How to install s3 in Cursor
To install s3 in Cursor, click "Add to Cursor" on this page or paste the "s3" block into ~/.cursor/mcp.json, then check for a green dot in Cursor Settings under MCP.
Built from the published package · server updated 13 days ago
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Or add it by hand
Open Cursor Settings, then MCP, then Add new MCP server, or edit mcp.json directly and paste:
{ "mcpServers": { "s3": { "command": "npx", "args": [ "-y", "s3-aws-mcp-server" ], "env": { "AWS_ACCESS_KEY_ID": "YOUR_AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY": "YOUR_AWS_SECRET_ACCESS_KEY" } } } } - 3
Turn it on
In Settings, MCP, make sure the server shows a green dot. Use it in Agent mode.
Config file: ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project)
MCP servers run with your permissions. If s3 needs an API key, add it under env in the config. Check its README.
Install s3 in another app
Similar servers
Questions
Does s3 work in Cursor?
Yes. Cursor supports local and remote mcp servers, and s3 installs with the steps above.
s3 does not show up in Cursor. What now?
Restart Cursor fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.
Is s3 safe?
It scores 83 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
