Is mockserver-monorepo open source?

Yes, licensed under Apache-2.0.

mockserver-monorepo

Active·★ 4.9k·Apache-2.0·Updated 2026-08-04

★ Trending★ Essential

MockServer functions as an HTTP(S) mock server and proxy, enabling development and testing against unavailable or misbehaving APIs. It also facilitates recording, inspecting, and modifying network traffic, along with injecting faults for resilience testing.

mockserver-monorepo is currently grouped under Dev Tooling, which makes it easier to evaluate through workflow fit instead of isolated features alone. Based on the available data, it leans most heavily toward Mock any API including HTTP/1.1, HTTPS, HTTP/2, HTTP/3, gRPC, WebSockets, and message brokers. and Develop and test applications even when dependent systems are unavailable, incomplete, or hard to reproduce.. The listed license is Apache-2.0, which is useful when adoption constraints matter. It also shows measurable community traction with 4.9k GitHub stars.

#API mocking#Proxy#HTTP/S#gRPC#Chaos engineering#Testing#Docker#Kubernetes

Features

01Mock any API including HTTP/1.1, HTTPS, HTTP/2, HTTP/3, gRPC, WebSockets, and message brokers.

02Act as a port forwarding, web, HTTPS, and SOCKS proxy with full visibility of encrypted traffic.

03Inject latency, dropped connections, and failures to test system resilience against misbehaving dependencies.

04Mock chat-completion APIs for major AI platforms like OpenAI, Anthropic, Gemini, and Azure OpenAI.

05Deploy seamlessly across Docker, Helm/Kubernetes, JAR, WAR, or as a standalone CLI application.

Why choose it

+Mock any API including HTTP/1.1, HTTPS, HTTP/2, HTTP/3, gRPC, WebSockets, and message brokers.

+Develop and test applications even when dependent systems are unavailable, incomplete, or hard to reproduce.

+Covers 6 supported environments or platforms, which is helpful for broader deployment needs.

+Ships with a public repository and a Apache-2.0 license, which makes adoption and review easier.

Trade-offs

!There are at least 8 related tools in the same category, so the best choice is easier to make after side-by-side comparison.

Compatibility

Java

Runtime

Verified via docs

Docker

Deployment

Verified via docs

Kubernetes

Orchestration

Verified via docs

Python

Client

Verified via docs

Node.js

Client

Verified via docs

Linux / macOS

Verified via docs

Quick start

$ docker run -d --rm -p 1080:1080 mockserver/mockserver

Use cases

↳Develop and test applications even when dependent systems are unavailable, incomplete, or hard to reproduce.

↳Proxy real traffic to record, inspect, and modify requests and responses in flight with interactive breakpoints.

↳Perform chaos engineering by injecting latency, dropped connections, and errors to evaluate how applications handle dependency failures.

How it compares

≈mockserver-monorepo sits in the Dev Tooling category, so it makes more sense to evaluate it alongside tools like dbx instead of in isolation.

≈If your main need is closer to "Develop and test applications even when dependent systems are unavailable, incomplete, or hard to reproduce.", that use case is a better lens for comparison than broad feature checklists alone.

≈mockserver-monorepo uses a Apache-2.0 license, and community traction are both easier to judge in category context.

Alternatives

dbx★ 13.2k

20 MB lightweight cross-platform database client for 70+ databases, including MySQL, PostgreSQL, SQLite, Redis, MongoDB, DuckDB, SQL Server, and Dameng. Built-in AI, MCP Server, CLI, desktop and Docker. | 轻量级跨平台数据库管理工具，支持 MySQL、PostgreSQL、SQLite、Redis、MongoDB、达梦等 70+ 数据库，提供桌面端、Docker、CLI、内置 AI 助手和 MCP Server。

Features

Why choose it

Trade-offs

Compatibility

Quick start

Use cases

How it compares

Alternatives

Related searches

Comments

Features

Why choose it

Trade-offs

Compatibility

Quick start

Use cases

How it compares

Alternatives

Related searches

Comments