diff --git a/api/package.json b/api/package.json
index 7c88597be..fe84e164a 100644
--- a/api/package.json
+++ b/api/package.json
@@ -36,6 +36,7 @@
 		"@sentry/tracing": "^7.55.2",
 		"got": "^13.0.0",
 		"ioredis": "^5.3.2",
+		"ioredis-mock": "^8.7.0",
 		"koa": "^2.14.2",
 		"koa-body": "^6.0.1",
 		"koa-static": "^5.0.0",
@@ -46,6 +47,7 @@
 		"swagger-ui-dist": "^4.15.5"
 	},
 	"devDependencies": {
+		"@types/ioredis-mock": "^8.2.2",
 		"@types/koa": "^2.13.6",
 		"@types/koa-static": "^4.0.2",
 		"@types/koa__cors": "^4.0.0",
diff --git a/api/source/index.ts b/api/source/index.ts
index 05cd9a96d..50a9bc390 100644
--- a/api/source/index.ts
+++ b/api/source/index.ts
@@ -9,6 +9,7 @@ import { catchErrors } from './errors.js'
 import openapi from './openapi.json' assert { type: 'json' }
 import { plausibleMiddleware } from './plausible.js'
 import { rateLimiterMiddleware } from './rate-limiter.js'
+import { redisCacheMiddleware } from './redis-cache.js'
 import { docRoutes } from './route/doc.js'
 import { openapiRoutes } from './route/openapi.js'
 import Sentry, { requestHandler, tracingMiddleWare } from './sentry.js'
@@ -43,7 +44,13 @@ router.use('/api/v1', docRoutes(), openapiRoutes(openapi))
 
 const apiRoutes = publicodesAPI(new Engine(rules))
 
-router.use('/api/v1', plausibleMiddleware, rateLimiterMiddleware, apiRoutes)
+router.use(
+	'/api/v1',
+	rateLimiterMiddleware,
+	redisCacheMiddleware(),
+	plausibleMiddleware,
+	apiRoutes
+)
 
 app.use(router.routes())
 app.use(router.allowedMethods())
diff --git a/api/source/redis-cache.ts b/api/source/redis-cache.ts
new file mode 100644
index 000000000..474e2906b
--- /dev/null
+++ b/api/source/redis-cache.ts
@@ -0,0 +1,50 @@
+import Router from '@koa/router'
+import IORedis from 'ioredis'
+import IORedisMock from 'ioredis-mock'
+import { koaBody } from 'koa-body'
+
+const Redis = IORedis.default
+const RedisMock = IORedisMock.default
+
+// cache expires in 2 hours
+const CACHE_EXPIRE = 2 * 60 * 60
+
+const redis =
+	process.env.NODE_ENV === 'production' && process.env.SCALINGO_REDIS_URL
+		? new Redis(process.env.SCALINGO_REDIS_URL, {
+				enableOfflineQueue: false,
+		  })
+		: new RedisMock()
+
+export const redisCacheMiddleware = () => {
+	const router = new Router()
+
+	router.post('/evaluate', koaBody(), async (ctx, next) => {
+		if (!redis || !ctx.request.body) {
+			await next()
+
+			return
+		}
+
+		const cacheKey = JSON.stringify(ctx.request.body)
+		const cachedResponse = await redis.get(cacheKey)
+		if (cachedResponse) {
+			ctx.body = JSON.parse(cachedResponse) as unknown
+
+			return
+		}
+
+		await next()
+
+		if (ctx.status === 200) {
+			await redis.set(
+				cacheKey,
+				JSON.stringify({ responseCachedAt: Date.now(), ...ctx.body }),
+				'EX',
+				CACHE_EXPIRE
+			)
+		}
+	})
+
+	return router.routes()
+}
diff --git a/yarn.lock b/yarn.lock
index 9cbc4dcde..6213e1ad9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3579,7 +3579,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@ioredis/commands@npm:^1.1.1":
+"@ioredis/as-callback@npm:^3.0.0":
+  version: 3.0.0
+  resolution: "@ioredis/as-callback@npm:3.0.0"
+  checksum: 2835e39631497fe4f8b07d95576abea165c9f7efef81e9e55c733588051ff4edcb31eeb59f36127923dae0cb1a8e21b4e27ee3ab79a065a0baeecf861c3bc0b1
+  languageName: node
+  linkType: hard
+
+"@ioredis/commands@npm:^1.1.1, @ioredis/commands@npm:^1.2.0":
   version: 1.2.0
   resolution: "@ioredis/commands@npm:1.2.0"
   checksum: 9b20225ba36ef3e5caf69b3c0720597c3016cc9b1e157f519ea388f621dd9037177f84cfe7e25c4c32dad7dd90c70ff9123cd411f747e053cf292193c9c461e2
@@ -8863,7 +8870,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/formidable@npm:^2.0.4, @types/formidable@npm:^2.0.5":
+"@types/formidable@npm:^2.0.4":
+  version: 2.0.6
+  resolution: "@types/formidable@npm:2.0.6"
+  dependencies:
+    "@types/node": "*"
+  checksum: d6be0ac12bf8dd2e4f8a022271ee6e501c7f6d7dd58d71c68497ca7da84bee1538d1a2a64a90b56dad557ddb291d48c5731206269e9ab53ed91264e68a4d1476
+  languageName: node
+  linkType: hard
+
+"@types/formidable@npm:^2.0.5":
   version: 2.0.5
   resolution: "@types/formidable@npm:2.0.5"
   dependencies:
@@ -8970,6 +8986,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/ioredis-mock@npm:^8.2.2":
+  version: 8.2.2
+  resolution: "@types/ioredis-mock@npm:8.2.2"
+  dependencies:
+    ioredis: ">=5"
+  checksum: caf0fd904d84ec6da31cde540cd04a0619e20ea42f88f2b11758c7afd24a9b4213661589c74efb03e109ba24cbd90794e0ef34294c7e5f9fe0c033536509a83e
+  languageName: node
+  linkType: hard
+
 "@types/istanbul-lib-coverage@npm:*, @types/istanbul-lib-coverage@npm:^2.0.0, @types/istanbul-lib-coverage@npm:^2.0.1":
   version: 2.0.4
   resolution: "@types/istanbul-lib-coverage@npm:2.0.4"
@@ -10277,6 +10302,7 @@ __metadata:
     "@publicodes/api": ^1.0.0-beta.70
     "@sentry/node": ^7.55.2
     "@sentry/tracing": ^7.55.2
+    "@types/ioredis-mock": ^8.2.2
     "@types/koa": ^2.13.6
     "@types/koa-static": ^4.0.2
     "@types/koa__cors": ^4.0.0
@@ -10286,6 +10312,7 @@ __metadata:
     chai-http: ^4.4.0
     got: ^13.0.0
     ioredis: ^5.3.2
+    ioredis-mock: ^8.7.0
     koa: ^2.14.2
     koa-body: ^6.0.1
     koa-static: ^5.0.0
@@ -15278,6 +15305,26 @@ __metadata:
   languageName: node
   linkType: hard
 
+"fengari-interop@npm:^0.1.3":
+  version: 0.1.3
+  resolution: "fengari-interop@npm:0.1.3"
+  peerDependencies:
+    fengari: ^0.1.0
+  checksum: f483e0aedec3a0b49911ffd3207a55f73c861f95ef84fb7582deb45bc65afa2e7bf8f9fc3734563f6c106a438909f94059b5d08f5a7872ffcc3d45d260a3ee15
+  languageName: node
+  linkType: hard
+
+"fengari@npm:^0.1.4":
+  version: 0.1.4
+  resolution: "fengari@npm:0.1.4"
+  dependencies:
+    readline-sync: ^1.4.9
+    sprintf-js: ^1.1.1
+    tmp: ^0.0.33
+  checksum: bd6b04f9738f9cbb58e3c80684a72bf6f7e74c902d26e4e812b1cfbd69c06da5ffb2a8a67a62ecd75603fc565b6b183c1b72be60f2e60c18aa487aad65b62196
+  languageName: node
+  linkType: hard
+
 "fetch-blob@npm:^3.1.2, fetch-blob@npm:^3.1.4":
   version: 3.2.0
   resolution: "fetch-blob@npm:3.2.0"
@@ -17446,7 +17493,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"ioredis@npm:^5.3.2":
+"ioredis-mock@npm:^8.7.0":
+  version: 8.7.0
+  resolution: "ioredis-mock@npm:8.7.0"
+  dependencies:
+    "@ioredis/as-callback": ^3.0.0
+    "@ioredis/commands": ^1.2.0
+    fengari: ^0.1.4
+    fengari-interop: ^0.1.3
+    semver: ^7.3.8
+  peerDependencies:
+    "@types/ioredis-mock": ^8
+    ioredis: ^5
+  checksum: 46a4ee40b899e950569cdfa3f009b797fc5c5acbdc6b1784f8cdeb54ba781ed288b61c4c86c88760a02ea6a481e655660df0507096f93c66c2e8285f029ff8fd
+  languageName: node
+  linkType: hard
+
+"ioredis@npm:>=5, ioredis@npm:^5.3.2":
   version: 5.3.2
   resolution: "ioredis@npm:5.3.2"
   dependencies:
@@ -22576,7 +22639,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"qs@npm:^6.11.2":
+"qs@npm:^6.11.2, qs@npm:^6.4.0":
   version: 6.11.2
   resolution: "qs@npm:6.11.2"
   dependencies:
@@ -22585,15 +22648,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"qs@npm:^6.4.0":
-  version: 6.11.1
-  resolution: "qs@npm:6.11.1"
-  dependencies:
-    side-channel: ^1.0.4
-  checksum: 82ee78ef12a16f3372fae5b64f76f8aedecb000feea882bbff1af146c147f6eb66b08f9c3f34d7e076f28563586956318b9b2ca41141846cdd6d5ad6f241d52f
-  languageName: node
-  linkType: hard
-
 "qs@npm:~6.5.2":
   version: 6.5.3
   resolution: "qs@npm:6.5.3"
@@ -23360,6 +23414,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"readline-sync@npm:^1.4.9":
+  version: 1.4.10
+  resolution: "readline-sync@npm:1.4.10"
+  checksum: 4dbd8925af028dc4cb1bb813f51ca3479035199aa5224886b560eec8e768ab27d7ebf11d69a67ed93d5a130b7c994f0bdb77796326e563cf928bbfd560e3747e
+  languageName: node
+  linkType: hard
+
 "real-require@npm:^0.2.0":
   version: 0.2.0
   resolution: "real-require@npm:0.2.0"