Public Engine
Community
Use the open-source Context Gateway locally.
$0
Free, forever
- Sources, search and every read mode
- Local safety, reference routing and budgets
- Cache, memory, receipts and recovery
No account needed. Apache-licensed.
Pricing
Your work.Your way to run it.
Use the open-source Context Gateway locally. Pro adds Personal Cloud sync and backup plus a 1 GB hosted index, within the limits of your selected plan. Team adds one shared, governed context for up to 25 seats. Enterprise adds organization controls, or build LeanCTX into your product with SDK/OEM.
Personal Cloud
Pro
Your context, synced and backed up.
$9/ month
or $90 per year
- Personal Cloud sync and backup
- 1 GB hosted index
- All Community features included
14 days free, cancel any time. Your local Engine keeps working.
Shared team context
Team
One governed context for your whole team.
$29/ month per seat
or $290 per year per seat
- Hosted team server, shared workspace
- Role-based access, OIDC single sign-on, audit log
- 20 GB shared hosted index
For 1 to 25 seats. On Pro? Upgrade in the billing portal.
Commercial, release-based offer
Enterprise
Apply shared context policies across your organization.
Contact
Annual agreement
- Organization identity, roles and access controls
- Shared policy, approvals, audit and reporting
- Deployment, recovery and operating support
Scope set by the licensed release and a written agreement.
Prices in USD, VAT included where applicable. Your model and infrastructure costs stay separate from LeanCTX.
SDK / OEM
Building a product?
The SDK exposes five stable primitives and six Agent Tools language contracts. Preview operations remain in the Python namespace leanctx_sdk.preview. Production embedding, redistribution and OEM rights require a separate signed written agreement.
Operating scope
Define who runs what.
Confirm responsibility for data, infrastructure and model usage before choosing an offer.
- Your sources and models
- Define source permissions and where prepared input is sent. Model and third-party service charges are separate from LeanCTX.
- Your operating agreement
- Confirm capacity, regions, retention, backup, updates and support. Only the agreed service scope is included.
- Your embedding rights
- Engine and SDK artefacts have separate licences. Use the applicable release terms and any signed commercial agreement.
Before you choose
Pricing questions.
What does Pro add to Community?
Community stays complete for local use. Pro adds Personal Cloud sync and backup plus a 1 GB hosted index, within the limits of your selected plan.
What happens when Pro ends?
Your local Engine, data and memory stay on your devices and keep working with Community. Pro features end after the paid period.
What does Team add?
Team adds a hosted team server with a shared workspace, role-based access, OIDC single sign-on and an audit log, plus a 20 GB shared hosted index, for 1 to 25 seats. It costs $29 per month per seat or $290 per year per seat. On Pro? Upgrade in the billing portal.
What is included in Community?
The public Engine includes deterministic context processing, local safety, reference routing, usage accounting, cache, memory and recovery. You provide your tools, model access and infrastructure.
Where can we run the Engine?
Choose managed operations, your VPC, on-premises or an offline deployment profile according to your requirements. Commercial scope covers the agreed components and services.
Is optional intelligence required?
No. The deterministic public Engine works independently. Optional production intelligence enhances eligible planning, ranking or routing while the host retains policy and budget authority.
What does Enterprise add?
Enterprise adds organization identity, roles and access controls, plus shared policy, approvals, audit and reporting for your supported workflows, with agreed deployment, recovery and operating support. The licensed release and a written annual agreement define the included controls and deployment scope.
Do we need Enterprise or OEM?
Enterprise is the commercial, release-based offer for organizational operation. SDK/OEM covers embedding, redistribution and delivery to third parties, and requires a separate signed written commercial agreement. Applicable artifact licences and the agreement define your rights.
How should we compare cost?
Use the same task and acceptance criteria. Include model input and output, caching, retries and operating effort. Compare cost against accepted outcomes, not token reduction alone.
Start with LeanCTX
Let’s find your setup.
Tell us what you are building. We’ll help clarify the operating scope, integration and licensing.
Local-first. Model-agnostic. Your context.