Unified

Run in Postman Start Free

List all invoices

Updated: November 13, 2026

GET/accounting/{connection_id}/invoice

Returns a list of AccountingInvoices. Narrow the results with the query parameters before paging, then page through them with limit and offset (the default and maximum page size depend on the integration). Use fields to return only the fields you need and reduce the response size. When the integration supports a total count, it is returned in the X-Total-Count response header. Use each item's id to retrieve, update, or delete it where those operations are supported.

Parameters

Returns

AccountingInvoicearray

idstring

created_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

updated_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

due_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

paid_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

refunded_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

cancelled_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

posted_atdate-time

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

total_amountnumber

paid_amountnumber

refund_amountnumber

tax_amountnumber

discount_amountnumber

balance_amountnumber

invoice_numberstring

External identifier (ie. reference) for this invoice

referencestring

contact_idstring

(reference to AccountingContact)

currencystring

notesstring

extended_notes array

refund_reasonstring

term enum

Valid values:

"ON_RECEIPT"

"NET_7"

"NET_10"

"NET_15"

"NET_20"

"NET_25"

"NET_30"

"NET_45"

"NET_60"

"NET_90"

"OTHER"

@deprecated use payment_terms instead

payment_terms enum

Valid values:

"ON_RECEIPT"

"NET_7"

"NET_10"

"NET_15"

"NET_20"

"NET_25"

"NET_30"

"NET_45"

"NET_60"

"NET_90"

"OTHER"

paymentterm_idstring

lineitems array

The invoice's line items: what is billed, with the quantity, price and amount of each

status enum

Valid values:

"DRAFT"

"VOIDED"

"AUTHORIZED"

"PAID"

"PARTIALLY_PAID"

"PARTIALLY_REFUNDED"

"REFUNDED"

"SUBMITTED"

"DELETED"

"OVERDUE"

urlstring

The public URL for the invoice to send to a customer to view or pay.

payment_collection_method enum

Valid values:

"send_invoice"

"charge_automatically"

When set to charging_automatically, an automated attempt will occur to pay this invoice using the default payment source attached to the contactcustomer. When set to send_invoice, an will email will be sent with this invoice to the contact/customer with payment instructions.

type enum

Valid values:

"INVOICE"

"CREDITMEMO"

BILL removed (use AccountingBill); remaining values: INVOICE, CREDITMEMO

attachments array

sendboolean

organization_idstring

payments array

ead-only reciprocal of PaymentPayment.allocations; payments applied to this invoice

category_idsstring array

(reference to AccountingCategory)

project_idstring

(reference to TaskProject)

metadata array

sub_total_amountnumber

Total before tax

exchange_ratenumber

Exchange rate to the base/home currency at the document date

is_inclusive_of_taxboolean

True when the document amounts already include tax

salesorder_idsstring array

refs -> AccountingSalesorder; the sales orders this invoice was raised from

raw

Errors

Errors return the HTTP status code and a JSON body with statusCode, error (the short label) and message (a human-readable detail).

{
  "statusCode": 429,
  "error": "Too Many Requests",
  "message": "Too many requests to unified.to API; max requests per minute: N"
}

Status	Error	Meaning
`400`	Bad Request	The request was malformed or failed validation.
`401`	Unauthorized	The connection is likely broken; re-authorize it.
`403`	Forbidden	The connection is missing permissions or scopes.
`404`	Not Found	The requested resource does not exist.
`429`	Too Many Requests	Rate limit exceeded (see the two sources below).
`500`	Internal Server Error	An unexpected error occurred.
`501`	Not Implemented	Not supported by this integration.

Errors from the underlying integration pass through: the integration's status comes back as ours (429, 401, 403, 404 or 5xx), usually with its message. When the integration's error body is unclear, Unified extracts what it can and returns a clearer message.

429 Too Many Requests

A 429 has two possible sources:

The integration's own rate limit, passed through.
Unified's workspace limit: a rolling 60 seconds, set by plan, with the message Too many requests to unified.to API; max requests per minute: N.

const options = {
  method: 'GET',
  url: 'https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice',
  headers: {
    authorization: 'bearer .....'
  },
  params: {
    limit: 50,
    offset: 0,
    updated_gte: '2026-01-01T00:00:00.000Z',
    sort: 'updated_at',
    order: 'asc',
    query: '',
    contact_id: '',
    org_id: '',
    type: '',
    start_gte: '',
    end_lt: '',
    fields: '',
    raw: '',
  }
};

const results = await axios.request(options);

Code Samples

Node.js SDK

import { UnifiedTo } from '@unified-api/typescript-sdk';

const sdk = new UnifiedTo({
    security: {
        jwt: '<YOUR_API_KEY_HERE>',
    },
});

const connectionId = '5de520f96e439b002043d8dc';

const results = await sdk.accounting.listAccountingInvoices({ connectionId, 
    limit: 50,
    offset: 0,
    updated_gte: '2026-01-01T00:00:00.000Z',
    sort: 'updated_at',
    order: 'asc',
    query: '',
    contact_id: '',
    org_id: '',
    type: '',
    start_gte: '',
    end_lt: '',
    fields: '',
    raw: '',
 });

Node.js (axios)

const options = {
  method: 'GET',
  url: 'https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice',
  headers: {
    authorization: 'bearer .....'
  },
  params: {
    limit: 50,
    offset: 0,
    updated_gte: '2026-01-01T00:00:00.000Z',
    sort: 'updated_at',
    order: 'asc',
    query: '',
    contact_id: '',
    org_id: '',
    type: '',
    start_gte: '',
    end_lt: '',
    fields: '',
    raw: '',
  }
};

const results = await axios.request(options);

Java

AsyncHttpClient client = new DefaultAsyncHttpClient();

client.prepare("GET", "https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw=")
  .setHeader("accept", "application/json")
  .setHeader("authorization", ".....")
  .execute()
  .toCompletableFuture()
  .thenAccept(System.out::println)
  .join();

client.close();

Go

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

url := `https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw=

req, _ := http.NewRequest("GET", url, nil)

req.Header.Add("accept", "application/json")
req.Header.Add("authorization", ".....")

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

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

Python

import requests

url = "https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw="

headers = {
    "accept": "application/json",
    "authorization": "....."
}

response = requests.get(url, headers=headers)

PHP

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw=",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "accept: application/json",
    "authorization: ....."
  ],
]);

Ruby

require 'uri'
require 'net/http'
require 'openssl'

url = URI("https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw=")

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

request = Net::HTTP::Get.new(url)
request["accept"] = 'application/json'
request["authorization"] = '....'

response = http.request(request)
puts response.read_body

cURL

curl --request GET \
  --url 'https://api.unified.to/accounting/5de520f96e439b002043d8dc/invoice?limit=50&offset=0&updated_gte=2026-01-01T00:00:00.000Z&sort=updated_at&order=asc&query=&contact_id=&org_id=&type=&start_gte=&end_lt=&fields=&raw=' \
  --header 'accept: application/json' \
  --header 'authorization: .....'

Are we missing anything? Let us know

Was this page helpful?