shutapp 1.1.0

Model-agnostic PII firewall for LLM apps. Scan, redact, rescan, verify.

shutapp — the model-agnostic PII firewall

Three lines. Any LLM.

from shutapp import Shutapp

g = Shutapp(api_key="shu_live_...")
safe, session = g.scan("My email is [e-mail]")

# ...send `safe` to any LLM using your own provider key...

final = g.unscan(response_text, session)

Or the 2-line auto-wrap for OpenAI / Anthropic:

from openai import OpenAI
from shutapp import guard
client = guard(OpenAI())          # every .chat.completions.create call is now protected

from anthropic import Anthropic
from shutapp import guard
client = guard(Anthropic())       # every .messages.create call is now protected

What it does

1. Sends your prompt text to the Shutapp API, which replaces PII with reversible placeholders like [EMAIL_ADDRESS_1], [PHONE_NUMBER_1], [API_KEY_1].
2. You send the redacted text to any LLM using your own key. Shutapp never sees your LLM key and never sees the response.
3. You call unscan(...) to restore the original values in the LLM's response.

After every scan Shutapp prints a one-line receipt to your terminal:

[shutapp] scan ok · 12ms · EMAIL_ADDRESS x1, PHONE_NUMBER x1 · rcpt_8f3a2b

Install (from PyPI, later)

pip install shutapp

Install (from this monorepo, right now)

pip install -e ./packages/sdk-python

Config

Shutapp(api_key, base_url, receipts, receipt_format, timeout)

• receipts: "stderr" (default), "stdout", "silent", or a callable fn(receipt_dict) for custom logging.
• receipt_format: "line" or "block".
• base_url: override for self-hosted Shutapp (e.g. http://localhost:8080).