Sinch API

SMS, voice, video, and verification APIs with RCS and rich messaging.

Quick Facts

Overview

Sinch API is a communication apis provided by Sinch. SMS, voice, video, and verification APIs with RCS and rich messaging. This API is designed to help developers integrate communication capabilities into their applications with minimal setup and maximum reliability.

The API supports API Key + Secret authentication, ensuring secure access to all endpoints. With a usage-based pricing model, Sinch offers flexible options for projects of any size, from prototypes to enterprise deployments.

Sinch maintains comprehensive documentation, SDKs for popular programming languages, and active community support. The API is built on REST principles, returning JSON responses with standard HTTP status codes, making it straightforward to integrate into existing workflows.

Authentication

This API uses API Key + Secret authentication. Include both your API key and API secret in the request for authentication.

Always store your credentials securely using environment variables or a secrets manager. Never commit API keys to version control or expose them in client-side code.

Code Samples

Python

import requests
import os

API_KEY = os.environ.get("API_KEY", "YOUR_API_KEY")
BASE_URL = "https://api.sinch.com"

headers = {
    "Authorization": f"Bearer {API_KEY}",
    "Content-Type": "application/json"
}

response = requests.get(f"{BASE_URL}/v1/resources", headers=headers)
print(response.status_code)
print(response.json())

JavaScript

const API_KEY = process.env.API_KEY || 'YOUR_API_KEY';
const BASE_URL = 'https://api.sinch.com';

const response = await fetch(`${BASE_URL}/v1/resources`, {
  headers: {
    'Authorization': `Bearer ${API_KEY}`,
    'Content-Type': 'application/json'
  }
});
const data = await response.json();
console.log(data);

cURL

curl -H "Authorization: Bearer $API_KEY" \
     -H "Content-Type: application/json" \
     https://api.sinch.com/v1/resources

Go

package main

import (
    "net/http"
    "fmt"
    "io"
    "os"
)

func main() {
    apiKey := os.Getenv("API_KEY")
    if apiKey == "" {
        apiKey = "YOUR_API_KEY"
    }
    req, _ := http.NewRequest("GET", "https://api.sinch.com/v1/resources", nil)
    req.Header.Set("Authorization", "Bearer " + apiKey)
    req.Header.Set("Content-Type", "application/json")
    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

Pricing

The pricing model is usage-based. Pay only for what you use, with pricing based on API calls, tokens, or compute time. Visit the provider’s pricing page at https://sinch.com for current rates and detailed pricing information.

Use Cases

• Integration: Connect Sinch services to your application for seamless communication functionality.
• Automation: Automate communication workflows and reduce manual operations.
• Scaling: Handle growing communication demands with Sinch’s robust infrastructure.

Related APIs

• Twilio API
• Vonage API
• SendGrid API
• Resend API
• Mailgun API

Further Reading

• Integration Guide
• FAQ
• Glossary