Just discovered an awesome free LLM API platform—TokenRhythm (基元律动). It's a domestic LLM aggregation gateway that supports both OpenAI and Anthropic protocols. New users get ¥68 in token credits just by registering through an invitation link.
How to get ¥68 worth of free LLM API access? It's super simple—just click the link below and sign up with your phone number. Register here , no credit card needed, valid for 30 days.
Currently, TokenRhythm supports some seriously impressive models including deepseek-v4-pro, deepseek-v4-flash-07-31, kimi-k2.7-code, minimax-m2.7, and qwen3.8-max—all top-ranking Chinese LLMs. They support multiple protocols including OpenAI, Anthropic, and Embeddings.
Once you grab your API key, here's the thing: TokenRhythm's gateway only implements the standard Chat Completions API, not the Responses API. So if you try to configure it directly in Claude or Codex with just the URL and API key, it won't work—you'll get this error:
No worries though—you can use CPA for conversion. Check out this reference guide: set the Base URL to https://tokenrhythm.studio/v1
Once configured, you can use it directly in Codex. Check out the result below:
Since the platform is currently in its promotion phase, this limited-time offer could end at any moment—so you better act fast! Register here . No credit card needed, so feel free to grab it and use it while it's available.
