# Kit Formerly ConvertKit Integration via LowCodeAPI

**Last Updated**: February 10, 2026

## Overview
Kit is a platform for creating and sending email campaigns.

**Categories:**
- {'id': 'marketing-email', 'name': 'Marketing Email'}

## Base Endpoint
https://api.lowcodeapi.com/convertkit

**Important**: Always include the provider name in the URL path after `api.lowcodeapi.com/`

## Authentication
**Type:** TOKEN

**Official Documentation:** https://developers.kit.com/v4#introduction

## URL Format (Important)

LowCodeAPI supports two URL formats. **Always try the New Format first**, then fall back to Old Format if needed.

### New Format (Priority)
- Path parameters stay in the URL path
- Do NOT include path parameters as query parameters
- Example: `https://api.lowcodeapi.com/{provider}/resource/{id}?api_token=XXX`

### Old Format (Fallback)
- Path parameters become query parameters
- Example: `https://api.lowcodeapi.com/{provider}/resource/id?id={id}&api_token=XXX`

### Decision Flow for AI Agents
1. Always use **New Format** first - keep path parameters in the URL path
2. If you get a 404 or error, try **Old Format** with sanitized path
3. Log which format worked for future requests to this provider

## API Categories

## Common Endpoints

### Show the current account

**Method:** GET
**LowCodeAPI Path:** /v4/account

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/account?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/account?api_token=YOUR_API_TOKEN

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |

**Example Request (New Format):**

```bash
curl -X GET 'https://api.lowcodeapi.com/convertkit/v4/account?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#show-the-current-account

### List broadcasts

**Method:** GET
**LowCodeAPI Path:** /v4/broadcasts

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |
| page | string |  |

**Example Request (New Format):**

```bash
curl -X GET 'https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#list-broadcasts

### Create a broadcast

**Method:** POST
**LowCodeAPI Path:** /v4/broadcasts

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN

**Request Body:**

| Field | Type | Description |
|-------|------|-------------|
| api_secret | string |  |
| content | string |  |
| description | string |  |
| email_address | string |  |
| email_layout_template | string |  |
| public | string |  |
| published_at | string |  |
| send_at | string |  |
| subject | string |  |
| thumbnail_alt | string |  |
| thumbnail_url | string |  |

**Example Request (New Format):**

```bash
curl -X POST 'https://api.lowcodeapi.com/convertkit/v4/broadcasts?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#create-a-broadcast

### Retrieve a specific broadcast

**Method:** GET
**LowCodeAPI Path:** /v4/broadcasts/<broadcast_id>

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/broadcast_id?broadcast_id={broadcast_id}&api_token=YOUR_API_TOKEN

**Path Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| broadcast_id | string |  |

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |

**Example Request (New Format):**

```bash
curl -X GET 'https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#retrieve-a-specific-broadcast

### Get stats

**Method:** GET
**LowCodeAPI Path:** /v4/broadcasts/<broadcast_id>/stats

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>/stats?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/broadcast_id/stats?broadcast_id={broadcast_id}&api_token=YOUR_API_TOKEN

**Path Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| broadcast_id | string |  |

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |

**Example Request (New Format):**

```bash
curl -X GET 'https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>/stats?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#get-stats

### Update a broadcast

**Method:** PUT
**LowCodeAPI Path:** /v4/broadcasts/<broadcast_id>

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/broadcast_id?broadcast_id={broadcast_id}&api_token=YOUR_API_TOKEN

**Path Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| broadcast_id | string |  |

**Request Body:**

| Field | Type | Description |
|-------|------|-------------|
| api_secret | string |  |
| content | string |  |
| description | string |  |
| email_address | string |  |
| email_layout_template | string |  |
| public | string |  |
| published_at | string |  |
| send_at | string |  |
| subject | string |  |
| thumbnail_alt | string |  |
| thumbnail_url | string |  |

**Example Request (New Format):**

```bash
curl -X PUT 'https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#update-a-broadcast

### Destroy a broadcast

**Method:** DELETE
**LowCodeAPI Path:** /v4/broadcasts/<broadcast_id>

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/broadcasts/broadcast_id?broadcast_id={broadcast_id}&api_token=YOUR_API_TOKEN

**Path Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| broadcast_id | string |  |

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |

**Example Request (New Format):**

```bash
curl -X DELETE 'https://api.lowcodeapi.com/convertkit/v4/broadcasts/<broadcast_id>?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#destroy-a-broadcast

### List fields

**Method:** GET
**LowCodeAPI Path:** /v4/custom_fields

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN

**Query Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| api_secret | string |  |

**Example Request (New Format):**

```bash
curl -X GET 'https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#list-fields

### Create field

**Method:** POST
**LowCodeAPI Path:** /v4/custom_fields

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN

**Request Body:**

| Field | Type | Description |
|-------|------|-------------|
| api_secret | string |  |
| label | string |  |

**Example Request (New Format):**

```bash
curl -X POST 'https://api.lowcodeapi.com/convertkit/v4/custom_fields?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#create-field

### Update field

**Method:** PUT
**LowCodeAPI Path:** /v4/custom_fields/<id>

**New Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields/<id>?api_token=YOUR_API_TOKEN

**Old Format URL:**
https://api.lowcodeapi.com/convertkit/v4/custom_fields/id?id={id}&api_token=YOUR_API_TOKEN

**Path Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| id | string |  |

**Request Body:**

| Field | Type | Description |
|-------|------|-------------|
| api_secret | string |  |
| label | string |  |

**Example Request (New Format):**

```bash
curl -X PUT 'https://api.lowcodeapi.com/convertkit/v4/custom_fields/<id>?api_token=YOUR_API_TOKEN'
```

**Official Documentation:** https://developers.kit.com/v4#update-field


## Usage Examples

### Example 1: Send an Email

```bash
# Send an email - no path parameters needed
curl -X POST "https://api.lowcodeapi.com/convertkit/send?api_token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "[email protected]",
    "to": "[email protected]",
    "subject": "Test Email",
    "text": "This is a test email from Kit Formerly ConvertKit"
  }'
```

### Example 2: List Sent Emails

```bash
# Get list of sent emails
curl -X GET "https://api.lowcodeapi.com/convertkit/messages?api_token=YOUR_API_TOKEN"
```

### Example 3: Get Email Details

```bash
# Get specific message by ID
curl -X GET "https://api.lowcodeapi.com/convertkit/messages/{MESSAGE_ID}?api_token=YOUR_API_TOKEN"
```

## Error Handling

LowCodeAPI returns standard HTTP status codes. Common errors:

| Status Code | Description |
|-------------|-------------|
| 200 | Success - Request completed successfully |
| 400 | Bad Request - Invalid parameters or request body |
| 401 | Unauthorized - Invalid or missing API token |
| 403 | Forbidden - Insufficient permissions |
| 404 | Not Found - Endpoint or resource doesn't exist |
| 429 | Too Many Requests - Rate limit exceeded |
| 500 | Server Error - Provider API error |

All error responses include error details:

```json
{
  "data": {
    "error": {
      "message": "Error description",
      "code": "ERROR_CODE"
    }
  }
}
```

## Complete Endpoint Reference

| Endpoint | Method | Category |
|----------|--------|----------|
| Show the current account | GET | Account |
| List broadcasts | GET | Broadcasts |
| Create a broadcast | POST | Broadcasts |
| Retrieve a specific broadcast | GET | Broadcasts |
| Get stats | GET | Broadcasts |
| Update a broadcast | PUT | Broadcasts |
| Destroy a broadcast | DELETE | Broadcasts |
| List fields | GET | Custom Fields |
| Create field | POST | Custom Fields |
| Update field | PUT | Custom Fields |
| Destroy field | DELETE | Custom Fields |
| List forms | GET | Forms |
| Add subscriber to a form | POST | Forms |
| List subscriptions to a form | GET | Forms |
| List purchases | GET | Purchases |
| Retrieve a specific purchase | GET | Purchases |
| Create a purchase | POST | Purchases |
| List sequences | GET | Sequences |
| Add subscriber to a sequence | POST | Sequences |
| List subscriptions to a sequence | GET | Sequences |
| List subscribers | GET | Subscribers |
| View a single subscriber | GET | Subscribers |
| Update subscriber | PUT | Subscribers |
| Unsubscribe subscriber | PUT | Subscribers |
| List tags for a subscriber | GET | Subscribers |
| List tags | GET | Tags |
| Create a tag | POST | Tags |
| Tag a subscriber | POST | Tags |
| Remove tag from a subscriber | DELETE | Tags |
| Remove tag from a subscriber by email | POST | Tags |
| List subscriptions to a tag | GET | Tags |
| List webhooks | GET | Webhooks |
| Create a webhook | POST | Webhooks |
| Get webhook | GET | Webhooks |
| Destroy webhook | DELETE | Webhooks |
| List products | GET | Products |
| Create a product | POST | Products |
| Retrieve a specific product | GET | Products |
| Update a product | PUT | Products |
| Destroy a product | DELETE | Products |
| List events for a subscriber | GET | Events |
| Create an event | POST | Events |
| Update webhook | PUT | Webhooks |
| List sequences for a subscriber | GET | Subscribers |
| List forms for a subscriber | GET | Subscribers |
| List purchases for a subscriber | GET | Subscribers |

## API Definition Endpoints

You can fetch the complete API specification for this provider:

**New Format (OpenAPI spec):**
```bash
curl 'https://backend.lowcodeapi.com/convertkit/openapi'
```

**Old Format (API definition):**
```bash
curl 'https://backend.lowcodeapi.com/convertkit/definition'
```

## Response Format

All responses are wrapped in a `data` key:

```json
{
  "data": {
    // Actual response from provider (object or array)
  }
}
```