apache/ossie
Apache Ossie, industry wide specification effort to standardize how we exchange semantic metadata across analytics, AI and BI platforms, providing a vendor neutral, single source of truth for semantic data observed · 2026-08-28
Health v2 · maintenance only
61/100
- Activity 99
- Release rhythm 35
- Longevity 20
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 288
- days_rel: n/a
- days_push: 7
- n_releases_24m: 0
Adoption not part of the score
1971 stars · 249 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Apache Ossie (incubating, formerly Open Semantic Interchange) is a vendor-neutral JSON/YAML specification for exchanging semantic metadata—metrics, dimensions, joins, and AI context—across analytics, AI, and BI platforms. The repository hosts the core spec, machine-readable schemas, reference converters (dbt, GoodData, Polaris, Salesforce), example models, and validation tooling.
Use cases
- standardize metric definitions across BI tools
- share semantic models between dbt and other platforms
- give LLM agents consistent business metric context
- avoid redefining KPIs in every dashboard
- convert semantic models between vendor formats
- validate semantic model files against a schema
When to choose
- you need one source of truth for business metrics across multiple analytics/AI tools
- you want to avoid vendor lock-in for semantic layer definitions
- you're building AI agents that need reliable, consistent business logic context
When to avoid
- you need a full semantic layer engine that executes queries—Ossie is a specification, not a runtime
- your stack is single-vendor with no interchange needs
- you need a mature, finalized standard—the project is incubating and still evolving
Facets
library · maturity active
serialization data-science developer-tools analytics large-language-models data-science apis python cross-platform semantic-layer semantic-metadata bi metrics specification interoperability yaml json-schema vendor-neutral data-engineering
3 sources
- readme: https://github.com/apache/ossie · fetched 2026-08-28 · 0d169b438579
- homepage: https://ossie.apache.org/ · fetched 2026-08-29 · dfb998837959
- site_page: https://ossie.apache.org/index.html · fetched 2026-08-29 · dfb998837959
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| apache/ossie | main | 61 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem