diff --git a/Gopkg.lock b/Gopkg.lock
index 228f021..8467342 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,6 +2,7 @@
 
 
 [[projects]]
+  digest = "1:8bdd161127646f035e63906b6fd7be11a25a16194f92b59214927f1b418f6c22"
   name = "github.com/coreos/etcd"
   packages = [
     "auth/authpb",
@@ -10,121 +11,151 @@
     "etcdserver/api/v3rpc/rpctypes",
     "etcdserver/etcdserverpb",
     "mvcc/mvccpb",
-    "pkg/types"
+    "pkg/types",
   ]
+  pruneopts = "UT"
   revision = "2cf9e51d2a78003b164c2998886158e60ded1cbb"
   version = "v3.3.11"
 
 [[projects]]
+  digest = "1:ffe9824d294da03b391f44e1ae8281281b4afc1bdaa9588c9097785e3af10cec"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
+  pruneopts = "UT"
   revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
   version = "v1.1.1"
 
 [[projects]]
+  digest = "1:a9c85389dbd301c97a3499fe15a2b65b505b5f0cb0f1120dea59f1f3d6b11d96"
   name = "github.com/gogo/protobuf"
   packages = [
     "gogoproto",
     "proto",
-    "protoc-gen-gogo/descriptor"
+    "protoc-gen-gogo/descriptor",
   ]
+  pruneopts = "UT"
   revision = "4cbf7e384e768b4e01799441fdf2a706a5635ae7"
   version = "v1.2.0"
 
 [[projects]]
+  digest = "1:4c0989ca0bcd10799064318923b9bc2db6b4d6338dd75f3f2d86c3511aaaf5cf"
   name = "github.com/golang/protobuf"
   packages = [
     "proto",
     "ptypes",
     "ptypes/any",
     "ptypes/duration",
-    "ptypes/timestamp"
+    "ptypes/timestamp",
   ]
+  pruneopts = "UT"
   revision = "aa810b61a9c79d51363740d207bb46cf8e620ed5"
   version = "v1.2.0"
 
 [[projects]]
+  digest = "1:2b7795576f6f15c68487b332fcdd723ef52df627fa34a57d62255d6d1349482d"
   name = "github.com/heetch/confita"
   packages = [
     ".",
     "backend",
     "backend/env",
-    "backend/flags"
+    "backend/flags",
   ]
+  pruneopts = "UT"
   revision = "67096f89cfbe7bfed88e320a8bf4399f50a29667"
   version = "v0.5.1"
 
 [[projects]]
+  digest = "1:0981502f9816113c9c8c4ac301583841855c8cf4da8c72f696b3ebedf6d0e4e5"
   name = "github.com/mattn/go-isatty"
   packages = ["."]
+  pruneopts = "UT"
   revision = "6ca4dbf54d38eea1a992b3c722a76a5d1c4cb25c"
   version = "v0.0.4"
 
 [[projects]]
+  digest = "1:cf31692c14422fa27c83a05292eb5cbe0fb2775972e8f1f8446a71549bd8980b"
   name = "github.com/pkg/errors"
   packages = ["."]
+  pruneopts = "UT"
   revision = "ba968bfe8b2f7e042a574c888954fccecfa385b4"
   version = "v0.8.1"
 
 [[projects]]
+  digest = "1:0028cb19b2e4c3112225cd871870f2d9cf49b9b4276531f03438a88e94be86fe"
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
+  pruneopts = "UT"
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
 [[projects]]
+  digest = "1:2e76a73cb51f42d63a2a1a85b3dc5731fd4faf6821b434bd0ef2c099186031d6"
   name = "github.com/rs/xid"
   packages = ["."]
+  pruneopts = "UT"
   revision = "15d26544def341f036c5f8dca987a4cbe575032c"
   version = "v1.2.1"
 
 [[projects]]
+  digest = "1:e8b399407b20da4125acce061053fd230013ec65cd07fa90ba72bba57cd85232"
   name = "github.com/rs/zerolog"
   packages = [
     ".",
     "hlog",
     "internal/cbor",
     "internal/json",
-    "log"
+    "log",
   ]
+  pruneopts = "UT"
   revision = "8747b7b3a51b5d08ee7ac50eaf4869edaf9f714a"
   version = "v1.11.0"
 
 [[projects]]
+  digest = "1:c2a594011eed07da14918c519a5b1d08e4bafb2497037f6a426dc310428df4d3"
   name = "github.com/segmentio/ksuid"
   packages = ["."]
+  pruneopts = "UT"
   revision = "ffd9a8aaaf8f40792e055371eba06542348e991e"
   version = "v1.0.2"
 
 [[projects]]
+  digest = "1:5da8ce674952566deae4dbc23d07c85caafc6cfa815b0b3e03e41979cedb8750"
   name = "github.com/stretchr/testify"
   packages = [
     "assert",
-    "require"
+    "require",
   ]
+  pruneopts = "UT"
   revision = "ffdc059bfe9ce6a4e144ba849dbedead332c6053"
   version = "v1.3.0"
 
 [[projects]]
+  digest = "1:e406c8abe158c24e64775a6381085014943301ffa175a7b53c33cb391ff9b4f2"
   name = "github.com/tidwall/gjson"
   packages = ["."]
+  pruneopts = "UT"
   revision = "5a96cfda705e1762dc0671e26b0b78925ad97e29"
   version = "v1.1.5"
 
 [[projects]]
+  digest = "1:8453ddbed197809ee8ca28b06bd04e127bec9912deb4ba451fea7a1eca578328"
   name = "github.com/tidwall/match"
   packages = ["."]
+  pruneopts = "UT"
   revision = "33827db735fff6510490d69a8622612558a557ed"
   version = "v1.0.1"
 
 [[projects]]
+  digest = "1:f23222558887a5919f8e9021ecb205395de463f031dd0c049e6e8e547b57c3f4"
   name = "github.com/zenazn/goji"
   packages = ["web/mutil"]
+  pruneopts = "UT"
   revision = "64eb34159fe53473206c2b3e70fe396a639452f2"
   version = "v1.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:9d2f08c64693fbe7177b5980f80c35672c80f12be79bb3bc86948b934d70e4ee"
   name = "golang.org/x/net"
   packages = [
     "context",
@@ -134,17 +165,21 @@
     "http2/hpack",
     "idna",
     "internal/timeseries",
-    "trace"
+    "trace",
   ]
+  pruneopts = "UT"
   revision = "ed066c81e75eba56dd9bd2139ade88125b855585"
 
 [[projects]]
   branch = "master"
+  digest = "1:64ec1e1de5cec5e1579df2ff7ac10b20e3bf1cb4393846f631fb204dd9cb44f6"
   name = "golang.org/x/sys"
   packages = ["unix"]
+  pruneopts = "UT"
   revision = "054c452bb702e465e95ce8e7a3d9a6cf0cd1188d"
 
 [[projects]]
+  digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
   name = "golang.org/x/text"
   packages = [
     "collate",
@@ -160,18 +195,22 @@
     "unicode/bidi",
     "unicode/cldr",
     "unicode/norm",
-    "unicode/rangetable"
+    "unicode/rangetable",
   ]
+  pruneopts = "UT"
   revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
   version = "v0.3.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:077c1c599507b3b3e9156d17d36e1e61928ee9b53a5b420f10f28ebd4a0b275c"
   name = "google.golang.org/genproto"
   packages = ["googleapis/rpc/status"]
+  pruneopts = "UT"
   revision = "db91494dd46c1fdcbbde05e5ff5eb56df8f7d79a"
 
 [[projects]]
+  digest = "1:6dfe7f3314a390dc9e21368dd41236169bf40ae69674f42b7bd45db537751a94"
   name = "google.golang.org/grpc"
   packages = [
     ".",
@@ -205,14 +244,34 @@
     "resolver/passthrough",
     "stats",
     "status",
-    "tap"
+    "tap",
   ]
+  pruneopts = "UT"
   revision = "a02b0774206b209466313a0b525d2c738fe407eb"
   version = "v1.18.0"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "ec00bf4786126c0ac9f2050e8dc7e33cac48b415c6035832a24df5a7824f17b0"
+  input-imports = [
+    "github.com/coreos/etcd/clientv3",
+    "github.com/coreos/etcd/clientv3/concurrency",
+    "github.com/coreos/etcd/mvcc/mvccpb",
+    "github.com/gogo/protobuf/proto",
+    "github.com/golang/protobuf/proto",
+    "github.com/heetch/confita",
+    "github.com/heetch/confita/backend",
+    "github.com/heetch/confita/backend/env",
+    "github.com/heetch/confita/backend/flags",
+    "github.com/mattn/go-isatty",
+    "github.com/pkg/errors",
+    "github.com/rs/zerolog",
+    "github.com/rs/zerolog/hlog",
+    "github.com/segmentio/ksuid",
+    "github.com/stretchr/testify/assert",
+    "github.com/stretchr/testify/require",
+    "github.com/tidwall/gjson",
+    "golang.org/x/net/context/ctxhttp",
+  ]
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/store/service.go b/store/service.go
index 0301287..d2a3c03 100644
--- a/store/service.go
+++ b/store/service.go
@@ -46,11 +46,11 @@ type ListOptions struct {
 
 // RulesetEntry holds a ruleset and its metadata.
 type RulesetEntry struct {
-	Path      string
-	Version   string
-	Ruleset   *regula.Ruleset
-	Signature *regula.Signature
-	Versions  []string
+	Path      string            `json:"path"`
+	Version   string            `json:"version"`
+	Ruleset   *regula.Ruleset   `json:"rules"`
+	Signature *regula.Signature `json:"signature"`
+	Versions  []string          `json:"versions"`
 }
 
 // RulesetEntries holds a list of ruleset entries.
diff --git a/ui/app/src/views/LatestRuleset/LatestRuleset.vue b/ui/app/src/views/LatestRuleset/LatestRuleset.vue
index 1f13112..c46819e 100644
--- a/ui/app/src/views/LatestRuleset/LatestRuleset.vue
+++ b/ui/app/src/views/LatestRuleset/LatestRuleset.vue
@@ -7,7 +7,9 @@
         <v-toolbar color="grey" dark>
           <v-toolbar-title>Parameters</v-toolbar-title>
         </v-toolbar>
-        <v-card class="height-card scroll">
+        <v-card class="height-card scroll"
+                            v-if="typeof(ruleset.signature) != 'undefined'"
+>
           <v-card-text
             v-for="param in ruleset.signature.params"
             :key="param.name"
@@ -19,7 +21,9 @@
         <v-toolbar color="grey" dark>
           <v-toolbar-title>Return type</v-toolbar-title>
         </v-toolbar>
-        <v-card class="height-card">
+        <v-card class="height-card"
+                v-if="typeof(ruleset.signature) != 'undefined'"
+                >
           <v-card-text>{{ruleset.signature.returnType}}</v-card-text>
         </v-card>
       </v-flex>
@@ -49,8 +53,8 @@
 </template>
 
 <script>
-// import axios from 'axios';
-import { Ruleset, Rule, Signature, Param } from '../NewRuleset/ruleset';
+import axios from 'axios';
+// import { Ruleset, Rule, Signature, Param } from '../NewRuleset/ruleset';
 import Rules from '../NewRuleset/Rules.vue';
 
 export default {
@@ -64,34 +68,22 @@ export default {
     },
   },
 
-  data() {
-    return {
-      ruleset: new Ruleset({
-        path: this.path,
-        signature: new Signature('string', [
-          new Param('foo', 'string'),
-          new Param('bar', 'int64'),
-          new Param('baz', 'float64'),
-          new Param('baz1', 'float64'),
-          new Param('baz2', 'float64'),
-          new Param('baz3', 'float64'),
-          new Param('baz4', 'float64'),
-        ]),
+  data: () => ({
+    ruleset: {},
+  }),
+
+  mounted() {
+    this.fetchRuleset();
+  },
 
-        rules: [
-          new Rule(
-            `(and
-                (eq 1 1)
-                (eq 2 2)
-              )`,
-            'wesh',
-          ),
-          new Rule('#true', 'bien'),
-        ],
-        version: 'abc123',
-        versions: ['def123', 'ghi123', 'xyz123'],
-      }),
-    };
+  methods: {
+    fetchRuleset() {
+      const uri = '/ui/i/rulesets/' + this.path;
+      return axios
+        .get(uri)
+        .then(({ data = {} }) => { this.ruleset = data; })
+        .catch(error => error);
+    },
   },
 };
 </script>
diff --git a/ui/app/yarn.lock b/ui/app/yarn.lock
index 924ee56..dbb7924 100644
--- a/ui/app/yarn.lock
+++ b/ui/app/yarn.lock
@@ -1177,7 +1177,7 @@ ajv@^5.2.3, ajv@^5.3.0:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
-ajv@^6.1.0, ajv@^6.5.5:
+ajv@^6.1.0:
   version "6.7.0"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.7.0.tgz#e3ce7bb372d6577bb1839f1dfdfcbf5ad2948d96"
   integrity sha512-RZXPviBTtfmtka9n9sy1N5M5b82CbxWIR6HIis4s3WQTXDJamc/0gpCWNGz6EWdWp4DOfjzJfhz/AS9zVPjjWg==
@@ -1187,6 +1187,16 @@ ajv@^6.1.0, ajv@^6.5.5:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^6.5.5:
+  version "6.10.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.0.tgz#90d0d54439da587cd7e843bfb7045f50bd22bdf1"
+  integrity sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==
+  dependencies:
+    fast-deep-equal "^2.0.1"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.4.1"
+    uri-js "^4.2.2"
+
 alphanum-sort@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
@@ -1869,11 +1879,6 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
-builtin-modules@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
-  integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
-
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
@@ -4688,13 +4693,6 @@ is-buffer@^1.1.5:
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
 
-is-builtin-module@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
-  integrity sha1-VAVy0096wxGfj3bDDLwbHgN6/74=
-  dependencies:
-    builtin-modules "^1.0.0"
-
 is-callable@^1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.4.tgz#1e1adf219e1eeb684d691f9d6a05ff0d30a24d75"
@@ -5285,12 +5283,7 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash.assign@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
-  integrity sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=
-
-lodash.clonedeep@^4.3.2, lodash.clonedeep@^4.5.0:
+lodash.clonedeep@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
   integrity sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=
@@ -5325,11 +5318,6 @@ lodash.memoize@^4.1.2:
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
   integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
 
-lodash.mergewith@^4.6.0:
-  version "4.6.1"
-  resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz#639057e726c3afbdb3e7d42741caa8d6e4335927"
-  integrity sha512-eWw5r+PYICtEBgrBE5hhlT6aAa75f411bgDz/ZL2KZqYV03USvucsxcHUIlGTDTECs1eunpI7HOV7U+WLDvNdQ==
-
 lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
@@ -5546,12 +5534,24 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
+mime-db@1.40.0:
+  version "1.40.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.40.0.tgz#a65057e998db090f732a68f6c276d387d4126c32"
+  integrity sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==
+
 "mime-db@>= 1.36.0 < 2", mime-db@~1.37.0:
   version "1.37.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
   integrity sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==
 
-mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
+mime-types@^2.1.12, mime-types@~2.1.19:
+  version "2.1.24"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.24.tgz#b6f8d0b3e951efb77dedeca194cff6d16f676f81"
+  integrity sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==
+  dependencies:
+    mime-db "1.40.0"
+
+mime-types@~2.1.17, mime-types@~2.1.18:
   version "2.1.21"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
   integrity sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==
@@ -5759,7 +5759,12 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-nan@^2.10.0, nan@^2.9.2:
+nan@^2.13.2:
+  version "2.13.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
+  integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
+
+nan@^2.9.2:
   version "2.12.1"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.12.1.tgz#7b1aa193e9aa86057e3c7bbd0ac448e770925552"
   integrity sha512-JY7V6lRkStKcKTvHO5NVSQRv+RV+FIL5pvDoLiAtSL9pKlC5x9PKQcZDsq7m4FO4d57mkhC6Z+QhAh3Jdk5JFw==
@@ -5902,9 +5907,9 @@ node-releases@^1.1.3:
     semver "^5.3.0"
 
 node-sass@^4.9.0:
-  version "4.11.0"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.11.0.tgz#183faec398e9cbe93ba43362e2768ca988a6369a"
-  integrity sha512-bHUdHTphgQJZaF1LASx0kAviPH7sGlcyNhWade4eVIpFp6tsn7SV8xNMTbsQFpEV9VXpnwTTnNYlfsZXgGgmkA==
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.12.0.tgz#0914f531932380114a30cc5fa4fa63233a25f017"
+  integrity sha512-A1Iv4oN+Iel6EPv77/HddXErL2a+gZ4uBeZUy+a8O35CFYTXhgA8MgLCWBtwpGZdCvTvQ9d+bQxX/QC36GDPpQ==
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"
@@ -5913,12 +5918,10 @@ node-sass@^4.9.0:
     get-stdin "^4.0.1"
     glob "^7.0.3"
     in-publish "^2.0.0"
-    lodash.assign "^4.2.0"
-    lodash.clonedeep "^4.3.2"
-    lodash.mergewith "^4.6.0"
+    lodash "^4.17.11"
     meow "^3.7.0"
     mkdirp "^0.5.1"
-    nan "^2.10.0"
+    nan "^2.13.2"
     node-gyp "^3.8.0"
     npmlog "^4.0.0"
     request "^2.88.0"
@@ -5947,12 +5950,12 @@ nopt@^4.0.1:
     osenv "^0.1.4"
 
 normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
-  integrity sha512-9jjUFbTPfEy3R/ad/2oNbKtW9Hgovl5O1FvFWKkKblNXoN/Oou6+9+KKohPK13Yc3/TyunyWhJp6gvRNR/PPAw==
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
+  integrity sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==
   dependencies:
     hosted-git-info "^2.1.4"
-    is-builtin-module "^1.0.0"
+    resolve "^1.10.0"
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
@@ -7341,6 +7344,13 @@ resolve-url@^0.2.1:
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
+resolve@^1.10.0:
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.10.1.tgz#664842ac960795bbe758221cdccda61fb64b5f18"
+  integrity sha512-KuIe4mf++td/eFb6wkaPbMDnP6kObCaEtIDuHOUED6MNUo4K670KZUHuuvYPZDxNF0WVLw49n06M2m2dXphEzA==
+  dependencies:
+    path-parse "^1.0.6"
+
 resolve@^1.3.2, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.8.1, resolve@^1.9.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.10.0.tgz#3bdaaeaf45cc07f375656dfd2e54ed0810b101ba"
@@ -7510,7 +7520,12 @@ selfsigned@^1.9.1:
   dependencies:
     node-forge "0.7.5"
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.5.1, semver@^5.6.0:
+"semver@2 || 3 || 4 || 5":
+  version "5.7.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.0.tgz#790a7cf6fea5459bac96110b29b60412dc8ff96b"
+  integrity sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==
+
+semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.5.1, semver@^5.6.0:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
@@ -7807,9 +7822,9 @@ spdx-expression-parse@^3.0.0:
     spdx-license-ids "^3.0.0"
 
 spdx-license-ids@^3.0.0:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.3.tgz#81c0ce8f21474756148bbb5f3bfc0f36bf15d76e"
-  integrity sha512-uBIcIl3Ih6Phe3XHK1NqboJLdGfwr1UN3k6wSD1dZpmPsIkb8AGNbZYJ1fOBk834+Gxy8rpfDxrS6XLEMZMY2g==
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.4.tgz#75ecd1a88de8c184ef015eafb51b5b48bfd11bb1"
+  integrity sha512-7j8LYJLeY/Yb6ACbQ7F76qy5jHkp0U6jgBfJsk97bwWlVUnUWsAgpyaCvo17h0/RQGnQ036tVDomiwoI4pDkQA==
 
 spdy-transport@^3.0.0:
   version "3.0.0"
@@ -7847,9 +7862,9 @@ sprintf-js@~1.0.2:
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
 sshpk@^1.7.0:
-  version "1.16.0"
-  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.16.0.tgz#1d4963a2fbffe58050aa9084ca20be81741c07de"
-  integrity sha512-Zhev35/y7hRMcID/upReIvRse+I9SVhyVre/KTJSJQWMz3C3+G+HpO7m1wK/yckEtujKZ7dS4hkVxAnmHaIGVQ==
+  version "1.16.1"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.16.1.tgz#fb661c0bef29b39db40769ee39fa70093d6f6877"
+  integrity sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==
   dependencies:
     asn1 "~0.2.3"
     assert-plus "^1.0.0"
diff --git a/ui/handler.go b/ui/handler.go
index e78a4ab..3577ac6 100644
--- a/ui/handler.go
+++ b/ui/handler.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"strconv"
+	"strings"
 
 	"github.com/heetch/regula"
 	reghttp "github.com/heetch/regula/http"
@@ -120,6 +121,58 @@ func (h *internalHandler) handleNewRulesetRequest(w http.ResponseWriter, r *http
 
 }
 
+func (h *internalHandler) handleSingleRuleset(w http.ResponseWriter, r *http.Request) {
+	path := strings.TrimPrefix(r.URL.Path, "/rulesets/")
+
+	if path == "" {
+		h.handleListRequest(w, r)
+		return
+	}
+	srr := &singleRulesetResponse{
+		Path: path,
+	}
+
+	entry, err := h.service.Get(r.Context(), path, "")
+	if err != nil {
+		if err == store.ErrNotFound {
+			writeError(w, r, err, http.StatusNotFound)
+			return
+		}
+
+		writeError(w, r, err, http.StatusInternalServerError)
+		return
+	}
+	srr.Version = entry.Version
+	srr.Versions = entry.Versions
+	srr.Signature = signature{
+		ReturnType: entry.Signature.ReturnType,
+	}
+	for name, typ := range entry.Signature.ParamTypes {
+		srr.Signature.Params = append(srr.Signature.Params,
+			param{"name": name, "type": typ})
+	}
+	for _, ri := range entry.Ruleset.Rules {
+		sv, err := sexpr.PrettyPrint(0, 80, ri.Expr)
+		if err != nil {
+			writeError(w, r, err, http.StatusInternalServerError)
+			return
+		}
+		rv, err := sexpr.PrettyPrint(0, 80, ri.Result)
+		if err != nil {
+			writeError(w, r, err, http.StatusInternalServerError)
+			return
+		}
+
+		o := rule{
+			SExpr:       sv,
+			ReturnValue: rv,
+		}
+		srr.Ruleset = append(srr.Ruleset, o)
+	}
+
+	reghttp.EncodeJSON(w, r, srr, http.StatusOK)
+}
+
 // handleListRequest attempts to return a list of Rulesets based on the data provided in a GET request to the ruleset endpoint.
 func (h *internalHandler) handleListRequest(w http.ResponseWriter, r *http.Request) {
 	type ruleset struct {
@@ -166,30 +219,15 @@ func (h *internalHandler) rulesetsHandler() http.Handler {
 		case "POST":
 			h.handleNewRulesetRequest(w, r)
 		case "GET":
-			h.handleListRequest(w, r)
+			if _, ok := r.URL.Query()["list"]; ok {
+				h.handleListRequest(w, r)
+				return
+			}
+			h.handleSingleRuleset(w, r)
 		}
 	})
 }
 
-type param map[string]string
-
-type signature struct {
-	Params     []param `json:"params"`
-	ReturnType string
-}
-
-type rule struct {
-	SExpr       string `json:"sExpr"`
-	ReturnValue string `json:"returnValue"`
-}
-
-// newRulesetRequest is the unmarshaled form a new ruleset request.
-type newRulesetRequest struct {
-	Path      string    `json:"path"`
-	Signature signature `json:"signature"`
-	Rules     []rule    `json:"rules"`
-}
-
 // convertParams takes a slice of param, unmarshalled from a
 // newRulesetRequest, and returns an equivalent sexpr.Parameters map.
 func convertParams(input []param) (sexpr.Parameters, error) {
@@ -340,3 +378,30 @@ func (re RuleError) MarshalJSON() ([]byte, error) {
 	}
 	return json.Marshal(err)
 }
+
+type param map[string]string
+
+type signature struct {
+	Params     []param `json:"params"`
+	ReturnType string  `json:"returnType"`
+}
+
+type rule struct {
+	SExpr       string `json:"sExpr"`
+	ReturnValue string `json:"returnValue"`
+}
+
+// newRulesetRequest is the unmarshaled form a new ruleset request.
+type newRulesetRequest struct {
+	Path      string    `json:"path"`
+	Signature signature `json:"signature"`
+	Rules     []rule    `json:"rules"`
+}
+
+type singleRulesetResponse struct {
+	Path      string    `json:"path"`
+	Version   string    `json:"version"`
+	Ruleset   []rule    `json:"rules"`
+	Signature signature `json:"signature"`
+	Versions  []string  `json:"versions"`
+}
diff --git a/ui/handler_test.go b/ui/handler_test.go
index 8574311..8e1221f 100644
--- a/ui/handler_test.go
+++ b/ui/handler_test.go
@@ -2,6 +2,7 @@ package ui
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
@@ -10,6 +11,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/heetch/regula"
 	"github.com/heetch/regula/mock"
 	regrule "github.com/heetch/regula/rule"
 	"github.com/heetch/regula/rule/sexpr"
@@ -219,3 +221,52 @@ func TestConvertParams(t *testing.T) {
 		})
 	}
 }
+
+func TestSingleRulesetHandler(t *testing.T) {
+	s := new(mock.RulesetService)
+
+	s.GetFn = func(ctx context.Context, path, v string) (*store.RulesetEntry, error) {
+		require.Equal(t, "a/nice/ruleset", path)
+
+		entry := &store.RulesetEntry{
+			Path:    path,
+			Version: "2",
+			Ruleset: &regula.Ruleset{
+				Rules: []*regrule.Rule{
+					&regrule.Rule{
+						Expr:   regrule.BoolValue(true),
+						Result: regrule.StringValue("Hello"),
+					},
+				},
+				Type: "string",
+			}, //    *regula.Ruleset
+			Signature: &regula.Signature{
+				ParamTypes: map[string]string{
+					"foo": "int64",
+					"bar": "string",
+				},
+				ReturnType: "string",
+			}, //*regula.Signature
+			Versions: []string{"1", "2"},
+		}
+		return entry, nil
+	}
+	defer func() { s.GetFn = nil }()
+
+	rec := doRequest(NewHandler(s, http.Dir("")), "GET", "/i/rulesets/a/nice/ruleset", nil)
+	require.Equal(t, http.StatusOK, rec.Code)
+	body := rec.Body.Bytes()
+	// Note: we could use require.JSONEq here, but the ordering of
+	// params and rules are not stable and JSONEq can't cope with
+	// disparate ordering.
+	srr := &singleRulesetResponse{}
+	err := json.Unmarshal(body, srr)
+	require.NoError(t, err)
+	require.Equal(t, "a/nice/ruleset", srr.Path)
+	require.Equal(t, "2", srr.Version)
+	require.Equal(t, []rule{{SExpr: "#true", ReturnValue: "\"Hello\""}}, srr.Ruleset)
+	require.Contains(t, srr.Signature.Params, param{"name": "foo", "type": "int64"})
+	require.Contains(t, srr.Signature.Params, param{"name": "bar", "type": "string"})
+	require.Equal(t, "string", srr.Signature.ReturnType)
+	require.Equal(t, 1, s.GetCount)
+}