Question 1

What is SMS-24?

Accepted Answer

SMS-24 is a multi-tenant SaaS that lets every user run their own AI workers across messaging (Telegram, WhatsApp), voice (real-time Telegram calls via Pipecat), and emulated Android devices. It also exposes real-time phone-reputation antifraud — a 50-millisecond verdict on any phone number against a graph of public SMS-receive numbers spanning 55+ countries.

Question 2

What does an AI Worker do?

Accepted Answer

You create a Persona with a name, role, system prompt, biography, and knowledge base (free text plus uploaded PDF/DOCX/TXT/MD files). You link it to your Telegram and WhatsApp accounts. Inbound messages get auto-replied by the LLM you picked (OpenAI / Anthropic Claude / Google Gemini), using your own API key. You can also link a voice agent so the persona answers Telegram voice calls in real-time, and link device-action templates that the LLM can call as tools mid-conversation.

Question 3

Do I bring my own LLM API keys?

Accepted Answer

Yes. SMS-24 is BYOK — you paste your own OpenAI, Anthropic, Google Gemini, Deepgram, Cartesia, and ElevenLabs keys in Settings. All keys are Fernet-encrypted at rest. Every LLM, STT, and TTS call from your personas bills your own account directly. We do not markup model usage.

Question 4

What is persona function-calling?

Accepted Answer

When you link Android device-action templates to a persona, those actions are exposed to the LLM as OpenAI-compatible tools. Mid-conversation the model can decide to call them — for example send_whatsapp_text(phone, body), send_telegram_text(username, body), or install_apk_url(url). The action runs against your Android device(s) and the result is fed back into the conversation.

Question 5

Can I route traffic through specific countries?

Accepted Answer

Yes. The operator runs a ProtonVPN orchestrator that spawns per-country VPN tunnels and exposes each tunnel as a SOCKS5 and HTTP proxy on the internal network. Your messenger accounts, voice agent, and emulated Android devices can all be pinned to a country — the matching proxy is auto-selected from the pool.

Question 6

What is the phone antifraud product?

Accepted Answer

A REST API that returns a risk verdict on any phone in roughly 50 milliseconds. It draws on 12 orthogonal signals — public-board appearances, OTP collisions across services, fraud-ring cluster membership, carrier line-type, geo inconsistency and more. Used to block bot signups, fake KYC, and airdrop farms before you send an OTP.

Question 7

How is data isolated between tenants?

Accepted Answer

Every user-scoped entity — personas, knowledge-base files, messenger accounts, Android devices, voice agents, service keys, action templates, action runs — carries an owner_user_id NOT NULL and is filtered at the SQL level by the authenticated user's id. Cross-tenant access returns HTTP 404, not 403, so the existence of other users' resources is never telegraphed. Secrets are Fernet-encrypted at rest.

Question 8

Is SMS-24 GDPR compliant?

Accepted Answer

SMS-24 only ingests SMS messages and phone numbers that are already published on public SMS-receive websites. We never receive or store private SMS content from any user's phone. User-side data (personas, KB files, linked accounts, action runs) lives in your isolated tenant and can be exported or deleted on request. Billing data lives in Stripe.

Question 9

What is the API rate limit?

Accepted Answer

Per-second rate limits scale with subscription tier: 2 requests per second on the daily plan, 10 on monthly, 30 on yearly. Limits apply per active API key. 429 responses include a Retry-After header.

Question 10

How do I cancel my subscription?

Accepted Answer

Go to Billing in your account, click Cancel, and confirm with the SMS code we send to your verified phone. Cancellation takes effect at the end of your current billing period — access continues until then.

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