tokencrush-langchain 0.1.0

LangChain Runnable client for TokenCrush prompt optimization API (/v1/crush)

tokencrush-langchain (Python)

LangChain-compatible Python client for TokenCrush prompt optimization API.

• TokenCrushClient: thin HTTP client for POST /v1/crush
• RunnableTokenCrush: a Runnable that accepts a prompt and returns the optimization result

Install

pip install tokencrush-langchain

Usage

from tokencrush_langchain import TokenCrushClient, RunnableTokenCrush

client = TokenCrushClient(api_key="YOUR_API_KEY")
res = client.crush({"prompt": "Summarize the following document ..."})
print(res.optimized_prompt)

crush = RunnableTokenCrush(api_key="YOUR_API_KEY")
result = crush.invoke("Rewrite this prompt to be concise while preserving meaning ...")
print(result.optimized_prompt)

API Contract

POST /v1/crush with JSON body { "prompt": string } and Authorization: Bearer <api key>.

Successful response shape:

{
  "optimized_prompt": "Optimized version of your prompt",
  "input_tokens": 10,
  "output_tokens": 6,
  "percentage_reduction": 40
}

Notes:

• Only prompts with more than 20 tokens are optimized.
• If similarity is below 80%, the original prompt is returned.
• API may temporarily disable optimization for keys with poor performance.

Options

• base_url: override API base (default https://api.tokencrush.ai)
• fallback_to_input (Runnable): if API fails, return original prompt with 0% reduction

License

MIT