apiposture 1.0.5

A CLI security inspection tool for Python API frameworks

ApiPosture

A CLI security inspection tool for Python API frameworks. Performs static source-code analysis to identify authorization misconfigurations and security risks.

Features

• Multi-Framework Support: FastAPI, Flask, Django REST Framework
• 8 Security Rules: Comprehensive detection of common authorization issues
• Multiple Output Formats: Terminal (Rich), JSON, Markdown
• Configurable: YAML-based configuration with suppressions
• CI/CD Ready: Exit codes based on severity for pipeline integration

Installation

pip install apiposture

Quick Start

# Scan current directory
apiposture scan .

# Scan specific path with JSON output
apiposture scan ./src --output json

# Scan and fail on high severity findings (for CI)
apiposture scan . --fail-on high

Security Rules

Rule	Name	Severity	Description
AP001	Public without explicit intent	High	Public endpoint without AllowAny or explicit marker
AP002	Anonymous on write	High	AllowAny on POST/PUT/DELETE/PATCH
AP003	Auth conflict	Medium	Method-level AllowAny overrides class auth
AP004	Missing auth on writes	Critical	No auth on write endpoints
AP005	Excessive roles	Low	>3 roles on single endpoint
AP006	Weak role naming	Low	Generic names like "user", "admin"
AP007	Sensitive keywords	Medium	admin/debug/export in public routes
AP008	Endpoint without auth	High	No auth configuration at all

Supported Frameworks

FastAPI

from fastapi import Depends, FastAPI

@app.get("/protected")
async def protected(user = Depends(get_current_user)):
    ...

Flask

from flask import Flask
from flask_login import login_required

@app.route("/protected")
@login_required
def protected():
    ...

Django REST Framework

from rest_framework.views import APIView
from rest_framework.permissions import IsAuthenticated

class ProtectedView(APIView):
    permission_classes = [IsAuthenticated]

Configuration

Create .apiposture.yaml in your project root:

rules:
  disabled:
    - AP006  # Disable weak role naming check

exclude:
  - "**/tests/**"
  - "**/migrations/**"

suppressions:
  - rule: AP001
    route: "/health"
    reason: "Health check is intentionally public"

CLI Options

apiposture scan [PATH] [OPTIONS]

Options:
  -o, --output         Output format: terminal, json, markdown
  -f, --output-file    Write output to file
  -c, --config         Configuration file path
  --severity           Minimum severity: info, low, medium, high, critical
  --fail-on            Exit code 1 if findings at this severity
  --sort-by            Sort by: severity, route, method, classification
  --classification     Filter: public, authenticated, role_restricted
  --method             Filter: GET, POST, PUT, DELETE, PATCH
  --route-contains     Filter routes by substring
  --framework          Filter: fastapi, flask, django_drf
  --rule               Filter by rule ID
  --no-color           Disable colored output
  --no-icons           Disable icons

Development

# Clone the repository
git clone https://github.com/apiposture/apiposture-python
cd apiposture-python

# Install with dev dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Run linter
ruff check src tests

# Run type checker
mypy src

License

MIT