SendX API Documentation

This is the complete API documentation for connecting to the SendX API using MindCloud's Universal API. If you are new to MindCloud, start with the Introduction to see how one API can sit in front of many different apps.

MindCloud is an integration company that offers one normalized API to access 3,100+ apps from a single place. It cleans up provider-specific quirks, keeps requests and responses consistent, and centralizes authentication so you do not need to manage separate flows for every app. Browse other apps.

Meet SendX: Manage SendX contacts, lists, campaigns, and email templates. Keep reading to get started.

Quickstart

Before you run your first SendX request, you need three things:

1. A MindCloud account — sign in or create an account at MindCloud.
2. A MindCloud API Key — create one in API Keys. Keep it on your server.
3. At least one SendX connection — create or choose one in Connections. Note its connectionId.

Every SendX action uses the same URL pattern:

POST https://connect.mindcloud.co/v2/universal/apps/sendX/actions/{actionSlug}/run

You need a MindCloud API Key and a SendX connection. Then call an action such as List Contacts:

curl --request POST \
  --url "https://connect.mindcloud.co/v2/universal/apps/sendX/actions/list-contacts/run" \
  --header "Authorization: Bearer $MINDCLOUD_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
  "connectionId": "$CONNECTION_ID",
  "arguments": {}
}'

Every response comes back in the same envelope, with your rows in a data array:

{
  "success": true,
  "data": [
    { "id": "1042", "name": "Ava" }
  ],
  "meta": {}
}

After your first request works, use Shape your requests to control arguments, pagination, filtering, fields, and errors.

Authenticate with a MindCloud API Key plus a connectionId for your SendX account. See SendX API Authentication for the full flow and how to get your connection credentials.

SendX actions

All 24 published actions for this SendX version. Each page documents the endpoint, arguments, and response controls.

• POSTCreate Campaign
• POSTCreate Custom Field
• POSTCreate Email Template
• POSTCreate List
• POSTCreate Tag
• GETGet Campaign
• GETGet Campaign Report
• GETGet Contact
• GETGet Custom Field
• GETGet List
• GETGet Tag
• GETGet Template
• POSTIdentify Bulk Contacts
• POSTIdentify Contact
• GETList Campaigns
• GETList Contacts
• GETList Custom Fields
• GETList Lists
• GETList Tags
• GETList Templates
• PUTUpdate Contact
• PUTUpdate Custom Field
• PUTUpdate List
• PUTUpdate Tag

Related apps

More Marketing apps on the Universal API, behind the same REST shape. Or browse all apps.

Google FormsMailchimpCalendlyWebflowGoogle AdsActiveCampaignBrevoMailerLite