# spotify/apollo

Java libraries for writing composable microservices

Repository: https://github.com/spotify/apollo
Canonical: https://ross.abutalabs.com/products/spotify-apollo
Homepage: http://spotify.github.io/apollo/
Language: Java
License: Apache-2.0
License Family: permissive
Topics: java, java-8, framework, http-server
Archived: true
Last push: 2021-09-28T09:11:26+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3954, "days_push": 1800, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1644, forks 205 (observed 2026-08-28T04:05:16.071819+00:00)

## What it is
Apollo is a set of Java libraries from Spotify for writing composable microservices, providing an HTTP server, URI routing, a module system, and testing helpers. The project is archived and no longer accepts external contributions, though it remains in production use at Spotify.

## Use cases
- build restful api microservices in java
- define http routes and request handlers
- compose service modules with lifecycle management
- write tests for java http services

## When to choose
- you are already invested in Apollo-based services at Spotify
- you want a lightweight composable Java microservice framework and accept no future updates

## When to avoid
- you need an actively maintained framework with bug fixes and new features
- you are starting a new Java microservice project today
- you need non-JVM or reactive ecosystem support

## Facets
- artifact type: framework
- maturity: abandoned
- function: web-framework, http-server, routing, middleware, testing
- domain: backend, microservices, web-development, developer-tools
- platform: jvm, cross-platform
- tags: java-8, rest-api, microservices-framework, archived, spotify

## Member repositories
- spotify/apollo (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:16.071819+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 2026-08-30T03:45:56.549484+00:00, confidence not recorded.
  - readme: https://github.com/spotify/apollo (fetched 2026-08-28T04:05:16.071819+00:00, sha 778f6fb496dc)
  - homepage: http://spotify.github.io/apollo/ (fetched 2026-08-29T11:18:59.671954+00:00, sha 510a51709b08)
- Data as of 2026-08-30T08:39:29.467469+00:00.