AWS S3 MCP

Read, write, list, and presign objects in any S3 bucket from Claude.

Try AWS S3 MCP

Best for

Best for teams whose object store is S3 and who want Claude orchestrating files.

At a glance

Pricing: open-source
Setup time: 15 minutes
Learning curve: easy
Last verified: 5/25/2026

What we love

✓Official AWS Labs maintained
✓Works with any S3-compatible store
✓Supports IAM-role auth

Where it falls short

−Requires AWS credentials setup
−Large objects need streaming care
−Costs ride on AWS bill

Pricing

✓ Pricing verified Jun 14, 2026

1 tier

Open-source

perpetual

✓MIT-licensed

Overview

MCP server exposing AWS S3 operations to Claude — list buckets, GET/PUT objects, generate presigned URLs, copy/delete. Auth via IAM roles or access keys.

Key features

●list_buckets / list_objects
●get_object / put_object
●presign_url
●delete_object
●IAM auth

Best use cases

AI-driven asset management

Let Claude organize, tag, and move S3 assets in response to natural-language requests.

Document RAG

Pull source documents from S3 into Claude for retrieval-augmented answers.

Integrations

AWS S3

Cloudflare R2 (S3-compat)

MinIO

Backblaze B2

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