Intro

AI-SCRM is the reference implementation of the AI-SCS (AI Supply Chain Security) standard for securing AI infrastructure. It provides production-ready tools to document, sign, and validate AI system components—protecting against model backdooring, dataset poisoning, unauthorized tool activation, and supply chain attacks.

AI-SCRM is intended to:

• Auto-discover models, MCP servers, libraries, and prompts with one command
• Infer metadata for 100+ common model families automatically
• Sign and verify AI artifacts with Ed25519/RSA/ECDSA
• Continuously monitor for drift with configurable intervals
• Integrate easily with LangChain, FastAPI, and CI/CD pipelines
• Provide clear, actionable error messages
• Support production deployments with SIEM integration

Quick Start: One Command Setup

# Install with all features
pip install ai-scrm[all]

# Initialize everything (scan + template + keys + sign)
ai-scrm init

# View status
ai-scrm status

# Start continuous monitoring
ai-scrm monitor

That's it. In under 2 minutes, AI-SCRM will:

1. 🔍 Scan for models, MCP servers, libraries, and prompts
2. 🧠 Infer suppliers for known models (Llama, Mistral, GPT, etc.)
3. 📋 Generate a metadata template for items needing review
4. 🔑 Create signing keys and sign your ABOM
5. 📊 Start monitoring for drift

How AI-SCRM Works

Implementing AI supply chain security requires that your AI system becomes inventory-aware AND your runtime environment validates against the declared inventory. AI-SCRM automates both. Each Control Domain enforces the same core requirement:

An AI system may only execute components that are declared in its ABOM, cryptographically verified, and continuously validated at runtime.

The AI-SCRM Workflow

┌─────────────────────────────────────────────────────────────────┐
│                    AI-SCRM Workflow                             │
├─────────────────────────────────────────────────────────────────┤
│                                                                 │
│  [1] SCAN (Automatic)                                           │
│      └── Discovers models, MCP, libraries, prompts              │
│                                                                 │
│  [2] ENRICH (Review ~5 min)                                     │
│      └── Fill in TODOs for unknown suppliers                    │
│                                                                 │
│  [3] SIGN (Automatic)                                           │
│      └── Cryptographically sign the ABOM                        │
│                                                                 │
│  [4] MONITOR (Continuous)                                       │
│      ├── Hash checks (every 60s)                                │
│      ├── MCP heartbeat (every 5 min)                            │
│      ├── Full re-scan (every 30 min)                            │
│      └── On drift → RADE event → SIEM                           │
│                                                                 │
└─────────────────────────────────────────────────────────────────┘

Access is permitted only when artifacts are declared, signed, and verified.

Key Characteristics

Aspect	Scope
Asset coverage	Models, data, tools, MCP, agents, infra
Inventory format	CycloneDX 1.6 + AI-SCS extensions
Integrity	SHA-256 cryptographic hashes
Authenticity	Ed25519, RSA-PSS, ECDSA-P256 signatures
Validation	Continuous runtime drift detection
Integration	SIEM, SOAR, policy engines

Installation

# Basic installation
pip install ai-scrm

# With all features (signing, CLI, YAML support)
pip install ai-scrm[all]

Auto-Discovery

AI-SCRM automatically finds your AI components:

Component	How It's Discovered
Models	Scans directories for .safetensors, .gguf, .pt, .onnx files
MCP Servers	Parses Claude Desktop config, mcp.json, environment variables
Libraries	Reads pip list, requirements.txt, pyproject.toml
Prompts	Finds *.prompt, system_prompt*, *.jinja2 files

Smart Metadata Inference

AI-SCRM recognizes 100+ model families and automatically fills in:

# Automatically inferred from filename:
"llama-3-8b-instruct.safetensors" → supplier: Meta, type: fine-tuned, params: 8B
"mistral-7b-v0.1.gguf" → supplier: Mistral AI, architecture: mistral
"text-embedding-ada-002.onnx" → supplier: OpenAI, type: embedding
"claude-3-sonnet.bin" → supplier: Anthropic, family: Claude 3

Trust Boundary Classification

MCP servers are automatically classified based on endpoint:

Pattern	Trust Boundary
localhost:*	internal
127.0.0.1:*	internal
192.168.*, 10.*	internal
stdio://	internal
Everything else	external

Override with patterns in ai-scrm-metadata.yaml:

trust_boundaries:
  "*.internal.mycompany.com": internal
  "*": external

Continuous Monitoring

AI-SCRM monitors with three tiers:

Tier	Default Interval	What It Checks
Hash Check	60 seconds	File integrity of known components
MCP Heartbeat	5 minutes	MCP server availability
Full Scan	30 minutes	Discover new/removed components

from ai_scrm import Monitor

monitor = Monitor(
    abom_path="abom-signed.json",
    hash_check_interval=30,      # Faster checks
    mcp_heartbeat_interval=120,
    on_drift=lambda e: alert(e)  # Custom handler
)
monitor.start()

Basic Usage

from ai_scrm import ABOMBuilder, ABOM, Signer, Verifier, DriftDetector

# 1. Build ABOM with your AI components
builder = ABOMBuilder()
builder.add_model(
    name="llama-3-8b",
    version="1.0.0",
    hash_value="a1b2c3d4e5f6...",
    format="safetensors",
    supplier="Meta"
)
builder.add_mcp_server(
    name="filesystem-mcp",
    version="1.0.0",
    endpoint="http://localhost:3000",
    trust_boundary="internal",
    capabilities=["read_file", "write_file"]
)
abom = builder.finalize(system_name="my-ai-assistant")

# 2. Sign the ABOM
signer = Signer.generate("ed25519")
signer.sign(abom)
abom.to_file("abom-signed.json")

# 3. Verify at runtime
abom = ABOM.from_file("abom-signed.json")
verifier = Verifier(reject_unsigned=True)
verifier.verify(abom)

# 4. Detect drift
detector = DriftDetector(abom)
event = detector.check_tool_authorized("filesystem-mcp")
if event.is_compliant():
    print("✓ Tool authorized")

For complete setup instructions, see the Implementation Guide.

Framework Integrations

Decorator Guard

from ai_scrm import guard

@guard(tool="web-search")
def search_web(query):
    return search_api.search(query)  # Only runs if authorized

LangChain

from ai_scrm import langchain_guard

agent = create_react_agent(llm, tools, prompt)
secure_agent = langchain_guard(agent, abom_path="abom.json")

FastAPI Middleware

from ai_scrm import FastAPIMiddleware

app.add_middleware(FastAPIMiddleware, abom_path="abom.json")

Emergency Bypass

from ai_scrm import emergency_bypass

with emergency_bypass(reason="Production incident #1234"):
    # All checks disabled, but fully logged
    do_emergency_fix()

Package Structure

ai_scrm/
├── __init__.py              # Main exports
├── abom/                    # Control Domain 1: ABOM
│   ├── models.py            # ABOM, Component, Hash, Property
│   ├── builder.py           # Fluent builder for all asset types
│   └── exceptions.py        # ABOM-specific exceptions
├── trust/                   # Control Domain 2: Trust
│   ├── signing.py           # Ed25519, RSA, ECDSA signers
│   ├── verification.py      # Signature verification
│   └── assertion.py         # Trust assertions (AI-SCS 6.3)
├── validation/              # Control Domain 3: Validation
│   ├── detector.py          # Drift detection
│   ├── events.py            # RADE events (attestation, drift, violation)
│   └── emitter.py           # SIEM/SOAR integration
├── scanner/                 # Auto-Discovery
│   ├── scanner.py           # Main scanner
│   ├── inference.py         # Model metadata inference (100+ models)
│   ├── mcp_discovery.py     # MCP server discovery
│   └── metadata.py          # YAML metadata handling
├── monitor/                 # Continuous Validation
│   └── monitor.py           # Tiered monitoring (hash/heartbeat/scan)
├── integrations/            # Framework Shortcuts
│   └── integrations.py      # guard, langchain_guard, FastAPI
└── cli/                     # Command-Line Interface
    └── __init__.py          # init, scan, status, monitor, etc.

Three Control Domains

AI-SCRM implements all three AI-SCS Control Domains:

Domain	Purpose	Key Features
CD1: ABOM	Inventory & Provenance	All 7 asset categories, mandatory fields, CycloneDX 1.6
CD2: Trust	Integrity & Authenticity	Signing, verification, trust assertions
CD3: Validation	Continuous Assurance	Drift detection, events, enforcement

# Control Domain 1: ABOM
from ai_scrm import ABOMBuilder
builder = ABOMBuilder()
builder.add_model(...)
builder.add_mcp_server(...)
abom = builder.finalize()

# Control Domain 2: Trust
from ai_scrm import Signer, Verifier
signer = Signer.generate("ed25519")
signer.sign(abom)

# Control Domain 3: Validation
from ai_scrm import DriftDetector, RADEEmitter
detector = DriftDetector(abom)
emitter = RADEEmitter()
emitter.add_file_handler("events.jsonl")

Supported Asset Categories (AI-SCS 4.1)

AI-SCRM supports all seven AI-SCS asset categories:

Category	Examples	Builder Methods
Models	Base models, fine-tuned, adapters	add_model(), add_fine_tuned_model(), add_adapter()
Data	Training, evaluation datasets	add_dataset(), add_training_data()
Embeddings	Embedding models, vector stores	add_embedding_model(), add_vector_store()
Dependencies	Frameworks, tokenizers, libraries	add_library(), add_framework(), add_tokenizer()
Agents	Orchestrators, planners	add_agent(), add_planner(), add_orchestrator()
Tools	Plugins, MCP servers, APIs	add_tool(), add_mcp_server(), add_external_api()
Infrastructure	TEEs, accelerators	add_infrastructure(), add_tee(), add_accelerator()

Plus behavioral artifacts: add_prompt_template(), add_policy(), add_guardrail()

MCP Server Security

AI-SCRM provides specific support for Model Context Protocol (MCP) servers:

# MCP servers have mandatory fields per AI-SCS 5.3.5
builder.add_mcp_server(
    name="filesystem-mcp",
    version="1.0.0",
    endpoint="http://localhost:3000",      # REQUIRED
    trust_boundary="internal",              # REQUIRED: internal, external, hybrid
    capabilities=["read", "write", "list"]  # REQUIRED
)

# Runtime validation before connecting
detector = DriftDetector(abom)
event = detector.check_mcp_authorized("filesystem-mcp", endpoint="http://localhost:3000")
if not event.is_compliant():
    raise SecurityError(f"Unauthorized MCP: {event.observation.details}")

MCP Authorized	Endpoint Matches	Result
✅	✅	ALLOW
❌	✅	DENY
✅	❌	DENY
❌	❌	DENY

Clear Error Messages

AI-SCRM provides actionable errors:

Signature validation failed for abom.json

The ABOM file has been modified since it was signed.
This could mean:
  • Someone tampered with the file (security incident)
  • You made legitimate changes and forgot to re-sign

To fix:
  • If changes were intentional: ai-scrm sign abom.json
  • If unexpected: Investigate first - this may be a security incident

Diff-Based Approval

When drift is detected:

$ ai-scrm status

⚠️  2 changes detected:

[NEW] MCP Server: slack-notifications-mcp
      Endpoint: http://localhost:3005
      Action: ai-scrm approve slack-notifications-mcp

[CHANGED] Model: llama-3-8b.safetensors
      Hash: a1b2c3... → x7y8z9...
      Action: ai-scrm approve model:llama-3-8b

SIEM/SOAR Integration

AI-SCRM emits structured RADE (Runtime Attestation & Drift Events) for security integration:

from ai_scrm import RADEEmitter, DriftDetector

# Create emitter with handlers
emitter = RADEEmitter(system_name="my-ai-assistant")
emitter.add_file_handler("./logs/rade-events.jsonl")
emitter.add_webhook_handler("https://siem.company.com/api/events")

# Emit events from validation
detector = DriftDetector(abom)
events = detector.check("./deployed-system")
emitter.emit_all(events)

# Events are SIEM-compatible JSON
# {
#   "eventType": "drift",
#   "severity": "critical",
#   "observation": {"type": "model-substitution", ...},
#   "abomBinding": {"serialNumber": "urn:uuid:..."}
# }

Conformance Levels (AI-SCS Section 8)

AI-SCRM supports all three AI-SCS conformance levels:

Level	Name	Requirements	AI-SCRM Support
Level 1	Visibility	ABOM generation, static provenance	✅ Scanner, ABOMBuilder
Level 2	Integrity	Artifact signing, verification	✅ Signer, Verifier
Level 3	Continuous Assurance	Runtime validation, automated detection	✅ Monitor, DriftDetector, RADEEmitter

CLI Reference

# First-time setup (does everything)
ai-scrm init
ai-scrm init --dir ./my-project --no-sign

# Scanning
ai-scrm scan
ai-scrm scan --dir ./models --output results.json

# Status (with live updates)
ai-scrm status
ai-scrm status --watch

# ABOM management
ai-scrm abom validate abom.json --strict
ai-scrm abom info abom.json

# Trust operations
ai-scrm trust keygen --algorithm ed25519
ai-scrm trust sign abom.json --key ./keys/private.pem
ai-scrm trust verify abom-signed.json

# Validation
ai-scrm validation check --abom abom.json
ai-scrm monitor --hash-interval 30

# Change management
ai-scrm approve mcp:new-server --trust internal
ai-scrm reject mcp:suspicious-server

Works with Your Existing Security Infrastructure

AI-SCRM was designed to work with your existing security tools:

• Uses CycloneDX 1.6, a standard SBOM format
• Emits SIEM-compatible structured events
• Integrates with policy engines via callbacks
• Supports existing key management (HSM, cloud KMS)
• Works with CI/CD pipelines (GitHub Actions, GitLab)
• Compatible with Kubernetes admission controllers

Component Declared	Signature Valid	Hash Matches	Result
✅	✅	✅	ALLOW
❌	✅	✅	DENY
✅	❌	✅	DENY
✅	✅	❌	DENY

Runtime Validation Scenarios

AI-SCRM supports various validation scenarios:

• Startup Validation: Verify all components before system initialization
• Continuous Monitoring: Periodic checks for drift with configurable intervals
• On-Demand Checks: Validate specific components before use
• Tool Authorization: Check tool/MCP permissions before invocation

# Startup validation
events = detector.check("./deployed-system")
if any(e.event_type == "drift" for e in events):
    raise SecurityError("System integrity compromised")

# Tool authorization before use
if detector.check_tool_authorized("web-search").is_compliant():
    result = web_search_tool.execute(query)

See the Implementation Guide for complete validation setup.

Documentation

• Implementation Guide - Complete setup with all Control Domains
• CI/CD Integration - GitHub Actions, GitLab CI examples in guide
• Kubernetes - Admission controller example in guide

Version History

Version	Changes
1.0.1	Minor release: Bug fixes in CLI Syntax and Logic
1.0.0	Full release: Auto-discovery, smart inference, continuous monitoring, framework integrations, Ed25519/RSA/ECDSA signing, RADE events

License

Apache License 2.0