io.github.ofershap/s3
NPM · MCP-SERVER-S3 · SCANNED AUG 3
AWS S3 MCP — list buckets, browse objects, upload/download, presigned URLs.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security88
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (122 of 126), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (122 of 126), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 145 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 301 tokens (~43/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · mcp-server-s3
claude mcp add ofershap-s3 -- npx -y mcp-server-s3
codex mcp add ofershap-s3 -- npx -y mcp-server-s3
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ofershap-s3": {
"type": "local",
"command": [
"npx",
"-y",
"mcp-server-s3"
],
"enabled": true
}
}
} openclaw mcp add ofershap-s3 --command npx --arg -y --arg mcp-server-s3
mcp_servers:
ofershap-s3:
command: "npx"
args: ["-y", "mcp-server-s3"] {
"mcpServers": {
"ofershap-s3": {
"command": "npx",
"args": [
"-y",
"mcp-server-s3"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Aug 26 +58
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Dependency health: partial → unverified ▼ functional
- License: unverified → pass ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Schema quality: unverified → good ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Licence: MIT functional
- 1 Aug 26 −21
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 27 Jul 26 46
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 122 packages
122 packages in the resolved dependency tree · 115 deprecated · 29 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
bucket_info ~27
Check if a bucket exists and get basic info.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
No output schema declared.
No examples provided.
delete_object ~35
Delete an object from an S3 bucket.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
| key | string | yes | Object key |
No output schema declared.
No examples provided.
get_object ~39
Download and read the contents of an S3 object as text.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
| key | string | yes | Object key |
No output schema declared.
No examples provided.
list_buckets ~19
List all S3 buckets in your AWS account.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_objects ~61
List objects in an S3 bucket. Optionally filter by prefix and limit count.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
| maxKeys | integer | — | Max objects to return |
| prefix | string | — | Key prefix (e.g. 'uploads/') |
No output schema declared.
No examples provided.
presigned_url ~59
Generate a presigned URL for temporary access to an S3 object.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
| expiresIn | integer | — | URL expiry in seconds (default: 1 hour) |
| key | string | yes | Object key |
No output schema declared.
No examples provided.
put_object ~61
Upload text content to an S3 object.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | Bucket name |
| content | string | yes | Content to upload |
| contentType | string | — | Content-Type header (default: text/plain) |
| key | string | yes | Object key |
No output schema declared.
No examples provided.