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MCP server for AWS S3 with fine-grained tool control and S3-compatible endpoint support.
About
MCP server for AWS S3 with fine-grained tool control and S3-compatible endpoint support.
Security Report
9.5
Low Risk9.5Low RiskValid MCP server (1 strong, 1 medium validity signals). 1 known CVE in dependencies ⚠️ Package registry links to a different repository than scanned source. Imported from the Official MCP Registry. Trust signals: trusted author (22/22 approved). 1 finding(s) downgraded by scanner intelligence.
13 files analyzed · 2 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
What You'll Need
Set these up before or after installing:
AWS access key ID for authentication.Required
Environment variable: AWS_ACCESS_KEY_ID
AWS secret access key for authentication.Required
Environment variable: AWS_SECRET_ACCESS_KEY
AWS region for S3 operations.
Environment variable: AWS_REGION
Custom S3 endpoint URL for MinIO or S3-compatible services.
Environment variable: AWS_ENDPOINT_URL
Use path-style addressing instead of virtual-hosted-style.
Environment variable: S3_FORCE_PATH_STYLE
Constrain all operations to a single bucket.
Environment variable: S3_BUCKET
Comma-separated tool groups: readonly or readwrite.
Environment variable: S3_ENABLED_TOOLGROUPS
Whitelist specific tools by name.
Environment variable: S3_ENABLED_TOOLS
Blacklist specific tools by name.
Environment variable: S3_DISABLED_TOOLS
Skip AWS credential validation health checks at startup.
Environment variable: SKIP_HEALTH_CHECKS
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"com-pulsemcp-s3": {
"env": {
"S3_BUCKET": "your-s3-bucket-here",
"AWS_REGION": "your-aws-region-here",
"AWS_ENDPOINT_URL": "your-aws-endpoint-url-here",
"S3_ENABLED_TOOLS": "your-s3-enabled-tools-here",
"AWS_ACCESS_KEY_ID": "your-aws-access-key-id-here",
"S3_DISABLED_TOOLS": "your-s3-disabled-tools-here",
"SKIP_HEALTH_CHECKS": "your-skip-health-checks-here",
"S3_FORCE_PATH_STYLE": "your-s3-force-path-style-here",
"AWS_SECRET_ACCESS_KEY": "your-aws-secret-access-key-here",
"S3_ENABLED_TOOLGROUPS": "your-s3-enabled-toolgroups-here"
},
"args": [
"-y",
"s3-aws-mcp-server",
"-y"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
PulseMCP's MCP Servers
We build reliable servers thoughtfully designed for MCP Client-powered workflows.
Design principles
You can have confidence that any Pulse-branded MCP server was built with these north stars in mind:
- Purpose-built. LLM-powered MCP clients offer uniquely new user interaction patterns that necessitate a different layer of abstraction than the REST API's from a pre-AI era. We thoughtfully scope drawing lines like building a new server, versus incorporating a new feature in another server. Or deciding where one slew of REST API endpoints might be better packaged as a single Tool call. And more.
- Easy set up. Many MCP servers die before ever getting a chance to be used. We offer guides and a frustration-free experience to get going with our MCP servers inside your favorite MCP clients.
- Time savings. By minimizing the number of tool chain steps or conversational turns you need to accomplish a task, our MCP servers will save you (and your agents) time waiting for a task to be completed.
- Inference cost savings. By minimizing the number of tokens you need to consume to a accomplish a task, our MCP servers will save you on your LLM inference bills.
- Reliability. You should have confidence that you can deploy our servers in a production application serving mass market consumers or business clients.
- Future-proof. We sit on the bleeding edge of the MCP specification, working to push the ecosystem forward. As such, you can be sure that if you commit to baking our server into your workflow, it will self-improve over time to take advantage of the latest and greatest MCP features.
Servers Available
Productionized Servers
These are PulseMCP-branded servers that we intend to maintain indefinitely as our own offerings.
The MCP Registry column controls whether the server is published to the official MCP Registry (com.pulsemcp/<server-name>) by the publish-mcp-registry.yml workflow.
| Name | Description | Local Status | Remote Status | MCP Registry | Target Audience | Notes |
|---|---|---|---|---|---|---|
| pulse-fetch | Pull internet resources into context | 0.3.2 | Not Started | Yes | Agent-building frameworks (e.g. fast-agent, Mastra, PydanticAI) and MCP clients without built-in fetch | Supports Firecrawl and BrightData integrations; HTML noise stripping; Resource caching; LLM extraction |
| pulse-subregistry | Browse the PulseMCP Sub-Registry | 0.0.7 | Not Started | Yes | Developers discovering MCP servers from the PulseMCP Sub-Registry | Search and pagination; Version selection; Integrates with PulseMCP Sub-Registry API |
| image-diff | Programmatic image comparison | 0.1.2 | Not Started | Yes | Developers comparing design mocks against UI implementations | Pixel-level diff with clustering; Heatmap visualization; Anti-aliasing detection; Auto-alignment for different-sized images |
| svg-tracer | Bitmap-to-SVG vector tracing | 0.1.2 | Not Started | Yes | Developers converting bitmap images to SVG vector graphics | Supports PNG, JPG, WebP, BMP, GIF, TIFF; Alpha channel preprocessing; Target size scaling; Customizable tracing parameters |
Experimental Servers
These are high-quality servers that we may discontinue if the official provider creates and maintains a better MCP server.
| Name | Description | Local Status | Remote Status | MCP Registry | Target Audience | Notes |
|---|---|---|---|---|---|---|
| agent-orchestrator | Agent parallelization system for agentic coding and ops | 0.8.3 | Not Started | No | PulseMCP team for agent orchestration | Requires AGENT_ORCHESTRATOR_BASE_URL and API_KEY; Internal use only |
| appsignal | AppSignal application performance monitoring and error tracking | 0.5.3 | Not Started | Yes | Developers using AppSignal for application monitoring | Requires AppSignal API key; NOT officially affiliated with AppSignal |
| claude-code-agent | Claude Code Agent MCP Server for managing Claude Code CLI sessions | 0.0.7 | Not Started | No | Developers building AI-powered automation workflows | Requires Claude Code CLI installed locally |
| dynamodb | AWS DynamoDB table and item operations with fine-grained access | 0.2.6 | Not Started | Yes | Developers using AWS DynamoDB | Requires AWS credentials; Fine-grained tool access control |
| remote-filesystem | Remote filesystem operations on cloud storage (GCS) | 0.1.2 | Not Started | Yes | Developers needing cloud storage integration | Requires GCS credentials; Full CRUD operations; Published as remote-filesystem-mcp-server |
| s3 | AWS S3 bucket and object management | 0.0.4 | Not Started | Yes | Developers needing S3 storage integration | Requires AWS credentials; Fine-grained tool access control; Published as s3-aws-mcp-server |
| fetchpet | Fetch Pet insurance claims management | 0.1.7 | Not Started | Yes | Pet owners with Fetch Pet insurance | Requires Fetch Pet username and password; NOT officially affiliated with Fetch Pet |
| fly-io | Fly.io cloud platform app and machine management | 0.1.6 | Not Started | Yes | Developers deploying applications to Fly.io | Requires FLY_IO_API_TOKEN; NOT officially affiliated with Fly.io |
| gcs | Google Cloud Storage bucket and object management | 0.1.8 | Not Started | Yes | Developers needing GCS storage integration | Requires GCS credentials; Fine-grained tool access control; Published as gcs-google-mcp-server |
| google-flights | Google Flights search, date grids, and airport lookup | 0.2.4 | Not Started | Yes | Users searching for flights via Google Flights | No API key required; Uses protobuf-encoded HTTP requests; Published as google-flights-mcp-server; NOT officially affiliated with Google |
| gmail | Gmail integration for email access | 0.4.10 | Not Started | Yes | Gmail users (personal or Google Workspace) | Supports OAuth2 (personal) and service account (Workspace); NOT officially affiliated with Google |
| google-calendar | Google Calendar Workspace integration for calendar management | 0.0.12 | Not Started | Yes | Google Workspace organizations needing Calendar integration | Requires service account with domain-wide delegation; NOT officially affiliated with Google |
| good-eggs | Good Eggs grocery shopping automation | 0.1.9 | Not Started | Yes | Users of Good Eggs grocery delivery service | Requires Good Eggs username and password; NOT officially affiliated with Good Eggs |
| onepassword | 1Password credential and secrets management via CLI | 0.5.3 | Not Started | Yes | Developers using 1Password for secrets management | Requires 1Password CLI and service account token; NOT officially affiliated with 1Password |
| hatchbox | Hatchbox Rails hosting platform management | 0.1.2 | Not Started | Yes | Rails developers using Hatchbox for hosting | Requires Hatchbox API key and deploy key |
| langfuse | Readonly Langfuse LLM trace and observation analysis | 0.1.2 | Not Started | Yes | Developers using Langfuse for LLM observability | Requires Langfuse API keys; Published as langfuse-observability-mcp-server; NOT officially affiliated with Langfuse |
| monarch-money | Monarch Money personal finance management (read + mutate) | 0.0.7 | Not Started | Yes | Monarch Money users tracking accounts, transactions, net worth, and budgets | Requires Monarch credentials; tool-group filtering for write protection; NOT officially affiliated with Monarch Money |
| playwright-stealth | Browser automation with Playwright and optional stealth mode | 0.2.2 | Not Started | Yes | Developers needing browser automation with anti-bot bypass | Optional stealth mode via STEALTH_MODE env var |
| pointsyeah | Award flight search across 20+ airline loyalty programs | 0.2.8 | Not Started | Yes | Travelers optimizing credit card points for flights | Optional PointsYeah refresh token (can be set at runtime); NOT officially affiliated with PointsYeah |
| proctor | Proctor exam runner for testing MCP servers | 0.1.8 | Not Started | Yes | PulseMCP team for MCP server testing | Requires PROCTOR_API_KEY; Internal use only |
| pulsemcp-cms-admin | Internal API for managing PulseMCP newsletter content | 0.9.28 | Not Started | No | PulseMCP team for content management | Requires PULSEMCP_ADMIN_API_KEY; Internal use only |
| serpapi-hotels | Google Hotels search, details, and reviews via SerpAPI | 0.0.3 | Not Started | Yes | Users searching for hotels via Google Hotels | Requires SerpAPI key; NOT officially affiliated with SerpAPI or Google |
| slack | Slack workspace messaging and collaboration integration | 0.0.6 | Not Started | Yes | Teams using Slack for team communication | Requires Slack Bot Token; NOT officially affiliated with Slack |
| ssh | SSH remote server management with agent authentication | 0.1.4 | Not Started | Yes | Developers needing SSH access to remote servers | Supports SSH agent for passphrase-protected keys |
| twist | Twist team messaging and collaboration platform integration | 0.2.2 | Not Started | Yes | Teams using Twist for asynchronous communication | Requires Twist API bearer token and workspace ID |
| vercel | Vercel deployment management and runtime log retrieval | 0.1.2 | Not Started | Yes | Developers using Vercel for deployment and hosting | Requires Vercel API token; Published as vercel-platform-mcp-server; NOT officially affiliated with Vercel |
| google-docs | MCP server for Google Docs integration with OAuth2 and service account support | 0.1.2 | Not Started | Yes | TBD | TBD |
Contributing
See CONTRIBUTING.md.
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