How access works, in one paragraph

ETHRAEON offers four delivery forms, and each is reached a different way. Hosted access products (the API tiers, the free trial, and Foundation) govern supported work around the tools and models you already use; they are reached through your ETHRAEON account and customer key, without requiring VESPA or adoption of EUDS. Installable products (the Rylin's Faith game) are downloaded after purchase. Bookable products (the seminars) are paid once and then scheduled as a live session. Quoted products (Platform Professional, Enterprise, Sovereign, and the enterprise governance products) begin with a briefing request and are provisioned through a written agreement. This page identifies the delivery contract and first usable result for each current offer.

The sellable catalog at a glance

ProductPriceHow you get itAccess model
Free 10-day trialFree, no cardAccount keyHosted access
API Starter$49 / monthAccount keyHosted access
API Professional$499 / monthAccount keyHosted access
API Scale$4,999 / monthAccount keyHosted access
Foundation membership$749 / monthAccount loginHosted access
Rylin's Faith$59.99 one-timeDownloadInstallable
FactPulse ProSee product pageOpen the appNative app
Executive Briefing (3 hours)EUR 450 to EUR 1,200Pay then scheduleBookable
In-person Workshop (1 day)EUR 950 to EUR 2,500Pay then scheduleBookable
Online Cohort (6 weeks)EUR 750 to EUR 1,800Pay then scheduleBookable
Platform ProfessionalFrom $109 / monthRequest a quoteQuoted
Enterprise platformFrom $499 / month, multi-seatRequest a quoteQuoted
SovereignFrom $999 / month, or $5,490 one-timeRequest a quoteQuoted
Enterprise governance products (6)Configurable bands, set at quoteRequest a quoteQuoted
Analyst kitFree on requestDownloadDocument
Sovereign Tech, Connection Coach, BiasWatch, VividForgeSet with each engagementInquireIn scoping

Free 10-day trial Hosted access

ETHRAEON 10-Day Trial

Free. No card required.

What you receive
A live ETHRAEON license key (an ek_live_ key) for ten days of the governed-service baseline. Supported chat, voice-to-text, and image generation remain representative workloads; the product value is the policy-controlled action, evidence receipt, inspection, and recovery around that work.
Access and activate
Go to account.ethraeon.ai/trial and start the trial. Your key is created immediately and shown on your account page. There is nothing to install.
First run
Open the WhisperNet console at whispernet.ethraeon.ai, paste your key once, and run a supported workload. Inspect the returned evidence reference and the applied governance result. The same key also works in the REST API.
Usage and limits
The trial runs for ten days from activation and is metered. Your live remaining quota is shown on your account page and in the console after each call. When the trial ends, upgrade to any API tier to keep the same workflow.
Support
contact.ethraeon.ai.
Cancel and export
Nothing to cancel. The trial expires on its own with no charge. Your evidence records remain queryable from your account while the entitlement is active.
Start the 10-day trial

API tiers: Starter, Professional, Scale Hosted access

All three API tiers expose the governed service at ascending source-defined capacity. You subscribe, receive a live key, and use the REST API or supported customer console around your own stack. The governed generative workloads are reference workloads that demonstrate the governed service; the product you contract for is the governed API itself. Your entitlement covers the governed API, browser console and account page, while VESPA, the private operator application, stays outside it. The API needs no installation; an optional SDK is available for supported integrations.

API Starter, Professional, and Scale

$49 / month · $499 / month · $4,999 / month

What you receive
A live API key (an ek_live_ key) shown on your account page, with metered governance evaluation and evidence records around supported workloads. Governed chat, voice-to-text, and image generation remain available reference workloads. Higher tiers raise the documented call ceiling and support level; Scale includes dedicated support.
Access and activate
On the pricing page, choose your tier and complete Stripe checkout. When payment clears you are redirected to account.ethraeon.ai/claim, which activates your entitlement and takes you to your account page where the key is displayed.
How you use it (three ways, no install required)
Console: open whispernet.ethraeon.ai, paste your key once, and use the Chat, Image, and Voice-to-text tabs. REST API: send your key as a bearer token to the endpoints in the API Reference; the machine-readable contract is the OpenAPI 3.1 specification. SDK (optional): pip install ethraeon-sdk (Python 3.10+) or npm install @ethraeon/sdk (Node.js 18+).
First run
Paste your key into the console and run one governed workload. Inspect the governance result and evidence-chain reference; together with the returned meter state, they confirm that the key and governed-service path are active.
Usage and limits
Each tier is metered. Your live quota (limit and amount used) is shown on your account page and returned with each console and API call, so you always know where you stand. Starter is a monthly subscription that renews automatically.
Support
Starter and Professional: contact.ethraeon.ai. Scale: dedicated support, arranged at onboarding.
Cancel, refund, export
Manage or cancel the subscription from the Stripe customer portal linked in your billing confirmation email. Refunds are handled through support. Your evidence records stay queryable from your account while the entitlement is active.
Choose an API tier

Foundation membership Hosted access

ETHRAEON Foundation

$749 / month

What you receive
The one-team constitutional runtime baseline, governance policy templates, evidence receipts and review path, governed-workflow documentation, and community support. EUDS design-system material is included as a presentation resource; it is not the primary governance entitlement and customers may retain their own presentation layer.
Access and activate
Subscribe from the pricing page Foundation card. Stripe checkout completes and redirects you to account.ethraeon.ai/claim, which activates your membership and signs you in to your account. There is nothing to install; Foundation is reached through your account.
First run
From your account, open the documentation hub at ethraeon.ai/docs, choose a supported one-team workflow, apply a governance policy template, and inspect the evidence receipt from the governed result. Community support is reached through the same account.
Usage
Use the one-team governed runtime, policy templates, evidence and module documentation around supported work in your own stack. EUDS remains available when its components fit your presentation needs, but adopting it is optional. Foundation is a monthly membership that renews automatically.
Support
Community support, plus contact.ethraeon.ai for account questions.
Cancel, refund, export
Manage or cancel from the Stripe customer portal linked in your confirmation email. Refunds through support.

If you need a runtime license, multi-seat deployment, or on-premise install, those are the Enterprise and Sovereign tiers, quoted below.

Subscribe to Foundation

VESPA (private owner application)

VESPA is ETHRAEON's private operator application

Not offered to customers

What it is
VESPA is the private operator application used by the CEO to operate ETHRAEON. It is not sold, is not included with any API or trial entitlement, and is not distributed to customers. Access is restricted to authorized operators via Cloudflare Access at vespa.ethraeon.ai.
What customers use instead
Your ETHRAEON license key gives you the full governed service through the REST API and the WhisperNet browser console at whispernet.ethraeon.ai (governed chat, voice-to-text, and image generation), plus your account page at account.ethraeon.ai. Nothing is installed to use the governed service.
Support
contact.ethraeon.ai.
Open the WhisperNet console

Rylin's Faith Installable

Rylin's Faith (narrative game)

$59.99 one-time

What you receive
A complete single-purchase narrative game. Native builds are published for macOS (Apple Silicon and Intel, notarized) and Linux; a Windows build is available as an unsigned archive while its signing certificate is being finalized.
Buy and access
Open the game page at ethraeon.ai/games/rylins-faith and complete checkout. When payment clears you are taken to your account to claim your purchase, from which you reach the download.
Install
macOS: open the notarized build for your chip (Apple Silicon or Intel) and drag it to Applications; Gatekeeper opens it without an override. Linux: download the tarball, extract it, and run the included binary. Windows: download the archive, extract it, and run the executable; because the build is not yet code-signed, Windows SmartScreen will ask you to confirm before it launches.
First run
Launch the app and start a new game from the title screen. No key or sign-in is required after purchase; the download is yours.
Support
contact.ethraeon.ai.
Refund
One-time purchase. Refunds are handled through support.
Rylin's Faith details

FactPulse Pro Native app

FactPulse Pro (claim verification)

What it is
A Eudaimonia-native claim-verification interface that runs on the constitutional runtime. You submit a claim with the source you found it in, and it is verified against the governed evidence chain rather than asserted.
How you get it
Open it in the browser at ethraeon.ai/factpulse-pro. It is a live native application delivered in the browser; commercial terms for organizational use are agreed through a direct conversation.
First run
Open the page, enter a claim and where you found it, and submit it for verification. Results are drawn from the evidence backbone the rest of the estate rides.
Support
contact.ethraeon.ai.
Open FactPulse Pro

Seminars and executive education Bookable

The clinical AI governance seminars are paid once, then delivered as a live, instructor-led session. There is no software to install; you receive access to the confirmation, curriculum, reading list, scheduling, and joining instructions.

Executive Briefing, In-person Workshop, and Online Cohort

Executive Briefing (3 hours), In-person Workshop (1 day), Online Cohort (6 weeks). Standard, institutional, and academic rates from EUR 450 to EUR 2,500.

What you receive
A seat in the chosen format, with curriculum, a reading list, a schedule, and attendance instructions for the live session.
Buy and access
Choose a format on the seminar page and complete Stripe checkout (USD, EUR, GBP, and CHF are supported at checkout). When payment clears you are taken to the seminar access page at ethraeon.ai/seminar/access, which confirms your booking and opens the curriculum, reading list, schedule, and joining details.
First steps
Read the confirmation, review the curriculum and reading list, and note your session time from the schedule. Joining instructions for the live session are on the same access page.
Support
contact.ethraeon.ai.
Cancel and refund
Cancellations before the session are handled through support; refunds are processed on the original payment.
View seminar formats and book

Platform Professional, Enterprise, and Sovereign Quoted

These tiers are quoted to your scope and provisioned through a written agreement. The path is the same for all three: request a briefing, scope the deployment, sign, and onboard.

Platform Professional (from $109 / month), Enterprise (from $499 / month, multi-seat), Sovereign (from $999 / month or $5,490 one-time)

What you receive
Professional is the entry platform subscription below Foundation, with multi-currency billing. Enterprise adds a PRAXIS-1 runtime license, Evidence Store deployment, the deterministic governance stack, dedicated support, and custom governance policies. Sovereign adds on-premise deployment, full source access, a dedicated architect, and an SLA.
How you get it
Submit the briefing form at ethraeon.ai/request-briefing (the pricing cards pass your chosen tier automatically), or write to contact.ethraeon.ai.
What happens next
You have a scoping conversation, receive a written quote built from the published starting bands (seats, throughput, deployment model, jurisdiction, integration and support level), sign the agreement, and are invoiced. Provisioning and, for Sovereign, the on-premise or dedicated deployment are handled with a named contact through onboarding.
Install (Sovereign)
Sovereign is an on-premise or dedicated deployment installed with your dedicated architect during onboarding. The deployment is built to your jurisdiction and control scope.
Support
Dedicated support at Enterprise and Sovereign; account support for Professional.
Cancel and terms
Renewal, cancellation, and refund follow the terms of your agreement.
Request a quote

Enterprise governance products Quoted

Six governance products are packaged for direct license, hosted subscription, API-metered access, white-label, SDK integration, or spin-out. Each is quoted from a repeatable four-band price book (setup, recurring, usage, support). How you access a product depends on the commercial model you choose, which is set in your quote.

Cross-Border Fraud Detection, Attribution Engine, Compliance Engine, Governance Dashboard, Decision Audit System, Multi-Agent Orchestrator

What you receive
The chosen governance product, delivered under the commercial model in your agreement. Each product page carries its buyer brief and one-pager.
How you get it
Browse the product at ethraeon.ai/products, then request a quote from that product page or at contact.ethraeon.ai.
How you access it (set at quote)
If you choose hosted subscription, you access it through an ETHRAEON-hosted surface after provisioning. If you choose API-metered, you receive a key and call the endpoints. If you choose direct license, white-label, or SDK integration, it runs on your infrastructure and is installed or embedded during onboarding. Spin-out is handled per the carve-out agreement.
Support
Set at quote as a support band; reached through your named contact and contact.ethraeon.ai.
Terms
Renewal, cancellation, and refund follow your agreement.
Browse the products

Analyst kit Document

ETHRAEON Analyst Kit

What you receive
A downloadable analyst brief and supporting materials describing the platform, its architecture, and its evidence model.
How you get it
Read the analyst brief at ethraeon.ai/analyst and download the supporting files from the Downloads Center. Where a file is access-controlled, request it at contact.ethraeon.ai.
Support
contact.ethraeon.ai.
Open the analyst brief

Products in scoping In scoping

The following are in active scoping. Their access and delivery model, and their pricing, are set with each engagement. We do not publish an install path for a product that is not yet configured for self-serve delivery, so the honest step today is to inquire.

Sovereign Tech Suite, Connection Coach, BiasWatch, VividForge

What they are
Sovereign Tech Suite is a set of constitutional governance tools with SHA-256 receipts on an append-only evidence chain. Connection Coach and BiasWatch are governance-native applications. VividForge is a world-building engine, indicated at EUR 25 per month or EUR 60 one-time.
How to proceed
Write to contact.ethraeon.ai to discuss access and pricing. When any of these is configured for self-serve purchase and delivery, its access and install steps will be published here.
Support
contact.ethraeon.ai.
Inquire

Getting help

For any product, the support path is contact.ethraeon.ai. Account, key, and billing questions are answered there. Enterprise, Sovereign, and Scale customers also have a named contact arranged at onboarding.

Lost your key or your download? Sign in at account.ethraeon.ai to see your active entitlement and license key. Purchases and downloads are tied to your account, so you can always return to them.