# json-schema-org/json-schema-spec

The JSON Schema specification

Repository: https://github.com/json-schema-org/json-schema-spec
Canonical: https://ross.abutalabs.com/products/json-schema-spec
Homepage: http://json-schema.org/
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: json-schema, api-documentation, json, validation, jsonschema
Last push: 2026-08-26T19:10:22+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4088, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5126, forks 453 (observed 2026-08-28T04:09:10.957175+00:00)

## What it is
The official JSON Schema specification repository, containing the Markdown sources for the JSON Schema IETF Internet Draft documents. JSON Schema is a vocabulary for validating, annotating, and manipulating JSON documents.

## Use cases
- validate  documents against a schema
- define constraints for  data structures
- document  api payloads
- understand  schema specification keywords
- contribute to the  schema standard
- build tooling that implements  schema

## When to choose
- you need the authoritative specification text for implementing JSON Schema
- you want to follow or contribute to the next version of the JSON Schema standard
- you are building a JSON Schema validator or generator and need normative rules

## When to avoid
- you need a library to validate JSON in a specific programming language - use a validator implementation instead
- you want end-user documentation or tutorials rather than the normative spec
- you need the latest released I-Ds - those are published on the JSON Schema website

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, api-documentation
- domain: apis, documentation, developer-tools, parsers
- platform: cross-platform
- tags: -schema, specification, ietf-internet-draft, data-validation, standards

## Member repositories
- json-schema-org/json-schema-spec (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:10.957175+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:02:04.041351+00:00, confidence not recorded.
  - readme: https://github.com/json-schema-org/json-schema-spec (fetched 2026-08-28T04:09:10.957175+00:00, sha 81ab08d2a627)
  - homepage: http://json-schema.org/ (fetched 2026-08-29T08:56:56.414865+00:00, sha 0ec49e1a6bc5)
  - site_page: https://json-schema.org/docs (fetched 2026-08-29T08:56:56.423927+00:00, sha 648647392425)
- Data as of 2026-08-30T08:39:29.467469+00:00.