S3 (pulsemcp)

s3 is an MCP server in the cloud infrastructure category that exposes 9 tools to an agent, covering object, bucket, read & search.

People who work with bucket and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

One of 28 MCP servers published from pulsemcp/mcp-servers. Stars and repository activity are shared across all of them. See all 28 →

VERIFIED ACTIVE

LAST COMMIT 2026-08-30 · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install S3 (pulsemcp)

before you install - you'll need

Set AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION, S3_ENABLED_TOOLGROUPS, AWS_ENDPOINT_URL, S3_FORCE_PATH_STYLE, S3_BUCKET before connecting.

Claude Code

claude mcp add pulsemcp-mcp-servers-experimental-s3 -- npx -y s3-aws-mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "pulsemcp-mcp-servers-experimental-s3": {
      "command": "npx",
      "args": [
        "-y",
        "s3-aws-mcp-server"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package s3-aws-mcp-server - unscoped; check the name against the project README before installing

registry vendor namespace com.pulsemcp - domain-verified with the official MCP registry

03 · What S3 (pulsemcp) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can list all S3 buckets in the AWS account, list objects in a bucket with prefix and pagination, get object contents as text, and check if a bucket exists and is accessible.

Capability map

Tools grouped from the project's README - what S3 (pulsemcp) lets an agent do.

Object

4 tools - e.g. Get object contents as text; Upload or update an object; Delete an object from a bucket

get_object · put_object · delete_object · copy_object

Bucket

3 tools - e.g. Check if a bucket exists and is accessible; Create a new S3 bucket; Delete an empty S3 bucket

head_bucket · create_bucket · delete_bucket

read & search

2 tools - e.g. List all S3 buckets in the AWS account; List objects in a bucket with prefix and pagination

list_buckets · list_objects

Latest releases

gmail-workspace-mcp-server@0.4.12 · 2026-07-10

Fixed · Gmail deep-links emitted by list_email_conversations, search_email_conversations, get_email_conversation, and send_email now use the form instead of Two independent defects made the old links fail to open the…

tailscale-vpn-mcp-server@0.0.3 · 2026-07-09

Added · create_oauth_client tool (keys group, write): mints a non-interactive Tailscale OAuth client (client_id + client_secret) with configurable scopes and ACL tags. Unlike create_auth_key - which only enrolls…

monarch-money-mcp-server@0.0.13 · 2026-07-06

Added · set_account_balance_history (manage group): edit a manual account's recorded daily balance snapshots. Previously the server could read balance history (get_account_balance_history) but had no write counterpart…

04 · Who maintains S3 (pulsemcp)

s3 is maintained by pulsemcp. We track 29 MCP servers from pulsemcp - 28 actively maintained, 80 combined GitHub stars, oldest repo from May 2025. Full record: all servers from pulsemcp.

05 · Facts

repository: github.com/pulsemcp/mcp-servers
category: cloud infrastructure - actively maintained as of 2026-09-18.
registry: com.pulsemcp/s3 (active, first published 2026-05-18 · 2 versions)
packages: npm:s3-aws-mcp-server

06 · S3 (pulsemcp) FAQ

Is S3 (pulsemcp) still maintained?

Yes - as of 2026-09-18, its last commit was 2026-08-30. We re-verify nightly.

What can S3 (pulsemcp) do?

How do I install S3 (pulsemcp)?

Run `npx -y s3-aws-mcp-server`. The README documents 7 environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION…) to set first. Set AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION, S3_ENABLED_TOOLGROUPS, AWS_ENDPOINT_URL, S3_FORCE_PATH_STYLE, S3_BUCKET before connecting. You can also paste the ready-made client config above.

Does S3 (pulsemcp) run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to S3 (pulsemcp)

Alternatives to S3 (pulsemcp)

Maintained cloud infrastructure servers if S3 (pulsemcp) isn't the fit.

Pairs well with

Servers that cover what S3 (pulsemcp) doesn't - only shown when the pairing reason fits the companion.

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