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POST
/
api
/
v1
/
invoice
/
Invoice Create Api
curl --request POST \
  --url https://api.justpaid.io/api/v1/invoice/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customer_uuid": "123e4567-e89b-12d3-a456-426614174000",
  "line_items": [
    {
      "name": "Product A",
      "unit_price": 100,
      "description": "Detailed description of the product or service",
      "quantity": 2,
      "flat_fee": 10,
      "discount_amount": 5,
      "discount_percent": 10,
      "tax_rate": 10,
      "tax_name": "Sales Tax",
      "service_start_date": "2024-03-01",
      "service_end_date": "2024-03-31",
      "display_order": 2
    }
  ],
  "invoice_number": "INV-2024-001",
  "invoice_date": "2024-03-21",
  "due_date": "2024-04-21",
  "currency": "USD",
  "description": "Monthly services for March 2024",
  "service_start_date": "2024-03-01",
  "service_end_date": "2024-03-31",
  "notes": "<string>",
  "recipients": [
    "<string>"
  ],
  "custom_fields": [
    {}
  ],
  "invoice_status": "draft"
}
'
import requests

url = "https://api.justpaid.io/api/v1/invoice/"

payload = {
    "customer_uuid": "123e4567-e89b-12d3-a456-426614174000",
    "line_items": [
        {
            "name": "Product A",
            "unit_price": 100,
            "description": "Detailed description of the product or service",
            "quantity": 2,
            "flat_fee": 10,
            "discount_amount": 5,
            "discount_percent": 10,
            "tax_rate": 10,
            "tax_name": "Sales Tax",
            "service_start_date": "2024-03-01",
            "service_end_date": "2024-03-31",
            "display_order": 2
        }
    ],
    "invoice_number": "INV-2024-001",
    "invoice_date": "2024-03-21",
    "due_date": "2024-04-21",
    "currency": "USD",
    "description": "Monthly services for March 2024",
    "service_start_date": "2024-03-01",
    "service_end_date": "2024-03-31",
    "notes": "<string>",
    "recipients": ["<string>"],
    "custom_fields": [{}],
    "invoice_status": "draft"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customer_uuid: '123e4567-e89b-12d3-a456-426614174000',
    line_items: [
      {
        name: 'Product A',
        unit_price: 100,
        description: 'Detailed description of the product or service',
        quantity: 2,
        flat_fee: 10,
        discount_amount: 5,
        discount_percent: 10,
        tax_rate: 10,
        tax_name: 'Sales Tax',
        service_start_date: '2024-03-01',
        service_end_date: '2024-03-31',
        display_order: 2
      }
    ],
    invoice_number: 'INV-2024-001',
    invoice_date: '2024-03-21',
    due_date: '2024-04-21',
    currency: 'USD',
    description: 'Monthly services for March 2024',
    service_start_date: '2024-03-01',
    service_end_date: '2024-03-31',
    notes: '<string>',
    recipients: ['<string>'],
    custom_fields: [{}],
    invoice_status: 'draft'
  })
};

fetch('https://api.justpaid.io/api/v1/invoice/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.justpaid.io/api/v1/invoice/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'customer_uuid' => '123e4567-e89b-12d3-a456-426614174000',
    'line_items' => [
        [
                'name' => 'Product A',
                'unit_price' => 100,
                'description' => 'Detailed description of the product or service',
                'quantity' => 2,
                'flat_fee' => 10,
                'discount_amount' => 5,
                'discount_percent' => 10,
                'tax_rate' => 10,
                'tax_name' => 'Sales Tax',
                'service_start_date' => '2024-03-01',
                'service_end_date' => '2024-03-31',
                'display_order' => 2
        ]
    ],
    'invoice_number' => 'INV-2024-001',
    'invoice_date' => '2024-03-21',
    'due_date' => '2024-04-21',
    'currency' => 'USD',
    'description' => 'Monthly services for March 2024',
    'service_start_date' => '2024-03-01',
    'service_end_date' => '2024-03-31',
    'notes' => '<string>',
    'recipients' => [
        '<string>'
    ],
    'custom_fields' => [
        [
                
        ]
    ],
    'invoice_status' => 'draft'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.justpaid.io/api/v1/invoice/"

	payload := strings.NewReader("{\n  \"customer_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"line_items\": [\n    {\n      \"name\": \"Product A\",\n      \"unit_price\": 100,\n      \"description\": \"Detailed description of the product or service\",\n      \"quantity\": 2,\n      \"flat_fee\": 10,\n      \"discount_amount\": 5,\n      \"discount_percent\": 10,\n      \"tax_rate\": 10,\n      \"tax_name\": \"Sales Tax\",\n      \"service_start_date\": \"2024-03-01\",\n      \"service_end_date\": \"2024-03-31\",\n      \"display_order\": 2\n    }\n  ],\n  \"invoice_number\": \"INV-2024-001\",\n  \"invoice_date\": \"2024-03-21\",\n  \"due_date\": \"2024-04-21\",\n  \"currency\": \"USD\",\n  \"description\": \"Monthly services for March 2024\",\n  \"service_start_date\": \"2024-03-01\",\n  \"service_end_date\": \"2024-03-31\",\n  \"notes\": \"<string>\",\n  \"recipients\": [\n    \"<string>\"\n  ],\n  \"custom_fields\": [\n    {}\n  ],\n  \"invoice_status\": \"draft\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.justpaid.io/api/v1/invoice/")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customer_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"line_items\": [\n    {\n      \"name\": \"Product A\",\n      \"unit_price\": 100,\n      \"description\": \"Detailed description of the product or service\",\n      \"quantity\": 2,\n      \"flat_fee\": 10,\n      \"discount_amount\": 5,\n      \"discount_percent\": 10,\n      \"tax_rate\": 10,\n      \"tax_name\": \"Sales Tax\",\n      \"service_start_date\": \"2024-03-01\",\n      \"service_end_date\": \"2024-03-31\",\n      \"display_order\": 2\n    }\n  ],\n  \"invoice_number\": \"INV-2024-001\",\n  \"invoice_date\": \"2024-03-21\",\n  \"due_date\": \"2024-04-21\",\n  \"currency\": \"USD\",\n  \"description\": \"Monthly services for March 2024\",\n  \"service_start_date\": \"2024-03-01\",\n  \"service_end_date\": \"2024-03-31\",\n  \"notes\": \"<string>\",\n  \"recipients\": [\n    \"<string>\"\n  ],\n  \"custom_fields\": [\n    {}\n  ],\n  \"invoice_status\": \"draft\"\n}")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://api.justpaid.io/api/v1/invoice/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customer_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"line_items\": [\n    {\n      \"name\": \"Product A\",\n      \"unit_price\": 100,\n      \"description\": \"Detailed description of the product or service\",\n      \"quantity\": 2,\n      \"flat_fee\": 10,\n      \"discount_amount\": 5,\n      \"discount_percent\": 10,\n      \"tax_rate\": 10,\n      \"tax_name\": \"Sales Tax\",\n      \"service_start_date\": \"2024-03-01\",\n      \"service_end_date\": \"2024-03-31\",\n      \"display_order\": 2\n    }\n  ],\n  \"invoice_number\": \"INV-2024-001\",\n  \"invoice_date\": \"2024-03-21\",\n  \"due_date\": \"2024-04-21\",\n  \"currency\": \"USD\",\n  \"description\": \"Monthly services for March 2024\",\n  \"service_start_date\": \"2024-03-01\",\n  \"service_end_date\": \"2024-03-31\",\n  \"notes\": \"<string>\",\n  \"recipients\": [\n    \"<string>\"\n  ],\n  \"custom_fields\": [\n    {}\n  ],\n  \"invoice_status\": \"draft\"\n}"

response = http.request(request)
puts response.read_body
{
  "uuid": "123e4567-e89b-12d3-a456-426614174000",
  "invoice_status": "draft",
  "amount": 1000,
  "currency": "USD",
  "invoice_number": "INV-2024-001",
  "invoice_date": "2024-03-21",
  "due_date": "2024-04-21",
  "service_start_date": "2024-03-01",
  "service_end_date": "2024-03-31",
  "description": "Monthly services for March 2024",
  "created_at": "2024-03-21T10:00:00Z",
  "is_recurring": false,
  "from_external_source": false,
  "external_source": "stripe",
  "external_source_id": "inv_123456",
  "payment_link": "https://app.justpaid.ai/portal/inv/123",
  "line_items": [
    {
      "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "unit_price": 123,
      "quantity": 1,
      "amount": 123,
      "currency": "USD",
      "description": "<string>",
      "flat_fee": 123,
      "tax_rate": 0,
      "tax_amount": 0,
      "tax_name": "<string>",
      "discount_amount": 123,
      "discount_percent": 123,
      "service_start_date": "2023-12-25",
      "service_end_date": "2023-12-25",
      "display_order": 123
    }
  ],
  "file_url": "https://api.justpaid.ai/invoices/123.pdf",
  "customer": {
    "external_id": "CUST-001",
    "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "<string>",
    "contact_name": "<string>",
    "email": "<string>",
    "additional_emails": [
      "<unknown>"
    ],
    "billing_emails": [
      "<unknown>"
    ],
    "phone_number": "<string>",
    "currency": "USD",
    "tax_id": "<string>"
  }
}
{}
{}

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

Input schema for creating an invoice.

​
customer_uuid
string
required

UUID of the customer (required, must exist)

Example:

"123e4567-e89b-12d3-a456-426614174000"

​
line_items
LineItemCreateIn · object[]
required

Invoice line items (at least one required)

Minimum array length: 1
​
invoice_number
string | null

Unique invoice number (auto-generated if not provided)

Maximum string length: 100
Example:

"INV-2024-001"

​
invoice_date
string<date> | null

Invoice date (defaults to today)

Example:

"2024-03-21"

​
due_date
string<date> | null

Payment due date

Example:

"2024-04-21"

​
currency
string
default:USD

ISO 4217 currency code

Example:

"USD"

​
description
string | null

Invoice description

Example:

"Monthly services for March 2024"

​
service_start_date
string<date> | null

Service period start date

Example:

"2024-03-01"

​
service_end_date
string<date> | null

Service period end date

Example:

"2024-03-31"

​
notes
string | null

Internal notes for the invoice

​
recipients
string[] | null

Additional email recipients

​
custom_fields
Custom Fields · object[] | null

Custom fields as list of {field_name, field_value}

​
invoice_status
string
default:draft

Initial invoice status (draft, ready-to-send, or sent)

Example:

"draft"

Response

Invoice created successfully

Output schema for invoice information.

​
uuid
string<uuid>

The unique identifier for the invoice

Example:

"123e4567-e89b-12d3-a456-426614174000"

​
invoice_status
string

The current status of the invoice

Example:

"draft"

​
amount
number

The total amount due for the invoice

Example:

1000

​
currency
string

The currency code for the invoice

Example:

"USD"

​
invoice_number
string

The unique invoice number

Example:

"INV-2024-001"

​
invoice_date
string<date>

The date when the invoice was created

Example:

"2024-03-21"

​
due_date
string<date> | null

The date by which the invoice must be paid

Example:

"2024-04-21"

​
service_start_date
string<date> | null

The start date of the service period

Example:

"2024-03-01"

​
service_end_date
string<date> | null

The end date of the service period

Example:

"2024-03-31"

​
description
string | null

A description of the invoice

Example:

"Monthly services for March 2024"

​
created_at
string<date-time>

The timestamp when the invoice was created

Example:

"2024-03-21T10:00:00Z"

​
is_recurring
boolean

Indicates if this is a recurring invoice

Example:

false

​
from_external_source
boolean

Indicates if the invoice was created from an external source

Example:

false

​
external_source
string | null

The name of the external source if applicable

Example:

"stripe"

​
external_source_id
string | null

The ID of the invoice in the external system

Example:

"inv_123456"

​
payment_link
string | null

URL where the customer can pay this invoice

Example:

"https://app.justpaid.ai/portal/inv/123"

​
line_items
InvoiceLineItemOut2 · object[]

List of line items included in this invoice

​
file_url
string | null

URL to download the invoice PDF

Example:

"https://api.justpaid.ai/invoices/123.pdf"

​
customer
CustomerOut2 · object | null

Details of the customer associated with this invoice