cURL
curl --request POST \
--url https://api.maesn.dev/accounting/projects/async \
--header 'Content-Type: application/json' \
--header 'X-ACCOUNT-KEY: <x-account-key>' \
--header 'X-API-KEY: <x-api-key>' \
--data '
{
"code": "9012",
"contactId": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
"currency": "EUR",
"description": "Service and Maintenance Project",
"endDate": "2021-01-01T00:00:00Z",
"name": "Service und Unterhalt",
"parentProjectId": "e587bs49-5be6-ee11-a201-6045bde98d28",
"status": "ACTIVE",
"startDate": "2021-01-01T00:00:00Z"
}
'import requests
url = "https://api.maesn.dev/accounting/projects/async"
payload = {
"code": "9012",
"contactId": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
"currency": "EUR",
"description": "Service and Maintenance Project",
"endDate": "2021-01-01T00:00:00Z",
"name": "Service und Unterhalt",
"parentProjectId": "e587bs49-5be6-ee11-a201-6045bde98d28",
"status": "ACTIVE",
"startDate": "2021-01-01T00:00:00Z"
}
headers = {
"X-API-KEY": "<x-api-key>",
"X-ACCOUNT-KEY": "<x-account-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'X-API-KEY': '<x-api-key>',
'X-ACCOUNT-KEY': '<x-account-key>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
code: '9012',
contactId: 'eaa28f49-6028-4b6e-bb12-d8f6278073fc',
currency: 'EUR',
description: 'Service and Maintenance Project',
endDate: '2021-01-01T00:00:00Z',
name: 'Service und Unterhalt',
parentProjectId: 'e587bs49-5be6-ee11-a201-6045bde98d28',
status: 'ACTIVE',
startDate: '2021-01-01T00:00:00Z'
})
};
fetch('https://api.maesn.dev/accounting/projects/async', 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.maesn.dev/accounting/projects/async",
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([
'code' => '9012',
'contactId' => 'eaa28f49-6028-4b6e-bb12-d8f6278073fc',
'currency' => 'EUR',
'description' => 'Service and Maintenance Project',
'endDate' => '2021-01-01T00:00:00Z',
'name' => 'Service und Unterhalt',
'parentProjectId' => 'e587bs49-5be6-ee11-a201-6045bde98d28',
'status' => 'ACTIVE',
'startDate' => '2021-01-01T00:00:00Z'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-ACCOUNT-KEY: <x-account-key>",
"X-API-KEY: <x-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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.maesn.dev/accounting/projects/async"
payload := strings.NewReader("{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-API-KEY", "<x-api-key>")
req.Header.Add("X-ACCOUNT-KEY", "<x-account-key>")
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.maesn.dev/accounting/projects/async")
.header("X-API-KEY", "<x-api-key>")
.header("X-ACCOUNT-KEY", "<x-account-key>")
.header("Content-Type", "application/json")
.body("{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.maesn.dev/accounting/projects/async")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["X-ACCOUNT-KEY"] = '<x-account-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}"
response = http.request(request)
puts response.read_body{
"meta": {
"warnings": [
"Field not used by target system"
],
"pagination": {
"total": 125,
"perPage": 50,
"currentPage": 1,
"totalPages": 3
},
"partialErrors": [
{
"code": "FILE_UPLOAD_FAILED",
"message": "Attachment invoice.pdf could not be uploaded to the target system."
}
]
},
"data": {
"taskId": "02cc5849-b23c-48fe-8a9b-96f74bfc9571"
}
}Projects
Create project async
POST
/
accounting
/
projects
/
async
cURL
curl --request POST \
--url https://api.maesn.dev/accounting/projects/async \
--header 'Content-Type: application/json' \
--header 'X-ACCOUNT-KEY: <x-account-key>' \
--header 'X-API-KEY: <x-api-key>' \
--data '
{
"code": "9012",
"contactId": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
"currency": "EUR",
"description": "Service and Maintenance Project",
"endDate": "2021-01-01T00:00:00Z",
"name": "Service und Unterhalt",
"parentProjectId": "e587bs49-5be6-ee11-a201-6045bde98d28",
"status": "ACTIVE",
"startDate": "2021-01-01T00:00:00Z"
}
'import requests
url = "https://api.maesn.dev/accounting/projects/async"
payload = {
"code": "9012",
"contactId": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
"currency": "EUR",
"description": "Service and Maintenance Project",
"endDate": "2021-01-01T00:00:00Z",
"name": "Service und Unterhalt",
"parentProjectId": "e587bs49-5be6-ee11-a201-6045bde98d28",
"status": "ACTIVE",
"startDate": "2021-01-01T00:00:00Z"
}
headers = {
"X-API-KEY": "<x-api-key>",
"X-ACCOUNT-KEY": "<x-account-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'X-API-KEY': '<x-api-key>',
'X-ACCOUNT-KEY': '<x-account-key>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
code: '9012',
contactId: 'eaa28f49-6028-4b6e-bb12-d8f6278073fc',
currency: 'EUR',
description: 'Service and Maintenance Project',
endDate: '2021-01-01T00:00:00Z',
name: 'Service und Unterhalt',
parentProjectId: 'e587bs49-5be6-ee11-a201-6045bde98d28',
status: 'ACTIVE',
startDate: '2021-01-01T00:00:00Z'
})
};
fetch('https://api.maesn.dev/accounting/projects/async', 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.maesn.dev/accounting/projects/async",
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([
'code' => '9012',
'contactId' => 'eaa28f49-6028-4b6e-bb12-d8f6278073fc',
'currency' => 'EUR',
'description' => 'Service and Maintenance Project',
'endDate' => '2021-01-01T00:00:00Z',
'name' => 'Service und Unterhalt',
'parentProjectId' => 'e587bs49-5be6-ee11-a201-6045bde98d28',
'status' => 'ACTIVE',
'startDate' => '2021-01-01T00:00:00Z'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-ACCOUNT-KEY: <x-account-key>",
"X-API-KEY: <x-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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.maesn.dev/accounting/projects/async"
payload := strings.NewReader("{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-API-KEY", "<x-api-key>")
req.Header.Add("X-ACCOUNT-KEY", "<x-account-key>")
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.maesn.dev/accounting/projects/async")
.header("X-API-KEY", "<x-api-key>")
.header("X-ACCOUNT-KEY", "<x-account-key>")
.header("Content-Type", "application/json")
.body("{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.maesn.dev/accounting/projects/async")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["X-ACCOUNT-KEY"] = '<x-account-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"code\": \"9012\",\n \"contactId\": \"eaa28f49-6028-4b6e-bb12-d8f6278073fc\",\n \"currency\": \"EUR\",\n \"description\": \"Service and Maintenance Project\",\n \"endDate\": \"2021-01-01T00:00:00Z\",\n \"name\": \"Service und Unterhalt\",\n \"parentProjectId\": \"e587bs49-5be6-ee11-a201-6045bde98d28\",\n \"status\": \"ACTIVE\",\n \"startDate\": \"2021-01-01T00:00:00Z\"\n}"
response = http.request(request)
puts response.read_body{
"meta": {
"warnings": [
"Field not used by target system"
],
"pagination": {
"total": 125,
"perPage": 50,
"currentPage": 1,
"totalPages": 3
},
"partialErrors": [
{
"code": "FILE_UPLOAD_FAILED",
"message": "Attachment invoice.pdf could not be uploaded to the target system."
}
]
},
"data": {
"taskId": "02cc5849-b23c-48fe-8a9b-96f74bfc9571"
}
}Field support per integration

AbaConnect
AbaConnect
This endpoint is asynchronous. The response returns a
taskId. Use /asyncTask/{taskId} to check the task status and obtain the final result once it is ready.string
A whole number with at most 10 digits.
enum
For details visit the
Standardized Data section.string
At most 100 characters.
string
required
At most 100 characters.
string
A whole number with at most 12 digits. If you leave it out, Abacus picks the number.
string
If the project is a sub-project,
parentProjectId is the ID of the parent project. A whole number with at most 12 digits.Body
application/json
Example:
"9012"
Example:
"eaa28f49-6028-4b6e-bb12-d8f6278073fc"
Available options:
AED, AFN, ALL, AMD, ANG, AOA, ARS, AUD, AWG, AZN, BAM, BBD, BDT, BGN, BHD, BIF, BMD, BND, BOB, BRL, BSD, BTN, BWP, BYR, BZD, CAD, CDF, CHF, CLP, CNY, COP, CRC, CUC, CVE, CZK, DJF, DKK, DOP, DZD, EEK, EGP, ERN, ETB, EUR, FJD, FKP, GBP, GEL, GHS, GIP, GMD, GNF, GQE, GTQ, GYD, HKD, HNL, HRK, HTG, HUF, IDR, ILS, INR, IQD, IRR, ISK, JMD, JOD, JPY, KES, KGS, KHR, KMF, KPW, KRW, KWD, KYD, KZT, LAK, LBP, LKR, LRD, LSL, LTL, LVL, LYD, MAD, MDL, MGA, MKD, MMK, MNT, MOP, MRO, MUR, MVR, MWK, MXN, MYR, MZM, NAD, NGN, NIO, NOK, NPR, NZD, OMR, PAB, PEN, PGK, PHP, PKR, PLN, PYG, QAR, RON, RSD, RUB, SAR, SBD, SCR, SDG, SEK, SGD, SHP, SLL, SOS, SRD, SYP, SZL, THB, TJS, TMT, TND, TRY, TTD, TWD, TZS, UAH, UGX, USD, UYU, UZS, VEB, VND, VUV, WST, XAF, XCD, XDR, XOF, XPF, YER, ZAR, ZMK, ZWR Example:
"EUR"
Example:
"Service and Maintenance Project"
Example:
"2021-01-01T00:00:00Z"
Example:
"Service und Unterhalt"
Example:
"e587bs49-5be6-ee11-a201-6045bde98d28"
Available options:
ACTIVE, CLOSED Example:
"ACTIVE"
Example:
"2021-01-01T00:00:00Z"
Last modified on November 2, 2026
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