What is the best alternative to Arca?

The top-rated alternatives to Arca in the Knowledge & Memory category include Moxie Docs MCP, Mcp Server, Collective Memory. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

How do Arca alternatives differ in installation and runtime?

Arca and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Are alternatives to Arca free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

How do I side-by-side compare Arca with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

What is the best alternative to Arca?

The top-rated alternatives to Arca in the Knowledge & Memory category include Moxie Docs MCP, Mcp Server, Collective Memory. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

How do Arca alternatives differ in installation and runtime?

Arca and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Are alternatives to Arca free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

How do I side-by-side compare Arca with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

Knowledge & Memory• MCP Alternatives Guide

Best Alternatives to Arca

Looking for an alternative to Arca? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Knowledge & Memory ecosystem, we have cataloged and compared the top alternative MCP servers below.

Browse all Knowledge & Memory servers →View Arca Specs →

Target Reference Server

Arca Overview

Arca is a private data vault where your AI stores your structured data, semantic memory and skills.

Specification Matrix: Arca vs Alternatives

Server Name	Runtime	Auth	Pricing	GitHub Stars	Downloads	Action
A Arca (Target)	Remote (SSE)	Free/None	Free	—	—	Current
Moxie Docs MCP	npx	API key	Freemium	2	25	Compare →
Mcp Server	Remote (SSE)	Free/None	Free	115	—	Compare →
C Collective Memory	npx	Free/None	Free	—	—	Compare →
Memora	npx	API key	Bring your own API key (usage-based cost)	633	—	Compare →
Mcp Obsidian	npx	No auth required	Free	1,603	—	Compare →
E Epiphany	Remote (SSE)	Free/None	Free	1	—	Compare →
Codebase Memory Mcp	npx	No auth required	Free	38,451	1	Compare →
Mcp	Remote (SSE)	Free/None	Free	—	—	Compare →
C Cortex	Remote (SSE)	Free/None	Free	—	—	Compare →
F Freshvault	npx	Free/None	Free	—	—	Compare →
Mcp Persona Sessions	uvx	No auth required	Free	12	—	Compare →
Openzim Mcp	npx	API key	Free	104	—	Compare →

Detailed Evaluation of Arca Alternatives

Moxie Docs MCP

Runtime: npx

★ Featured

MCP server providing automated, context-aware documentation and code convention insights for GitHub repos.

Key Features:

Compact pre-edit repo context including conventions and gaps

Change impact analysis linking code paths to docs and conventions

Structured API endpoint context for touched code paths

17 25 2

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Mcp Server

Runtime: Remote (SSE)

Apple Developer Documentation with Semantic Search, RAG, and AI reranking for MCP clients

0 0 115

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Collective Memory

Runtime: npx

MCP server for persistent, semantic memory across AI sessions

0 0

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Memora

Runtime: npx

Persistent memory MCP server with knowledge graph, semantic search, cloud sync, and cross-session context management.

Key Features:

Persistent storage with SQLite or cloud sync (S3, R2, D1)

Hierarchical memory organization with sections and subsections

Semantic search using TF-IDF, sentence-transformers, and OpenAI embeddings

2 0 633

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Mcp Obsidian

Runtime: npx

MCP server providing safe read/write access and comprehensive operations on Obsidian vault notes via MCP.

Key Features:

Safe YAML frontmatter parsing and AST-aware updates

File operations: read, write, patch, delete, move notes/files

Partial reads: get note outlines and specific line ranges

2 0 1,603

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Epiphany

Runtime: Remote (SSE)

One private, local memory your AI tools share. Cross-model, on-device, never lose a session.

0 0 1

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Codebase Memory Mcp

Runtime: npx

Local code intelligence engine indexing repos into a persistent knowledge graph with fast structural queries across 159 languages.

Key Features:

Indexes 159 languages using tree-sitter and Hybrid LSP

Supports 15 MCP tools including graph search, tracing, and impact analysis

Runs as a single static native binary with zero dependencies

6 1 38,451

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Mcp

Runtime: Remote (SSE)

AI memory layer — one shared, persistent memory across every AI tool you connect.

0 0

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Cortex

Runtime: Remote (SSE)

Shared, persistent semantic memory for your AI: save, search by meaning, recall with sources.

0 0

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Freshvault

Runtime: npx

Local semantic search over your Obsidian vault - always fresh, never reindex.

0 0

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Mcp Persona Sessions

Runtime: uvx

Run structured, persona-driven AI sessions for interview prep, coaching, reflection, and adaptive conversation flow.

Key Features:

Persona-driven session management with detailed profiles

Built-in timer controls: start, stop, and status checks

Predefined and customizable session frameworks

3 0 12

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Openzim Mcp

Runtime: npx

MCP server providing structured, offline access to ZIM knowledge archives like Wikipedia with advanced search and navigation.

Key Features:

Supports ZIM archives from Kiwix Library

Advanced 8-tool schema plus Simple natural-language query mode

Archive-type presets for optimized retrieval per source

3 0 104

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Best Alternatives to Arca

Arca Overview

Specification Matrix: Arca vs Alternatives

Detailed Evaluation of Arca Alternatives

Frequently Asked Questions: Arca Alternatives