$ curl -X POST https://api-sms.ndemme.de/api/sms/send

The SMS gateway for developers.

Paste a curl command, send a text. No enterprise sales loops, no contracts, no minimums. Built for side projects, home automation scripts, and indie hackers.

Interactive Console Edit payload & click Send
send_sms_payload
cURL HTTP / REST Node.js Python Go
curl -X POST https://api-sms.ndemme.de/api/sms/send \
  -H "Authorization: Bearer cs_live_demo" \
  -H "Content-Type: application/json" \
  -d '{
    "receiver": "+491520123456",
    "body": "CurlSMS test! Direct from terminal mock."
  }'
API Gateway Online
CurlSMS 5G
CurlSMS Gateway now
CurlSMS test! Direct from terminal mock.
20:56
Saturday, May 23
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API Architecture Designed for Scale

Zero legacy bloated protocols. Minimal latency, high availability pipelines.

REST Architecture

Pure, standards-based JSON API. Integration takes minutes with our pre-built SDKs or native raw HTTP queries.

Instant Webhooks

Receive millisecond payload updates of delivery reports, network operator codes, and billing statuses directly to your server.

No Contract

Absolutely no enterprise commitments. Top up, subscribe, cancel, or toggle auto-billing inside your clean developer panel instantly.

2-Minute Setup

Grab an API key, authenticate, and configure alerts. Zero sales calls, zero manual corporate vetting processes.

Simple, Predictable Pricing

Hobby Tier Most Popular
5€ / month

Perfect for home servers, Telegram/Discord fallback scripts, indie dashboard notifications, and side projects.

  • 300 free SMS included monthly (Germany)
  • Just 0,01€ per additional SMS (Germany)
  • Flat 0,80€ per SMS to any other country
  • Dedicated API Key & Webhook support
  • Community Discord support access
Subscribe via Stripe
CurlSMS

Welcome to CurlSMS

Sign in securely via Discord to instantly access your credentials, billing, and API sandbox console.

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Subscription

CurlSMS Hobby Tier

Monthly Tier Fee 5,00 €
Included Credits (300 SMS) FREE
Total Due Today 5,00 €
AES-256 Stripe Encrypted Gateway

Cancel anytime in one-click via your Developer Dashboard settings.

Payment Information

Welcome back, Developer!

Your high-speed API endpoints are fully active. Ready to route deliveries.

API GATEWAY: 200 OK

Production API Key

Use this secret key to authenticate your server header with `Authorization: Bearer `.

cs_live_••••••••••••3a9b
Free German SMS Used
142 / 300
47.3% consumed 158 remaining
Current Extra Balance
0,00 € accrued
Charges accumulate only when monthly limits are exceeded or international SMS are routed.
API Success Rate
99.8 %
Measured on 418 API routing operations in the current billing cycle.

Dashboard Sandbox Trigger

Quickly trigger a simulated SMS call to test logs and webhooks updates instantly.

Developer Activity Logs

Real-time auditing of user actions, portal navigations, sandbox triggers, and credential operations.

Timestamp Action Event Event Details
Loading developer activity logs...
Current Subscription

Hobby Tier Plan (5€/mo)

Spend Safety Cap Limit

Control billing threshold overrides. Prevents infinite looping scripts from causing huge accidental bills.

15,00 €
Max monthly threshold
5,00 € (Min tier fee) 50,00 € 100,00 €
Usage Projection Matrix Safe Overruns Enabled

Based on your threshold configuration limit of 15,00 €:

  • Allows routing up to 1.300 additional German SMS in the cycle
  • Allows routing up to 12 International SMS in the cycle
  • API routes will return 402 Payment Required immediately if the threshold is breached.