Is HoundShield CMMC Level 2 compliant?

Yes. HoundShield is local-only — all AI prompt scanning happens on your infrastructure. No CUI ever leaves your control boundary, which satisfies NIST 800-171 control 3.13.1 and supports CMMC Level 2 certification. We generate PDF evidence reports that C3PAO assessors can review on-site.

Can my employees still use ChatGPT with HoundShield?

Yes. HoundShield works as a transparent proxy. Employees point their AI tools at your HoundShield endpoint instead of directly at the AI API. Prompts that don't contain CUI/PHI/PII pass through normally. Flagged content is blocked and logged with a tamper-evident record.

How long does HoundShield take to set up?

Under 10 minutes for most organizations. It's a single URL change — point your AI tools at your HoundShield endpoint instead of the cloud AI API. Docker deployment takes 3 commands. No agent installation on individual machines required.

Does HoundShield work with ChatGPT, Claude, and other AI tools?

Yes. HoundShield works with any AI tool that uses an OpenAI-compatible API — including ChatGPT, Claude, Gemini, Copilot, and open-source models. It acts as a drop-in proxy at the network level.

Quickstart — 15 minutes to C3PAO-ready

Deploy HoundShield in 15 minutes.

By the end of this guide your team's AI usage will be intercepted, classified, and generating an audit trail your C3PAO assessor can verify.

No firewall rulesNo network changesWorks with any AI SDK

Prerequisites

Docker Desktop installed and running — download here
HoundShield license key — get one free
Your AI provider API key (OpenAI, Anthropic, Google, or OpenRouter)

Run the installer

~2 min

One curl command pulls the Docker image, starts the proxy, and confirms it's running. Requires Docker Desktop.

bash

curl -sSL https://houndshield.com/install | bash

Or non-interactive: HOUNDSHIELD_LICENSE_KEY=<key> UPSTREAM_API_KEY=<key> bash install.sh -y

Change one environment variable

~30 sec

Replace your AI provider's base URL with the proxy. Every SDK that speaks OpenAI-compatible APIs works — ChatGPT, Copilot, Claude, Gemini.

bash

# .env or your shell profile
OPENAI_BASE_URL=http://localhost:8080/v1
# ANTHROPIC_BASE_URL=http://localhost:8080/v1  # Claude
# GOOGLE_BASE_URL=http://localhost:8080/v1      # Gemini

Test: send a CUI prompt

~30 sec

Verify the proxy is intercepting. This prompt contains a DoD contract number — it should be BLOCKED.

bash

curl -X POST http://localhost:8080/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role":"user","content":"W911NF-23-C-0001 status?"}]
  }'

Expected response: { "error": { "code": "content_policy_violation", "message": "BLOCKED — CUI detected" } }

Export your C3PAO audit report

~30 sec

Download a PDF that documents every AI prompt your team sent, which CMMC controls were triggered, and your SPRS impact. Hand this to your C3PAO.

bash

# From the dashboard — or via API:
curl "https://houndshield.com/api/reports/generate?format=pdf&from=2026-04-01T00:00:00Z&to=2026-04-30T23:59:59Z" \
  -H "Authorization: Bearer $HOUNDSHIELD_API_KEY" \
  --output cmmc-audit-report.pdf

Works with every AI provider

OpenAI / ChatGPT

OPENAI_BASE_URL=http://localhost:8080/v1

Anthropic / Claude

ANTHROPIC_BASE_URL=http://localhost:8080/v1

Google / Gemini

GOOGLE_BASE_URL=http://localhost:8080/v1

LangChainPython

openai = OpenAI(base_url="http://localhost:8080/v1")

LlamaIndexPython

llm = OpenAI(api_base='http://localhost:8080/v1')

OpenRouter800+ models

OPENROUTER_BASE_URL=http://localhost:8080/v1

You're protected.

Your C3PAO assessment PDF is one click away in the dashboard. Every AI prompt your team sends is now scanned, logged, and audit-ready.

Open Dashboard Download C3PAO PDF

Quickstart — 15 minutes to C3PAO-ready

Deploy HoundShield in 15 minutes.

By the end of this guide your team's AI usage will be intercepted, classified, and generating an audit trail your C3PAO assessor can verify.

No firewall rulesNo network changesWorks with any AI SDK

Prerequisites

Docker Desktop installed and running — download here
HoundShield license key — get one free
Your AI provider API key (OpenAI, Anthropic, Google, or OpenRouter)

Run the installer

~2 min

One curl command pulls the Docker image, starts the proxy, and confirms it's running. Requires Docker Desktop.

bash

curl -sSL https://houndshield.com/install | bash

Or non-interactive: HOUNDSHIELD_LICENSE_KEY=<key> UPSTREAM_API_KEY=<key> bash install.sh -y

Change one environment variable

~30 sec

Replace your AI provider's base URL with the proxy. Every SDK that speaks OpenAI-compatible APIs works — ChatGPT, Copilot, Claude, Gemini.

bash

# .env or your shell profile
OPENAI_BASE_URL=http://localhost:8080/v1
# ANTHROPIC_BASE_URL=http://localhost:8080/v1  # Claude
# GOOGLE_BASE_URL=http://localhost:8080/v1      # Gemini

Test: send a CUI prompt

~30 sec

Verify the proxy is intercepting. This prompt contains a DoD contract number — it should be BLOCKED.

bash

curl -X POST http://localhost:8080/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role":"user","content":"W911NF-23-C-0001 status?"}]
  }'

Expected response: { "error": { "code": "content_policy_violation", "message": "BLOCKED — CUI detected" } }

Export your C3PAO audit report

~30 sec

Download a PDF that documents every AI prompt your team sent, which CMMC controls were triggered, and your SPRS impact. Hand this to your C3PAO.

bash

# From the dashboard — or via API:
curl "https://houndshield.com/api/reports/generate?format=pdf&from=2026-04-01T00:00:00Z&to=2026-04-30T23:59:59Z" \
  -H "Authorization: Bearer $HOUNDSHIELD_API_KEY" \
  --output cmmc-audit-report.pdf

Works with every AI provider

OpenAI / ChatGPT

OPENAI_BASE_URL=http://localhost:8080/v1

Anthropic / Claude

ANTHROPIC_BASE_URL=http://localhost:8080/v1

Google / Gemini

GOOGLE_BASE_URL=http://localhost:8080/v1

LangChainPython

openai = OpenAI(base_url="http://localhost:8080/v1")

LlamaIndexPython

llm = OpenAI(api_base='http://localhost:8080/v1')

OpenRouter800+ models

OPENROUTER_BASE_URL=http://localhost:8080/v1

You're protected.

Your C3PAO assessment PDF is one click away in the dashboard. Every AI prompt your team sends is now scanned, logged, and audit-ready.

Open Dashboard Download C3PAO PDF