fields

EXAMPLE

Bulk Tag Subscribers

6 fields

EXAMPLE

Bulk Update Subscriber Custom Field Values

6 fields

EXAMPLE

Create A Broadcast

6 fields

EXAMPLE

Create A Custom Field

6 fields

EXAMPLE

Create A Purchase

6 fields

EXAMPLE

Create A Sequence Email

6 fields

EXAMPLE

Create A Sequence

6 fields

EXAMPLE

Create A Snippet

5 fields

EXAMPLE

Create A Subscriber

6 fields

EXAMPLE

Create A Tag

6 fields

EXAMPLE

Create A Webhook

6 fields

EXAMPLE

Delete A Broadcast

4 fields

EXAMPLE

Delete A Sequence Email

4 fields

EXAMPLE

Delete A Sequence

4 fields

EXAMPLE

Delete A Webhook

4 fields

EXAMPLE

Delete Custom Field

4 fields

EXAMPLE

Filter Subscribers Based On Engagement

5 fields

EXAMPLE

Get A Broadcast

5 fields

EXAMPLE

Get A Post

5 fields

EXAMPLE

Get A Purchase

5 fields

EXAMPLE

Get A Sequence Email

5 fields

EXAMPLE

Get A Sequence

5 fields

EXAMPLE

Get A Snippet

5 fields

EXAMPLE

Get A Subscriber

5 fields

EXAMPLE

Get Creator Profile

5 fields

EXAMPLE

Get Current Account

5 fields

EXAMPLE

Get Email Stats

5 fields

EXAMPLE

Get Growth Stats

5 fields

EXAMPLE

Get Link Clicks For A Broadcast

5 fields

EXAMPLE

Get Stats For A Broadcast

5 fields

EXAMPLE

Get Stats For A List Of Broadcasts

5 fields

EXAMPLE

List Broadcasts

5 fields

EXAMPLE

List Colors

5 fields

EXAMPLE

List Custom Fields

5 fields

EXAMPLE

List Email Templates

5 fields

EXAMPLE

List Forms

5 fields

EXAMPLE

List Posts

5 fields

EXAMPLE

List Purchases

5 fields

EXAMPLE

List Segments

5 fields

EXAMPLE

List Sequence Emails

5 fields

EXAMPLE

List Sequences

5 fields

EXAMPLE

List Snippets

5 fields

EXAMPLE

List Stats For A Subscriber

5 fields

EXAMPLE

List Subscribers For A Form

5 fields

EXAMPLE

List Subscribers For A Sequence

5 fields

EXAMPLE

List Subscribers For A Tag

5 fields

EXAMPLE

List Subscribers

5 fields

EXAMPLE

List Tags For A Subscriber

5 fields

EXAMPLE

List Tags

5 fields

EXAMPLE

List Webhooks

5 fields

EXAMPLE

Remove Tag From Subscriber By Email Address

4 fields

EXAMPLE

Remove Tag From Subscriber

4 fields

EXAMPLE

Tag A Subscriber By Email Address

6 fields

EXAMPLE

Tag A Subscriber

5 fields

EXAMPLE

Unsubscribe Subscriber

4 fields

EXAMPLE

Update A Broadcast

6 fields

EXAMPLE

Update A Custom Field

6 fields

EXAMPLE

Update A Sequence Email

6 fields

EXAMPLE

Update A Sequence

6 fields

EXAMPLE

Update A Snippet

5 fields

EXAMPLE

Update A Subscriber

6 fields

EXAMPLE

Update Colors

6 fields

EXAMPLE

Update Tag Name

6 fields

EXAMPLE

Resources

🔗
Website
Website
🔗
Documentation
Documentation
👥
GitHubOrg
GitHubOrg
🔗
LinkedIn
LinkedIn
📰
Blog
Blog
💰
Pricing
Pricing
🟢
StatusPage
StatusPage
🔗
X
X
🔗
Plans
Plans
🔗
RateLimits
RateLimits
🔗
FinOps
FinOps

Sources

Raw ↑ 
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
  - url: graphql/convertkit-graphql.md
    type: GraphQL
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