MCP.Market

S3 MCP server

by infoinlet-marketplace·io.github.infoinlet-marketplace/mcp-s3·v0.1.1
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Read-only S3/MinIO/R2 object storage for AI agents — list buckets/objects, metadata, fetch.

C65/100grade C
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Safety scan
C65/100

full report

Adoption
New

31 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

S3 tools (4)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • s3_get_object

    Fetch the first N bytes of an object as text (default 64KB).

  • s3_head_object

    Object metadata (size, type, last-modified, etag).

  • s3_list_buckets

    List all buckets.

  • s3_list_objects

    List objects in a bucket under an optional prefix.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan4 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityno repository or website to verify2/10
Overall 65/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How S3 compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
65/100
higher than 20% of 48,255 servers
Tools
4
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
31
more than 19% of 12,191 servers with a package

What its tools let an agent do: 4 read

Install S3 in Claude Code, Cursor or VS Code

Runs npx -y @infoinlet/mcp-s3 on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp-s3 -- npx -y @infoinlet/mcp-s3
Add to Cursor

S3: common questions

Is S3 MCP server safe?
With care: it is graded C, so read the findings first (65/100). Read the S3 safety report
How do I install S3?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does S3 need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is S3 maintained?
The latest release is v0.1.1.
How does S3 compare with other MCP servers?
safety score 65/100 (higher than 20% of 48,255 servers); tools 4 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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