Ross ROSS = Recommend OSS · open-source software intelligence for agents

finos/legend

The Legend project observed · 2026-08-28

github.com/finos/legend · homepage · HTML · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

77/100

  • Activity 99
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2456
  • days_rel: n/a
  • days_push: 9
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1543 stars · 263 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Legend is an end-to-end data platform from FINOS (originated at Goldman Sachs) covering the full data lifecycle: modeling, curation, querying, governance, and sharing. It includes Legend Studio (a visual data modeling editor), Legend Query (drag-and-drop self-service querying), an execution engine, and code translation to JSON Schema, Protobuf, and AVRO.

Use cases

  • build governed data models with a visual editor
  • let business users query data without SQL
  • generate APIs from data models
  • translate data models to JSON Schema, Protobuf, or Avro
  • track data lineage and provenance
  • break down data silos between business and engineering teams

When to choose

  • you need a governed, self-service data platform with shared business vocabularies
  • you want to bridge data modeling between business and engineering teams
  • you need model-to-schema interoperability across systems
  • you want lineage and entitlement-aware data access built in

When to avoid

  • you need a lightweight single-purpose ETL or query tool
  • your team cannot operate a multi-component platform (Studio, Engine, SDLC, Depot)
  • you only need ad-hoc analytics without formal data modeling

Facets

application · maturity active

data-science etl api-framework search-engine documentation serialization data-science databases apis developer-tools self-hosted cloud jvm data-modeling data-governance data-platform data-catalog legend-pure fintech metadata-management data-engineering web-server docker

3 sources

Member repositories

RepositoryRoleHealth v2
finos/legendmain77

For agents

markdown · JSON · MCP: product_card(name="finos/legend")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem