# Allotropic SMS

> Enterprise Bulk & Transactional SMS Platform in Tanzania and East Africa.
> High-throughput messaging engine, instant 2FA OTP codes, TCRA-compliant branded sender IDs, and developer JSON REST API.

## Organization & Local Business Entity
- Legal Name: Allotropic Ltd (incorporated in Tanzania)
- Headquarters: Mbezi Beach Shule, Dar es Salaam, Tanzania
- Geolocation Coordinates: Latitude -6.73, Longitude 39.22
- Official Phone & WhatsApp: +255 723 313 356
- Official Email: hello@allotropicltd.com (Support: support@allotropicltd.com)
- Instagram: @allotropic_ltd
- Business Hours: Monday to Friday, 08:00-18:00 EAT
- Service Area: Tanzania, Kenya, Uganda, Rwanda, East Africa
- Currencies: TZS (Tanzanian Shilling), USD, KES, UGX
- Supported Carriers: Vodacom Tanzania, Tigo Tanzania, Airtel Tanzania, Halotel, TTCL, Safaricom (Kenya), MTN (Uganda)
- Regulatory Compliance: TCRA (Tanzania Communications Regulatory Authority) certified sender IDs

## Core Messaging Services Catalog (9 PDPs)
1. Bulk SMS Gateway & Messaging API: https://sms.allotropicltd.com/services/bulk-sms-gateway
2. OTP & 2FA SMS Verification API: https://sms.allotropicltd.com/services/otp-2fa-verification
3. Transactional SMS & Banking Alerts: https://sms.allotropicltd.com/services/transactional-sms
4. Excel & Spreadsheet Bulk SMS Dispatcher: https://sms.allotropicltd.com/services/excel-bulk-sender
5. Branded Alphanumeric Sender IDs (TCRA Compliant): https://sms.allotropicltd.com/services/branded-sender-id
6. Promotional & Marketing SMS Broadcasts: https://sms.allotropicltd.com/services/promotional-marketing-sms
7. Multi-Network Tanzanian & East African Telecom Routing: https://sms.allotropicltd.com/services/multi-network-routing
8. Two-Way SMS & Inbound Webhooks: https://sms.allotropicltd.com/services/two-way-sms-webhooks
9. Enterprise Scheduled SMS & DND Campaign Management: https://sms.allotropicltd.com/services/scheduled-campaigns

## Developer Docs & Resources
- [Full Services Catalog](https://sms.allotropicltd.com/services): Overview of all 9 enterprise messaging products
- [API Reference (Markdown)](https://sms.allotropicltd.com/docs.md): authentication, endpoints, numbers, billing, statuses, scheduling, idempotency, rate limits, webhooks, errors
- [API Reference (HTML)](https://sms.allotropicltd.com/docs): Interactive web reference
- [Contact & Location](https://sms.allotropicltd.com/contact): Dar es Salaam office, inquiry form, and telephone support
- [XML Sitemap](https://sms.allotropicltd.com/sitemap.xml): Full search engine crawl list

## API Endpoints
- Base URL: https://sms.allotropicltd.com/api/public/v1
- POST /sms/send: Send SMS: Send the same message to one or many numbers (up to 10,000). `to` accepts a string, a comma-separated string or an array.
- POST /sms/bulk: Send personalised bulk: Different text per recipient in one request (up to 10,000 items).
- GET /sms/{id}: Message or campaign status: Pass a message ID or a campaign ID returned by a send call. Campaigns include up to 1,000 messages.
- GET /reports: Reports: Paginated message list, newest first.
- GET /balance: Balance: Remaining SMS credits.
- GET /sender-ids: Sender IDs: Active sender IDs approved for your account.