Sold by: STELR AI
Deployed on AWS
Quick Launch
Cryptographically sign, verify, and prove the origin of AI outputs from Amazon Bedrock, deployed entirely inside your own AWS account. Built for regulated industries.
Overview
What SSL/TLS did for the internet, STELR does for enterprise AI.
Every AI-generated output your organization produces today has a trust gap: no cryptographic proof of what generated it, when, or whether it was altered afterward. As GenAI adoption accelerates and regulations like the EU AI Act's Article 50 make machine-readable provenance a legal requirement, "we assume it's fine" is no longer acceptable for regulated industries, financial services, healthcare, government, legal, and insurance most of all.
STELR signs every AI generation from Amazon Bedrock with a KMS-backed cryptographic signature, records it in an immutable, hash-chained ledger, and gives you a verifiable audit trail that holds up months or years later, in a real audit, not just at generation time.
Deployed entirely inside your own AWS account. STELR never sees your prompts, your outputs, or your customer content. Signing, ledger storage, and Bedrock invocation all happen inside your account's own security boundary, the same trust model your security team already accepts for every other AWS-native tool. STELR operates only a public key registry, for third-party signature verification, and optional billing metering, both of which are metadata, never content.
What you get:
- Cryptographic, non-repudiable proof of every AI-generated output's origin, model, and integrity
- An immutable, tamper-evident ledger (S3 Object Lock Compliance mode plus a hash-chained record structure) that survives even a compromised AWS account
- Third-party-verifiable signatures via STELR's public key registry, no call to STELR required to verify
- Policy enforcement at generation time: block, flag, or allow based on your own rules
- A full evidence trail for audits, months or years after the fact
- Deployment via CloudFormation/CDK in minutes, no changes to your existing Bedrock integration
Built for regulated industries first. Financial services, healthcare, government, legal, and insurance organizations adopting GenAI face a sharpening requirement: prove what your AI produced, prove it wasn't altered, and prove it to an auditor who wasn't in the room when it happened. STELR is purpose-built for exactly that requirement.
Highlights
- Zero content exposure: signs and verifies entirely inside your AWS account, STELR never receives your prompts or outputs, only cryptographic metadata.
- Cryptographically non-repudiable: KMS-backed signatures plus an immutable, hash-chained ledger, not a watermark or a heuristic AI detector.
- Deploy in minutes via CloudFormation/CDK, works with your existing Amazon Bedrock integration, no application code changes required.
Details
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Quick Launch
Leverage AWS CloudFormation templates to reduce the time and resources required to configure, deploy, and launch your software.
Pricing
Pricing is based on the duration and terms of your contract with the vendor, and additional usage. You pay upfront or in installments according to your contract terms with the vendor. This entitles you to a specified quantity of use for the contract duration. Usage-based pricing is in effect for overages or additional usage not covered in the contract. These charges are applied on top of the contract price. If you choose not to renew or replace your contract before the contract end date, access to your entitlements will expire.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Description | Cost/month | Overage cost |
|---|---|---|---|
AI Generations | Each AI generation processed through STELR, cryptographically signed, recorded in the immutable provenance ledger, and available for third-party verification. | $0.04 |
Dimensions summary
This listing uses a single usage-based dimension: AI Generations (Requests). You pay per AI generation processed through STELR. Each request is cryptographically signed, recorded in an immutable provenance ledger, and made available for third-party verification. There are no tiers or instance sizes to choose from. Your cost scales directly with how many AI generations you run. The more generations you process, the more you pay. This keeps pricing tied to actual usage rather than a fixed commitment quantity.
Top-of-mind questions for buyers
One AI generation is a single output produced by a model you run and processed through STELR. Each output gets cryptographically signed at creation, recorded in the immutable provenance ledger, and made available for third-party verification. Each request you send to sign counts as one billable generation.
Billing is tied to AI generations processed and signed through STELR. Verification confirms origin and integrity of an already-signed record on demand. Based on the dimension, charges track the signing of generations rather than each verification call. For exact verification metering, confirm with the vendor.
Cost tracks the number of AI generations you process and sign. Process fewer generations and you pay less; process more and you pay more. There is no fixed tier or minimum quantity to select, so your bill moves directly with actual usage.
stelrai.com
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Vendor refund policy
Subscription fees are billed in advance and are non-refundable except as required by law. Unused usage within a billing period is not credited. To request an exception or report a billing issue, contact prashant@stelrai.com within 30 days of the charge. Requests are reviewed case by case.
Legal
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Delivery details
Software as a Service (SaaS)
SaaS delivers cloud-based software applications directly to customers over the internet. You can access these applications through a subscription model. You will pay recurring monthly usage fees through your AWS bill, while AWS handles deployment and infrastructure management, ensuring scalability, reliability, and seamless integration with other AWS services.
Support
Vendor support
Email: prashant@stelrai.com Response time: within 1 business day for Starter and Growth tiers; same-business-day for Enterprise. Documentation: http://stelrai.com/#how Onboarding: guided setup included with every subscription tier; Enterprise customers receive a dedicated onboarding session. Support scope: covers deployment, signature verification, ledger/audit questions, and integration troubleshooting. Does not cover legal or regulatory interpretation of your specific compliance obligations.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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