curl -X POST https://acme.orgo.space/api/v1/event_attends \
-H "Api-Token: $ORGO_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"event": "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
"user": "/api/v1/users/42",
"status": "NEW"
}'const res = await fetch("https://acme.orgo.space/api/v1/event_attends", {
method: "POST",
headers: {
"Api-Token": process.env.ORGO_API_TOKEN,
"Content-Type": "application/json",
},
body: JSON.stringify({
event: "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
user: "/api/v1/users/42",
status: "NEW",
}),
});
$response = $client->post('/api/v1/event_attends', [
'headers' => ['Api-Token' => getenv('ORGO_API_TOKEN')],
'json' => [
'event' => '/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12',
'user' => '/api/v1/users/42',
'status' => 'NEW',
],
]);
import requests
url = "https://app.orgo.space/api/v1/event_attends"
payload = {
"event": "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
"user": "/api/v1/users/42",
"status": "NEW"
}
headers = {
"Api-Token": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://app.orgo.space/api/v1/event_attends"
payload := strings.NewReader("{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Api-Token", "<api-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://app.orgo.space/api/v1/event_attends")
.header("Api-Token", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://app.orgo.space/api/v1/event_attends")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Api-Token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}"
response = http.request(request)
puts response.read_body{
"id": 1042,
"event": {
"id": 12,
"name": "Annual General Meeting 2026"
},
"user": {
"id": 42,
"fullName": "James Patterson"
},
"status": "NEW",
"qrCode": "data:image/png;base64,iVBORw0KGgoAAAANS...",
"dateCreated": "2026-01-15T10:30:00+00:00"
}Register for an event
Creates a new event attendance. If the target user differs from the logged-in user, sets the attendance as an invitation and sends an invite email (for events with registration forms). Validates group membership for unit-scoped events, checks max capacity for non-ticketed events, and prevents duplicate registrations. Generates a unique hash for QR code check-in.
curl -X POST https://acme.orgo.space/api/v1/event_attends \
-H "Api-Token: $ORGO_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"event": "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
"user": "/api/v1/users/42",
"status": "NEW"
}'const res = await fetch("https://acme.orgo.space/api/v1/event_attends", {
method: "POST",
headers: {
"Api-Token": process.env.ORGO_API_TOKEN,
"Content-Type": "application/json",
},
body: JSON.stringify({
event: "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
user: "/api/v1/users/42",
status: "NEW",
}),
});
$response = $client->post('/api/v1/event_attends', [
'headers' => ['Api-Token' => getenv('ORGO_API_TOKEN')],
'json' => [
'event' => '/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12',
'user' => '/api/v1/users/42',
'status' => 'NEW',
],
]);
import requests
url = "https://app.orgo.space/api/v1/event_attends"
payload = {
"event": "/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12",
"user": "/api/v1/users/42",
"status": "NEW"
}
headers = {
"Api-Token": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://app.orgo.space/api/v1/event_attends"
payload := strings.NewReader("{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Api-Token", "<api-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://app.orgo.space/api/v1/event_attends")
.header("Api-Token", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://app.orgo.space/api/v1/event_attends")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Api-Token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"event\": \"/api/v1/events/01938d8e-9c4f-7c2a-b8e1-3f7a9b8c4f12\",\n \"user\": \"/api/v1/users/42\",\n \"status\": \"NEW\"\n}"
response = http.request(request)
puts response.read_body{
"id": 1042,
"event": {
"id": 12,
"name": "Annual General Meeting 2026"
},
"user": {
"id": 42,
"fullName": "James Patterson"
},
"status": "NEW",
"qrCode": "data:image/png;base64,iVBORw0KGgoAAAANS...",
"dateCreated": "2026-01-15T10:30:00+00:00"
}Authorizations
Server-to-server authentication. Generate a token in the admin UI at
Settings → Developers → API Access. Send the raw token in the
Api-Token header — there is no Bearer prefix.
Tokens can be marked read-only at creation time, in which case the API
rejects any non-GET request with 403 Forbidden.
Body
The new EventAttend resource
"/api/v1/events/1"
"/api/v1/users/1"
"/api/v1/contacts/1"
"/api/v1/product_payments/1"
"/api/v1/product_prices/1"
"/api/v1/imports/1"
"/api/v1/users/1"
"/api/v1/contacts/1"
["/api/v1/event_attend_addons/1"]
"/api/v1/event_attends/1"
"/api/v1/invoices/1"
["/api/v1/custom_field_values/1"]
Response
EventAttend resource created
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