Trading API
Place buy/sell orders, check portfolios, view statements — all trading operations via REST & real-time WebSocket.
Connect to Vietnam's capital market with API power
Integrate SSI's trading, market data, and portfolio management services into your application — fast, secure, and reliable.
99.9%Uptime SLA
<50msAvg. latency
1000+Integration partners
Platform for building FinTech solutions
A complete API suite to shorten your time-to-market.
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Market Data
Stock prices, order books, VN30/HNX30 board data and historical data – high-throughput, sub-10ms latency.
Professional SDK
Ready-to-use SDKs for Python, Node.js and Java with full intellisense, built-in OAuth 2.0 and automatic retry.
Sample App Library
Rich sample library: trading bots, analytics dashboards, mobile apps — tailored for professional investors.
What customers say about SSI FastConnect API
Real feedback from engineering teams and investors using FastConnect in production.
"The FastConnect API has been a game-changer for my trading bot system. The real-time WebSocket streaming allows the bot to react within milliseconds to market movements. The async architecture helps handle thousands of signals concurrently without bottlenecks. Placing, modifying, canceling orders — all through API, no need to open the app. It's an indispensable tool for algorithmic trading in the Vietnamese market."
"We integrated FastConnect API into our trading system in just a few hours. The SDK supports both Python and Go, with comprehensive sample docs covering everything from authentication, OHLC data queries, order placement to real-time WebSocket. This is the best stock trading SDK our team has ever worked with."
"FastConnect's WebSocket streaming is extremely stable. Real-time market data, order placement/cancellation via API all respond in under milliseconds. The SDK provides built-in token authentication and auto-refresh — allowing us to focus on trading logic instead of connection infrastructure."
Trusted by partners integrating SSI FastConnect API
Dozens of FinTech companies and financial institutions are running FastConnect API in production.
DCDragon Capital
QVNQuant.vn
CESCES
ITPITP
ATCAlgotrade Corp
VFTVFTrade
BLSBlackstars
DKLDKL Capital
FastConnect Developer Community
Join thousands of developers and investors building the future of digital trading.
Zalo Community
Quick Q&A, API update announcements and experience sharing.
Tech Blog
In-depth articles on architecture, best practices and real case studies.
YouTube Channel
Tutorial videos, live webinars and new product demos.
GitHub
Sample code, open-source SDKs and templates maintained by SSI.