APIs & SDKs
Ha Tang
Sell, support and get paid in one place, with AI doing the repetitive part
Platform for customer support, email, payments and invoicing with AI assistance, built on Sota Labs infrastructure for Vietnamese businesses.
Overview
The Ha Tang homepage
Ha Tang is a Vietnamese business platform operated by Sota Labs that combines customer support, email delivery, payments and e-invoicing. The service unifies messaging from Zalo, Facebook, Instagram, TikTok, WhatsApp, Telegram, X, LINE and website chat in a single inbox, with an AI assistant that answers from custom knowledge and drafts orders.
The platform includes a Resend-compatible email API for sending from custom domains, VietQR bank transfer payments with automatic matching to orders, and e-invoice (hóa đơn điện tử) generation. Sota Labs, which operates Ha Tang, is a 1,300-person engineering company founded in 2015 that has built software for 25 countries and holds SOC 2 Type II, CMMI DEV ML 3, and ISO 9001 certifications.
Developers can integrate via REST API, Node.js, Python, Flutter, iOS and Android SDKs, or through a Model Context Protocol (MCP) server for AI coding agents like Claude Code, Cursor and VS Code.
Capabilities
- Unified inbox for Zalo, Facebook, Instagram, TikTok, WhatsApp, Telegram, X, LINE and website chat
- AI assistant that answers from custom knowledge and drafts orders
- Resend-compatible email API for custom domains
- VietQR bank transfer payments with automatic order matching
- Automated e-invoice (hóa đơn điện tử) generation
- MCP server for AI coding agents
- Webhook support for integrations
Follow Ha Tang to get an email when they post a milestone, ship a new product or add a demo video.
Ha Tang fact sheet
| Community votes | 0 |
|---|---|
| Founded | 2015 |
| Stage | Established |
| Based in | Hà Nội, Vietnam |
| Website | hatang.dev |
Ha Tang metrics
Vendor metrics for hatang.dev: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.
- Domain Rating
- 3
- no change since last check
- Trust Flow
- 0
- no change since last check
- Citation Flow
- 15
- no change since last check
- Referring domains
- 3
- no change since last check
- External backlinks
- 3
- no change since last check
Vendor Domain Rating (Ahrefs) checked 6 Nov 2026, spec changed 3 Nov 2026. Vendor Majestic data checked 3 Nov 2026, spec changed 3 Nov 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Ha Tang vendor domain
Open the vendor record
We read this from the registry's RDAP record on 5 Nov 2026, 13:43 UTC.
- Domain age
- 1 month
- Registered
- Expires
- Registrar
- Namecheap Inc.
- DNSSEC
- Not signed
Ha Tang post-launch report
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 3 to 3 no change since launch 3 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 0 first measured 3 Nov 2026 |
| Referring domains (Majestic) | 3 first measured 3 Nov 2026 |
Day 2 since launch. Next receipt: day 30, 3 Dec 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.
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Buyer questions
What is the MCP server for Ha Tang?
@hatang/mcp is a Model Context Protocol server that connects AI coding agents like Claude Code, Cursor, VS Code and Windsurf to Ha Tang. The agent can search the docs, read any page as Markdown, and call the API to send emails, check DNS records, create VietQR payments, read conversations or add knowledge for the AI assistant.
What is the company behind Ha Tang?
Ha Tang is operated by Sota Labs Technology JSC (Công ty Cổ phần Công nghệ Sota Labs), a products unit of SotaTek. Sota Labs was founded on 11 August 2015 and employs over 1,300 Vietnamese engineers, having built software for 25 countries and holding SOC 2 Type II, CMMI DEV ML 3, and ISO 9001 certifications.
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Ha Tang has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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