diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3ab3a358..27f83de5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,7 +30,6 @@ jobs:
       - run: yarn run eslint
       - run: yarn run test:ci
       - name: Coveralls
-        if: github.ref == 'refs/heads/main'
         uses: coverallsapp/github-action@1.1.3
         env:
           NODE_COVERALLS_DEBUG: 1
diff --git a/jest.config.js b/jest.config.js
index ed3f13d7..39cf21f3 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -3,4 +3,12 @@ module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
   testMatch: ['<rootDir>/tests/**/*.ts'],
+  coverageThreshold: {
+    global: {
+      branches: 100,
+      functions: 100,
+      lines: 100,
+      statements: 100,
+    },
+  },
 }
diff --git a/src/Codec.ts b/src/Codec.ts
new file mode 100644
index 00000000..d6ac7e31
--- /dev/null
+++ b/src/Codec.ts
@@ -0,0 +1,30 @@
+/**
+ * A Codec is a combined Decoder, Encoder, and Guard.
+ *
+ * @since 1.0.1
+ */
+import { Decoder, getDecoder } from './Decoder'
+import { Encoder, getEncoder } from './Encoder'
+import { getGuard, Guard } from './Guard'
+import { SchemaExt } from './SchemaExt'
+
+/**
+ * A Codec is a combined Decoder, Encoder, and Guard.
+ *
+ * @since 1.0.1
+ * @category Model
+ */
+export interface Codec<E, A>
+  extends Decoder<unknown, A>,
+    Encoder<E, A>,
+    Guard<unknown, A> {}
+
+/**
+ * @since 1.0.1
+ * @category Interpreters
+ */
+export const getCodec = <E, A>(schema: SchemaExt<E, A>): Codec<E, A> => ({
+  ...getDecoder(schema),
+  ...getEncoder(schema),
+  ...getGuard(schema),
+})
diff --git a/tests/Codec.test.ts b/tests/Codec.test.ts
new file mode 100644
index 00000000..b412d9f5
--- /dev/null
+++ b/tests/Codec.test.ts
@@ -0,0 +1,19 @@
+import { getCodec } from '../src/Codec'
+import * as S from '../src/schemata'
+
+describe('Codec', () => {
+  describe('getCodec', () => {
+    test('decoding', () => {
+      const codec = getCodec(S.FloatFromString())
+      expect(codec.decode('1')).toEqual({ _tag: 'Right', right: 1 })
+    })
+    test('encoding', () => {
+      const codec = getCodec(S.FloatFromString())
+      expect(codec.encode(1 as S.TypeOf<ReturnType<typeof S.Float>>)).toEqual('1')
+    })
+    test('guarding', () => {
+      const codec = getCodec(S.FloatFromString())
+      expect(codec.is(1)).toEqual(true)
+    })
+  })
+})
diff --git a/yarn.lock b/yarn.lock
index eb1b2f85..2a7c0832 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1964,9 +1964,9 @@ ajv@^6.10.0, ajv@^6.12.4:
     uri-js "^4.2.2"
 
 ajv@^8.0.1:
-  version "8.11.0"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.11.0.tgz#977e91dd96ca669f54a11e23e378e33b884a565f"
-  integrity sha512-wGgprdCvMalC0BztXvitD2hC04YffAvtsUn93JbGXYLAtCUO4xd17mCCZQxUOItiBwZvJScWo8NIvQMQ71rdpg==
+  version "8.11.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.11.2.tgz#aecb20b50607acf2569b6382167b65a96008bb78"
+  integrity sha512-E4bfmKAhGiSTvMfL1Myyycaub+cUEU2/IvpylXkUu7CHBkBj1f/ikdzbD7YQ6FKUbixDxeYvB/xY4fvyroDlQg==
   dependencies:
     fast-deep-equal "^3.1.1"
     json-schema-traverse "^1.0.0"
@@ -3862,9 +3862,9 @@ globals@^11.1.0:
   integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
 
 globals@^13.6.0, globals@^13.9.0:
-  version "13.17.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-13.17.0.tgz#902eb1e680a41da93945adbdcb5a9f361ba69bd4"
-  integrity sha512-1C+6nQRb1GwGMKm2dH/E7enFAMxGTmGI7/dEdhy/DNelv85w9B72t3uc5frtMNXIbzrarJJ/lTCjcaZwbLJmyw==
+  version "13.18.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-13.18.0.tgz#fb224daeeb2bb7d254cd2c640f003528b8d0c1dc"
+  integrity sha512-/mR4KI8Ps2spmoc0Ulu9L7agOF0du1CZNQ3dke8yItYlyKNmGrkONemBbd6V8UTc1Wgcqn21t3WYB7dbRmh6/A==
   dependencies:
     type-fest "^0.20.2"
 
@@ -6666,7 +6666,7 @@ saxes@^5.0.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
 
-semver@7.x, semver@^7.2.1, semver@^7.3.2, semver@^7.3.5, semver@^7.3.7:
+semver@7.x, semver@^7.3.2, semver@^7.3.5, semver@^7.3.7:
   version "7.3.7"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.7.tgz#12c5b649afdbf9049707796e22a4028814ce523f"
   integrity sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==
@@ -6678,6 +6678,13 @@ semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@^7.2.1:
+  version "7.3.8"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.8.tgz#07a78feafb3f7b32347d725e33de7e2a2df67798"
+  integrity sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==
+  dependencies:
+    lru-cache "^6.0.0"
+
 set-blocking@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -7090,9 +7097,9 @@ synckit@^0.8.3:
     tslib "^2.4.0"
 
 table@^6.0.9:
-  version "6.8.0"
-  resolved "https://registry.yarnpkg.com/table/-/table-6.8.0.tgz#87e28f14fa4321c3377ba286f07b79b281a3b3ca"
-  integrity sha512-s/fitrbVeEyHKFa7mFdkuQMWlH1Wgw/yEXMt5xACT4ZpzWFluehAxRtUUQKPuWhaLAWhFcVx6w3oC8VKaUfPGA==
+  version "6.8.1"
+  resolved "https://registry.yarnpkg.com/table/-/table-6.8.1.tgz#ea2b71359fe03b017a5fbc296204471158080bdf"
+  integrity sha512-Y4X9zqrCftUhMeH2EptSSERdVKt/nEdijTOacGD/97EKjhQ/Qs8RTlEGABSJNNN8lac9kheH+af7yAkEWlgneA==
   dependencies:
     ajv "^8.0.1"
     lodash.truncate "^4.4.2"