pre-mvp
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Labelled property graph platforms

Property-graph ergonomics should not require a separate knowledge world.

LPG platforms make graph traversal and application development approachable through labelled nodes, relationships, and languages such as Cypher and GQL. Legra preserves that interface while connecting it to RDF meaning, inference, governed workspaces, provenance, and distributed data logistics.

Where this category excels

Accessible graph models for developers and application teams.

Traversal-oriented querying and strong graph-application ecosystems.

Operational graph workloads, algorithms, and visualization tools.

Where Legra extends the model

Cypher and GQL can benefit from ontology-backed meaning and Datalog-grade inference.

Branches, commits, validation, search, tasks, and provenance share one versioned workspace state.

LPG applications can participate in sovereign multi-party agreements and Data Product exchange.

Questions to use in an evaluation

Will the graph remain an application database, or become shared organizational knowledge?

Do business concepts need portable semantics beyond one database schema?

Must agents and workflows operate on reviewed branches with durable evidence?

Beyond database features

Graph features are only the substrate.

Legra also organizes the work that uses and changes the graph, the evidence needed to review that work, and the economic relationships that move data and value between parties. That operational layer is what turns graph infrastructure into data logistics infrastructure.

A complete history of the work

Legra keeps each piece of work together with the changes it made, the evidence behind it, and any costs incurred. That history stays private to the workspace and cannot be quietly rewritten.

  • Work by people, AI agents, and automated services appears in one traceable record.
  • See what is happening now, then return to the same history later for review.
Explore activity history

Layered provenance

Full provenance connects signed commits and exact deltas to task and transaction lineage, actors, delegated authority, imports, and every retained rule and premise behind derived facts.

  • Evidence answers who or what acted, on whose authority, from which inputs, and with which result.
  • Commit, activity, fact-origin, and derivation evidence remains attached to the workspace and its history.
Reasoning and derivations

Composable transaction pricing

The admitted total composes independently priced data value, compute, storage, custody, transport, external I/O, rights, and operator services instead of treating bytes as the value of data.

  • Charges, credits, refunds, penalties, and commissions contribute to the final amount.
  • Zero is an explicit price through the same accounting path, including self-operated work.
Data logistics infrastructure

Multidirectional token settlement

Every resource-consuming operation follows one path: measure, price, authorize, execute, record, and settle. Detailed evidence stays with the workspace instead of one central billing ledger.

  • Tokens can flow to data owners, infrastructure and service Operators, and the NetworkOperator treasury.
  • The same evidence supports internal chargeback and external settlement; subscriptions supply token packages rather than feature gates.
Data Products and contracts

Product-level technical deep dive

Labelled property graph platforms: product matrix.

This matrix includes only products in the same directly comparable family. Adjacent product types belong in their own guide instead of making one oversized, apples-and-oranges scorecard.

Legra

Sovereign, content-addressed graph data logistics infrastructure

RustProprietary

ArangoDB

Multi-model database with native graph, document, and key/value support

C++Apache 2.0 + Enterprise

LadybugDB

Embedded columnar graph database — 'DuckDB for graphs'

UnknownOpen Source (MIT)

GraphQLite

SQLite extension adding graph database capabilities via Cypher

COpen Source (MIT)
FeatureLegraArangoDBLadybugDBGraphQLite
Architecture
Peer-to-peer distribution
No central server required
Data Model & Query
RDF / Linked Data native
Full-text search
Query Languages
RDF 1.2
SPARQL 1.1
SPARQL 1.2
RDF-star (RDF*)
openCypher
ISO GQL
SQL
Graph Store Protocol
GraphQL
Proprietary query language
Versioning & Branching
Git-style branching
Immutable commits
Delta / diff queries
Security & Encryption
Decentralized identity (DIDs)
planned
Enterprise & Operations
High-availability clustering
OWL / RDFS reasoning engine
Datalog reasoning
SWRL / RIF rules
LPG reasoning
SHACL / ShEx validation
Managed cloud offering
Visual graph explorer / GUI tools
Production-ready today
AI & Vector
Built-in vector search
Versioned vector indexes
Encrypted vector search
Data Model Breadth
Property graph / LPG support
ACID transactions
Immutable transaction history
Indexing & Performance
Ad-hoc index creation

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