MCPs › Security › Horizon MCP Auth Proxy
A generic single-upstream MCP authentication proxy that wraps remote Streamable HTTP MCP servers behind Horizon OAuth, enabling clients to connect securely without carrying upstream API keys. It adds a fixed authentication header to upstream requests and supports bearer tokens, API keys, and custom headers.
Not monetized yet
Turn Horizon MCP Auth Proxy’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install Horizon MCP Auth Proxy
For anyone using Horizon MCP Auth Proxy — no Lulu account needed# stdio server — install per the repository README: https://github.com/razewang/mcp-proxy
9 field-tested tactics as a designed playbook plus skills your coding agent can run. Free.
Get the Kit →FAQ
Horizon MCP Auth Proxy installs from source — follow the repository README.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together
Your server?
This is for the person who owns Horizon MCP Auth Proxy — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
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Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/horizon-mcp-auth-proxy)