Comparison
Haystack vs rea
rea has more GitHub stars (248,002 vs 26,745). rea was updated more recently (last commit 1h ago). Data comes straight from GitHub and refreshes daily.
Haystack
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control…
$
pip install haystack-ai
rea
Reverse engineer anything with agents, from app behavior down to native binaries.
$
npx -y rea-agents@latest analyze-javascript-application /absolute/path/to/app --json| Metric | Haystack | rea |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 26,745 | 248,002 |
| Stars, last 7 days | — | — |
| Forks | 3,284 | 62,199 |
| Upvotes | 0 | 0 |
| Language | Python | TypeScript |
| License | Apache-2.0 | MIT |
| Last commit | 9h ago | 1h ago |
| Created | Nov 2019 | Apr 2026 |
| Categories | Memory & knowledge, AI & LLM tooling, Search & web | AI & LLM tooling, Memory & knowledge |