Remote MCP Adapter Overview

The Remote MCP Adapter is a gateway designed to enhance the functionality of MCP servers in remote environments. It acts as an intermediary between your MCP client and upstream MCP servers, specifically addressing the challenges of file handling in distributed setups. This adapter facilitates session-safe file uploads, robust artifact management, and provides comprehensive state and health controls for upstream MCP servers.

Key Features:

• File Handling Solution: Solves the problem of shared filesystem assumptions in containerized or remote server environments. It enables tools to read local files for uploads and allows clients to access generated artifacts like screenshots or PDFs.
• Upload Staging: Prepares uploads before tool execution, ensuring files are accessible to the upstream server.
• Artifact Capture: Captures files generated by tools after execution and exposes them back to the client via MCP-friendly handles and resources.
• Multi-server Relay: Allows multiple upstream MCP servers to be exposed behind a single gateway with clean per-server mount paths.
• Session Isolation: Manages uploads, artifacts, limits, and lifecycle behavior scoped to individual MCP sessions.
• State Backends: Supports in-memory state for simple setups and can be configured with SQLite and Redis for more durable deployments.
• Upstream Health Monitoring: Actively monitors upstream servers to prevent routing traffic to unhealthy instances.
• Resilience Controls: Includes support for retries, reconnect behavior, and circuit-breaker patterns for unstable upstreams.
• Security Features: Offers authentication headers, signed upload URLs, and safer boundaries for remote file operations.
• Observability: Exposes health signals and telemetry for operational insights.
• Safe Storage Behavior: Enforces path validation, cleanup, quotas, and atomic write patterns.
• Flexible Deployment: Can be deployed locally with Docker Compose, directly from source, or on Kubernetes using Helm charts.

The Remote MCP Adapter is ideal for scenarios where MCP clients and servers operate in different environments, and file-based operations are critical. It aims to make remote MCP servers feel more like local ones, especially for workflows involving extensive file manipulation.