{"id":"dvindas-s3-toolbox-mcp-server","name":"s3-toolbox-mcp-server","homepage":null,"repo_url":"https://github.com/dvindas/s3-toolbox-mcp-server","category":"storage","subcategories":[],"tags":["mcp","s3","aws","spring-boot","spring-ai","stdio","automation","tools","agent-integration"],"what_it_does":"An MCP server (STDIO transport) that exposes AWS S3 operations to an AI agent via Model Context Protocol tools: list buckets, list objects, upload (Base64 content), download, get object metadata, and delete objects. It uses Spring Boot/Spring AI MCP and AWS SDK v2; AWS credentials are provided to the process via environment variables.","use_cases":["Agent-assisted S3 exploration (browse buckets/keys by prefix)","Automating uploads/downloads based on natural-language requests","Retrieving S3 object metadata for workflows","Deleting objects as part of cleanup or lifecycle tasks"],"not_for":["Highly sensitive or compliance-constrained environments without additional guardrails/least-privilege design","Use cases requiring strict auditability, approvals, or human-in-the-loop controls (not described)","Public-facing deployments (runs as a local MCP process via STDIO; no network hardening described)"],"best_when":"You want local/desktop integration with an MCP-compatible client/IDE and can provision least-privilege AWS credentials for the server process.","avoid_when":"You cannot control/validate which buckets/keys the agent can access, or you need documented quotas/retry/idempotency behavior for safe automation.","alternatives":["Direct AWS SDK v2 calls from your application","Use an AWS automation service (e.g., Lambda + function-specific APIs) with an agent-facing wrapper","Build a small custom MCP server around S3 using your existing auth/allowlist logic","Use existing S3-related agent tools (if available) that enforce allowlists and safety checks"],"af_score":47.5,"security_score":32.8,"reliability_score":18.8,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T19:59:25.842906+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["AWS IAM credentials via environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)"],"oauth":false,"scopes":false,"notes":"No OAuth/scoped token mechanism is described for the MCP server itself; authorization is delegated to the AWS credentials used by the process. Least-privilege IAM policy design is critical but not documented here."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Pricing for the server itself is not described; AWS usage costs apply for S3 operations."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":47.5,"security_score":32.8,"reliability_score":18.8,"mcp_server_quality":72.0,"documentation_accuracy":65.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":55.0,"rate_limit_clarity":5.0,"tls_enforcement":20.0,"auth_strength":45.0,"scope_granularity":10.0,"dependency_hygiene":50.0,"secret_handling":40.0,"security_notes":"Security depends on AWS IAM policy assigned to the provided credentials. The README shows long-lived access keys via environment variables but does not discuss secret handling beyond that, nor does it describe key logging avoidance, bucket/key allowlists, or confirmation workflows for destructive operations. TLS is not directly applicable to STDIO transport, but AWS calls inherently use HTTPS by the AWS SDK; explicit enforcement/assurance is not documented. No scoped authorization model for MCP tools is described beyond the AWS credentials themselves.","uptime_documented":0.0,"version_stability":30.0,"breaking_changes_history":20.0,"error_recovery":25.0,"idempotency_support":"false","idempotency_notes":"Upload/delete semantics for retries and idempotency are not described; AWS SDK operations may be non-idempotent depending on parameters (e.g., repeated put can overwrite).","pagination_style":"unknown","retry_guidance_documented":false,"known_agent_gotchas":["Agent may request operations on unintended buckets/keys; no allowlist/guardrails are described","Uploads require base64 content; large files may hit size/time limits (not documented)","Deletion is destructive; no confirmation/soft-delete policy described","No documented pagination/max-results behavior for list operations (could be partial results or truncation)"]}}