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MCP server · RAG

Kb Arena

by · github.com/xmpuspus/kb-arena

Benchmark 19 retrieval architectures (vector, contextual, QnA, knowledge graph, LightRAG, hybrid, RAPTOR, PageIndex, BM25, metadata-filtered, temporal, rerank, HyDE, multi-query, late-interaction, SPLADE, agentic, plus two quantum-inspired rerankers) on your own docs. Citable evidence bundles, bootstrap CIs, significance tests.

Unclaimed benchmarkchromadbclidocument-retrievalevaluationgraphraghybrid-searchhyperparameter-optimizationinformation-retrievalknowledge-graphllmmcpneo4jpythonragrag-evaluationretrievalretrieval-augmented-generationstatistical-significancevector-search
InstallView source
39Low

Scored 20 days ago · breakdown

About Kb Arena

Kb Arena is an MCP server published by xmpuspus in the RAG category: benchmark 19 retrieval architectures (vector, contextual, QnA, knowledge graph, LightRAG, hybrid, RAPTOR, PageIndex, BM25, metadata-filtered, temporal, rerank, HyDE, multi-query, late-interaction, SPLADE, agentic, plus two quantum-inspired rerankers) on your own docs. Citable evidence bundles, bootstrap CIs, significance tests.

The repository has 12 stars and 0 forks, with the last commit a month ago. Recent commit activity is the strongest signal that reported issues will get attention.

Install

From source
git clone https://github.com/xmpuspus/kb-arena

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

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Releases

v0.11.0KB Arena 0.11.0: nineteen strategies, and a run that repeats itself · 6 Sep 2026Forty-two pull requests closed the one Critical and all thirteen High findings from the 2026-09-03 audit. The theme is that a number now says what it is, and refuses to say what it is not. A recorded run repeats itself to the last digit…
v0.10.0KB Arena 0.10.0: retrieval architecture decision lab · 6 Aug 2026KB Arena 0.10.0 KB Arena is now organized as a retrieval architecture decision lab. It compares lexical, dense, graph, hybrid, hierarchical, reranked, and experimental methods against the same documents and questions while keeping the…
v0.9.3v0.9.3 — cost/efficiency diagnostics · 21 Jun 2026Cost/efficiency honesty — two reporting additions, both computed from real run output (no assumed pricing or recall). `retriever-lab --ceiling-k N` — retrieval ceiling Reports the base retriever's `Recall@top_k` vs `Recall@ceiling_k`; the…
v0.9.2v0.9.2 — QISS subspace projection · 21 Jun 2026Corrects the QISS multi-hop operator. Why the old one couldn't work The coherent superposition scored by cosine to the sub-query **mean**, and that mean is ≈ the holistic question embedding (cosine 0.77 on aws-compute). So it collapsed to…
v0.9.1v0.9.1 — QISS superposition fix + robustness · 21 Jun 2026Quantum follow-ups + robustness, from validating the v0.9.0 strategies. Fixes the QISS superposition path (was dead-on-arrival in v0.9.0) The LLM decomposition call passed an empty system prompt, which the Anthropic API rejects…
Questions

About Kb Arena

How do I install Kb Arena?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Kb Arena safe to use with an AI agent?

Its trust score is 39 out of 100 (low). Conduid hasn't run static security checks on this repository yet, so review the source yourself before granting it credentials. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Kb Arena still maintained?

Yes — the latest release is v0.11.0 (6 Sep 2026), and the last commit was a month ago. The repository has 12 stars.