Your SMS Gateway server URL, e.g. https://sms.yourdomain.com/api/3rdparty/v1 (cloud: https://api.sms-gate.app/3rdparty/v1)
Your SMS Gateway server account username
Your SMS Gateway server account password
Pause between each API call to avoid throttling
User Signups
Set 0 to close signups. Only the first account can change this.
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Usage Guide
Create your account — on the first visit the app asks you to create the first account (username + password). More users can sign up only when the owner allows it.
Log in — use your username and password to reach the main page.
Open Settings — click the Settings tab.
API Endpoint — your SMS Gateway server URL. Private servers often end in /api/3rdparty/v1, cloud is https://api.sms-gate.app/3rdparty/v1.
Gateway credentials — your SMS Gateway server account username and password (the same ones the official dashboard asks for).
Optional fields — SIM Number: Auto, or force SIM 1/2/3. Delay: 800 ms is a safe default.
User signups — (first account only) set how many additional users may sign up; 0 closes signups.
Save — click Save to Browser; settings are stored in localStorage and reloaded automatically.
Prepare your phone — Android device online in the SMS Gateway app, on Wi-Fi and charger, has SMS signal, battery optimization disabled.
Prepare your file — Single mode: a .txt with one phone number per line (blank lines and lines starting with # or // are ignored). Personalized mode: a .csv with no header row — column 1 phone, column 2 message, split at the first comma. Use the Download sample buttons in the Send tab to see the exact format.
Choose mode — in the Send tab pick Single Message (same text to all numbers) or Personalized (different text per number).
Upload — drag & drop or click the upload area; a count badge and a preview table (first 200 rows) appear for verification.
Send — click Send Messages; you get a progress bar, live Sent / Failed / Pending stats and a per-message log.
Stop if needed — Stop aborts pending messages; already-sent ones cannot be recalled.
Review results — green check = sent (message ID shown); red X = failed (error detail shown).
Next batch — click Clear Results to reset the log before a new batch.
Compose & Send
This same message will be sent to every number in your file.