reaatech/multi-tenant-mcp

★ 0Last commit: May 17, 2026GitHub →

These packages provide a suite of modular primitives for implementing multi-tenancy within Model Context Protocol (MCP) servers. They solve the challenge of isolating resources, enforcing rate limits, tracking costs, and managing configuration for different users within a single server instance. The collection is designed as a composable middleware pipeline, allowing you to wrap standard MCP request handlers with specific cross-cutting concerns like tenant resolution and visibility policies.

agentic-ai ai ai-agents llm mcp mcp-server model-context-protocol typescript

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9 packages

multi-tenant-mcp-artifact-store

@reaatech/multi-tenant-mcp-artifact-store

v0.1.0

Provides tenant-isolated file storage with built-in path safety, quota enforcement, and TTL-based lifecycle management. It exposes `FileSystemArtifactStore` and `S3ArtifactStore` classes that implement a common `ArtifactStore` interface, with the S3 implementation requiring the `@aws-sdk/client-s3` peer dependency.

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status: published
published: 11 hours ago

multi-tenant-mcp-config-isolation

@reaatech/multi-tenant-mcp-config-isolation

v0.1.0

Manages multi-tenant application configurations by providing Zod-based schema validation, base-config inheritance, and versioned migration support. It exposes a `TenantConfigManager` class to handle merged configuration access and a `ConfigMigrationRunner` to orchestrate schema updates across tenant stores.

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status: published
published: 11 hours ago

multi-tenant-mcp-cost-accounting

@reaatech/multi-tenant-mcp-cost-accounting

v0.1.0

Calculates and tracks multi-tenant usage costs for MCP tool invocations using per-call, per-token, and tiered pricing models. It provides classes for cost calculation, in-memory state tracking, and asynchronous event emission to external billing pipelines.

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status: published
published: 11 hours ago

multi-tenant-mcp-middleware

@reaatech/multi-tenant-mcp-middleware

v0.1.0

Enforces multi-tenancy, rate limiting, and access control for Model Context Protocol (MCP) servers by providing a middleware factory that wraps request handlers. It requires the `@modelcontextprotocol/sdk` as a peer dependency and automatically filters tools, resources, and prompts based on tenant-specific visibility policies.

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status: published
published: 11 hours ago

multi-tenant-mcp-observability

@reaatech/multi-tenant-mcp-observability

v0.1.0

Provides a structured JSON logger and an LRU-bounded metrics collector for MCP servers that automatically injects tenant IDs from a `TenantContextStore`. It exports a `ConsoleTenantLogger` class for logging and a `MetricsCollector` class for tracking per-tenant usage without memory exhaustion.

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status: published
published: 11 hours ago

multi-tenant-mcp-rate-limiter

@reaatech/multi-tenant-mcp-rate-limiter

v0.1.0

Enforces per-tenant rate limits using a token-bucket algorithm via the `DefaultRateLimiter` class. It provides pluggable storage backends, including an LRU-bounded in-memory store and a Redis-backed store for distributed environments.

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status: published
published: 11 hours ago

multi-tenant-mcp-tenant-resolver

@reaatech/multi-tenant-mcp-tenant-resolver

v0.1.0

Extracts tenant identity from MCP requests using header, JWT, or API key resolvers and propagates the context through `AsyncLocalStorage`. It provides a set of resolver classes and a `TenantContextStore` to enable implicit tenant access in downstream handlers.

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status: published
published: 11 hours ago

multi-tenant-mcp-tool-visibility

@reaatech/multi-tenant-mcp-tool-visibility

v0.1.0

Provides a `VisibilityEngineImpl` class to restrict access to Model Context Protocol (MCP) tools, resources, and prompts based on tenant-specific allow-lists, deny-lists, or custom dynamic evaluation functions. It exposes a boolean `isVisible` method to filter MCP entities at runtime.

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status: published
published: 11 hours ago

multi-tenant-mcp-types

@reaatech/multi-tenant-mcp-types

v0.1.0

Provides shared TypeScript interfaces, JSON-RPC 2.0 error classes, and an LRU-evicting BoundedMap for building multi-tenant Model Context Protocol (MCP) middleware. It serves as the foundational type library for the @reaatech/multi-tenant-mcp ecosystem.