opensolon/solon

Health v2 · maintenance only

Adoption not part of the score

2774 stars · 279 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Solon is a Java enterprise application development framework built from scratch as a lighter, faster alternative to Spring Boot/Spring Cloud. It provides an IOC/AOP container, web MVC, RPC remoting, cloud microservice plugins, and AI/LLM (MCP, OpenAI) integration, supporting Java 8 through 26 and GraalVM native image.

Use cases

• build rest apis in java without spring
• lightweight java microservices framework
• replace spring boot with faster startup and smaller packages
• build mcp server in java
• java framework with high concurrency and low memory
• build rpc services in java
• integrate openai llm into java app
• graalvm native image java web app

When to choose

• you want a Spring Boot alternative with faster startup, lower memory, and smaller artifacts
• you need microservices, RPC, or cloud-native Java apps with a plugin-based ecosystem
• you need broad JDK compatibility (Java 8-26) or GraalVM native image support
• you are building AI/LLM features like MCP servers or OpenAI integrations in Java

When to avoid

• your team is deeply invested in the Spring ecosystem and its third-party integrations
• you need a framework with a much larger community and hiring pool
• you rely on Spring-specific libraries or conventions that have no Solon equivalent

Facets

framework · maturity active

web-framework api-framework rpc middleware routing websocket mcp llm-inference plugin-system web-development backend microservices developer-tools large-language-models apis jvm cross-platform cloud spring-alternative no-servlet ioc-container aop graalvm-native-image rest-api solon-cloud mcp-server openai lightweight high-concurrency ioc docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="opensolon/solon")