01
Straight to the source.
Call tools over the protocols they already use. HTTP, WebSocket, gRPC, or a local command — go directly from your app to your tool.
Explore the transports ↗
UTCP 1.1 · LUA 5.3 / 5.4 ↗
Every tool.
Every tool.
Just Lua.
Your tools already speak a language.
Now your Lua app speaks it, too.
Discover, search, and call tools over their native protocols.
One elegant client. A lot less glue code.
$
Run in the cloned repository · Installation guide ↗luarocks make lua-utcp-1.8-1.rockspec◇ Open source. Small by nature. MPL-2.0 licensed.
ONE CLIENT. EVERY CONNECTION.
lua-utcp.
NATIVE PROTOCOLS. SHARED POSSIBILITIES.
require("utcp")12↗
Native transportsSpeak every tool’s language
1.1
UTCP specificationBuilt on an open standard
5.3 / 5.4
Lua compatibilityA lightweight, familiar core
MPL2.0
Open sourceYours to build with
LESS PLUMBING. MORE BUILDING.Your next idea doesn’t need
Your next idea doesn’t need
another integration layer.
Keep your APIs. Keep your infrastructure.
Let a little Lua make the connection.
02
Discover. Then do.
Load a UTCP manual from a provider or register one directly. Find the right tool with local search, then call it through one consistent Lua interface.
Meet tool discovery ↗03
Trust is explicit.
Protocol allowlists are checked at registration and execution. Add a client-side Guard to allow, deny, or review tool calls before dispatch.
See how it’s secured ↗ ONE API. MANY POSSIBILITIES.
Speaks your stack.
From a simple REST endpoint to a real-time stream.
Pick a protocol. The Lua stays familiar.
One client, twelve transports. One canonical registry for your applications and AI agents.The full picture ↗
SMALL LANGUAGE. QUICK START.From zero to
From zero to
“that was easy.”
Three steps to your first tool call.
A familiar API. A native connection.
- 01
Install with LuaRocks
Clone the repository, then build the rockspec.
- 02
Connect your tools
Your client discovers the available tools.
- 03
Make the call
Get a result. Get on with building.
QUICK START
# In the cloned lua-utcp repository
luarocks make lua-utcp-1.8-1.rockspec app.lua
Use your own UTCP manual URL and tool name.
Lua 5.3 or 5.4. WebRTC needs a host-specific DataChannel adapter.
A little Lua.
A world of connections.
Build something useful. Share what you learn.
Help shape the way Lua connects to tools.