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AgentIndex
project-synapse-mcp logo
project-synapse-mcp
★ 11
vs
crg logo
crg
★ 76

project-synapse-mcp vs crg

project-synapse-mcp: Project Synapse MCP server creates a persistent, compounding knowledge base by integrating a Neo4j graph database with an Obsidian Markdown wiki. It processes raw text into interconnected graph nodes with vector embeddings, while maintaining a human-readable wiki layer.; crg: `crg` (formerly `better-code-review-graph`) is a local-first knowledge graph tool for codebases, enabling token-efficient code reviews through semantic search, call-graph resolution, and structural analysis. It integrates with AI agents via MCP for precise context provision, leveraging local ONNX embeddings or cloud models for enhanced code understanding and security scanning.

01

TL;DR

project-synapse-mcp logo
project-synapse-mcpRAG / Knowledge Base · ★ 11

Deep research dives that accumulate knowledge over extended periods.

Read project-synapse-mcp full review →
crg logo
crgRAG / Knowledge Base · ★ 76

Performing token-efficient code reviews with precise context for AI agents

Read crg full review →
02

Side-by-Side Comparison

Field
project-synapse-mcp logoproject-synapse-mcp
crg logocrg
Category
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 11
★ 76
License
MIT
Apache-2.0
Install Command
git clone https://github.com/project-synapse/project-synapse-mcp.git project-synapse-mcp && cd project-synapse-mcp && uv venv --python 3.12 --seed && source .venv/bin/activate && uv add -e . && uv run python -m spacy download en_core_web_sm && cp .env.example .env
pip install better-code-review-graph
Updated
2mo ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Knowledge Graph, LLM Integration, Semantic Search
Knowledge Graph, Code Review, Semantic Search
03

Features

project-synapse-mcp logoproject-synapse-mcp
01Knowledge Graph (Neo4j 2026.x) with native vector support, hybrid search, Montague Grammar, and a Zettelkasten engine for autonomous insight generation.
02LLM-WIKI Integration bridging Obsidian Markdown vaults with the Neo4j graph, offering full page CRUD, automatic index generation, and health checks.
03Web Content Ingestion via 'defuddle' for cleaning and ingesting web pages, and automated processing of local files into the knowledge base.
04Local-Only Embeddings using sentence-transformers or Ollama, ensuring all vector processing and storage happens without relying on paid APIs.
crg logocrg
01AND-logic multi-word search for code entities
02Qualified call graph resolution and bare fallback
03Dual-mode fastretrieval ONNX and cloud embeddings (Jina/Gemini/OpenAI/Cohere)
04Paginated and truncated output for large search results
05Integrated security scanning with Semgrep and heuristic rules
04

Use Cases

project-synapse-mcp logoproject-synapse-mcp
↳Deep research dives that accumulate knowledge over extended periods.
↳Creating project knowledge bases to document architectural decisions and design rationale.
↳Personal knowledge management for articles, books, and podcast notes.
↳Collaborative brainstorming where an AI acts as the wiki maintainer.
crg logocrg
↳Performing token-efficient code reviews with precise context for AI agents
↳Conducting semantic search and call-graph resolution across a codebase
↳Analyzing the blast radius and impact of changed files within a repository
↳Running local security scans on code using heuristic rules or Semgrep engine
↳Onboarding new repositories and quickly understanding code structure and relationships
FAQ

FAQ

What is the difference between project-synapse-mcp and crg?
Both project-synapse-mcp and crg are in the RAG / Knowledge Base category. project-synapse-mcp has 11 stars, while crg has 76 stars.
Which is better, project-synapse-mcp or crg?
The best choice depends on your use case. Choose project-synapse-mcp if Deep research dives that accumulate knowledge over extended periods., and crg if Performing token-efficient code reviews with precise context for AI agents.
Is project-synapse-mcp free or open source?
Yes, project-synapse-mcp is open source on GitHub (MIT).
Is crg free or open source?
Yes, crg is open source on GitHub (Apache-2.0).
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