HCNSec: Free AI Model Platform for Agentic Coding

Looking for a free way to power AI coding agents? HCNSec is a Chinese AI API platform that provides access to a wide range of large language models with free starter credits, making it useful for agentic coding workflows, code reviews, and everyday development tasks.

After signing up (the interface is primarily in Chinese), new users typically receive around 2,000 credits. You can generate API tokens with flexible settings—expiration periods, model restrictions, IP controls, and more. The platform supports an OpenAI-compatible endpoint, so it integrates easily with popular coding tools and agents such as Kilo Code, Continue, OpenCode, and similar VS Code extensions via a custom provider.

Available models include strong coding options like DeepSeek V4 Flash, GLM variants, Qwen, Minimax, and others, plus image, video, and audio models. In practice, you add the base URL (commonly something like api.hcnc.cn/v1), paste your API key, load the desired models, and start prompting.

A typical use case is running a project-level code review: the model scans your codebase and returns structured suggestions covering Python/TypeScript improvements, testing, documentation, error handling, validation, and critical issues. While the free tier can be slower than paid access (a common limitation of free gateways), sticking to lighter models keeps things usable for smaller tasks and experiments.

HCNSec offers a practical free entry point for developers who want to test agentic coding without immediate costs. Watch the full video for the complete sign-up process, token setup, VS Code integration steps, and live coding demo.