# Set seller billing plan

Building with an AI agent? Start at https://docs.payme.io/agents.md

- Sandbox: your partner domain on the Keep sandbox: `POST https://<partner_domain>.keep.co.il/api/public/plans/activate`
- Production: your partner domain: `POST https://<partner_domain>.keep.co.il/api/public/plans/activate`

## Credentials

- Header `Authorization: Bearer <token>`

Assign a billing plan to a seller with payer-based activation flow.

**Payer modes:**
- `partner` — No credit card is required. The plan is normally activated at once. It is scheduled instead of activated when the seller is on a free plan within the trial or the sign-up month, and when a no-cost plan is chosen on days 20–31 of a month; the response is still `activated`, and the plan takes effect at the scheduled date.
- `seller` — If the seller already has a credit card on file, the plan is activated immediately. If not, a credit card URL is returned and the plan activates once the seller completes payment.

**Pending response** (`payer` is `seller` and no card is on file):

```json
{
  "payload": {
    "status": "pending",
    "message": "Please complete payment to activate plan",
    "creditCardUrl": "<payment_url>"
  }
}
```

## Parameters

This endpoint takes no path, query or header parameters.

## Request body

Content type: `application/json`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `sellerId` | string | yes | Seller UUID |
| `planId` | string | yes | Plan UUID, from Get available plans |
| `payer` | string | yes | Who pays for the plan. 'partner' = immediate activation, 'seller' = may require credit card. Allowed values: `partner`, `seller`. |

### Request example

```json
{
  "sellerId": "a6a9700f-8571-4f9b-bfae-ba943fb96982",
  "planId": "3d653770-6376-40a5-b98e-17c598f1d7d8",
  "payer": "partner"
}
```

## Code samples

### curl

```bash
curl -X POST 'https://<partner_domain>.keep.co.il/api/public/plans/activate' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <YOUR_TOKEN>' \
  --data-raw '{
  "sellerId": "a6a9700f-8571-4f9b-bfae-ba943fb96982",
  "planId": "3d653770-6376-40a5-b98e-17c598f1d7d8",
  "payer": "partner"
}'
```

### Node.js

```javascript
const response = await fetch("https://<partner_domain>.keep.co.il/api/public/plans/activate", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Bearer <YOUR_TOKEN>",
  },
  body: JSON.stringify({
    "sellerId": "a6a9700f-8571-4f9b-bfae-ba943fb96982",
    "planId": "3d653770-6376-40a5-b98e-17c598f1d7d8",
    "payer": "partner"
  }),
});

console.log(await response.text());
```

### Python

```python
import requests

response = requests.post(
    "https://<partner_domain>.keep.co.il/api/public/plans/activate",
    headers={
        "Authorization": "Bearer <YOUR_TOKEN>",
    },
    json={
        "sellerId": "a6a9700f-8571-4f9b-bfae-ba943fb96982",
        "planId": "3d653770-6376-40a5-b98e-17c598f1d7d8",
        "payer": "partner",
    },
)

print(response.text)
```

### PHP

```php
<?php

$body = <<<'BODY'
{
  "sellerId": "a6a9700f-8571-4f9b-bfae-ba943fb96982",
  "planId": "3d653770-6376-40a5-b98e-17c598f1d7d8",
  "payer": "partner"
}
BODY;

$ch = curl_init('https://<partner_domain>.keep.co.il/api/public/plans/activate');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'Authorization: Bearer <YOUR_TOKEN>',
    ],
    CURLOPT_POSTFIELDS => $body,
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
```

## Responses

### 201 — Plan set successfully (success)

| Field | Type | Description |
| --- | --- | --- |
| `payload` | object |  |
| `payload.status` | string | 'activated' when plan is active immediately, 'pending' when seller must complete payment first. |
| `payload.message` | string | Human-readable message (present when status is 'pending') |
| `payload.creditCardUrl` | string | URL for seller to submit credit card details (present when status is 'pending') |

```json
{
  "payload": {
    "status": "activated"
  }
}
```

### 400 — Bad Request. Returned for validation errors, and with the message `Bad seller identifier` when the seller is unknown. (error)

| Field | Type | Description |
| --- | --- | --- |
| `statusCode` | integer | HTTP status code |
| `message` | string | Error message(s) |
| `error` | string | Error type |

```json
{
  "statusCode": 400,
  "message": [
    "Validation failed"
  ],
  "error": "Bad Request"
}
```

### 401 — Unauthorized (error)

| Field | Type | Description |
| --- | --- | --- |
| `statusCode` | integer |  |
| `message` | string |  |

```json
{
  "statusCode": 401,
  "message": "Unauthorized"
}
```

### 403 — The seller does not belong to your partner account (error)

### 422 — Unprocessable Entity (error)

| Field | Type | Description |
| --- | --- | --- |
| `statusCode` | integer | HTTP status code |
| `message` | string | Error message(s) |
| `error` | string | Error type |

```json
{
  "statusCode": 422,
  "message": "Bad seller configuration. Please contact support!",
  "error": "Unprocessable Entity"
}
```