Cancel an invoice

curl --request POST \
  --url https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel \
  --header 'X-Numero-Api-Key: <api-key>' \
  --header 'X-Numero-Signature: <api-key>'

import requests

url = "https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel"

headers = {
    "X-Numero-Api-Key": "<api-key>",
    "X-Numero-Signature": "<api-key>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Numero-Api-Key': '<api-key>', 'X-Numero-Signature': '<api-key>'}
};

fetch('https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel', 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.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "X-Numero-Api-Key: <api-key>",
    "X-Numero-Signature: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel"

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

	req.Header.Add("X-Numero-Api-Key", "<api-key>")
	req.Header.Add("X-Numero-Signature", "<api-key>")

	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.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel")
  .header("X-Numero-Api-Key", "<api-key>")
  .header("X-Numero-Signature", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel")

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

request = Net::HTTP::Post.new(url)
request["X-Numero-Api-Key"] = '<api-key>'
request["X-Numero-Signature"] = '<api-key>'

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

{
  "data": "<unknown>",
  "error": {
    "message": "<string>",
    "param": "<string>"
  },
  "meta": {
    "request_id": "<string>",
    "pagination": {
      "page": 123,
      "page_size": 123,
      "total": 123,
      "has_more": true
    }
  }
}

POST

business

invoices

{invoiceNumber}

cancel

Cancel an invoice

curl --request POST \
  --url https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel \
  --header 'X-Numero-Api-Key: <api-key>' \
  --header 'X-Numero-Signature: <api-key>'

import requests

url = "https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel"

headers = {
    "X-Numero-Api-Key": "<api-key>",
    "X-Numero-Signature": "<api-key>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Numero-Api-Key': '<api-key>', 'X-Numero-Signature': '<api-key>'}
};

fetch('https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel', 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.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "X-Numero-Api-Key: <api-key>",
    "X-Numero-Signature: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel"

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

	req.Header.Add("X-Numero-Api-Key", "<api-key>")
	req.Header.Add("X-Numero-Signature", "<api-key>")

	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.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel")
  .header("X-Numero-Api-Key", "<api-key>")
  .header("X-Numero-Signature", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.usenumero.com/numeroaccount/api/v1/business/invoices/{invoiceNumber}/cancel")

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

request = Net::HTTP::Post.new(url)
request["X-Numero-Api-Key"] = '<api-key>'
request["X-Numero-Signature"] = '<api-key>'

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

{
  "data": "<unknown>",
  "error": {
    "message": "<string>",
    "param": "<string>"
  },
  "meta": {
    "request_id": "<string>",
    "pagination": {
      "page": 123,
      "page_size": 123,
      "total": 123,
      "has_more": true
    }
  }
}

Authorizations

X-Numero-Api-Key

string

header

required

Your business API key (live_key_...). Issued on approval; managed in Dashboard → Settings → Developer.

X-Numero-Signature

string

header

required

Base64(HMAC-SHA256(publicApiKey, input)) over the raw request body (POST) or canonicalized query string (signed GET). Also send X-Numero-Signature-Version: v2. Required on money-movement / state-changing endpoints (marked 🔒).

The HMAC key is your Public Key as raw UTF-8 bytes — a SECRET despite the name, and a different value from the X-Numero-Api-Key authentication header. Signing with the API key will never produce a valid signature.

Path Parameters

invoiceNumber

string

required

Response

Cancelled

Canonical response envelope for the public surface. data on success, error on failure.

data

any

required

Endpoint payload on success (object or array); null on failure.

error

object | null

required

Show child attributes

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API Reference

Cancel an invoice

Authorizations

Path Parameters

Response