middleware MCP servers

11 tagged middleware, measured the same way as everything else here.

Browse within: framework 6api 5express 5fastify 5http 5

ai-elements

01

felipebarcelospro/igniter-js

MCP server Cursor

One of 5 in mcp.json

MCP server "ai-elements", hosted remotely at registry.ai-sdk.dev, as configured in felipebarcelospro/igniter-js.

not rated 241 8d ago A tokens not measured original Apache-2.0

humane-proxy

02

Vishisht16/Humane-Proxy

MCP server Claude CodeCodexCursor +2

Lightweight, plug-and-play AI safety middleware that protects humans. Runs locally from the humane-proxy Python package. Needs 2 environment variables to run.

not rated 28 2mo ago A tokens not measured original Apache-2.0

koma-gate-mcp

03

swnotmetal/Project-Koma

MCP server Claude CodeCodexCursor +2

One of 2 in server.json

Classifies prompt injection, jailbreaks, and out-of-scope user input before agents act on it. Runs locally from the koma-gate-mcp npm package. Needs 6 environment variables to run.

not rated 13 +1 4d ago A tokens not measured original MIT

bridgemcp-py

04

Arsie-codes/bridgemcp

MCP server Claude CodeCodexCursor +2

A Python framework for building MCP servers. Runs locally from the bridgemcp-py Python package.

not rated 1 2mo ago A tokens not measured original MIT

agent-handoff

05

jordan23wagner-ops/agent-handoff

MCP server Claude CodeCodexCursor +2

Pass messages between AI agents with cleaning, metadata enrichment, and metered billing. Remote server at agent-handoff-production-573c.up.railway.app.

not rated 0 2mo ago A tokens not measured

mcp-l402-gate

06

zekebuilds-lab/mcp-l402-gate

MCP server Claude CodeCodexCursor +2

L402 Lightning paywall + DoI score gate for MCP tools: challenge, verify, score. Runs locally from the @powforge/mcp-l402-gate npm package. Needs 2 environment variables to run.

not rated 0 5mo ago A tokens not measured

mcp-api-connect

07

bvenkata/mcp-api-connect

MCP server Claude CodeCodexCursor +2

Protocol- and auth-agnostic API connector engine: send one normalized payload, reach REST or SOAP services behind any auth scheme — as a library, HTTP API, or MCP server. Runs locally from the mcp-api-connect Python package.

not rated 0 7d ago A tokens not measured original Apache-2.0

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: