inferspect-sdk 0.2.1

Lightweight Python SDK for capturing LLM inference, tool execution, and application logs with client-side PII redaction.

inferspect-sdk

Lightweight Python SDK for capturing LLM inference logs, tool executions, and application logs — with client-side PII redaction so sensitive data never leaves your process unredacted.

Auto-instruments raw OpenAI / Anthropic / Google Gemini clients, plus framework integrations for LangChain and LlamaIndex. Sync and async APIs. No telemetry vendor lock-in — point it at any HTTPS ingestion endpoint that accepts the wire format.

Install

# Core only (no framework deps pulled in)
pip install inferspect-sdk

# With your stack:
pip install "inferspect-sdk[openai]"
pip install "inferspect-sdk[anthropic]"
pip install "inferspect-sdk[google]"
pip install "inferspect-sdk[langchain]"
pip install "inferspect-sdk[llamaindex]"

# Everything
pip install "inferspect-sdk[all]"

Quickstart — raw OpenAI

import asyncio
from openai import AsyncOpenAI
from chatbot_sdk import InferenceLogger
from chatbot_sdk.integrations.openai import instrument

async def main():
    client = AsyncOpenAI()
    logger = InferenceLogger.from_env()   # reads CHATBOT_SDK_URL + CHATBOT_SDK_KEY
    instrument(client, logger=logger)     # ← one-line monkey-patch; idempotent

    async with logger:
        resp = await client.chat.completions.create(
            model="gpt-4o-mini",
            messages=[{"role": "user", "content": "Say hello"}],
        )
        print(resp.choices[0].message.content)
        # Every call is auto-traced — no per-call wrapping.

asyncio.run(main())

Set two env vars before running:

export CHATBOT_SDK_URL=https://your-ingestion-host/v1/logs
export CHATBOT_SDK_KEY=your-sdk-api-key

Quickstart — LangChain

from chatbot_sdk import InferenceLogger
from chatbot_sdk.integrations.langchain import SDKCallback

logger = InferenceLogger.from_env()
await logger.start()

callback = SDKCallback(sdk=logger)
result = await agent.ainvoke(
    {"messages": msgs},
    config={"callbacks": [callback]},   # every LLM + tool call inside is auto-traced
)

Quickstart — sync (Flask / Django / notebooks)

from chatbot_sdk import SyncInferenceLogger

logger = SyncInferenceLogger.from_env()
with logger:
    with logger.inference(provider="openai", model="gpt-4o-mini") as span:
        resp = client.chat.completions.create(...)
        span.set_response(resp)

What gets logged

Per inference: provider, model, prompt_tokens, completion_tokens, latency_ms, ttft_ms (streaming), status (ok/error/cancelled/timeout), finish_reason, tool_calls_summary, input_preview, output_preview, plus per-request conversation_id / session_id / user_id if set via logger.context(...).

Per tool call: tool_name, args_preview, result_preview, latency_ms, status + error fields, linked to parent inference via parent_inference_request_id.

PII redaction

Runs inside your process before any event leaves over the network. Default recognizers: email, phone (E.164 + NA), credit card (Luhn-validated), US SSN, IBAN, IPv4, AWS access keys. Configurable via InferenceLogger(pii_redact=True, pii_recognizers=[...]).

Zero third-party deps for redaction (pure regex). Server-side PII can run as defense-in-depth if your ingestion service supports it.

Provider matrix

Library	Integration	Pattern
openai (AsyncOpenAI)	chatbot_sdk.integrations.openai.instrument(client, logger=...)	monkey-patch
anthropic (AsyncAnthropic)	chatbot_sdk.integrations.anthropic.instrument(client, logger=...)	monkey-patch
google-genai (AsyncClient)	chatbot_sdk.integrations.google.instrument(client, logger=...)	monkey-patch
langchain-core	chatbot_sdk.integrations.langchain.SDKCallback(sdk=logger)	callback handler
llama-index-core	chatbot_sdk.integrations.llamaindex.LlamaIndexCallback(logger)	callback handler
Anything else	async with logger.inference(...) as span:	manual context manager

Per-request context

Use logger.context(...) to propagate per-request IDs through nested LLM/tool calls without threading them by hand:

async with logger.context(conversation_id=conv_id, user_id=user_id):
    resp = await client.chat.completions.create(...)   # auto-traced, IDs stamped on the log

Links

• Source: https://github.com/itsdun1/inferspect
• Issues: https://github.com/itsdun1/inferspect/issues
• License: MIT