MarketNow Registry / Developer Tools / mcp-middleware
mcp-middleware
Middleware for MCP servers. Intercept or transform requests; pass the rest through.
Install
$ npx -y mcp-middlewareInstalling via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
Adoption evidence: 4 weekly registry downloads.
How MarketNow scored this
Sentinel Index Heuristics — a security-first estimate from public signals:
- Package age and release activity (stale repositories lose points)
- Verified adoption: registry downloads or GitHub stars, not follower counts
- Typosquat distance against the 150 most-installed MCP packages
- Injection markers scanned in the package description
Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.
What is mcp-middleware?
Middleware for MCP servers. Intercept or transform requests; pass the rest through. Indexed by MarketNow with trust 60/100 (Runs registry code).
How do I install it?
Run $ npx -y mcp-middleware Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
What does the trust score mean?
Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. mcp-middleware scores 60/100.