Java SDK for OpenAI that babysits your API keys and counts tokens

What it does chatgpt-java is a community-maintained Java SDK for OpenAI’s full REST surface—chat, images, audio, assistants, fine-tuning, embeddings, and moderation. It offers synchronous and streaming clients built on OkHttp, with builders for custom configuration. For Java teams, it is essentially a drop-in adapter that spares you from writing your own HTTP glue.

The interesting bit Most wrappers stop at mapping JSON, but this one adds production-minded guardrails: dynamic API-key rotation when a key is banned or expired, pluggable alerting hooks (DingTalk, Feishu, email, etc.—though you wire them yourself), and local token counting. That focus on key lifecycle management is unusual for a community library.

Key highlights

• Covers the entire OpenAI API, including GPT-4, GPT-3.5-Turbo, DALL-E 3, TTS, Whisper, and Assistants.
• Supports streaming via SSE and WebSocket, with a compatibility matrix for mini-programs, Android, iOS, and H5.
• Built-in token calculation and balance-query helpers.
• Interceptor-based key management: custom strategies for multi-key pools and automatic failover on invalid keys.
• Documentation and domestic-access proxy guidance are primarily in Chinese.

Caveats

• The project is community-maintained, so long-term stability and update cadence depend on the author’s availability.
• Alerting integrations for key failures require custom development; they are not turnkey.
• The README mixes Chinese and English, and the English documentation appears to lag behind.

Verdict Worth a look if you are running Java in production against OpenAI and want key-rotation logic without building it yourself. Skip it if you prefer official or language-agnostic HTTP clients, or if you need guaranteed enterprise support.