API reference

Communities

Communities and their members.

List communities

GET/communities

Lists the workspace's communities with their members and next meetup.

Scopes: communities:read

Parameters

query

cursorstring
Where the page starts: nextCursor from the page before, exactly as it was returned. Leave out for the first page.
limitinteger (int32)
How many on a page, up to 500.
Default: 100

Answers

200 A page of communities. CommunityList
Fields
- dataCommunity[]
  The items of this page.
  Show the fields
  - communityIdstring (uuid)
    The community's id.
  - slugstring
    Its address after /c/.
  - namestring
    Its name.
  - statusstring
    Draft or published.
  - citystring or null
    Where it meets.
  - onlineboolean
    Whether it meets online.
  - timeZonestring
    Its time zone.
  - membersinteger (int32)
    Members.
  - pendingMembersinteger (int32)
    Members waiting for approval.
  - upcomingMeetupsinteger (int32)
    Meetups to come.
  - nextMeetupobject or null
    The next meetup.
    Show the fields
    namestring or null
    Its name.
    startsUtcstring (date-time) or null
    When it starts, in UTC.
  - urlstring (uri)
    Its page.
- nextCursorstring or null
  The cursor for the next page; null on the last page. Pass it as cursor, with the same filters.
- hasMoreboolean
  Whether there is another page.
400 invalidCursor.
401 invalidKey, keyExpired, keyRevoked.
403 missingScope.
429 rateLimited.

Refusals

invalidKey keyExpired keyRevoked rateLimited missingScope invalidCursor

Request

curl "https://attendbeacon.com/api/v1/communities?limit=2" \
  -H "Authorization: Bearer $ATTENDBEACON_KEY"

const response = await fetch("https://attendbeacon.com/api/v1/communities?limit=2", {
  headers: {
    Authorization: `Bearer ${process.env.ATTENDBEACON_KEY}`
  }
});
if (!response.ok) throw new Error((await response.json()).detail);
const data = await response.json();

using System.Net.Http.Headers;
using System.Text;

using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("ATTENDBEACON_KEY"));

using var request = new HttpRequestMessage(HttpMethod.Get, "https://attendbeacon.com/api/v1/communities?limit=2");

using var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
var json = await response.Content.ReadAsStringAsync();

import os
import requests

response = requests.get(
    "https://attendbeacon.com/api/v1/communities", params={"limit": 2},
    headers={
        "Authorization": f"Bearer {os.environ['ATTENDBEACON_KEY']}"
    }
)
response.raise_for_status()
data = response.json()

$headers = @{
    Authorization = "Bearer $env:ATTENDBEACON_KEY"
}

$data = Invoke-RestMethod -Method Get -Uri "https://attendbeacon.com/api/v1/communities?limit=2" -Headers $headers

200 Example answer

JSON

{
  "data": [
    {
      "communityId": "b3ac6200-0000-4000-8000-000000000001",
      "slug": "beacon-community-amsterdam",
      "name": "Beacon Community Amsterdam",
      "status": "published",
      "city": "Amsterdam",
      "online": true,
      "timeZone": "Europe/Amsterdam",
      "members": 42,
      "pendingMembers": 0,
      "upcomingMeetups": 3,
      "nextMeetup": {
        "name": "Beacon Community #25: November 2026",
        "startsUtc": "2026-11-05T17:30:00.000Z"
      },
      "url": "https://attendbeacon.com/c/beacon-community-amsterdam"
    }
  ],
  "nextCursor": null,
  "hasMore": false
}

400 invalidCursor.

JSON

{
  "type": "https://attendbeacon.com/developers/errors#invalidCursor",
  "title": "The cursor is not valid",
  "status": 400,
  "detail": "Pass nextCursor exactly as a list returned it, with the same filters.",
  "instance": "/api/v1/communities",
  "code": "invalidCursor",
  "traceId": "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
  "error": "Pass nextCursor exactly as a list returned it, with the same filters."
}

Get a community

GET/communities/{communityId}

Gets one community.

Scopes: communities:read

Answers with an ETag; send If-None-Match to save a download.

Parameters

path

communityIdstring (uuid)required
The community's id.

header

If-None-Matchstring
The ETag you have: when it is still current the answer is 304 with no body.

Answers

200 The community. CommunityDetail
Fields
- communityIdstring (uuid)
  The community's id.
- slugstring
  Its address after /c/.
- namestring
  Its name.
- summarystring or null
  A line about it.
- descriptionstring or null
  About it, in Markdown.
- citystring or null
  Where it meets.
- onlineboolean
  Whether it meets online.
- languagesstring[]
  Its languages.
- timeZonestring
  Its time zone.
- joinPolicystring
  Open or approval.
- statusstring
  Draft or published.
- urlstring (uri)
  Its page.
- createdUtcstring (date-time)
  When it was made, in UTC.
- updatedUtcstring (date-time)
  When it last changed, in UTC.
304 Not modified: If-None-Match named the representation as it is.
401 invalidKey, keyExpired, keyRevoked.
403 missingScope.
404 notFound.
429 rateLimited.

Refusals

invalidKey keyExpired keyRevoked rateLimited missingScope notFound

Request

curl "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001" \
  -H "Authorization: Bearer $ATTENDBEACON_KEY"

const response = await fetch("https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001", {
  headers: {
    Authorization: `Bearer ${process.env.ATTENDBEACON_KEY}`
  }
});
if (!response.ok) throw new Error((await response.json()).detail);
const data = await response.json();

using System.Net.Http.Headers;
using System.Text;

using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("ATTENDBEACON_KEY"));

using var request = new HttpRequestMessage(HttpMethod.Get, "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001");

using var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
var json = await response.Content.ReadAsStringAsync();

import os
import requests

response = requests.get(
    "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001",
    headers={
        "Authorization": f"Bearer {os.environ['ATTENDBEACON_KEY']}"
    }
)
response.raise_for_status()
data = response.json()

$headers = @{
    Authorization = "Bearer $env:ATTENDBEACON_KEY"
}

$data = Invoke-RestMethod -Method Get -Uri "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001" -Headers $headers

200 Example answer

JSON

{
  "communityId": "b3ac6200-0000-4000-8000-000000000001",
  "slug": "beacon-community-amsterdam",
  "name": "Beacon Community Amsterdam",
  "summary": "Builders and operators of Amsterdam, every first Thursday: two talks, pizza and drinks, free for everybody.",
  "description": "Beacon Community Amsterdam is the user group of the people who build software and the people who run it. We meet on the **first Thursday of every month** in the Beurs van Berlage: doors and pizza at 18:30, two talks of half an hour, then drinks.\n\n- Free, always: say you are coming so we order enough pizza.\n- Want to speak? Tell us at a meetup or by email.\n- Can't make it? Talks are recorded when the speaker agrees.\n\nOrganised by volunteers, hosted by Beacon Events.",
  "city": "Amsterdam",
  "online": true,
  "languages": [
    "en",
    "nl"
  ],
  "timeZone": "Europe/Amsterdam",
  "joinPolicy": "open",
  "status": "published",
  "url": "https://attendbeacon.com/c/beacon-community-amsterdam",
  "createdUtc": "2026-03-14T21:40:47.963Z",
  "updatedUtc": "2026-10-14T21:40:55.134Z"
}

401 invalidKey, keyExpired, keyRevoked.

JSON

{
  "type": "https://attendbeacon.com/developers/errors#invalidKey",
  "title": "No working API key",
  "status": 401,
  "detail": "No key was sent, or it is not one this platform made. Send it as Authorization: Bearer abk_... or in X-Api-Key.",
  "instance": "/api/v1/communities/{communityId}",
  "code": "invalidKey",
  "traceId": "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
  "error": "No key was sent, or it is not one this platform made. Send it as Authorization: Bearer abk_... or in X-Api-Key."
}

List members

GET/communities/{communityId}/members

Lists a community's members, oldest change first. Names and addresses need people:read.

Scopes: communities:read

Parameters

path

communityIdstring (uuid)required
The community's id.

query

cursorstring
Where the page starts: nextCursor from the page before, exactly as it was returned. Leave out for the first page.
limitinteger (int32)
How many on a page, up to 500.
Default: 100
updatedSincestring (date-time)
Only what changed at or after this moment, in UTC unless it says otherwise. Pass the newest updatedUtc your last sync saw.
statusstring
Only members with this status.
One of: active, pending, left

Answers

200 A page of members. CommunityMemberList
Fields
- dataCommunityMember[]
  The items of this page.
  Show the fields
  - memberIdstring (uuid)
    The member's id.
  - communityIdstring (uuid)
    The community's id.
  - namestring or null
    Their name. Null without people:read.
  - emailstring or null
    Their address. Null without people:read.
  - languagestring
    Their language.
  - statusstring
    Active, pending or left.
  - announcementsboolean
    Whether they want announcements.
  - remindersboolean
    Whether they want reminders.
  - joinedUtcstring (date-time)
    When they joined, in UTC.
  - approvedUtcstring (date-time) or null
    When they were approved, in UTC.
  - updatedUtcstring (date-time)
    When they last changed, in UTC.
  - erasedboolean
    Whether the person deleted their data from the event app; then nothing personal is returned, whatever the key may read.
  - personalDatastring
    Whether the personal fields are here: included, withheld (the key lacks people:read) or erased (the person deleted their data).
    One of: included, withheld, erased
- nextCursorstring or null
  The cursor for the next page; null on the last page. Pass it as cursor, with the same filters.
- hasMoreboolean
  Whether there is another page.
400 invalidCursor, invalidUpdatedSince, invalidRequest.
401 invalidKey, keyExpired, keyRevoked.
403 missingScope.
404 notFound.
429 rateLimited.

Refusals

invalidKey keyExpired keyRevoked rateLimited missingScope notFound invalidCursor invalidUpdatedSince invalidRequest

Request

curl "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001/members?limit=2" \
  -H "Authorization: Bearer $ATTENDBEACON_KEY"

const response = await fetch("https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001/members?limit=2", {
  headers: {
    Authorization: `Bearer ${process.env.ATTENDBEACON_KEY}`
  }
});
if (!response.ok) throw new Error((await response.json()).detail);
const data = await response.json();

using System.Net.Http.Headers;
using System.Text;

using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("ATTENDBEACON_KEY"));

using var request = new HttpRequestMessage(HttpMethod.Get, "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001/members?limit=2");

using var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
var json = await response.Content.ReadAsStringAsync();

import os
import requests

response = requests.get(
    "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001/members", params={"limit": 2},
    headers={
        "Authorization": f"Bearer {os.environ['ATTENDBEACON_KEY']}"
    }
)
response.raise_for_status()
data = response.json()

$headers = @{
    Authorization = "Bearer $env:ATTENDBEACON_KEY"
}

$data = Invoke-RestMethod -Method Get -Uri "https://attendbeacon.com/api/v1/communities/b3ac6200-0000-4000-8000-000000000001/members?limit=2" -Headers $headers

200 Example answer

JSON

{
  "data": [
    {
      "memberId": "b3ac6204-0000-4000-8000-000000000001",
      "communityId": "b3ac6200-0000-4000-8000-000000000001",
      "name": "Sanne de Vries",
      "email": "sanne.1@community.example",
      "language": "nl",
      "status": "active",
      "announcements": true,
      "reminders": true,
      "joinedUtc": "2026-04-16T00:40:47.963Z",
      "approvedUtc": "2026-04-16T00:40:47.963Z",
      "updatedUtc": "2026-10-14T21:40:55.284Z",
      "erased": false,
      "personalData": "included"
    },
    {
      "memberId": "b3ac6204-0000-4000-8000-000000000002",
      "communityId": "b3ac6200-0000-4000-8000-000000000001",
      "name": "Daan Jansen",
      "email": "daan.2@community.example",
      "language": "en",
      "status": "active",
      "announcements": true,
      "reminders": true,
      "joinedUtc": "2026-04-17T06:40:47.963Z",
      "approvedUtc": "2026-04-17T06:40:47.963Z",
      "updatedUtc": "2026-10-14T21:40:55.364Z",
      "erased": false,
      "personalData": "included"
    }
  ],
  "nextCursor": "YzE6MDYzOTI3NjEwODU1MzY0MDAwMHxiM2FjNjIwNDAwMDA0MDAwODAwMDAwMDAwMDAwMDAwMg",
  "hasMore": true
}

400 invalidCursor, invalidUpdatedSince, invalidRequest.

JSON

{
  "type": "https://attendbeacon.com/developers/errors#invalidCursor",
  "title": "The cursor is not valid",
  "status": 400,
  "detail": "Pass nextCursor exactly as a list returned it, with the same filters.",
  "instance": "/api/v1/communities/{communityId}/members",
  "code": "invalidCursor",
  "traceId": "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
  "error": "Pass nextCursor exactly as a list returned it, with the same filters."
}

The guides and this site are in your language. The API reference's own descriptions are in English, as the API itself speaks.

#List communities

Parameters

Answers

Refusals

#Get a community

Parameters

Answers

Refusals

#List members

Parameters

Answers

Refusals

List communities

Get a community

List members