DeepSeek API in TypeScript: secure integration and honest model evaluation for code
For months I was convinced that integrating a new model into a TypeScript pipeline was the hard part. Then I realized it never was. The hard part is deciding whether that model is actually worth it for what you need — without buying the hype or trashing it because Twitter moved on. I learned that lesson again with DeepSeek.
My thesis before starting: DeepSeek's API is compatible with the OpenAI SDK, which makes integration almost trivial in any existing TypeScript pipeline. The real differentiator isn't the plumbing — it's the model. DeepSeek-Coder is competitive for code tasks, but the decision criterion depends on your specific use case, not on Twitter enthusiasm.
What the official docs say — and what they don't
The official DeepSeek documentation has two facts that completely change the integration conversation:
