diff --git a/package-lock.json b/package-lock.json
index 8200b00..d5c63bb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,6 +30,7 @@
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         "globals": "^17.4.0",
         "jsdom": "^25.0.1",
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@@ -2474,6 +2475,94 @@
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+      "resolved": "https://registry.npmjs.org/@inquirer/type/-/type-3.0.10.tgz",
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@@ -2545,6 +2634,24 @@
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+      "resolved": "https://registry.npmjs.org/@mswjs/interceptors/-/interceptors-0.41.3.tgz",
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+        "outvariant": "^1.4.3",
+        "strict-event-emitter": "^0.5.1"
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@@ -2569,6 +2676,31 @@
         "url": "https://paulmillr.com/funding/"
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+      "resolved": "https://registry.npmjs.org/@open-draft/deferred-promise/-/deferred-promise-2.2.0.tgz",
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+      "devOptional": true,
+      "license": "MIT"
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+    "node_modules/@open-draft/logger": {
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+      "resolved": "https://registry.npmjs.org/@open-draft/logger/-/logger-0.3.0.tgz",
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+      "license": "MIT",
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+      "resolved": "https://registry.npmjs.org/@open-draft/until/-/until-2.1.0.tgz",
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+      "license": "MIT"
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@@ -3292,6 +3424,70 @@
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       }
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+    "node_modules/@tailwindcss/oxide-wasm32-wasi/node_modules/@emnapi/core": {
+      "version": "1.8.1",
+      "dev": true,
+      "inBundle": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
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+        "tslib": "^2.4.0"
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+    "node_modules/@tailwindcss/oxide-wasm32-wasi/node_modules/@emnapi/runtime": {
+      "version": "1.8.1",
+      "dev": true,
+      "inBundle": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      }
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+    "node_modules/@tailwindcss/oxide-wasm32-wasi/node_modules/@emnapi/wasi-threads": {
+      "version": "1.1.0",
+      "dev": true,
+      "inBundle": true,
+      "license": "MIT",
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+      "dependencies": {
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+    "node_modules/@tailwindcss/oxide-wasm32-wasi/node_modules/@napi-rs/wasm-runtime": {
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+      "dev": true,
+      "inBundle": true,
+      "license": "MIT",
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+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
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+    "node_modules/@tailwindcss/oxide-wasm32-wasi/node_modules/@tybys/wasm-util": {
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+      "dev": true,
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+      "dev": true,
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+      "license": "0BSD",
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@@ -3636,6 +3832,13 @@
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       "license": "MIT"
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-      "dev": true,
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@@ -4145,7 +4347,7 @@
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-      "dev": true,
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@@ -4669,6 +4871,49 @@
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+      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-4.1.0.tgz",
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+      "devOptional": true,
+      "license": "ISC",
+      "engines": {
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+      }
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+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
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+      "license": "MIT",
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+        "string-width": "^4.1.0",
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-      "dev": true,
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@@ -5194,6 +5439,13 @@
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@@ -5930,6 +6182,16 @@
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+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
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+      "devOptional": true,
+      "license": "ISC",
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@@ -6121,6 +6383,16 @@
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+      "license": "MIT",
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@@ -6215,6 +6487,13 @@
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@@ -6535,6 +6814,16 @@
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+      "license": "MIT",
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@@ -6601,6 +6890,13 @@
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@@ -7467,6 +7763,110 @@
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+      "license": "MIT",
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+      "funding": {
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+      "peerDependencies": {
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+      "resolved": "https://registry.npmjs.org/tldts/-/tldts-7.0.27.tgz",
+      "integrity": "sha512-I4FZcVFcqCRuT0ph6dCDpPuO4Xgzvh+spkcTr1gK7peIvxWauoloVO0vuy1FQnijT63ss6AsHB6+OIM4aXHbPg==",
+      "devOptional": true,
+      "license": "MIT",
+      "dependencies": {
+        "tldts-core": "^7.0.27"
+      },
+      "bin": {
+        "tldts": "bin/cli.js"
+      }
+    },
+    "node_modules/msw/node_modules/tldts-core": {
+      "version": "7.0.27",
+      "resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-7.0.27.tgz",
+      "integrity": "sha512-YQ7uPjgWUibIK6DW5lrKujGwUKhLevU4hcGbP5O6TcIUb+oTjJYJVWPS4nZsIHrEEEG6myk/oqAJUEQmpZrHsg==",
+      "devOptional": true,
+      "license": "MIT"
+    },
+    "node_modules/msw/node_modules/tough-cookie": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.1.tgz",
+      "integrity": "sha512-LktZQb3IeoUWB9lqR5EWTHgW/VTITCXg4D21M+lvybRVdylLrRMnqaIONLVb5mav8vM19m44HIcGq4qASeu2Qw==",
+      "devOptional": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "tldts": "^7.0.5"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
+    "node_modules/msw/node_modules/type-fest": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-5.5.0.tgz",
+      "integrity": "sha512-PlBfpQwiUvGViBNX84Yxwjsdhd1TUlXr6zjX7eoirtCPIr08NAmxwa+fcYBTeRQxHo9YC9wwF3m9i700sHma8g==",
+      "devOptional": true,
+      "license": "(MIT OR CC0-1.0)",
+      "dependencies": {
+        "tagged-tag": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/mute-stream": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/mute-stream/-/mute-stream-2.0.0.tgz",
+      "integrity": "sha512-WWdIxpyjEn+FhQJQQv9aQAYlHoNVdzIzUySNV1gHUPDSdZJ3yZn7pAAbQcV7B56Mvu881q9FZV+0Vx2xC44VWA==",
+      "devOptional": true,
+      "license": "ISC",
+      "engines": {
+        "node": "^18.17.0 || >=20.5.0"
+      }
+    },
     "node_modules/nanoid": {
       "version": "3.3.11",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.11.tgz",
@@ -7584,6 +7984,13 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/outvariant": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/outvariant/-/outvariant-1.4.3.tgz",
+      "integrity": "sha512-+Sl2UErvtsoajRDKCE5/dBz4DIvHXQQnAxtQTF04OJxY0+DyZXSo5P5Bb7XYWOh81syohlYL24hbDwxedPUJCA==",
+      "devOptional": true,
+      "license": "MIT"
+    },
     "node_modules/own-keys": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/own-keys/-/own-keys-1.0.1.tgz",
@@ -7721,6 +8128,13 @@
         "node": "20 || >=22"
       }
     },
+    "node_modules/path-to-regexp": {
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-6.3.0.tgz",
+      "integrity": "sha512-Yhpw4T9C6hPpgPeA28us07OJeqZ5EzQTkbfwuhsUg0c237RomFoETJgmp2sa3F/41gfLE6G5cqcYwznmeEeOlQ==",
+      "devOptional": true,
+      "license": "MIT"
+    },
     "node_modules/pathe": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/pathe/-/pathe-2.0.3.tgz",
@@ -8134,6 +8548,16 @@
         "regjsparser": "bin/parser"
       }
     },
+    "node_modules/require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==",
+      "devOptional": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/require-from-string": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
@@ -8181,6 +8605,13 @@
         "node": ">=4"
       }
     },
+    "node_modules/rettime": {
+      "version": "0.10.1",
+      "resolved": "https://registry.npmjs.org/rettime/-/rettime-0.10.1.tgz",
+      "integrity": "sha512-uyDrIlUEH37cinabq0AX4QbgV4HbFZ/gqoiunWQ1UqBtRvTTytwhNYjE++pO/MjPTZL5KQCf2bEoJ/BJNVQ5Kw==",
+      "devOptional": true,
+      "license": "MIT"
+    },
     "node_modules/rollup": {
       "version": "4.59.0",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.59.0.tgz",
@@ -8529,7 +8960,7 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
       "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
-      "dev": true,
+      "devOptional": true,
       "license": "ISC",
       "engines": {
         "node": ">=14"
@@ -8637,6 +9068,16 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "devOptional": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/std-env": {
       "version": "3.10.0",
       "resolved": "https://registry.npmjs.org/std-env/-/std-env-3.10.0.tgz",
@@ -8658,6 +9099,28 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/strict-event-emitter": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/strict-event-emitter/-/strict-event-emitter-0.5.1.tgz",
+      "integrity": "sha512-vMgjE/GGEPEFnhFub6pa4FmJBRBVOLpIII2hvCZ8Kzb7K0hlHo7mQv6xYrBvCL2LtAIBwFUK8wvuJgTVSQ5MFQ==",
+      "devOptional": true,
+      "license": "MIT"
+    },
+    "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==",
+      "devOptional": 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/string.prototype.matchall": {
       "version": "4.0.12",
       "resolved": "https://registry.npmjs.org/string.prototype.matchall/-/string.prototype.matchall-4.0.12.tgz",
@@ -8760,6 +9223,19 @@
         "node": ">=4"
       }
     },
+    "node_modules/strip-ansi": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
+      "devOptional": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/strip-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-comments/-/strip-comments-2.0.1.tgz",
@@ -8849,6 +9325,19 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/tagged-tag": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/tagged-tag/-/tagged-tag-1.0.0.tgz",
+      "integrity": "sha512-yEFYrVhod+hdNyx7g5Bnkkb0G6si8HJurOoOEgC8B/O0uXLHlaey/65KRv6cuWBNhBgHKAROVpc7QyYqE5gFng==",
+      "devOptional": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/tailwindcss": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.2.1.tgz",
@@ -9152,7 +9641,7 @@
       "version": "5.9.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
+      "devOptional": true,
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
@@ -9279,6 +9768,16 @@
         "node": ">= 10.0.0"
       }
     },
+    "node_modules/until-async": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/until-async/-/until-async-3.0.2.tgz",
+      "integrity": "sha512-IiSk4HlzAMqTUseHHe3VhIGyuFmN90zMTpD3Z3y8jeQbzLIq500MVM7Jq2vUAnTKAFPJrqwkzr6PoTcPhGcOiw==",
+      "devOptional": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/kettanaito"
+      }
+    },
     "node_modules/upath": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/upath/-/upath-1.2.0.tgz",
@@ -10128,6 +10627,21 @@
         "workbox-core": "7.4.0"
       }
     },
+    "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==",
+      "devOptional": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/ws": {
       "version": "8.19.0",
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.19.0.tgz",
@@ -10167,6 +10681,16 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/y18n": {
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
+      "devOptional": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
@@ -10174,6 +10698,35 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/yargs": {
+      "version": "17.7.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
+      "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
+      "devOptional": true,
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^8.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.3",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^21.1.1"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/yargs-parser": {
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
+      "devOptional": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
@@ -10187,6 +10740,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/yoctocolors-cjs": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/yoctocolors-cjs/-/yoctocolors-cjs-2.1.3.tgz",
+      "integrity": "sha512-U/PBtDf35ff0D8X8D0jfdzHYEPFxAI7jJlxZXwCSez5M3190m+QobIfh+sWDWSHMCWWJN2AWamkegn6vr6YBTw==",
+      "devOptional": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/zod": {
       "version": "4.3.6",
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
diff --git a/package.json b/package.json
index 67e3891..724f6c9 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "eslint-plugin-react-refresh": "^0.5.2",
     "globals": "^17.4.0",
     "jsdom": "^25.0.1",
+    "msw": "^2.12.14",
     "tailwindcss": "^4.0.0",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.56.1",
diff --git a/src/hooks/__tests__/useApi.test.tsx b/src/hooks/__tests__/useApi.test.tsx
new file mode 100644
index 0000000..6644d12
--- /dev/null
+++ b/src/hooks/__tests__/useApi.test.tsx
@@ -0,0 +1,45 @@
+import { renderHook, waitFor } from '@testing-library/react'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { usePurchases } from '../useApi'
+import { http, HttpResponse } from 'msw'
+import { server } from '../../test/mocks/server'
+
+function createWrapper() {
+  const queryClient = new QueryClient({
+    defaultOptions: { queries: { retry: false } },
+  })
+  return function Wrapper({ children }: { children: React.ReactNode }) {
+    return (
+      <QueryClientProvider client={queryClient}>
+        {children}
+      </QueryClientProvider>
+    )
+  }
+}
+
+describe('useApi hooks', () => {
+  describe('usePurchases', () => {
+    it('fetches and returns purchases', async () => {
+      const { result } = renderHook(() => usePurchases(), { wrapper: createWrapper() })
+
+      await waitFor(() => expect(result.current.isSuccess).toBe(true))
+
+      expect(result.current.data).toHaveLength(1)
+      expect(result.current.data![0]).toMatchObject({
+        id: 'pur_1',
+        storeName: 'Kroger',
+        total: 42.5,
+      })
+    })
+
+    it('returns an error when the endpoint fails', async () => {
+      server.use(
+        http.get('/api/v1/purchases', () => HttpResponse.error()),
+      )
+
+      const { result } = renderHook(() => usePurchases(), { wrapper: createWrapper() })
+
+      await waitFor(() => expect(result.current.isError).toBe(true))
+    })
+  })
+})
diff --git a/src/test/mocks/handlers.ts b/src/test/mocks/handlers.ts
new file mode 100644
index 0000000..ddfa9d5
--- /dev/null
+++ b/src/test/mocks/handlers.ts
@@ -0,0 +1,65 @@
+import { http, HttpResponse } from 'msw'
+import type { Purchase, Product, Coupon, PriceAlert } from '../../types/api.ts'
+
+const mockPurchases: Purchase[] = [
+  {
+    id: 'pur_1',
+    storeId: 'store_1',
+    storeName: 'Kroger',
+    date: '2024-01-15',
+    total: 42.5,
+    items: [
+      { id: 'item_1', productId: 'prod_1', name: 'Milk', quantity: 1, price: 3.99, unitPrice: 3.99 },
+      { id: 'item_2', productId: 'prod_2', name: 'Bread', quantity: 2, price: 5.98, unitPrice: 2.99 },
+    ],
+  },
+]
+
+const mockProducts: Product[] = [
+  {
+    id: 'prod_1',
+    name: 'Whole Milk',
+    brand: 'Kroger',
+    category: 'Dairy',
+    prices: [{ storeId: 'store_1', storeName: 'Kroger', price: 3.99, lastUpdated: '2024-01-15' }],
+  },
+  {
+    id: 'prod_2',
+    name: 'Whole Wheat Bread',
+    brand: 'Nature\'s Own',
+    category: 'Bakery',
+    prices: [{ storeId: 'store_1', storeName: 'Kroger', price: 2.99, lastUpdated: '2024-01-15' }],
+  },
+]
+
+const mockCoupons: Coupon[] = [
+  {
+    id: 'coupon_1',
+    productId: 'prod_1',
+    storeName: 'Kroger',
+    description: '$1 off milk',
+    discount: '$1.00',
+    expiresAt: '2024-12-31',
+    code: 'MILK1',
+  },
+]
+
+const mockAlerts: PriceAlert[] = [
+  {
+    id: 'alert_1',
+    productId: 'prod_1',
+    productName: 'Whole Milk',
+    targetPrice: 2.99,
+    currentPrice: 3.99,
+    triggered: false,
+  },
+]
+
+export const handlers = [
+  http.get('/api/v1/health', () => HttpResponse.json({ status: 'ok' })),
+  http.get('/api/v1/purchases', () => HttpResponse.json(mockPurchases)),
+  http.get('/api/v1/products', () => HttpResponse.json(mockProducts)),
+  http.get('/api/v1/products/prod_1', () => HttpResponse.json(mockProducts[0])),
+  http.get('/api/v1/coupons', () => HttpResponse.json(mockCoupons)),
+  http.get('/api/v1/price-alerts', () => HttpResponse.json(mockAlerts)),
+]
diff --git a/src/test/mocks/server.ts b/src/test/mocks/server.ts
new file mode 100644
index 0000000..86f7d61
--- /dev/null
+++ b/src/test/mocks/server.ts
@@ -0,0 +1,4 @@
+import { setupServer } from 'msw/node'
+import { handlers } from './handlers'
+
+export const server = setupServer(...handlers)
diff --git a/src/test/setup.ts b/src/test/setup.ts
index d0618e8..c6d0755 100644
--- a/src/test/setup.ts
+++ b/src/test/setup.ts
@@ -1 +1,6 @@
 import '@testing-library/jest-dom/vitest'
+import { server } from './mocks/server'
+
+beforeAll(() => server.listen())
+afterEach(() => server.resetHandlers())
+afterAll(() => server.close())