Build Trust in Every Word

STELR AI empowers organizations to combat digital fraud with PureStamp’s cryptographic watermarking and PureVector’s AI vs. human detection, ensuring authenticity and compliance in education, publishing, and regulated industries.

Seamless integration with AWS S3, Lambda, Pinecone, Weaviate, and more.
Trust in Action
STELR AI dashboard preview

Stamp and verify content authenticity in real time.

Trusted by Industry Leaders

AWS logo Pinecone logo Weaviate logo logo Bedrock logo

"PureStamp ensures our credentials are verifiable, while PureVector catches AI-generated submissions."

Dr. Emily Chen, Dean of Academic Affairs

"STELR AI’s tools protect our editorial pipeline from unverified content."

Laura Bennett, Managing Editor

"PureStamp and PureVector streamline compliance for our legal workflows."

Michael Patel, Compliance Officer

Why STELR AI is Your Trust Partner

PureStamp and PureVector combine to deliver end-to-end content trust.

1

Prove Authenticity

PureStamp’s cryptographic watermarks bind content to its creator, ensuring tamper-proof provenance.

2

Detect AI Content

PureVector identifies AI-generated vs. human content with 92%+ accuracy, protecting your workflows.

3

Ensure Compliance

Both products support EU AI Act, SOC 2, and GDPR with auditable metadata.

PureStamp

Cryptographically stamp content to prove origin and authenticity.

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PureVector

Detect AI-generated content with high accuracy for compliance and trust.

Learn More

End-to-End Content Trust

PureStamp and PureVector work together to secure your content pipeline.

  1. 1
    Stamp Content: Use PureStamp’s /purestamp/stamp to add cryptographic watermarks at creation.
  2. 2
    Detect AI: Use PureVector’s /purevector/detect to identify AI vs. human content.
  3. 3
    Verify & Comply: Validate stamps and metadata via API or S3 triggers for audit-ready workflows.
Built on AWS with API Gateway, Lambda, S3, and KMS for scalability.
Quickstart (cURL)
# Stamp content with PureStamp
curl -X POST "https://api.stelrai.com/purestamp/stamp" \
  -H "x-api-key: <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{"content":"Your document here","creator":"alice@school.edu"}'

# Detect AI with PureVector
curl -X POST "https://api.stelrai.com/purevector/detect" \
  -H "x-api-key: <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{"content":"Your text here","mime_type":"text/plain"}'
          
Full API Documentation

Built for Compliance

STELR AI ensures your workflows meet global standards with auditable, tamper-proof metadata.

EU AI Act
SOC 2
GDPR
NYDFS 500.13
Chain-of-Custody

Pricing for Every Need

Start free, scale confidently with PureStamp and PureVector.

Free

For developers and small projects

$0 /month
  • 1,000 requests/month
  • Community support
  • Basic analytics
Get API Keys
Most Popular

Pro

For production-grade applications

Custom /month + usage
  • 100,000 requests/month
  • Priority email support
  • Advanced analytics
Get Pro

Enterprise

Custom solutions for large-scale needs

Custom
  • Unlimited requests
  • SOC 2 compliance
  • Dedicated support
  • Custom integrations
Contact Sales

Frequently Asked Questions

Everything you need to know about STELR AI’s solutions.

What is the difference between PureStamp and PureVector?

PureStamp cryptographically watermarks content to prove origin, while PureVector detects whether content is AI-generated or human-crafted.

What file types are supported?

PDF, DOCX, TXT, JSON, PNG, JPEG for PureStamp; text and documents for PureVector. More formats coming soon.

How do PureStamp and PureVector work together?

PureStamp watermarks content at creation, and PureVector verifies its authenticity and detects AI-generated content, ensuring end-to-end trust.

How secure are STELR AI’s solutions?

PureStamp uses AWS KMS for cryptographic signatures, and PureVector employs advanced hybrid models, both ensuring tamper-proof, compliant solutions.

Secure Your Content Today

Join thousands of organizations trusting STELR AI to verify content authenticity. Start with our free demo or API key.