diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+/.*
+!/.gitignore
+!/.travis.yml
+package-lock.json
+/bower_components/
+/node_modules/
+/output/
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
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diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+# purescript-halogen-proxy
+
+[![Latest release](http://img.shields.io/github/release/slamdata/purescript-halogen-proxy.svg)](https://github.com/slamdata/purescript-halogen-proxy/releases)
+[![Build status](https://travis-ci.org/slamdata/purescript-halogen-proxy.svg?branch=master)](https://travis-ci.org/slamdata/purescript-halogen-proxy)
+[![Dependency status](https://img.shields.io/librariesio/github/slamdata/purescript-halogen-proxy.svg)](https://libraries.io/github/slamdata/purescript-halogen-proxy)
+
+A component utility for Halogen that proxies an inner component to hide all or part of its query algebra.
+
+## Installation
+
+```
+bower install purescript-halogen-proxy
+```
+
+## Documentation
+
+Module documentation is [published on Pursuit](http://pursuit.purescript.org/packages/purescript-halogen-proxy).
diff --git a/bower.json b/bower.json
new file mode 100644
index 0000000..6ffa315
--- /dev/null
+++ b/bower.json
@@ -0,0 +1,21 @@
+{
+  "name": "purescript-halogen-proxy",
+  "homepage": "https://github.com/slamdata/purescript-halogen-proxy",
+  "license": "Apache-2.0",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/slamdata/purescript-halogen-proxy.git"
+  },
+  "ignore": [
+    "**/.*",
+    "bower_components",
+    "node_modules",
+    "output",
+    "test",
+    "bower.json",
+    "package.json"
+  ],
+  "dependencies": {
+    "purescript-halogen": "^3.0.1"
+  }
+}
diff --git a/package.json b/package.json
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--- /dev/null
+++ b/package.json
@@ -0,0 +1,13 @@
+{
+  "private": true,
+  "scripts": {
+    "clean": "rimraf output && rimraf .pulp-cache",
+    "build": "pulp build -- --censor-lib --strict"
+  },
+  "devDependencies": {
+    "pulp": "^12.0.1",
+    "purescript": "^0.11.7",
+    "purescript-psa": "^0.6.0",
+    "rimraf": "^2.6.2"
+  }
+}
diff --git a/src/Halogen/Component/Proxy.purs b/src/Halogen/Component/Proxy.purs
new file mode 100644
index 0000000..e333864
--- /dev/null
+++ b/src/Halogen/Component/Proxy.purs
@@ -0,0 +1,110 @@
+module Halogen.Component.Proxy
+  ( ProxyComponent
+  , ProxyQ
+  , queryQ
+  , proxy
+  , proxyQI
+  , proxyQL
+  , proxyQR
+  , proxyTrans
+  , proxyEval
+  ) where
+
+import Prelude
+
+import Data.Const (Const(..))
+import Data.Coyoneda (Coyoneda, liftCoyoneda, unCoyoneda)
+import Data.Functor.Coproduct (Coproduct, left, right)
+import Data.Maybe (Maybe(..))
+import Data.Newtype (un)
+import Halogen as H
+import Halogen.HTML as HH
+import Halogen.HTML.Events as HE
+import Halogen.Query.HalogenM as HQ
+
+-- | The type of a proxied component.
+type ProxyComponent f i o = H.Component HH.HTML (ProxyQ f i o) i o
+
+-- | The query algebra for proxied components. The `queryQ` function is used
+-- | to construct values of this type as the constructors are private.
+data ProxyQ f i o a
+  = Query (Coyoneda f a)
+  | Receive i a
+  | Raise o a
+
+-- | Lifts a query into `ProxyQ`. Every query sent to a `ProxyComponent` will
+-- | need to go through this function.
+queryQ :: forall f i o. f ~> ProxyQ f i o
+queryQ = Query <<< liftCoyoneda
+
+-- | Proxies a component, completely hiding the original query algebra.
+proxy
+  :: forall f i o m
+  . H.Component HH.HTML f i o m
+  -> H.Component HH.HTML (ProxyQ (Const Void) i o) i o m
+proxy = proxyEval (const (absurd <<< un Const))
+
+-- | Proxies a component, reusing the original query algebra as the proxied
+-- | query algebra. Essentially creates a component that lifts `f` into
+-- | `ProxyQ`.
+proxyQI
+  :: forall f i o m
+   . H.Component HH.HTML f i o m
+  -> H.Component HH.HTML (ProxyQ f i o) i o m
+proxyQI = proxyTrans id
+
+-- | Proxies a component, hiding the left side of a coproduct query algebra
+-- | but continuing to expose the right.
+proxyQL
+  :: forall f g i o m
+   . H.Component HH.HTML (Coproduct f g) i o m
+  -> H.Component HH.HTML (ProxyQ f i o) i o m
+proxyQL = proxyTrans left
+
+-- | Proxies a component, hiding the right side of a coproduct query algebra
+-- | but continuing to expose the right.
+proxyQR
+  :: forall f g i o m
+   . H.Component HH.HTML (Coproduct f g) i o m
+  -> H.Component HH.HTML (ProxyQ g i o) i o m
+proxyQR = proxyTrans right
+
+-- | Proxies a component with a custom query algebra transform.
+proxyTrans
+  :: forall f g i o m
+   . (g ~> f)
+  -> H.Component HH.HTML f i o m
+  -> H.Component HH.HTML (ProxyQ g i o) i o m
+proxyTrans eta =
+  proxyEval \k q ->
+    H.query unit (eta q) >>= case _ of
+      Nothing -> HQ.halt "Proxy inner component query failed (this shouldn't be possible)"
+      Just a -> pure (k a)
+
+-- | Proxies a component with a function that handles the running of interior
+-- | queries.
+-- |
+-- | It's unlikely this is useful for common use cases - it's used to implement
+-- | the rest of the `proxy*` functions, but may also allow for some use cases
+-- | that were not considered by the functions provided in this library.
+proxyEval
+  :: forall f g i o m
+   . (forall a b. (b -> a) -> g b -> H.ParentDSL i (ProxyQ g i o) f Unit o m a)
+  -> H.Component HH.HTML f i o m
+  -> H.Component HH.HTML (ProxyQ g i o) i o m
+proxyEval evalQuery component =
+  H.parentComponent
+    { initialState: id
+    , render
+    , eval
+    , receiver: HE.input Receive
+    }
+  where
+    render :: i -> H.ParentHTML (ProxyQ g i o) f Unit m
+    render i = HH.slot unit component i (HE.input Raise)
+
+    eval :: ProxyQ g i o ~> H.ParentDSL i (ProxyQ g i o) f Unit o m
+    eval = case _ of
+      Query iq -> unCoyoneda evalQuery iq
+      Receive i next -> H.put i $> next
+      Raise o next -> H.raise o $> next