Package

json-rpc2

JSON-RPC 2.0 server and client library, with HTTP, TCP and Websocket endpoints

v2.0.0, 18 Apr 2020MITCommonJSTypes: NoneWebSockets and realtime

$ npm install json-rpc2

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 1.1k; +9% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 6; Direct, from package.json
Last release: 6 years ago; v2.0.0
GitHub stars: 106; 38 forks
Open issues / PRs: 18 / 3
Contributors: -
Commits, last 52 weeks: 0

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

1,146 downloads last week, 6,133 in the last month. The 12-month change of +9% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 2.0.0, 18 Apr 20206 years ago
First published: -
Last push to GitHub: 18 Apr 20202,351 days before the snapshot
Repository archived: No
Open issues: 18
Open pull requests: 3
Commits, last 52 weeks: 0
Dependents on npm: 23

Major versions

Recent releases

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: >= 10
Runtimes: -
Unpacked size (npm): 57 kB
Dependencies (6): debuglodashes5classjsonparseobject-assignfaye-websocket

Install

npm install json-rpc2

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/json-rpc2@2.0.0/
unpkghttps://unpkg.com/json-rpc2@2.0.0/
esm.shhttps://esm.sh/json-rpc2@2.0.0

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
@standard-server/core The Standard Server contract: transport-agnostic request, response, body, and streaming types with body parsing rules, runtime validators, and SSE helpers shared by every adapter	34.7k	-	5 days ago	ESM only	-
@standard-server/node Node.js HTTP and HTTP/2 adapter for Standard Server: transport-agnostic requests, responses, and streaming on top of IncomingMessage and ServerResponse	34.3k	-	5 days ago	ESM only	-
@standard-server/fetch Fetch API adapter for Standard Server: transport-agnostic requests, responses, and streaming for browsers, workers, Deno, Bun, and any Fetch-based runtime	34.6k	-	5 days ago	ESM only	-
socketcluster-server Server module for SocketCluster	21.1k	-	1 month ago	CommonJS	-
isomorphic-ws Isomorphic implementation of WebSocket	14.4m	-	4 years ago	CommonJS	-
hyper-express High performance Node.js webserver with a simple-to-use API powered by uWebsockets.js under the hood.	5.1k	-	2 months ago	CommonJS	-
ws Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js	201.6m	-	1 month ago	ESM + CommonJS	-
rpc-websockets JSON-RPC 2.0 implementation over WebSockets for Node.js	1.9m	-	4 months ago	ESM + CommonJS	-

Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): downloads_week 1146 < 10000.