Add Features to Plan

Assigns features to a pricing plan. You can add a single feature or multiple features in a batch request. Features that are already assigned to the plan are silently skipped.

Endpoint

POST /api/v1/projects/{slug}/plans/{planId}/features

Authentication

string

required

Bearer token with your API key. Requires read_write permission.

Path Parameters

string

required

The project’s URL-friendly slug identifier.

number

required

The plan’s unique ID.

Body Parameters

You can use either the single-feature format or the batch format.

Single Feature

number

required

The ID of the feature to assign to the plan.

number

Multiplier for the feature (e.g. 3 means 3x the base limit). Defaults to 1.

Batch (Multiple Features)

array

Array of feature assignments to add in a single request.

Show Feature assignment object

number

required

The ID of the feature to assign.

number

Multiplier for the feature. Defaults to 1.

Response

number

Number of features newly assigned to the plan.

number

Number of features skipped because they were already assigned.

array

Updated list of all plan-feature associations with full feature details.

Example — Single Feature

curl -X POST https://cuprice.io/api/v1/projects/my-saas-app/plans/201/features \
  -H "Authorization: Bearer cpk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "featureId": 103,
    "multiplier": 2
  }'

{
  "added": 1,
  "skipped": 0,
  "features": [
    {
      "id": 301,
      "multiplier": 5,
      "feature": {
        "id": 101,
        "name": "AI Prompts",
        "featureType": "Limits",
        "basePrice": 10
      }
    },
    {
      "id": 302,
      "multiplier": 1,
      "feature": {
        "id": 102,
        "name": "Team Members",
        "featureType": "Standart",
        "basePrice": 5
      }
    },
    {
      "id": 310,
      "multiplier": 2,
      "feature": {
        "id": 103,
        "name": "API Calls",
        "featureType": "Usage Based",
        "basePrice": 15
      }
    }
  ]
}

Example — Batch Add

curl -X POST https://cuprice.io/api/v1/projects/my-saas-app/plans/200/features \
  -H "Authorization: Bearer cpk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "features": [
      { "featureId": 101, "multiplier": 1 },
      { "featureId": 102, "multiplier": 3 },
      { "featureId": 104, "multiplier": 1 }
    ]
  }'

{
  "added": 2,
  "skipped": 1,
  "features": [
    {
      "id": 300,
      "multiplier": 1,
      "feature": {
        "id": 101,
        "name": "AI Prompts",
        "featureType": "Limits",
        "basePrice": 10
      }
    },
    {
      "id": 311,
      "multiplier": 3,
      "feature": {
        "id": 102,
        "name": "Team Members",
        "featureType": "Standart",
        "basePrice": 5
      }
    },
    {
      "id": 312,
      "multiplier": 1,
      "feature": {
        "id": 104,
        "name": "Priority Support",
        "featureType": "Standart",
        "basePrice": 20
      }
    }
  ]
}

In the batch example, feature 101 was already assigned to the plan, so it was skipped (added: 2, skipped: 1).

Errors

Status	Description
`400`	Missing `featureId` or invalid feature IDs
`401`	Invalid or missing API key
`403`	API key does not have `read_write` permission
`404`	Project, plan, or feature not found

Overview

Public Endpoints

API v1 — Projects

API v1 — Features

API v1 — Plans

API v1 — Plan Features

Add Features to Plan

Endpoint

Authentication

Path Parameters

Body Parameters

Single Feature

Batch (Multiple Features)

Response

Example — Single Feature

Example — Batch Add

Errors

​Endpoint

​Authentication

​Path Parameters

​Body Parameters

​Single Feature

​Batch (Multiple Features)

​Response

​Example — Single Feature

​Example — Batch Add

​Errors

Endpoint

Authentication

Path Parameters

Body Parameters

Single Feature

Batch (Multiple Features)

Response

Example — Single Feature

Example — Batch Add

Errors