nthlayer-common 0.1.2

Shared utilities for the NthLayer ecosystem

nthlayer-common

Shared utilities for the NthLayer ecosystem. Model-agnostic LLM interface — one function, any provider.

Install

pip install nthlayer-common

Usage

from nthlayer_common import llm_call

result = llm_call(
    system="You are a triage agent...",
    user="Evaluate this incident...",
)
print(result.text)

Provider support

Two API formats cover the entire market:

Provider	Model format	API
Anthropic	anthropic/claude-sonnet-4-20250514	Messages API
OpenAI	openai/gpt-4o	Chat Completions
Ollama	ollama/llama3.1	Chat Completions
Azure	azure/my-deployment	Chat Completions
Together	together/meta-llama/Llama-3-70b	Chat Completions
Groq	groq/llama-3.1-70b-versatile	Chat Completions
Mistral	mistral/mistral-large-latest	Chat Completions
vLLM	vllm/my-model	Chat Completions
LM Studio	lmstudio/my-model	Chat Completions

Configuration

NTHLAYER_MODEL="anthropic/claude-sonnet-4-20250514"   # default
NTHLAYER_LLM_TIMEOUT="60"                              # seconds
ANTHROPIC_API_KEY="sk-ant-..."                         # for anthropic/* models
OPENAI_API_KEY="sk-..."                                # for openai/*, together/*, groq/*, etc.
OPENAI_API_BASE="http://localhost:11434/v1"            # override endpoint URL

Also includes

• strip_markdown_fences(text) — clean LLM response parsing
• clamp(value, low=0.0, high=1.0) — value clamping utility
• LLMResponse — dataclass with text, model, provider, input_tokens, output_tokens
• LLMError — structured error with provider, model, cause context

No third-party LLM libraries

One dependency: httpx. No LiteLLM, no SDKs. Raw HTTP calls to provider APIs.

License

Apache 2.0