# briandilley/jsonrpc4j

JSON-RPC for Java

Repository: https://github.com/briandilley/jsonrpc4j
Canonical: https://ross.abutalabs.com/products/jsonrpc4j
Language: Java
License: MIT
License Family: permissive
Last push: 2025-11-24T12:26:19+00:00

## Health v2 (maintenance only)
Score: 47/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 53, release rhythm 8, longevity 100
- inputs: {"age_days": 4702, "days_push": 282, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1117, forks 451 (observed 2026-08-28T04:03:38.883403+00:00)

## What it is
jsonrpc4j is a Java library for implementing JSON-RPC 2.0 servers and clients, using Jackson for JSON serialization. It supports HTTP, streaming, socket, and portel transports, with annotations, dynamic client proxies, and Spring Framework integration.

## Use cases
- expose java services as json-rpc over http
- call a remote json-rpc api from java
- add json-rpc endpoints to a spring application
- implement json-rpc over raw sockets or streams
- create dynamic client proxies for remote services

## When to choose
- you need JSON-RPC 2.0 in a Java or Spring application
- you want multiple transports (HTTP, streams, sockets) from one library
- you prefer annotation-based service exposure with dynamic proxies

## When to avoid
- you need REST or GraphQL rather than JSON-RPC
- you're not on the JVM
- you need a modern async/reactive RPC stack like gRPC

## Facets
- artifact type: library
- maturity: stable
- function: rpc, serialization, http-server, http-client, middleware
- domain: backend, apis, web-development, developer-tools
- platform: jvm, cross-platform
- tags: json-rpc, jackson, spring-integration, streaming-server, dynamic-proxies

## Member repositories
- briandilley/jsonrpc4j (main) score 47

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:38.883403+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 2026-08-30T06:41:52.659307+00:00, confidence not recorded.
  - readme: https://github.com/briandilley/jsonrpc4j (fetched 2026-08-28T04:03:38.883403+00:00, sha d3ba89b20059)
- Data as of 2026-08-30T08:39:29.467469+00:00.