Sendchamp API Authentication

All Sendchamp Open API endpoints require authentication with your dashboard access key.

Get your access key

Pass the key as a Bearer token on every request:

Authorization: Bearer sendchamp_live_YOUR_ACCESS_KEY
Content-Type: application/json

https://api.sendchamp.com/api/v1

Store the key in environment variables — never commit it to source control:

# .env
SENDCHAMP_ACCESS_KEY=sendchamp_live_YOUR_ACCESS_KEY

// Node.js
const headers = {
  Authorization: `Bearer ${process.env.SENDCHAMP_ACCESS_KEY}`,
  "Content-Type": "application/json",
};

# Python
import os
headers = {
    "Authorization": f"Bearer {os.environ['SENDCHAMP_ACCESS_KEY']}",
    "Content-Type": "application/json",
}

Before sending messages, check your balance:

curl -X GET https://api.sendchamp.com/api/v1/wallet-balance \
  -H "Authorization: Bearer $SENDCHAMP_ACCESS_KEY"

Insufficient balance returns a 400 with message "Low balance, fund your wallet" or "insufficient fund".

Sendchamp applies rate limits per API key. Implement exponential backoff on 429 responses.