# omniti-labs/jsend

JSend is a specification for a simple, no-frills, JSON based format for application-level communication.

Repository: https://github.com/omniti-labs/jsend
Canonical: https://ross.abutalabs.com/products/jsend
License: BSD-3-Clause
License Family: permissive
Topics: json
Last push: 2022-01-21T02:11:26+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2791, "days_push": 1686, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1726, forks 135 (observed 2026-08-28T04:05:28.159773+00:00)

## What it is
JSend is a specification for a simple, no-frills JSON format for application-level API responses, defining success, fail, and error response envelopes. This repository hosts the spec along with reference implementations for developers building REST-style APIs.

## Use cases
- standardize json api response format
- consistent error responses for rest api
- structure success and error envelopes in json
- unify backend and frontend response contract
- format json responses for web services

## When to choose
- you want a lightweight, widely recognized convention for json api responses
- you are building a rest api and want consistent success/fail/error shapes
- you want frontend and backend teams to share a common response contract

## When to avoid
- you need richer api standards like JSON:API or HAL with hypermedia support
- your framework already enforces a response format
- you need transport-level or protocol-level messaging standards

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: serialization, json, api-framework
- domain: apis, web-development, backend, documentation
- platform: cross-platform
- tags: json-response-format, api-specification, rest, error-handling-convention, web-server

## Member repositories
- omniti-labs/jsend (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:28.159773+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 2026-08-30T03:32:33.565025+00:00, confidence not recorded.
  - readme: https://github.com/omniti-labs/jsend (fetched 2026-08-28T04:05:28.159773+00:00, sha d209cca03b80)
- Data as of 2026-08-30T08:39:29.467469+00:00.