Alpaca Rebuilds Its Node.js SDK with Broader API Coverage and Launches Its First Supported Java SDK
Blog post from Alpaca
Alpaca has released Node.js SDK 4.0.1 and Java SDK 0.1.3, expanding typed access to its Trading, Market Data, and Broker APIs through a shared architecture that combines OpenAPI-generated REST clients and models with handwritten helpers for workflows, pagination, request controls, errors, and real-time connections. Node.js 4.x is a breaking TypeScript-based redesign requiring migration from 3.x imports, client construction, and method paths, but adds dedicated trading and marketData namespaces, broader coverage for options, corporate actions, crypto funding, locates, tokenization, account-activity streams, indices, forex, fixed income, auctions, and metadata, along with typed errors, timeouts, rate limiting, safe-method retries, reduced dependencies, and Node.js 20+ package support. Java 0.1.3, for Java 17 and later, introduces generated REST clients for all three API areas, WebSocket support for trading updates and market data, Server-Sent Events for Broker trade events, configurable HTTP behavior, pagination, optional idempotent retries, and decimal-preserving WebSocket models. Both SDKs include documentation and AI-assisted development resources, while Alpaca emphasizes that securities, options, fractional shares, and cryptocurrency trading involve substantial risks.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| Real-time | 5 | 1,106 | 270 | 109 | -81% |
| Multi-agent systems | 3 | 101 | 30 | 20 | -80% |
| MCP | 2 | 1,562 | 186 | 99 | -80% |
| AI Agents | 1 | 1,180 | 266 | 113 | -80% |
| LLM | 1 | 1,189 | 251 | 109 | -83% |
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