Bring Object Storage
to Windsurf
Learn how to connect Amazon S3 Bucket to Windsurf and start using 7 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Amazon S3 Bucket MCP Server?
Grant your AI agent precise, scoped access to a single Amazon S3 bucket — no more, no less. Unlike full S3 access, this integration enforces the principle of least privilege: your agent can read, write, and manage objects exclusively within one pre-configured bucket.
What you can do
- Browse Objects — List and navigate files within the bucket using prefix and delimiter filters
- Read Data — Retrieve object contents or inspect metadata (headers, content type, size) without downloading
- Write Data — Upload string or JSON content as objects directly into the bucket
- Clean Up — Delete specific objects to maintain storage hygiene
- Audit Security — Inspect the bucket's access policy and ACL to ensure compliance
How it works
- Subscribe to this server
- Enter your AWS Access Key, Secret Key, Region, and the target Bucket Name
- Your agent operates exclusively within that bucket — no access to other buckets or account-level operations
Why single-bucket?
AI agents should follow the principle of least privilege. Granting full S3 access to an autonomous agent creates unnecessary blast radius. This server confines the agent to a single bucket, which means:
- No accidental bucket creation or deletion
- No cross-bucket data exposure
- Clearer audit trail for compliance
- Safer agent-to-agent delegation
Who is this for?
- AI Engineers — give each agent a dedicated data workspace without exposing your entire cloud storage
- Data Teams — let agents process, query, and write results to a specific data lake partition
- Platform Engineers — enforce tenant isolation by assigning one bucket per agent or workflow
- Security-Conscious Teams — minimize attack surface by scoping storage access to exactly what's needed
Built-in capabilities (7)
Delete an object
Get bucket ACL
Get bucket policy
Get object content
Get object metadata
Can be filtered by prefix and delimiter. List objects in the bucket
Upload an object
Why Windsurf?
Windsurf's Cascade agent chains multiple Amazon S3 Bucket tool calls autonomously. query data, analyze results, and generate code in a single agentic session. Paste Vinkius Edge URL, reload, and all 7 tools are immediately available. Real-time tool feedback appears inline, so you see API responses directly in your editor.
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Windsurf's Cascade agent autonomously chains multiple tool calls in sequence, solving complex multi-step tasks without manual intervention
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Purpose-built for agentic workflows. Cascade understands context across your entire codebase and integrates MCP tools natively
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JSON-based configuration means zero code changes: paste a URL, reload, and all 7 tools are immediately available
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Real-time tool feedback is displayed inline, so you see API responses directly in your editor without switching contexts
Amazon S3 Bucket in Windsurf
Amazon S3 Bucket and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Amazon S3 Bucket to Windsurf through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Amazon S3 Bucket in Windsurf
The Amazon S3 Bucket MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 7 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Windsurf only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Amazon S3 Bucket for Windsurf
Every tool call from Windsurf to the Amazon S3 Bucket MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How is this different from the full Amazon S3 server?
The full Amazon S3 server gives the agent access to all buckets in your AWS account — it can list, create, and delete buckets. This server scopes the agent to a single, pre-configured bucket. The agent can only read, write, and manage objects within that bucket. This follows the principle of least privilege, which is critical for secure agent deployments.
How do I get my AWS Access Key and Secret Key?
Log in to the AWS Management Console, navigate to IAM (Identity and Access Management), and create a user with programmatic access. For this integration, we recommend a policy scoped to a single bucket (e.g., s3:GetObject, s3:PutObject, s3:DeleteObject, s3:ListBucket limited to your target bucket ARN).
Can I upload large files using this integration?
The put_object tool handles standard REST uploads and is best suited for small to medium-sized files or JSON data. For very large files, standard AWS tools utilizing Multipart Uploads are recommended.
Can my agent access multiple buckets?
Each instance of this server is scoped to exactly one bucket. If your agent needs access to multiple buckets, you can subscribe to this server multiple times — each with a different bucket configuration. This maintains strict isolation between data boundaries.
How does Windsurf discover MCP tools?
Windsurf reads the mcp_config.json file on startup and connects to each configured server via Streamable HTTP. Tools are listed in the MCP panel and available to Cascade automatically.
Can Cascade chain multiple MCP tool calls?
Yes. Cascade is an agentic system. it can plan and execute multi-step workflows, calling several tools in sequence to accomplish complex tasks without manual prompting between steps.
Does Windsurf support multiple MCP servers?
Yes. Add as many servers as needed in mcp_config.json. Each server's tools appear in the MCP panel and Cascade can use tools from different servers in a single flow.
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