Source: https://seerepo.com/uses/opensearch
Markdown source: https://seerepo.com/uses/opensearch.md
Description: 10 public repos that SeeRepo read use OpenSearch. It's used most with Postgres, Redis, and MCP.

# Open source repos that use OpenSearch

10 public repos that SeeRepo read use OpenSearch. It's used most with Postgres, Redis, and MCP.

## Used most with

- Postgres: 6 repos
- Redis: 5 repos
- MCP: 5 repos
- MySQL: 4 repos
- Gin: 3 repos
- go-redis: 3 repos
- SQLite: 3 repos
- Google: 3 repos

## The repos, by stars

1. [infiniflow/ragflow](https://seerepo.com/r/infiniflow/ragflow): Go · 94,073 stars · 2.1% signed by AI — RAGFlow is an agent-native database: a Retrieval-Augmented Generation (RAG) engine that grew into context infrastructure.
2. [mem0ai/mem0](https://seerepo.com/r/mem0ai/mem0): Python · 68,697 stars · 3.6% signed by AI — The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.
3. [juspay/hyperswitch](https://seerepo.com/r/juspay/hyperswitch): Rust · 45,762 stars · 3.3% signed by AI — Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation
4. [Tencent/WeKnora](https://seerepo.com/r/Tencent/WeKnora): Go · 36,684 stars · 4.3% signed by AI — Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.
5. [backstage/backstage](https://seerepo.com/r/backstage/backstage): TypeScript · 34,793 stars · 3.3% signed by AI — Backstage is an open framework for building developer portals
6. [vercel/vercel](https://seerepo.com/r/vercel/vercel): TypeScript · 16,547 stars · 2.6% signed by AI — Develop. Preview. Ship.
7. [trinodb/trino](https://seerepo.com/r/trinodb/trino): Java · 13,493 stars — Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
8. [ccfos/nightingale](https://seerepo.com/r/ccfos/nightingale): Go · 13,470 stars · 0.1% signed by AI — Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.
9. [langchain4j/langchain4j](https://seerepo.com/r/langchain4j/langchain4j): Java · 13,378 stars · 1.2% signed by AI — LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
10. [NangoHQ/nango](https://seerepo.com/r/NangoHQ/nango): TypeScript · 13,165 stars · 4.4% signed by AI — Connect your agents & product to 1,000 APIs.

## Frequently asked questions

### What is the most popular open source repo that uses OpenSearch?

infiniflow/ragflow, with 94,073 stars on GitHub.

The proof: [infiniflow/ragflow on GitHub](https://github.com/infiniflow/ragflow)

### What other technologies is OpenSearch used with?

With Postgres (6), Redis (5), MCP (5), MySQL (4), and Gin (3), out of the 10 repos that use it.

### What languages are the repos that use OpenSearch written in?

Go (3), TypeScript (3), Java (2), Python (1), and Rust (1).

### How many repos that use OpenSearch have commits signed by AI?

9 of the 10; the most, NangoHQ/nango, with 4.4% of its commits.

The proof: [the commits each tool signed in NangoHQ/nango](https://seerepo.com/r/NangoHQ/nango/ai)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.