Build on NextX
The open platform for partners and AI assistants: REST API, OAuth2, MCP, Webhooks, Node · Python SDK and CLI — everything to connect NextX to your product.
I'm a NextX customer
Connect your system to NextX — create an API key in the app, pick permissions, go. Working for a customer? Start here too.
Start →I build apps for NextX customers
Sign up yourself, get a Developer workspace with sample data, create an app with an App ID + App Secret instantly, test and Publish yourself.
Start as a partner →I use AI (MCP)
Plug any MCP-capable assistant (ChatGPT, Claude, Copilot, Cursor, Gemini, Grok…) into NextX — just a URL.
Connect AI →Build an app for NextX customers — 4 steps, all self-service
- 1
Sign up as a partner — you get a Developer workspace with sample data that never expires.
- 2
Create an app in My apps, pick Use cases, get the App ID + App Secret instantly.
- 3
Test in the Test Console or API Explorer: Generate Access Token, call the API, read API Logs.
- 4
Press Publish — the Publish checklist runs automatically; all green and any customer can install.
A Developer workspace sends nothing out (customer messages, SMS/ZNS/email, e-invoices, payments, calls).
Watch the whole flow in 4 minutes
Sign up → create an app → call the API → Publish, with voice-over.Vietnamese audio · 4:13Jump to a step
Done watching? Become a partner →
Start coding — call the API and AI tools from code or the terminal
Node · Python SDK
Typed clients for every REST route with token refresh, pagination and retries. Generated nightly from the live OpenAPI document.
npm install @nextxai/sdkpip install nextx-sdknextx CLI
Sign in via web or QR, ask the AI assistant (nextx ai -p), call the API, forward webhooks to your machine, run in CI.
brew install nextx-organization/nextx/nextxnpm install -g @nextxai/cliOAuth2
Apps get an Access token with the App ID + App Secret and call the API within what the customer approved at install.
Scopes per endpoint
Each API endpoint needs a scope; customers grant scopes when installing the app.
MCP
Plug straight into ChatGPT, Claude, Copilot, Cursor, Gemini, Grok… — just a URL and a NextX sign-in.
Webhooks
Receive CRM, Sales, Office, chat events… signed, retried on failure.