AWS S3
Provides direct access to Amazon S3 storage for listing buckets, browsing objects, and retrieving fi...
Log in to your AWS Management Console
- Go to https://console.aws.amazon.com/ and sign in with your AWS account.
Navigate to IAM (Identity and Access Management)
- In the AWS Console search bar, type “IAM” and select the IAM service.
Create a new IAM User for S3 Access
- Click “Users” in the left sidebar, then click “Add users.”
- Enter a user name (e.g., “mcp-s3-user”).
- Select “Access key - Programmatic access” as the access type, then click “Next: Permissions.”
Assign S3 Access Permissions
- Attach a policy that allows access to your S3 buckets:
- Click “Attach policies directly.”
- To allow full access, search for and select the
AmazonS3FullAccesspolicy. - For more restricted access, click “Create policy” and define custom permissions (e.g., List/Get only for specific buckets).
- Attach a policy that allows access to your S3 buckets:
Finish User Creation and Download Credentials
- Complete the steps. On the final screen, click “Download .csv” to save the
AWS_ACCESS_KEY_IDandAWS_SECRET_ACCESS_KEY.
- Complete the steps. On the final screen, click “Download .csv” to save the
Fill in the FastMCP Connection Interface
- Click the Install Now button for the S3 MCP server integration.
- In the FastMCP connection settings, fill in:
- AWS_REGION: The region where your S3 buckets are located (e.g.,
us-east-1). - S3_BUCKETS: Comma-separated list of bucket names (e.g.,
bucket1,bucket2). - S3_MAX_BUCKETS: (Optional) Maximum number of buckets to list (default is 5).
- AWS_ACCESS_KEY_ID: The Access Key ID from the IAM user you created.
- AWS_SECRET_ACCESS_KEY: The Secret Access Key from the IAM user.
- AWS_REGION: The region where your S3 buckets are located (e.g.,
Save the Configuration
- Submit or save the connection details. The S3 MCP server will now use the specified AWS credentials to access only the listed buckets.
Note: Use IAM credentials with minimum necessary permissions for best security practices. If you’re testing locally with MinIO, MinIO default credentials are minioadmin (username and password), and you can set them in these fields as well.
Quick Start
Choose Connection Type for
Authentication Required
Please sign in to use FastMCP hosted connections
Configure Environment Variables for
Please provide values for the following environment variables:
started!
The MCP server should open in . If it doesn't open automatically, please check that you have the application installed.
Copy and run this command in your terminal:
Make sure Gemini CLI is installed:
Visit Gemini CLI documentation for installation instructions.
Make sure Claude Code is installed:
Visit Claude Code documentation for installation instructions.
Installation Steps:
Configuration
Installation Failed
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