MarkProofMark it · Prove it · Article 50
Early access
EU AI Act · Article 50

Label AI content the way the law now requires.

Sign and validate C2PA / Content Credentials on every AI-generated image, video and audio file — and get the audit trail you can hand a regulator. One API call.

Machine-readable mark mandatory in
days
hrs
min
sec

A $99/mo subscription is cheaper than a €15M fine. No spam — one email when the beta opens.

Content Credentials
campaign_hero_v3.png Credential attached
€15M / 3%
Max fine of global turnover (Spain: 7%)
2 Aug 2026
Visible “AI-generated” label required
2 Dec 2026
Machine-readable mark required
EU · CN · US
A global wave of labeling rules
How it works

Three steps between “we generate content” and “we’re compliant.”

You keep your workflow. We handle the cryptography, the disclaimers, and the paper trail.

STEP 01

Sign

POST an image or video. Get it back with an embedded C2PA manifest and a visible “AI-generated” disclaimer — batch or one at a time.

STEP 02

Verify

POST any asset to read its Content Credentials: what made it, when, and whether the mark is intact and trusted.

STEP 03

Prove

A dashboard shows your coverage; export a signed audit report that demonstrates Article 50 compliance to a regulator.

One call

Not another signing library. A compliance workflow.

The open-source C2PA tools are free — and raw. We wrap them in the API, the batch pipeline, and the audit report your compliance team actually needs.

sign.sh
# Label one asset the way Article 50 requires
curl -X POST https://api.markproof.io/sign \
  -H "Authorization: Bearer $KEY" \
  -F file=@campaign_hero_v3.png \
  -F disclaimer="ai-generated"

# → signed asset + C2PA manifest + audit id
{ "signed": true,
  "credential": "c2pa.urn:uuid:9f2c…",
  "audit_id": "aud_0xA1B2" }
Pricing

Priced below the risk it removes.

PlanPriceBuilt for
Dev$0Sandbox, a few operations a month
Starter$49–99/moSmall teams and creators
Pro$299–999/moAgencies & media: batch, integrations, multi-seat
EnterpriseCustomBrands & AI vendors: SSO, on-prem, SLA, DPA
The deadline is already on the clock

Be marked compliant before enforcement begins.

Join the early-access list and be first to label your content the way the law now demands.

Get early access