Best free Security & moderation APIs

5 Security & moderation APIs with a free plan, compared side by side on endpoints, latency and price.

API Endpoints Subscribers Latency Service level Free tier Paid from
Camera security AI — feed analysis & danger alerts Analyse camera feeds for unusual activity and raise real-time alerts. Camera security AI — feed analysis & danger alerts vs Email, phone & IP validation — fraud prevention API → 1 $0.00 $9.99
Email, phone & IP validation — fraud prevention API Block fake signups: disposable email, invalid numbers, VPN, proxy and Tor detection. Email, phone & IP validation — fraud prevention API vs NSFW image detection — content safety API → 1 $0.00 $9.99
NSFW image detection — content safety API Classify images and video frames for explicit content before they are published. NSFW image detection — content safety API vs NSFW text detection — content safety API → $0.00 $9.99
NSFW text detection — content safety API Detect explicit language, hate speech and unsuitable text before it is posted. NSFW text detection — content safety API vs Quantum-safe cryptography — end-to-end encryption API → 1 $0.00 $9.99
Quantum-safe cryptography — end-to-end encryption API AES, RSA and homomorphic encryption behind a single REST interface. 1 $0.00 $9.99

Which one to pick

Choosing between APIs in the same category usually comes down to four numbers: how much surface the API covers, how fast it answers, how reliably it stays up and what it costs once the free tier runs out. The table below puts those numbers next to each other so the comparison takes a minute rather than an afternoon of tab-switching.

Every service listed here has a plan that costs nothing and needs no card, so the shortlist can be tested before any of it is paid for.

Frequently asked questions

How many free Security & moderation APIs are listed here?
This catalogue lists 5 Security & moderation APIs, all with a plan that costs $0. The most used are Camera security AI — feed analysis & danger alerts, Email, phone & IP validation — fraud prevention API, NSFW image detection — content safety API.
Which free Security & moderation API covers the most endpoints?
Camera security AI — feed analysis & danger alerts covers the most ground with 1 endpoints.
What does the cheapest paid Security & moderation plan cost?
Past the free plan, Camera security AI — feed analysis & danger alerts is the cheapest at $9.99 a month.
Are these Security & moderation APIs really free?
Yes. Every Security & moderation API listed here has a plan that costs $0 a month and needs no card. Paid plans exist for higher volume and their prices are in the table above.

Best free Security & moderation APIs

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Updated 2026-06-12 by Bilgisam Ltd. About