json-rpc
JSON-RPC transport implementation
Decision gist · record as of 2026-08-14
Yes, if you need JSON-RPC protocol handling and will supply your own transport. The zero-dependency design and broad Python version support make it solid for protocol-only use. However, aging maintenance (last release 2023-06-11) means you should verify compatibility with your target Python versions and test thoroughly before adopting in new projects.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- You must provide your own transport layer (HTTP server, socket, message queue); this package handles only protocol parsing and method dispatch.
- Low friction: pure Python with no runtime dependencies and distributed as a wheel.
- Maintenance is aging—last release 2023-06-11, last commit 2025-03-17—but repository remains active and unarchived.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute freely in commercial and private projects with minimal restrictions.
last release 2023-06-11 (1160 days) · last repo commit 2025-03-17 · 490 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 7,417,404 downloads/mo, #1,743 on PyPI
Alternatives
Verify before relying
pip install json-rpc
from jsonrpc import JSONRPCResponseManager, dispatcher
@dispatcher.add_method
def add(a, b):
return a + b
response = JSONRPCResponseManager.handle(
'{"jsonrpc": "2.0", "method": "add", "params": [2, 3], "id": 1}',
dispatcher
)- Whether aging maintenance (1160 days since last release) affects compatibility with Python versions beyond 3.8.
- Current test coverage status and whether 200+ tests pass on modern Python versions.
- Whether optional Django and Flask support remains functional with current framework versions.
What it is and what it does
json-rpc is a pure-Python implementation of JSON-RPC 2.0 and 1.0 protocol specifications. It provides a dispatcher to register callable methods and a response manager to parse incoming JSON-RPC requests and generate compliant responses. The package handles protocol details—request validation, error formatting, batch handling—but deliberately excludes transport; you pair it with external libraries to build a working client or server.
The library supports Python 2.6+, 3.3+, and PyPy, with optional integration for Django and Flask. It has no runtime dependencies, making it lightweight to embed. The protocol-only design means you retain full control over how requests and responses travel—ideal when you need JSON-RPC semantics but a non-standard transport layer.
Use it for
- Build a JSON-RPC 2.0 server by pairing the dispatcher with an HTTP handler or framework.
- Implement a JSON-RPC client that sends requests and parses responses via your chosen transport.
- Add RPC method registration and validation to an existing application without imposing transport choices.
- Handle batch JSON-RPC requests and generate spec-compliant error responses.
- Integrate JSON-RPC into a microservice or inter-process communication layer on a custom transport.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need JSON-RPC protocol handling and will supply your own transport.
The zero-dependency design and broad Python version support make it solid for protocol-only use. However, aging maintenance (last release 2023-06-11) means you should verify compatibility with your target Python versions and test thoroughly before adopting in new projects.
Install
json-rpc on PyPI
Before you install
Low friction: pure Python with no runtime dependencies and distributed as a wheel. Maintenance is aging—last release 2023-06-11, last commit 2025-03-17—but repository remains active and unarchived.
You must provide your own transport layer (HTTP server, socket, message queue); this package handles only protocol parsing and method dispatch.
License in practice
MIT license is permissive; you can use, modify, and distribute freely in commercial and private projects with minimal restrictions.
Quickstart
pip install json-rpc
from jsonrpc import JSONRPCResponseManager, dispatcher
@dispatcher.add_method
def add(a, b):
return a + b
response = JSONRPCResponseManager.handle(
'{"jsonrpc": "2.0", "method": "add", "params": [2, 3], "id": 1}',
dispatcher
)Verify before relying
- Whether aging maintenance (1160 days since last release) affects compatibility with Python versions beyond 3.8.
- Current test coverage status and whether 200+ tests pass on modern Python versions.
- Whether optional Django and Flask support remains functional with current framework versions.
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Aging 1,160 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 7,417,404 / month, #1,743 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: ConsoleLicense :: OSI Approved :: MIT LicenseNatural Language :: EnglishOperating System :: OS IndependentProgramming Language :: Python :: 2.6Programming Language :: Python :: 2.7Programming Language :: Python :: 3.3Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: Libraries :: Python Modules |
Evidence: json_rpc-1.15.0-py2.py3-none-any.whl
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