MCP server for AWS S3 with fine-grained tool control and S3-compatible endpoint support.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add s3 --env AWS_ACCESS_KEY_ID='<AWS_ACCESS_KEY_ID>' --env AWS_SECRET_ACCESS_KEY='<AWS_SECRET_ACCESS_KEY>' -- npx -y s3-aws-mcp-server~/.codex/config.toml
[mcp_servers.s3]
command = "npx"
args = ["-y", "s3-aws-mcp-server"]
env = { AWS_ACCESS_KEY_ID = "<AWS_ACCESS_KEY_ID>", AWS_SECRET_ACCESS_KEY = "<AWS_SECRET_ACCESS_KEY>" }
# codex mcp add s3 --env AWS_ACCESS_KEY_ID='<AWS_ACCESS_KEY_ID>' --env AWS_SECRET_ACCESS_KEY='<AWS_SECRET_ACCESS_KEY>' -- npx -y s3-aws-mcp-server~/.cursor/mcp.json
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
"AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"s3": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
"AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
"AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
"AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"s3": {
"command": "npx",
"args": [
"-y",
"s3-aws-mcp-server"
],
"env": {
"AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
"AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>"
}
}
}
}Environment variables
AWS_ACCESS_KEY_IDAWS_SECRET_ACCESS_KEY
Replace the placeholders with your own credentials and keep them out of version control.