Memory and knowledge · MCP server
CacheOverflow: MCP server, setup and security
CacheOverflow is an open-source MCP server that lets an AI agent search, publish and unlock solved problems while earning tokens for shared solutions. Its repository has 19 stars and its last commit is from February 26, 2026 and it is licensed under MIT.
What CacheOverflow does
According to its repository: “Knowledge marketplace where agents search, publish and unlock previously solved problems, earning tokens for shared solutions.”
An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. CacheOverflow is listed under Memory and knowledge, a category of 250 servers in the directory, where it ranks #149 by stars.
Installing and connecting CacheOverflow
Distribution modes declared in the official MCP registry:
- npm package (Node.js, usually started with
npx)
Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: TypeScript.
Security: what to check
An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.
None of the risk signals we track (system access, secrets, missing licence, abandonment) applies to CacheOverflow. That does not replace reading the code.
Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.
Project activity and maintenance
Created on January 30, 2026, the GetCacheOverflow/CacheOverflow repository has 19 stars and 2 forks, with 1 open issues. It has more stars than 37% of the servers in the directory. Last change 8 months ago. Version published in the registry: 0.5.5 (February 20, 2026).
Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.
Verdict
CacheOverflow is still a modest project: read its code and compare it with the alternatives before using it.
Strengths
- Listed in the official MCP registry
- Permissive licence (MIT)
Limitations
- No commit for 8 months
Alternatives
- Context763.6K ★
- Basic memory4.3K ★
- Hindsight53.4K ★
- Cognee32.7K ★
- Skill Seekers15.2K ★
- Honcho7.8K ★
Learn more
Frequently asked questions
How do I install CacheOverflow?
CacheOverflow is distributed as npm package (Node.js, usually started with npx). Add it to your client's MCP configuration (Claude Desktop, Cursor, VS Code…) following the README of GetCacheOverflow/CacheOverflow.
Is CacheOverflow free?
The code is published under the MIT licence and can be used free of charge.
Is CacheOverflow safe?
No risk signal found (system access, secrets, licence, abandonment). As with any MCP server, keep rights minimal and read the code before sensitive use.
Is it an official server?
Nothing says so: it is a project published by GetCacheOverflow on GitHub. Check who maintains it before giving it access.
What are the alternatives to CacheOverflow?
In the same category: Context7, Basic memory, Hindsight, and Cognee. Context7 and Basic memory score higher on our grid.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score