Citadel alternatives
24 databases MCP servers from other publishers do the same job as Citadel. The closest match comes first, then the best rated, with at most two per publisher.
Memory, reflection and safety for AI agents. Hosted or local, no vector database.
5.0(1)gateway-ready81FreePersistent memory for AI coding agents. Local-first SQLite + vector search. 17 MCP tools.
No reviews yetlocal · npm2343/wkFreeBuild and deploy backends: auth, Postgres/MySQL/vector databases, storage, functions, hosting, CDN
No reviews yetgateway-ready7239k/wkFreeLocal-first automatic memory for Claude Code and Codex: capture, distill, recall from SQLite.
No reviews yetlocal · npm33821/wkFreeBuilt-in MCP server for ArcadeDB multi-model database (graph, document, vector, time-series)
No reviews yetlocal · oci1.2kFreePortable agent memory anchored on Solana. Local SQLite + vector recall, open export.
No reviews yetlocal · npm2259/wkFreeLocal-first memory for AI coding agents — Markdown + SQLite FTS5, shared across editors via MCP.
No reviews yetlocal · npm41.3k/wkFreeLocal-first memory for AI coding agents. Memory + CodeGraph + Wiki in one SQLite file.
No reviews yetlocal · npm995/wkFreeEmbedded graph database for agents: declare association rules once, edges maintain themselves.
No reviews yetlocal · mixed5988/wkFreeRecall over your markdown notes: vector search plus your [[wikilinks]] as a graph, in SQLite.
No reviews yetlocal · pypi12124/wkFreeRead-first Redis MCP: SCAN key explorer, keyspace/TTL/memory/slowlog stats, DBA advisor
No reviews yetlocal · npm2402/wkFreeLocal-first persistent session memory for Claude Code and other agents. SQLite + FTS5, no cloud.
No reviews yetlocal · pypi10140/wkFreePersistent local AI memory. SQLite + FTS5 + vector search, knowledge graph. No cloud, no API keys.
No reviews yetlocal · npm1467/wkFreeLocal-first AI memory layer with hybrid search. Postgres + pgvector. Self-hosted, MIT.
No reviews yetlocal · oci65FreeToken-efficient database MCP server for PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite
No reviews yetlocal · npm3.6k40k/wkFreeA simple Neo4j MCP server that allows you to run Cypher queries against a Neo4j database.
No reviews yetlocal · pypi9866.9k/wkFreeRead and write access to Airtable database schemas, tables, and records.
No reviews yetlocal · mixed4571.7k/wkFreeMCP Toolbox for Databases enables your agent to connect to your database.
No reviews yetlocal · oci17kFreeMCP Toolbox for Databases enables your agent to connect to your database.
No reviews yetlocal · oci16kFreeSling CLI MCP server for querying any database, running data pipelines and managing replications
No reviews yetlocal · pypi7244k/wkFreeMCP server for Neo4j Aura Database Instance Manager.
No reviews yetlocal · pypi98639/wkFreeSQL database to MCP tools and REST API: PostgreSQL, MySQL, SQL Server, Oracle, SQLite, Snowflake.
No reviews yetlocal · mixed118396/wkFreeOfficial Neon MCP server for managing Neon projects and Lakebase Postgres databases.
No reviews yetgateway-ready649FreeInspect database schemas and execute SQL queries across multiple database providers with LINQ to DB.
No reviews yetlocal · nuget3.3kFree
Citadel alternatives by what you need
Open source Citadel alternatives (21)
Published under an open licence such as MIT or Apache-2.0.
CogniCore, Appwrite, Remem, ArcadeDB MCP Server, Clude, open-memex, remem-mcp — Local-first MCP Memory + CodeGraph + Wiki, sqlite-graph-memory and 13 more below.
Hosted Citadel alternatives (3)
Nothing to install: a remote endpoint you add by URL. Also callable through the mcp.market gateway.
Local Citadel alternatives (21)
A package you install and run on your own machine, so your data stays on your computer.
SAME - Stateless Agent Memory Engine, Remem, ArcadeDB MCP Server, Clude, open-memex, remem-mcp — Local-first MCP Memory + CodeGraph + Wiki, Mushroomdb, sqlite-graph-memory and 13 more below.
Safest Citadel alternatives (12)
Graded A: passed every check the scanner runs on the latest release.
CogniCore, Appwrite, sqlite-graph-memory, Local Memory, DBHub, Neo4j Cypher, MCP Toolbox for Databases, MCP Toolbox for Databases and 4 more below.
Citadel and its alternatives compared
| Server | Grade | Rating | Licence | Runs | Stars |
|---|---|---|---|---|---|
| Citadel(this one) | B82 | No reviews yet | Apache-2.0 | Local | 3 |
| CogniCore | A95 | 5.0 (1) | MIT | Hosted | 81 |
| SAME - Stateless Agent Memory Engine | B74 | No reviews yet | NOASSERTION | Local | 23 |
| Appwrite | A99 | No reviews yet | MIT | Hosted | 72 |
| Remem | B77 | No reviews yet | MIT | Local | 33 |
| ArcadeDB MCP Server | B83 | No reviews yet | Apache-2.0 | Local | 1.2k |
| Clude | B83 | No reviews yet | MIT | Local | 22 |
| open-memex | B77 | No reviews yet | Apache-2.0 | Local | 4 |
| remem-mcp — Local-first MCP Memory + CodeGraph + Wiki | B77 | No reviews yet | MIT | Local | 9 |
| Mushroomdb | B77 | No reviews yet | NOASSERTION | Local | 5 |
| sqlite-graph-memory | A92 | No reviews yet | MIT | Local | 12 |
| Redis MCP Server | B83 | No reviews yet | MIT | Local | 2 |
| LoreConvo | B80 | No reviews yet | NOASSERTION | Local | 10 |
| Local Memory | A91 | No reviews yet | MIT | Local | 14 |
| Memory Vault | B70 | No reviews yet | MIT | Local | 65 |
| DBHub | A85 | No reviews yet | MIT | Local | 3.6k |
| Neo4j Cypher | A85 | No reviews yet | MIT | Local | 986 |
| Airtable | B83 | No reviews yet | MIT | Local | 457 |
| MCP Toolbox for Databases | A90 | No reviews yet | Apache-2.0 | Local | 17k |
| MCP Toolbox for Databases | A90 | No reviews yet | Apache-2.0 | Local | 16k |
| Sling CLI | B82 | No reviews yet | MIT | Local | 72 |
| Neo4j Aura Manager | A85 | No reviews yet | MIT | Local | 986 |
| Faucet | A91 | No reviews yet | MIT | Local | 118 |
| Neon | A93 | No reviews yet | MIT | Hosted | 649 |
| LINQ to DB | A90 | No reviews yet | MIT | Local | 3.3k |