Best MCP servers for object storage
S3-style object storage is where applications keep their bytes: user uploads, generated artifacts, model checkpoints, log archives, static assets. When an agent is building or operating an app, it often needs to reach into those buckets directly, list objects, read or write a blob, check versioning, generate a presigned URL, or inspect lifecycle and replication. Exposing object storage over MCP turns that into a tool call instead of a cobbled-together SDK script, and lets the agent reason about what is actually stored. The right server depends on which object store you run: a self-hostable S3-compatible engine, the broad AWS surface via the CLI, or an edge object store. The servers below cover those shapes, each a real MCP server with a verified, current install config.
MinIO
MinIO
MinIO's official MCP server lets agents browse buckets, read and write objects, manage tags and versioning, and ask AI questions about stored objects.
MinIO's official server lets an agent browse buckets, read and write objects, manage tags and versioning, generate presigned URLs, and even ask AI questions about stored objects, the most object-storage-native option here.
AWS (AWS Labs)
AWS Labs
Run any AWS CLI command from an agent, with validation, read-only mode, and command suggestions.
The AWS server runs any AWS CLI command with validation and a read-only mode, so an agent can drive S3 (and the rest of AWS) using the same commands you already know.
Cloudflare
Cloudflare
Cloudflare's remote MCP servers: build and manage Workers, KV, R2, D1, and Hyperdrive from an agent.
Cloudflare's remote servers manage R2 buckets alongside Workers, KV, and D1, the right pick when your object storage lives on Cloudflare's edge.