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MCP servers tagged middleware
63 live MCP servers tagged "middleware", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with middleware.
mcp-platform
:triangular_ruler: Ts.ED is a Node.js and TypeScript framework on top of Express to write your application with TypeScript (or ES6). It provides a lot of decorators and guidelin…
Lilith Zero
⚸ Lilith Zero - Security Middleware for MCP tool calls written in Rust.
Otel Go
OpenTelemetry middleware for Go MCP servers (go-sdk)
S Oauth
Express middleware library for MCP (Model Context Protocol) OAuth authentication
Secure Server
Secure MCP Server with NGINX + Supergateway + Render
Camel Quarkus
Apache Camel Quarkus
Camel Spring Boot
Runs Camel on Spring Boot and provides starters for Camel components
Camel Kamelets
Apache Camel Kamelets Repository
Express Adapter
Express adapter for MCP servers.
Onesub
Server-side receipt validation for react-native-iap. Apple StoreKit 2 + Google Play Billing. One line: app.use(createOneSubMiddleware(config))
webappmcp
WebApp MCP - Model Context Protocol integration for web applications with server-side debugging tools
mcp
Middleware for MCP servers. Intercept or transform requests; pass the rest through.
Ronykit
API Framework supporting REST and RPC.
Agent Control Standard
The open standard for runtime agent control — declarative hooks, policy enforcement, and observability across AI agent frameworks.
Inspectr
Inspectr – easily view and analyze API requests, MCP server calls and webhook events.
Hono Telescope
Laravel Telescope-style debugging for Hono — plus an MCP server so your AI agent can read the app's live requests, exceptions and queries
Blockend
shadcn/ui for your backend — a CLI that generates production-ready TypeScript blocks (rate limiting, validation, logging) into your codebase. You own the code
GuardianWAF
Zero-dependency Web Application Firewall in Go. Single binary. Three deployment modes. Tokenizer-based detection.
Markdown For Agents
HTML to Markdown converter for AI agents. 90+% fewer tokens, one dependency, works everywhere.
CloakLLM
Open-source PII cloaking + tamper-evident audit logs for LLM API calls
Analytics Middleware
Analytics middleware for Model Context Protocol servers
Mcpose
Composable FP (Koa-style) middleware proxy builder for any MCP server
402ok
MCP server middleware for HTTP 402 Payment Required with support for multiple networks including OKX/XLayer
Helmet
Production middleware for MCP servers. Auto transport, content wrapping, health checks, graceful shutdown, auth, rate limiting, structured request logging. Wraps the official Mode…
Actionfence
Embeddable AI action firewall for MCP servers and APIs with JSON policies, signed receipts, spend caps, and simulation mode
Schema Validator
Runtime schema validation middleware for MCP tool inputs and outputs. Compatible with Zod, Valibot, ArkType.
Agent Connector
SDK/runtime for branded MCP packages: declare your server + hooks once, install across the current AI-agent coverage matrix, and collect local-first token telemetry.
Tokesave
The ultimate AI token-saving MCP middleware — compression, caching, injection shield, multi-server routing, and more.
Server Plus
MCP Server Toolkit — create Model Context Protocol servers in minutes with tools, prompts, resources, auth, middleware, logging, metrics, CLI, and testing helpers.
Mcprelay
The reliability layer for MCP tool calls — local-first policy, observability, and a dead-letter queue with replay for any stdio MCP server.
Usage Control
MCP TypeScript SDK v2 adapter for mcp-usage-control.
EJAgent
EJAgent Core is an agent harness core with runtime control, extensibility, tool safety, context management, durable sessions, branching, and observability.
Provider
x402 service provider tooling for Azeth — gate Hono endpoints behind x402 payments
Torana Edge
Hook into every step of your AI coding agent: Claude Code, Codex, Gemini or any other. A programmable local proxy: rewrite requests, swap models, transform streams and tool output…
AI Shield Py
Python LLM security middleware: prompt-injection, PII, tool-policy, cost-budget, audit. Port of ai-shield-core (TS).
Keydris Reader
A simple MCP middleware that lets MCP server exchange credentials for KIT
Smart Router
Smart MCP router that routes tools by intent and reduces context rot for LLM hosts
Maxwells Defense
Adaptive proof-of-work defense for AI agents. Asymmetric thermodynamic cost: attackers dissipate, defenders verify in O(1). Reference implementation of T-IB-09 (Adversarial Dissip…
NextMCP
A wrapper of FastMCP that has less boiler plate.
Gt8004 SDK
Official Python SDK for GT8004 — AI agent observability with MCP, A2A, x402 payment tracking. FastAPI, Flask, FastMCP middleware included.
Arcade MCP Ts
TypeScript framework for building MCP servers with built-in OAuth (21 providers), secret injection, middleware, multi-user JWT auth, and worker routes. Wraps @modelcontextprotocol…
X402 MCP Middleware
Express middleware for payment-gated MCP servers — multi-network X402 support with automatic routing, simulation, and JSON-RPC 402 compliance.
Finemcp
Production-grade Model Context Protocol (MCP) framework for Go. Build MCP servers and clients with 16 middleware, typed tools, streaming, circuit breaker, OpenTelemetry, and a zer…
Streamable Http Server
mcp-streamable-http-server provides a comprehensive development template for building StreamableHttp services with flexible authentication, dynamic service registration, customiza…
Request Guard MCP
A Rust-based MCP server for defending websites and APIs against AI scraping, with practical detection, policy enforcement, and response controls for bot traffic.
Parapet
Local-first security middleware for MCP servers. Content scanning, prompt-injection defence, trust boundaries, manifest integrity, and audit trails. No API keys, no telemetry. OWA…
SCML
Production middleware for securing agentic AI systems. Enforces least-agency policy, scans for prompt injection, gates tool calls, and logs every decision to a tamper-evident SHA-…
Namelycorp MCP Bridge
Local-first MCP Bridge exposing system tools to AI agents and automation (n8n compatible)
Mcprune
MCP middleware that prunes Playwright accessibility snapshots for LLM agents. Zero ML, 75-95% token reduction, all refs preserved.
Contextomizer
Contextomizer is an ultra-fast, deterministic library for transforming bloated tool outputs, raw APIs, documents, and messy logs into perfectly optimized context for AI Agents 🤖🚀