Public SDKs for 1msg.io extended WhatsApp API.

npm install @1msg/sdk

import { createClient } from '@1msg/sdk';

const client = createClient({
  baseUrl: 'https://api.1msg.io',
  instanceId: 'YOUR_INSTANCE_ID',
  token: process.env.MSG_API_TOKEN!,
});

await client.sendMessage({ body: 'Hello', chatId: '12020721369@c.us' });

Source: typescript/

Documentation:

• README.md — full developer guide
• AGENTS.md — machine-readable index for AI coding agents

Additional SDKs will be published gradually to their respective package registries. See the 1msg Developers Platform for install commands.

implementation("io.1msg:sdk:1.0.1")

Source: java/

implementation("io.1msg:sdk-kotlin:1.0.2")

Source: kotlin/

libraryDependencies += "io.1msg" %% "sdk-scala" % "1.0.2"

Source: scala/

dotnet add package OneMsg.ChatApi --version 1.0.2

Source: csharp/