vettly 0.1.5

Python SDK for Vettly content moderation API

vettly

Don't let one bad post kill your startup. Content moderation API for text, images, and video.

Installation

pip install vettly

Quick Start

from vettly import ModerationClient

client = ModerationClient("sk_live_...")

result = client.check(
    content="User-generated text",
    policy_id="community-safe"
)

if result.action == "block":
    # Content blocked
    pass

Get Your API Key

1. Sign up at vettly.dev
2. Go to Dashboard → API Keys
3. Create and copy your key

Features

• Text, images, video - One unified API for all content types
• Custom policies - Define thresholds in YAML
• Webhooks - Get notified when content is flagged
• Dashboard - Monitor decisions and export logs
• Automatic retries - Exponential backoff for rate limits and server errors
• Async support - Full async/await support with AsyncModerationClient

Text Moderation

result = client.check(
    content="User-generated text",
    policy_id="community-safe"
)

print(result.action)      # 'allow' | 'flag' | 'block'
print(result.categories)  # List of CategoryResult
print(result.id)          # Decision ID for audit trail

Image Moderation

# From URL
result = client.check_image(
    image_url="https://example.com/image.jpg",
    policy_id="strict"
)

# From base64
result = client.check_image(
    image_url="data:image/jpeg;base64,/9j/4AAQ...",
    policy_id="strict"
)

Idempotency

Prevent duplicate processing with request IDs:

result = client.check(
    content="Hello",
    policy_id="default",
    request_id="unique-request-id-123"
)

Error Handling

The SDK provides typed exceptions for better error handling:

from vettly import (
    VettlyAuthError,
    VettlyRateLimitError,
    VettlyQuotaError,
    VettlyValidationError,
)

try:
    result = client.check(content="test", policy_id="default")
except VettlyAuthError:
    print("Invalid API key")
except VettlyRateLimitError as e:
    print(f"Rate limited. Retry after {e.retry_after}s")
except VettlyQuotaError as e:
    print(f"Quota exceeded: {e.quota}")

Webhook Signature Verification

Verify webhook signatures to ensure authenticity:

from vettly import verify_webhook_signature, construct_webhook_event

@app.route("/webhooks/vettly", methods=["POST"])
def handle_webhook():
    payload = request.get_data(as_text=True)
    signature = request.headers.get("X-Vettly-Signature")

    if not verify_webhook_signature(payload, signature, webhook_secret):
        return "Invalid signature", 401

    event = construct_webhook_event(payload)

    if event["type"] == "decision.blocked":
        # Handle blocked content
        pass

    return "OK", 200

Async Support

from vettly import AsyncModerationClient

async with AsyncModerationClient("sk_live_...") as client:
    result = await client.check(
        content="User content",
        policy_id="community-safe"
    )

Configuration

from vettly import ModerationClient

client = ModerationClient(
    api_key="sk_live_...",
    api_url="https://api.vettly.dev",  # Optional: custom API URL
    timeout=30.0,                       # Optional: request timeout in seconds
    max_retries=3,                      # Optional: max retries for failures
    retry_delay=1.0,                    # Optional: base delay for backoff in seconds
)

FastAPI Example

from fastapi import FastAPI, HTTPException
from vettly import AsyncModerationClient

app = FastAPI()
client = AsyncModerationClient("sk_live_...")

@app.post("/comments")
async def create_comment(content: str):
    result = await client.check(content=content, policy_id="community-safe")

    if result.action == "block":
        raise HTTPException(403, "Content blocked")

    return {"status": "ok"}

Response Format

CheckResponse(
    id="550e8400-e29b-41d4-a716-446655440000",
    safe=False,
    flagged=True,
    action=Action.BLOCK,
    categories=[
        CategoryResult(category="hate_speech", score=0.91, threshold=0.8, triggered=True),
        CategoryResult(category="harassment", score=0.08, threshold=0.8, triggered=False),
    ],
    latency_ms=147,
    policy_id="community-safe",
)

Pricing

Plan	Price	Text	Images	Videos
Developer	Free	2,000/mo	100/mo	25/mo
Growth	$49/mo	50,000/mo	5,000/mo	1,000/mo
Pro	$149/mo	250,000/mo	25,000/mo	5,000/mo
Enterprise	Custom	Unlimited	Unlimited	Unlimited

Links

• vettly.dev - Sign up
• docs.vettly.dev - Documentation