diff --git a/.env.sample b/.env.sample
new file mode 100644
index 0000000..0770395
--- /dev/null
+++ b/.env.sample
@@ -0,0 +1,2 @@
+NEXT_PUBLIC_API_URL=http://localhost:4000/api/v1
+NEXT_PUBLIC_MOCK_API=FALSE
diff --git a/hooks/api.ts b/hooks/api.ts
index 0076c31..4b90691 100644
--- a/hooks/api.ts
+++ b/hooks/api.ts
@@ -1,5 +1,4 @@
-"use client";
-
+import { env } from "@/lib/env";
 import { Tx, TxSchema } from "@/types/txs";
 import {
   keepPreviousData,
@@ -8,9 +7,6 @@ import {
 } from "@tanstack/react-query";
 import { z } from "zod";
 
-//TODO - use an envfile
-const API_URL = "http://localhost:4000/api/v1";
-
 export const useTxs = (operationName?: string, tags?: Map<string, string>) => {
   const tagsObj = tags ? Object.fromEntries(tags.entries()) : undefined;
 
@@ -25,7 +21,9 @@ export const useTxs = (operationName?: string, tags?: Map<string, string>) => {
   return useQuery<Readonly<Array<Tx>>>({
     queryKey: ["txs", { operationName, tags: tagsObj }],
     queryFn: () =>
-      fetch(`${API_URL}/txs${params.size ? `?${params.toString()}` : ""}`)
+      fetch(
+        `${env.NEXT_PUBLIC_API_URL}/txs${params.size ? `?${params.toString()}` : ""}`,
+      )
         .then((res) => res.json())
         .then(({ txs }) => z.array(TxSchema).parse(txs)),
     placeholderData: keepPreviousData,
@@ -38,7 +36,7 @@ export const useTx = (id: string) => {
   return useQuery<Readonly<Array<Tx>>>({
     queryKey: ["tx", id],
     queryFn: () =>
-      fetch(`${API_URL}/txs?traceID=${id}`)
+      fetch(`${env.NEXT_PUBLIC_API_URL}/txs?traceID=${id}`)
         .then((res) => res.json())
         .then(({ txs }) => z.array(TxSchema).parse(txs)),
     placeholderData: () => {
diff --git a/lib/env.ts b/lib/env.ts
new file mode 100644
index 0000000..e46defb
--- /dev/null
+++ b/lib/env.ts
@@ -0,0 +1,9 @@
+import { z } from "zod";
+
+//NOTE - Webpack disallows reading process.env as a whole, so we need to parse individual variables
+export const env = {
+  NEXT_PUBLIC_API_URL: z.string().url().parse(process.env.NEXT_PUBLIC_API_URL),
+  NEXT_PUBLIC_MOCK_API: z
+    .optional(z.enum(["TRUE", "FALSE"]))
+    .parse(process.env.NEXT_PUBLIC_MOCK_API),
+};
diff --git a/package-lock.json b/package-lock.json
index b2eb4e2..cdca5cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -70,6 +70,7 @@
         "@types/react-dom": "^18",
         "eslint": "^8",
         "eslint-config-next": "14.2.7",
+        "msw": "^2.4.9",
         "postcss": "^8",
         "prettier": "3.3.3",
         "tailwindcss": "^3.4.1",
@@ -123,6 +124,37 @@
       "resolved": "https://registry.npmjs.org/@braintree/sanitize-url/-/sanitize-url-7.1.0.tgz",
       "integrity": "sha512-o+UlMLt49RvtCASlOMW0AkHnabN9wR9rwCCherxO0yG4Npy34GkvrAqdXQvrhNs+jh+gkK8gB8Lf05qL/O7KWg=="
     },
+    "node_modules/@bundled-es-modules/cookie": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@bundled-es-modules/cookie/-/cookie-2.0.0.tgz",
+      "integrity": "sha512-Or6YHg/kamKHpxULAdSqhGqnWFneIXu1NKvvfBBzKGwpVsYuFIQ5aBPHDnnoR3ghW1nvSkALd+EF9iMtY7Vjxw==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "cookie": "^0.5.0"
+      }
+    },
+    "node_modules/@bundled-es-modules/statuses": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@bundled-es-modules/statuses/-/statuses-1.0.1.tgz",
+      "integrity": "sha512-yn7BklA5acgcBr+7w064fGV+SGIFySjCKpqjcWgBAIfrAkY+4GQTJJHQMeT3V/sgz23VTEVV8TtOmkvJAhFVfg==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "statuses": "^2.0.1"
+      }
+    },
+    "node_modules/@bundled-es-modules/tough-cookie": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/@bundled-es-modules/tough-cookie/-/tough-cookie-0.1.6.tgz",
+      "integrity": "sha512-dvMHbL464C0zI+Yqxbz6kZ5TOEp7GLW+pry/RWndAR8MJQAXZ2rPmIs8tziTZjeIyhSNZgZbCePtfSbdWqStJw==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "@types/tough-cookie": "^4.0.5",
+        "tough-cookie": "^4.1.4"
+      }
+    },
     "node_modules/@chevrotain/cst-dts-gen": {
       "version": "11.0.3",
       "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.0.3.tgz",
@@ -310,6 +342,127 @@
         "mlly": "^1.7.1"
       }
     },
+    "node_modules/@inquirer/confirm": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/@inquirer/confirm/-/confirm-3.2.0.tgz",
+      "integrity": "sha512-oOIwPs0Dvq5220Z8lGL/6LHRTEr9TgLHmiI99Rj1PJ1p1czTys+olrgBqZk4E2qC0YTzeHprxSQmoHioVdJ7Lw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@inquirer/core": "^9.1.0",
+        "@inquirer/type": "^1.5.3"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@inquirer/core": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/@inquirer/core/-/core-9.2.1.tgz",
+      "integrity": "sha512-F2VBt7W/mwqEU4bL0RnHNZmC/OxzNx9cOYxHqnXX3MP6ruYvZUZAW9imgN9+h/uBT/oP8Gh888J2OZSbjSeWcg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@inquirer/figures": "^1.0.6",
+        "@inquirer/type": "^2.0.0",
+        "@types/mute-stream": "^0.0.4",
+        "@types/node": "^22.5.5",
+        "@types/wrap-ansi": "^3.0.0",
+        "ansi-escapes": "^4.3.2",
+        "cli-width": "^4.1.0",
+        "mute-stream": "^1.0.0",
+        "signal-exit": "^4.1.0",
+        "strip-ansi": "^6.0.1",
+        "wrap-ansi": "^6.2.0",
+        "yoctocolors-cjs": "^2.1.2"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@inquirer/core/node_modules/@inquirer/type": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@inquirer/type/-/type-2.0.0.tgz",
+      "integrity": "sha512-XvJRx+2KR3YXyYtPUUy+qd9i7p+GO9Ko6VIIpWlBrpWwXDv8WLFeHTxz35CfQFUiBMLXlGHhGzys7lqit9gWag==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mute-stream": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@inquirer/core/node_modules/@types/node": {
+      "version": "22.7.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
+      "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
+    "node_modules/@inquirer/core/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@inquirer/core/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@inquirer/core/node_modules/wrap-ansi": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@inquirer/figures": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@inquirer/figures/-/figures-1.0.7.tgz",
+      "integrity": "sha512-m+Trk77mp54Zma6xLkLuY+mvanPxlE4A7yNKs2HBiyZ4UkVs28Mv5c/pgWrHeInx+USHeX/WEPzjrWrcJiQgjw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@inquirer/type": {
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/@inquirer/type/-/type-1.5.5.tgz",
+      "integrity": "sha512-MzICLu4yS7V8AA61sANROZ9vT1H3ooca5dSmI1FjZkzq7o/koMsRfQSzRtFo+F3Ao4Sf1C0bpLKejpKB/+j6MA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mute-stream": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@isaacs/cliui": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
@@ -402,6 +555,24 @@
         "langium": "3.0.0"
       }
     },
+    "node_modules/@mswjs/interceptors": {
+      "version": "0.35.9",
+      "resolved": "https://registry.npmjs.org/@mswjs/interceptors/-/interceptors-0.35.9.tgz",
+      "integrity": "sha512-SSnyl/4ni/2ViHKkiZb8eajA/eN1DNFaHjhGiLUdZvDz6PKF4COSf/17xqSz64nOo2Ia29SA6B2KNCsyCbVmaQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@open-draft/deferred-promise": "^2.2.0",
+        "@open-draft/logger": "^0.3.0",
+        "@open-draft/until": "^2.0.0",
+        "is-node-process": "^1.2.0",
+        "outvariant": "^1.4.3",
+        "strict-event-emitter": "^0.5.1"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@next/env": {
       "version": "14.2.7",
       "resolved": "https://registry.npmjs.org/@next/env/-/env-14.2.7.tgz",
@@ -592,6 +763,31 @@
         "node": ">=12.4.0"
       }
     },
+    "node_modules/@open-draft/deferred-promise": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@open-draft/deferred-promise/-/deferred-promise-2.2.0.tgz",
+      "integrity": "sha512-CecwLWx3rhxVQF6V4bAgPS5t+So2sTbPgAzafKkVizyi7tlwpcFpdFqq+wqF2OwNBmqFuu6tOyouTuxgpMfzmA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@open-draft/logger": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@open-draft/logger/-/logger-0.3.0.tgz",
+      "integrity": "sha512-X2g45fzhxH238HKO4xbSr7+wBS8Fvw6ixhTDuvLd5mqh6bJJCFAPwU9mPDxbcrRtfxv4u5IHCEH77BmxvXmmxQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "is-node-process": "^1.2.0",
+        "outvariant": "^1.4.0"
+      }
+    },
+    "node_modules/@open-draft/until": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/@open-draft/until/-/until-2.1.0.tgz",
+      "integrity": "sha512-U69T3ItWHvLwGg5eJ0n3I62nWuE6ilHlmz7zM0npLBRvPRd7e6NYmg54vvRtP5mZG7kZqZCFVdsTWo7BPtBujg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@pkgjs/parseargs": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
@@ -2039,6 +2235,13 @@
         "url": "https://github.com/sponsors/tannerlinsley"
       }
     },
+    "node_modules/@types/cookie": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.6.0.tgz",
+      "integrity": "sha512-4Kh9a6B2bQciAhf7FSuMRRkUWecJgJu9nPnx3yzpsfXX/c50REIqpHY4C82bXP90qrLtXtkDxTZosYO3UpOwlA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/d3-array": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/@types/d3-array/-/d3-array-3.2.1.tgz",
@@ -2099,6 +2302,16 @@
       "integrity": "sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==",
       "dev": true
     },
+    "node_modules/@types/mute-stream": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/@types/mute-stream/-/mute-stream-0.0.4.tgz",
+      "integrity": "sha512-CPM9nzrCPPJHQNA9keH9CVkVI+WR5kMa+7XEs5jcGQ0VoAGnLv242w8lIVgwAEfmE4oufJRaTc9PNLQl0ioAow==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/node": {
       "version": "20.16.4",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.4.tgz",
@@ -2133,6 +2346,27 @@
         "@types/react": "*"
       }
     },
+    "node_modules/@types/statuses": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@types/statuses/-/statuses-2.0.5.tgz",
+      "integrity": "sha512-jmIUGWrAiwu3dZpxntxieC+1n/5c3mjrImkmOSQ2NC5uP6cYO4aAZDdSmRcI5C1oiTmqlZGHC+/NmJrKogbP5A==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@types/tough-cookie": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-4.0.5.tgz",
+      "integrity": "sha512-/Ad8+nIOV7Rl++6f1BdKxFSMgmoqEoYbHRpPcx3JEfv8VRsQe9Z4mCXeJBzxs7mbHY/XOZZuXlRNfhpVPbs6ZA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@types/wrap-ansi": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/wrap-ansi/-/wrap-ansi-3.0.0.tgz",
+      "integrity": "sha512-ltIpx+kM7g/MLRZfkbL7EsCEjfzCcScLpkg37eXEtx5kmrAKBkTJwd1GIAjDSL8wTpM6Hzn5YO4pSb91BEwu1g==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@typescript-eslint/parser": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-7.2.0.tgz",
@@ -2423,6 +2657,35 @@
         "url": "https://github.com/sponsors/epoberezkin"
       }
     },
+    "node_modules/ansi-escapes": {
+      "version": "4.3.2",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.3.2.tgz",
+      "integrity": "sha512-gKXj5ALrKWQLsYG9jlTRmR/xKluxHV+Z9QEwNIgCfM1/uwPMCuzVVnh5mwTd+OuBZcwSIMbqssNWRm1lE51QaQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "type-fest": "^0.21.3"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/ansi-escapes/node_modules/type-fest": {
+      "version": "0.21.3",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.21.3.tgz",
+      "integrity": "sha512-t0rzBq87m3fVcduHDUFhKmyyX+9eo6WQjZvf51Ea/M0Q7+T374Jp1aUiyUl0GKxp8M/OETVHSDvmkyPgvX+X2w==",
+      "dev": true,
+      "license": "(MIT OR CC0-1.0)",
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -2887,11 +3150,76 @@
         "node": ">=6"
       }
     },
+    "node_modules/cli-width": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-4.1.0.tgz",
+      "integrity": "sha512-ouuZd4/dm2Sw5Gmqy6bGyNNNe1qt9RpmxveLSO7KcgsTnU7RXfsw+/bukWGo1abgBiMAic068rclZsO4IWmmxQ==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/client-only": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/client-only/-/client-only-0.0.1.tgz",
       "integrity": "sha512-IV3Ou0jSMzZrd3pZ48nLkT9DA7Ag1pnPzaiQhpW7c3RbcqqzvzzVu+L8gfqMp/8IM2MQtSiqaCxrrcfu8I8rMA=="
     },
+    "node_modules/cliui": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
+      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.1",
+        "wrap-ansi": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/cliui/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/cliui/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/cliui/node_modules/wrap-ansi": {
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     "node_modules/zod": {
       "version": "3.23.8",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.23.8.tgz",
diff --git a/package.json b/package.json
index 228d18c..d9f0bd1 100644
--- a/package.json
+++ b/package.json
@@ -73,6 +73,7 @@
     "@types/react-dom": "^18",
     "eslint": "^8",
     "eslint-config-next": "14.2.7",
+    "msw": "^2.4.9",
     "postcss": "^8",
     "prettier": "3.3.3",
     "tailwindcss": "^3.4.1",
@@ -82,5 +83,10 @@
     "@typescript-eslint/typescript-estree": {
       "typescript": "<5.5.0"
     }
+  },
+  "msw": {
+    "workerDirectory": [
+      "public"
+    ]
   }
 }
diff --git a/playwright.config.ts b/playwright.config.ts
index f4e04ed..8b7085c 100644
--- a/playwright.config.ts
+++ b/playwright.config.ts
@@ -75,5 +75,6 @@ export default defineConfig({
     command: "npm run build && npm run start",
     url: "http://127.0.0.1:3000",
     reuseExistingServer: !process.env.CI,
+    env: { NEXT_PUBLIC_API_URL: "http://localhost:4000/api/v1" },
   },
 });
diff --git a/providers/index.tsx b/providers/index.tsx
index 57c15bc..4a20f2b 100644
--- a/providers/index.tsx
+++ b/providers/index.tsx
@@ -1,11 +1,14 @@
 import { TooltipProvider } from "@/components/ui/tooltip";
 import { PropsWithChildren } from "react";
+import MockApiProvider from "./mock-api";
 import ReactQueryProvider from "./react-query";
 
 export default function Providers({ children }: PropsWithChildren) {
   return (
-    <ReactQueryProvider>
-      <TooltipProvider>{children}</TooltipProvider>
-    </ReactQueryProvider>
+    <MockApiProvider>
+      <ReactQueryProvider>
+        <TooltipProvider>{children}</TooltipProvider>
+      </ReactQueryProvider>
+    </MockApiProvider>
   );
 }
diff --git a/providers/mock-api.tsx b/providers/mock-api.tsx
new file mode 100644
index 0000000..a8c466b
--- /dev/null
+++ b/providers/mock-api.tsx
@@ -0,0 +1,25 @@
+"use client";
+
+import { env } from "@/lib/env";
+import { mockWorkerService } from "@/tests/mocks/worker";
+import { PropsWithChildren, useEffect, useState } from "react";
+
+export default function MockApiProvider({ children }: PropsWithChildren) {
+  const [shouldRenderChildren, setShouldRenderChildren] = useState(false);
+
+  useEffect(() => {
+    if (env.NEXT_PUBLIC_MOCK_API === "TRUE") {
+      mockWorkerService.start().then(() => {
+        setShouldRenderChildren(true);
+      });
+    } else {
+      setShouldRenderChildren(true);
+    }
+
+    return () => {
+      mockWorkerService.stop();
+    };
+  }, []);
+
+  return shouldRenderChildren ? children : null;
+}
diff --git a/public/mockServiceWorker.js b/public/mockServiceWorker.js
new file mode 100644
index 0000000..a8262f0
--- /dev/null
+++ b/public/mockServiceWorker.js
@@ -0,0 +1,284 @@
+/* eslint-disable */
+/* tslint:disable */
+
+/**
+ * Mock Service Worker.
+ * @see https://github.com/mswjs/msw
+ * - Please do NOT modify this file.
+ * - Please do NOT serve this file on production.
+ */
+
+const PACKAGE_VERSION = '2.4.9'
+const INTEGRITY_CHECKSUM = '26357c79639bfa20d64c0efca2a87423'
+const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
+const activeClientIds = new Set()
+
+self.addEventListener('install', function () {
+  self.skipWaiting()
+})
+
+self.addEventListener('activate', function (event) {
+  event.waitUntil(self.clients.claim())
+})
+
+self.addEventListener('message', async function (event) {
+  const clientId = event.source.id
+
+  if (!clientId || !self.clients) {
+    return
+  }
+
+  const client = await self.clients.get(clientId)
+
+  if (!client) {
+    return
+  }
+
+  const allClients = await self.clients.matchAll({
+    type: 'window',
+  })
+
+  switch (event.data) {
+    case 'KEEPALIVE_REQUEST': {
+      sendToClient(client, {
+        type: 'KEEPALIVE_RESPONSE',
+      })
+      break
+    }
+
+    case 'INTEGRITY_CHECK_REQUEST': {
+      sendToClient(client, {
+        type: 'INTEGRITY_CHECK_RESPONSE',
+        payload: {
+          packageVersion: PACKAGE_VERSION,
+          checksum: INTEGRITY_CHECKSUM,
+        },
+      })
+      break
+    }
+
+    case 'MOCK_ACTIVATE': {
+      activeClientIds.add(clientId)
+
+      sendToClient(client, {
+        type: 'MOCKING_ENABLED',
+        payload: true,
+      })
+      break
+    }
+
+    case 'MOCK_DEACTIVATE': {
+      activeClientIds.delete(clientId)
+      break
+    }
+
+    case 'CLIENT_CLOSED': {
+      activeClientIds.delete(clientId)
+
+      const remainingClients = allClients.filter((client) => {
+        return client.id !== clientId
+      })
+
+      // Unregister itself when there are no more clients
+      if (remainingClients.length === 0) {
+        self.registration.unregister()
+      }
+
+      break
+    }
+  }
+})
+
+self.addEventListener('fetch', function (event) {
+  const { request } = event
+
+  // Bypass navigation requests.
+  if (request.mode === 'navigate') {
+    return
+  }
+
+  // Opening the DevTools triggers the "only-if-cached" request
+  // that cannot be handled by the worker. Bypass such requests.
+  if (request.cache === 'only-if-cached' && request.mode !== 'same-origin') {
+    return
+  }
+
+  // Bypass all requests when there are no active clients.
+  // Prevents the self-unregistered worked from handling requests
+  // after it's been deleted (still remains active until the next reload).
+  if (activeClientIds.size === 0) {
+    return
+  }
+
+  // Generate unique request ID.
+  const requestId = crypto.randomUUID()
+  event.respondWith(handleRequest(event, requestId))
+})
+
+async function handleRequest(event, requestId) {
+  const client = await resolveMainClient(event)
+  const response = await getResponse(event, client, requestId)
+
+  // Send back the response clone for the "response:*" life-cycle events.
+  // Ensure MSW is active and ready to handle the message, otherwise
+  // this message will pend indefinitely.
+  if (client && activeClientIds.has(client.id)) {
+    ;(async function () {
+      const responseClone = response.clone()
+
+      sendToClient(
+        client,
+        {
+          type: 'RESPONSE',
+          payload: {
+            requestId,
+            isMockedResponse: IS_MOCKED_RESPONSE in response,
+            type: responseClone.type,
+            status: responseClone.status,
+            statusText: responseClone.statusText,
+            body: responseClone.body,
+            headers: Object.fromEntries(responseClone.headers.entries()),
+          },
+        },
+        [responseClone.body],
+      )
+    })()
+  }
+
+  return response
+}
+
+// Resolve the main client for the given event.
+// Client that issues a request doesn't necessarily equal the client
+// that registered the worker. It's with the latter the worker should
+// communicate with during the response resolving phase.
+async function resolveMainClient(event) {
+  const client = await self.clients.get(event.clientId)
+
+  if (client?.frameType === 'top-level') {
+    return client
+  }
+
+  const allClients = await self.clients.matchAll({
+    type: 'window',
+  })
+
+  return allClients
+    .filter((client) => {
+      // Get only those clients that are currently visible.
+      return client.visibilityState === 'visible'
+    })
+    .find((client) => {
+      // Find the client ID that's recorded in the
+      // set of clients that have registered the worker.
+      return activeClientIds.has(client.id)
+    })
+}
+
+async function getResponse(event, client, requestId) {
+  const { request } = event
+
+  // Clone the request because it might've been already used
+  // (i.e. its body has been read and sent to the client).
+  const requestClone = request.clone()
+
+  function passthrough() {
+    const headers = Object.fromEntries(requestClone.headers.entries())
+
+    // Remove internal MSW request header so the passthrough request
+    // complies with any potential CORS preflight checks on the server.
+    // Some servers forbid unknown request headers.
+    delete headers['x-msw-intention']
+
+    return fetch(requestClone, { headers })
+  }
+
+  // Bypass mocking when the client is not active.
+  if (!client) {
+    return passthrough()
+  }
+
+  // Bypass initial page load requests (i.e. static assets).
+  // The absence of the immediate/parent client in the map of the active clients
+  // means that MSW hasn't dispatched the "MOCK_ACTIVATE" event yet
+  // and is not ready to handle requests.
+  if (!activeClientIds.has(client.id)) {
+    return passthrough()
+  }
+
+  // Notify the client that a request has been intercepted.
+  const requestBuffer = await request.arrayBuffer()
+  const clientMessage = await sendToClient(
+    client,
+    {
+      type: 'REQUEST',
+      payload: {
+        id: requestId,
+        url: request.url,
+        mode: request.mode,
+        method: request.method,
+        headers: Object.fromEntries(request.headers.entries()),
+        cache: request.cache,
+        credentials: request.credentials,
+        destination: request.destination,
+        integrity: request.integrity,
+        redirect: request.redirect,
+        referrer: request.referrer,
+        referrerPolicy: request.referrerPolicy,
+        body: requestBuffer,
+        keepalive: request.keepalive,
+      },
+    },
+    [requestBuffer],
+  )
+
+  switch (clientMessage.type) {
+    case 'MOCK_RESPONSE': {
+      return respondWithMock(clientMessage.data)
+    }
+
+    case 'PASSTHROUGH': {
+      return passthrough()
+    }
+  }
+
+  return passthrough()
+}
+
+function sendToClient(client, message, transferrables = []) {
+  return new Promise((resolve, reject) => {
+    const channel = new MessageChannel()
+
+    channel.port1.onmessage = (event) => {
+      if (event.data && event.data.error) {
+        return reject(event.data.error)
+      }
+
+      resolve(event.data)
+    }
+
+    client.postMessage(
+      message,
+      [channel.port2].concat(transferrables.filter(Boolean)),
+    )
+  })
+}
+
+async function respondWithMock(response) {
+  // Setting response status code to 0 is a no-op.
+  // However, when responding with a "Response.error()", the produced Response
+  // instance will have status code set to 0. Since it's not possible to create
+  // a Response instance with status code 0, handle that use-case separately.
+  if (response.status === 0) {
+    return Response.error()
+  }
+
+  const mockedResponse = new Response(response.body, response)
+
+  Reflect.defineProperty(mockedResponse, IS_MOCKED_RESPONSE, {
+    value: true,
+    enumerable: true,
+  })
+
+  return mockedResponse
+}
diff --git a/tests/e2e/happy-paths.test.ts b/tests/e2e/happy-paths.test.ts
index 3ed7d9b..c596764 100644
--- a/tests/e2e/happy-paths.test.ts
+++ b/tests/e2e/happy-paths.test.ts
@@ -1,5 +1,5 @@
 import { expect, test } from "@playwright/test";
-import txs from "../../public/txs.json";
+import txs from "../mocks/data/txs.json";
 
 test("navigates to a correctly rendered tx detail", async ({ page }) => {
   //Mock API
diff --git a/public/txs.json b/tests/mocks/data/txs.json
similarity index 100%
rename from public/txs.json
rename to tests/mocks/data/txs.json
diff --git a/tests/mocks/handlers.ts b/tests/mocks/handlers.ts
new file mode 100644
index 0000000..80136b0
--- /dev/null
+++ b/tests/mocks/handlers.ts
@@ -0,0 +1,7 @@
+import { env } from "@/lib/env";
+import { http, HttpResponse } from "msw";
+import txsJson from "./data/txs.json";
+
+export const mockHandlers = [
+  http.get(`${env.NEXT_PUBLIC_API_URL}/txs`, () => HttpResponse.json(txsJson)),
+];
diff --git a/tests/mocks/worker.ts b/tests/mocks/worker.ts
new file mode 100644
index 0000000..f0a00f7
--- /dev/null
+++ b/tests/mocks/worker.ts
@@ -0,0 +1,25 @@
+import type { SetupWorker } from "msw/browser";
+import { mockHandlers } from "./handlers";
+
+let mockWorker: SetupWorker | undefined = undefined;
+
+//NOTE - Will never return undefined if it's called from a browser
+async function getMockWorker() {
+  if (!mockWorker && typeof window !== "undefined") {
+    const { setupWorker } = await import("msw/browser");
+    mockWorker = setupWorker(...mockHandlers);
+  }
+
+  return mockWorker;
+}
+
+export const mockWorkerService = {
+  start: () =>
+    getMockWorker().then((mockWorker) => {
+      mockWorker?.start();
+    }),
+  stop: () =>
+    getMockWorker().then((mockWorker) => {
+      mockWorker?.stop();
+    }),
+};