Create Subscriber

Creates a new subscriber in Buttondown.

POST

Query

Field selectionChoose which fields should be included in the response. Learn more

string

Comma-separated response fields to include.

Body

Arguments

stringrequired

Subscriber email address.

string

Private notes attached to the subscriber.

array of string

Tags to add when creating the subscriber.

string

Subscriber type to create.

Uncommon arguments

string

Original subscriber IP for spam validation.

boolean

Trusted-source only. Sends Buttondown's firewall-bypass header instead of passing this field upstream in the request body.

Try this request

Request

curl --request POST \
  --url "https://connect.mindcloud.co/v1/universal/buttondown/0.0.8/actions/create-subscriber" \
  --header "Authorization: Bearer $MINDCLOUD_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "connectionId": "$CONNECTION_ID",
  "email_address": ""
}'

{
  "success": true,
  "data": [
    {
      "clickedCount": 1,
      "clickRate": 1,
      "commentingDisabled": true,
      "creationDate": "2026-05-07T12:00:00.000Z",
      "deliveredCount": 1,
      "emailAddress": "[email protected]",
      "emailTransitions": [
        {}
      ],
      "firewallReasons": [
        "string"
      ],
      "id": "string",
      "ipAddress": "string",
      "metadata": {},
      "notes": "string",
      "openCount": 1,
      "openRate": 1,
      "riskScore": 1,
      "source": "string",
      "tags": [
        "string"
      ],
      "transitions": [
        {}
      ],
      "type": "string",
      "unsubscriptionDate": "2026-05-07T12:00:00.000Z",
      "unsubscriptionReason": "string"
    }
  ],
  "meta": {}
}

Every app you connect,one REST pattern

Call any app with one REST pattern. MindCloud handles each provider's auth, request shape, and responses for you.

Learn what the Universal API is

One REST patternUse the same request structure across apps like Slack, HubSpot, Salesforce, and thousands more.

Managed connectionsSend a MindCloud connection ID instead of handling provider tokens, refresh logic, and credential storage yourself.

Action-level docsEach action page shows the exact endpoint, required arguments, optional controls, and response behavior for that app version.