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The LEF Engine — Licensing

Version 7.5 · Last updated May 16, 2026

What you're licensing

Before anything else, be precise about what you want. The LEF Engine is not one product. It is a portfolio of distinct, interlocking assets. Different assets have different terms. Conflating them creates confusion that tends to collapse deals that should have worked.

Two categories matter before any conversation begins.

The substrate

Not licensable, not for sale. The LEF Ai meta-engine, the patent portfolio, the calibration corpus, and the running DCFN engine builds themselves (DCFN-Patents, DCFN-Research, DCFN-Bio, future DCFN-X) are the intellectual property of Living Eden Frameworks LLC. The substrate is what powers every deployment. It is not available for outright sale, acquisition, transfer, or sublicensing under any of the routes below.

Deployment surfaces

Licensable via the routes below. What customers can license is the operation of named deployments within defined fields of use, as products embedded in their platforms, as API modules, or as Private Enclave JDA deployments. The license grants the right to use; it does not grant the underlying engine.

Inquiries framed as "acquire the engine," "purchase DCFN-Patents," or "transfer the LEF Ai substrate" are declined by default. The substrate stays with Living Eden Frameworks LLC; only the routes below grant rights to operate on top of it.

Routes Living Eden Frameworks LLC will consider

Route 1 — Non-Exclusive Field License Considered

You receive the right to deploy the LEF Engine, or a specific deployment such as DCFN, within a defined field of use. Living Eden Frameworks retains ownership of all patents, the calibration corpus, and all other deployments. You are not the only licensee — other parties may hold licenses in different fields at the same time.

What this looks like in practice

  • A research platform licenses DCFN for use in its scholarly discovery product.
  • An academic publisher licenses the CTE framework for structural gap detection in its editorial workflow.
  • A government technology integrator licenses LEF ISB for a specific state contract.
  • A materials R&D firm licenses DCFN-Materials for use in its internal discovery pipeline.

Why this route is considered

Non-exclusive licensing preserves optionality. Multiple narrowly scoped non-exclusive licenses across different markets create more long-term value than a single broad exclusive arrangement.

Typical terms

  • Annual licensing fee per field of use.
  • Field of use defined narrowly and precisely.
  • No right to sublicense.
  • No right to assign without consent.
  • Perpetual license back to Living Eden Frameworks for any improvements the licensee makes to the engine.

Start a Route 1 conversation: sales@livingedenframeworks.com

Route 2 — Exclusive Field License Retired

Retired as of May 16, 2026.

Route 3 — Deployment / Product License Default

If your users are comfortable logging into the DCFN portal and using the deployment directly, the most efficient path is a standard deployment license through the published tier structure or a negotiated product license built on the same framework. Route 3 is for customers who want to use a named deployment as a hosted product, not for partners who require programmatic access or private infrastructure.

You receive a license to use a specific deployment surface of the LEF Ai Engine — for example DCFN-Patents, DCFN-Research, DCFN-Bio, or another named deployment — as a product or feature within your own business. The deployment runs in Living Eden Frameworks' infrastructure. You are licensing the right to operate that deployment; you are not receiving the engine substrate itself.

What you get

  • Access to the named deployment's ingestion pipeline.
  • The deployment's output formats and artifacts.
  • Hosted operation by Living Eden Frameworks during the term of the license; no container and no self-hosting requirement.
  • The right to expose those outputs to your users inside your product or internal workflows, within a defined field of use.

What you do not get

  • Any interest in the LEF Ai substrate, the patent portfolio, or the calibration corpus.
  • A copy of the running engine build or a container image you can host yourself.
  • Rights to build derivative engines or new DCFN-x deployments.
  • Rights to other deployments beyond the one or ones named in the license.
  • Engine Bridge outputs involving the licensed deployment; those require separate commercial terms.

Typical terms

  • Flat-rate 12-month license tiers with defined run pools or usage ceilings.
  • Narrowly defined field of use.
  • Non-exclusive license, no sublicensing, and no assignment without consent.
  • Perpetual license back to Living Eden Frameworks for improvements outside the licensee's field of use.

DCFN-Patents retail tiers under Route 3

For evaluators and internal teams that do not need API integration or a private enclave deployment, DCFN-Patents is sold on the published 12-month tier schedule. Retail-tier purchases are Route 3 licenses to operate DCFN-Patents within the customer's internal field of use. Mid-window top-up packs may be offered without restarting the original 12-month term.

Tier 1 data-feedback loop

Tier 1 runs include a data-feedback loop: anonymized signal from each run — corpus traversals, gap classifications, structural-void patterns — seeds back into LEF Ai Engine training, so the substrate that powers your next run is informed by every run that came before it. Customer portfolio content itself is not republished; what flows back is the engine's own structural read of how the run behaved against the corpus.

Flat-rate purchase posture

All Route 3 retail-tier DCFN-Patents purchases are flat-rate 12-month transactions, not auto-renewing subscriptions. This aligns with the procurement posture of legal and patent-attorney buyers and preserves an explicit re-up decision at the end of each term.

Route 4 — API / SaaS Module Partnership Preferred

A named deployment of the LEF Engine operates as a hosted module inside your platform. Your application calls a documented API, the engine runs in Living Eden Frameworks' infrastructure, and structured results are returned to your product for rendering inside your own UX.

This route is intended for established SaaS platforms embedding LEF capabilities into their own customer-facing product. It is not intended for internal-only use. If your team is comfortable using the DCFN portal directly, Route 3 is the better fit.

What you get

  • Access to specific API methods tied to one or more named deployments.
  • Programmatic triggering of runs and structured result retrieval.
  • Service-level terms covering availability, rate limits, and versioning.
  • Non-exclusive rights to expose features in your product that are powered by those API calls.
  • Full artifact delivery per run. SaaS partners receive every produced artifact for a run at once (L1 landscape + every L2 memo + every provisional + cover note). Retail Tier 1 customers click through to select which L2 artifacts to purchase; Route 4 partners get the full set.

What you do not get

  • Any rights in the LEF Ai substrate, patents, calibration corpus, or running engine builds.
  • The right to host the engine yourself or create derivative engines.
  • Any exclusivity in your market; Living Eden Frameworks may offer the same API to other qualified partners.
  • Any right to present the API route as a substitute for internal-use public tiers.

Commercial structure

Why this route exists

This route is for partners who need programmatic integration and full ownership of the user experience, but do not need the engine deployed inside their own confidential-compute environment.

Invitation-gated; reach sales@livingedenframeworks.com for an invite code.

Route 5 — Strategic Run Engagement Retired

Retired as of May 16, 2026.

Route 6 — Private Enclave JDA Preferred

Route 6 is reserved for institutional partners who require the DCFN substrate to run inside their own confidential-compute environment. This is the enclave route specifically. It is not the API / SaaS route. Partners who only need programmatic access through Living Eden Frameworks-hosted infrastructure should use Route 4.

A Route 6 partner receives a private deployment of the relevant DCFN substrate inside a trusted execution environment chosen by the partner, together with the engineering work required to integrate that private deployment to the partner's data shape and operational environment.

Private Enclave Deployment

The DCFN substrate deploys inside the partner's chosen Trusted Execution Environment, such as AWS Nitro Enclaves, GCP Confidential Space, or Azure Confidential VMs. This includes enclave deployment, attestation-policy configuration, partner-specific connector work, and dedicated engineering through production deployment.

Commercial structure

Data Readiness Assessment (mandatory prerequisite)

Every Route 6 partnership begins with a paid Data Readiness Assessment engagement (pricing per the Commercial structure block above). The Assessment produces four deliverables:

  • A scored data assessment across 12 dimensions.
  • A gap analysis between the partner's current data state and an integration-ready state.
  • A data formatting blueprint with concrete schema specifications for the connector.
  • A complexity-tier assignment (Modern CDE / Legacy Standard / Legacy Heavy) with rationale, which determines the Annual Access Fee tier.

Operational telemetry (always-on)

To maintain service quality and diagnose processing failures, LEF collects operational telemetry for every Assessment and engine run: the processing stage reached, error classification, run duration, and assigned complexity tier. This telemetry contains no portfolio content — no patent identifiers, claim text, or document contents — and the partner's identity is one-way cryptographically hashed before storage. This collection is always-on and independent of the optional structural-pattern-sharing election, which is a separate opt-in that governs the sharing of structural portfolio patterns.

Three-Layer IP architecture (non-negotiable)

  • Layer 1 — LEF Substrate Architecture: retained by Living Eden Frameworks LLC. The DCFN substrate, engine architecture, canonical-element graph, connector pattern library, and any improvements to them remain LEF-owned. The patent-protected mechanisms describing how the engine works. No license is granted to the substrate itself.
  • Layer 2 — LEF Ai.E (the meta-engine): retained by Living Eden Frameworks LLC. LEF Ai.E is the self-evolving application that operates the Layer 1 substrate across every DCFN build. While Layer 1 describes the mechanisms, Layer 2 IS the running engine that executes them and continuously refines its own behavior across runs. Proprietary application, trade-secret implementation, and self-evolution behavior. No license is granted to LEF Ai.E at any tier or route.
  • Layer 3 — Connector Instance License: the partner receives a perpetual, irrevocable, worldwide, royalty-free, paid-up, non-exclusive, non-transferable license to use the specific Connector Instance built for that partner under the JDA, solely within the scope of that partner's use of the DCFN substrate under the agreement and any successor agreement. The architectural patterns underlying the Connector Instance remain LEF-owned.

Cryptographic-erasure attestation at termination

At termination of the JDA, whether by expiry, breach, or mutual decision, the partner must provide cryptographic attestation that the DCFN substrate workload and the partner Connector Instance artifacts have been decommissioned. Failure to provide attestation is an uncapped liability carve-out in the JDA contract.

AI substrate election

Until the cross-substrate benchmark program is complete, all Route 6 JDA deployments run against Anthropic Claude as the AI substrate. When the election capability ships, Route 6 partners may elect their AI substrate at JDA signature time, with that choice disclosed in the contract.

When this makes sense

This route is appropriate when partner data cannot leave the partner's environment, when enclave deployment is required by policy or procurement, or when the deployment will operate as internal infrastructure inside the partner's security boundary.

Not sure which route fits? Start at licensing@livingedenframeworks.com.

Routes Living Eden Frameworks will not accept

These are not negotiating positions. They are architectural constraints. Agreements that violate them will not be signed regardless of the number on the table.

  • Outright sale, acquisition, or transfer of the engine substrate. This applies across the LEF Ai meta-engine, the patent portfolio, the calibration corpus, and the running engine builds powering every DCFN deployment and any future DCFN-x. The substrate is not for sale at any price.
  • Exclusive license broad enough to block other deployments. No license will be granted that prevents Living Eden Frameworks from operating the LEF Ai substrate or any DCFN-x deployment in other markets or fields of use.
  • Calibration corpus transfer by default. The calibration corpus is not included in any software or patent license by default and must be negotiated separately if ever included.
  • Sublicensing rights. No licensee receives the right to sublicense the engine or any component of it to a third party.
  • Any license that imposes confidentiality on the existence of the relationship. Financial terms may be confidential; the existence of the relationship itself may not be hidden.
  • Patent assignment of individual filings detached from the arc. The provisional stack is structurally interdependent; individual assignment detached from the full arc is not acceptable.

What any license must include

Regardless of route, every license agreement must include the following:

  • Perpetual license back. Any improvements, adaptations, or derivative works the licensee makes to the engine or its components must include a perpetual, royalty-free, non-exclusive license back to Living Eden Frameworks for use outside the licensee's field of use.
  • Transparency requirement. Products built on the engine must disclose that structural intelligence is powered by patented technology. Brand attribution to LEF and the specific deployment remains required on generated outputs regardless of route or tier.
  • Human-in-the-loop commitment. No licensee may configure the engine to apply its recommendations automatically without human review.
  • Service availability posture. Living Eden Frameworks does not silently substitute lower-capability AI substrates, simpler heuristics, or partial outputs during upstream outages. Failed runs do not count against run pools.
  • Audit right. Living Eden Frameworks retains the right to audit the licensee's use of the engine against the field-of-use definition and the terms of the license, with 30 days notice, no more than once per year.
  • Patent prosecution cooperation. During pending patent prosecution, the licensee agrees to cooperate with Living Eden Frameworks on third-party inquiries related to the licensed patents arising from the licensee's use.
  • Full supplemental claim acknowledgment. Any license involving DCFN-x, LEF-x, or any other deployment must expressly acknowledge the claim scope of U.S. Provisional 64/043,294, 64/045,185, 64/061,710, and 64/061,715 as part of the patent stack protecting the licensed surface.