diff --git a/.env.example b/.env.example
index 3c82c6c8..0dd18772 100644
--- a/.env.example
+++ b/.env.example
@@ -45,3 +45,7 @@ NOMINATIM_BASE_URL=https://nominatim.openstreetmap.org
 GEOCODING_USER_AGENT=PropChain-Backend/1.0 (geocoding)
 GEOCODING_TIMEOUT_MS=5000
 # GOOGLE_GEOCODING_API_KEY=
+
+# OpenTelemetry Tracing
+OTEL_ENABLED=true
+OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318/v1/traces
diff --git a/package-lock.json b/package-lock.json
index 48863885..083b704e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,9 +24,14 @@
         "@nestjs/schedule": "^6.1.3",
         "@nestjs/swagger": "^7.1.16",
         "@nestjs/websockets": "^10.4.22",
+        "@opentelemetry/api": "^1.9.1",
+        "@opentelemetry/exporter-trace-otlp-http": "^0.219.0",
+        "@opentelemetry/instrumentation-http": "^0.219.0",
+        "@opentelemetry/resources": "^2.8.0",
+        "@opentelemetry/sdk-trace-node": "^2.8.0",
+        "@opentelemetry/semantic-conventions": "^1.41.1",
         "@prisma/client": "^6.19.2",
         "@types/uuid": "^9.0.7",
-        "@willsoto/nestjs-prometheus": "^6.1.0",
         "archiver": "^7.0.1",
         "bcrypt": "^6.0.0",
         "bullmq": "^5.76.3",
@@ -49,7 +54,6 @@
         "pdf-poppler": "^0.2.3",
         "pdfkit": "^0.18.0",
         "pg": "^8.11.3",
-        "prom-client": "^15.1.3",
         "redis": "^5.12.1",
         "reflect-metadata": "^0.1.13",
         "rxjs": "^7.8.1",
@@ -4206,6 +4210,228 @@
         "node": ">=8.0.0"
       }
     },
+    "node_modules/@opentelemetry/api-logs": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/api-logs/-/api-logs-0.219.0.tgz",
+      "integrity": "sha512-FFx7YnaYJlIjqWW/AG/yAZ0L/NEY724PipXXXQLdtZPbLwBGbUMTGL1i/esI56TWfTUXxhLfpgrnWJCG8aUJyg==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      },
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
+    "node_modules/@opentelemetry/context-async-hooks": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/context-async-hooks/-/context-async-hooks-2.8.0.tgz",
+      "integrity": "sha512-/3FIraneMcng67SUJCxvyInk/oxzwsxyadufk0wwfOBLf5wqtAGX4MoQASwSbndBPeARzBryUM9Azr5kHIdWLw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.0.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/core": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/core/-/core-2.8.0.tgz",
+      "integrity": "sha512-hd1Lfh8p545nNz+jq1Ejfz+Mn1hyLuxYn1YzTfFNrxr8urEWMNQLPf1Th8kjOH+HxwawCrtgBp8JpBUR4ZSgww==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/semantic-conventions": "^1.29.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.0.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/exporter-trace-otlp-http": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/exporter-trace-otlp-http/-/exporter-trace-otlp-http-0.219.0.tgz",
+      "integrity": "sha512-9t6SvBXXBEjOBcIzgozvBbd3jWrv3Gt3ngGhl1fhdZ/zRc7oZDVOFEqbi2zlBpW9BXhgDMKv422J0DL/3iQWfw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/otlp-exporter-base": "0.219.0",
+        "@opentelemetry/otlp-transformer": "0.219.0",
+        "@opentelemetry/resources": "2.8.0",
+        "@opentelemetry/sdk-trace-base": "2.8.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      }
+    },
+    "node_modules/@opentelemetry/instrumentation": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/instrumentation/-/instrumentation-0.219.0.tgz",
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+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/api-logs": "0.219.0",
+        "import-in-the-middle": "^3.0.0",
+        "require-in-the-middle": "^8.0.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      }
+    },
+    "node_modules/@opentelemetry/instrumentation-http": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/instrumentation-http/-/instrumentation-http-0.219.0.tgz",
+      "integrity": "sha512-nNt1fqpyah/OKjNHdEOu8xLwISppRU2qJuF8aR+fCcftVwdFkPgtworBLA+TI1HU2iF508jcQBF2gerWczJAXg==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/instrumentation": "0.219.0",
+        "@opentelemetry/semantic-conventions": "^1.29.0",
+        "forwarded-parse": "2.1.2"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      }
+    },
+    "node_modules/@opentelemetry/otlp-exporter-base": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/otlp-exporter-base/-/otlp-exporter-base-0.219.0.tgz",
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+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/otlp-transformer": "0.219.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      }
+    },
+    "node_modules/@opentelemetry/otlp-transformer": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/otlp-transformer/-/otlp-transformer-0.219.0.tgz",
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+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/api-logs": "0.219.0",
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/resources": "2.8.0",
+        "@opentelemetry/sdk-logs": "0.219.0",
+        "@opentelemetry/sdk-metrics": "2.8.0",
+        "@opentelemetry/sdk-trace-base": "2.8.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": "^1.3.0"
+      }
+    },
+    "node_modules/@opentelemetry/resources": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/resources/-/resources-2.8.0.tgz",
+      "integrity": "sha512-qmXQ27ilDbUK/vGMqwL8D4/rhn76C+sherM4wTbjlfknR8Nvfc/hCxjRJPhkzZzUsPiNg16SA31NxMabwttRjg==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/semantic-conventions": "^1.29.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.3.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/sdk-logs": {
+      "version": "0.219.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/sdk-logs/-/sdk-logs-0.219.0.tgz",
+      "integrity": "sha512-s6lTKRakaPClvKoWHRChxnXjDMkM/TQ30ff78jN6EBGf7MI7VzANE5PU3f4z9qDUudWjvZjOLHG0rBnBKYvoXA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/api-logs": "0.219.0",
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/resources": "2.8.0",
+        "@opentelemetry/semantic-conventions": "^1.29.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.4.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/sdk-metrics": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/sdk-metrics/-/sdk-metrics-2.8.0.tgz",
+      "integrity": "sha512-UDBGaj6W0Rgy5rTTaoxs8gVGF/aGkAKyjurJv7se6wjRxJu7FoquTLT/vt54DZfo4crbprYfhX/SOK9+BPw1qg==",
+      "license": "Apache-2.0",
+      "dependencies": {
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+        "@opentelemetry/resources": "2.8.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.9.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/sdk-trace-base": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/sdk-trace-base/-/sdk-trace-base-2.8.0.tgz",
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+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/resources": "2.8.0",
+        "@opentelemetry/semantic-conventions": "^1.29.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.3.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/sdk-trace-node": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/sdk-trace-node/-/sdk-trace-node-2.8.0.tgz",
+      "integrity": "sha512-nZt9OGufioAc3AfoLTqA9bsAeaMJAictYDdI2VcNQ+PmT+3rfKjAZDZvgPfd8VPX0O5Bw1hdQF6kDK8VSpZiWg==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@opentelemetry/context-async-hooks": "2.8.0",
+        "@opentelemetry/core": "2.8.0",
+        "@opentelemetry/sdk-trace-base": "2.8.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.6.0"
+      },
+      "peerDependencies": {
+        "@opentelemetry/api": ">=1.0.0 <1.10.0"
+      }
+    },
+    "node_modules/@opentelemetry/semantic-conventions": {
+      "version": "1.41.1",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/semantic-conventions/-/semantic-conventions-1.41.1.tgz",
+      "integrity": "sha512-/UhIkaZgPutTFmQ7RnIJGgDXZmtEJ7Dvi86xNTFWcnRxVRNk/aotsqDJYeEvDP+FSMB2SdW+pQzNMcWP0rwuNA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/@paralleldrive/cuid2": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/@paralleldrive/cuid2/-/cuid2-2.3.1.tgz",
@@ -5494,16 +5720,6 @@
         "@xtuc/long": "4.2.2"
       }
     },
-    "node_modules/@willsoto/nestjs-prometheus": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/@willsoto/nestjs-prometheus/-/nestjs-prometheus-6.1.0.tgz",
-      "integrity": "sha512-lrCEnJBBSzUIYWGR+PsZw1YXs1B9jzxFEuNAa3RzTxuFAFdI+sW7Fp52il/U/dX2MWoHc32x06OS0nm56QwyzQ==",
-      "license": "Apache-2.0",
-      "peerDependencies": {
-        "@nestjs/common": "^7.0.0 || ^8.0.0 || ^9.0.0 || ^10.0.0 || ^11.0.0",
-        "prom-client": "^15.0.0"
-      }
-    },
     "node_modules/@xtuc/ieee754": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz",
@@ -5618,7 +5834,6 @@
       "version": "8.16.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.16.0.tgz",
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
-      "devOptional": true,
       "license": "MIT",
       "bin": {
         "acorn": "bin/acorn"
@@ -5627,6 +5842,15 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/acorn-import-attributes": {
+      "version": "1.9.5",
+      "resolved": "https://registry.npmjs.org/acorn-import-attributes/-/acorn-import-attributes-1.9.5.tgz",
+      "integrity": "sha512-n02Vykv5uA3eHGM/Z2dQrcD56kL8TyDb2p1+0P83PClMnC/nc+anbQRhIOWnSq4Ke/KvDPrY3C9hDtC/A3eHnQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "acorn": "^8"
+      }
+    },
     "node_modules/acorn-import-phases": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/acorn-import-phases/-/acorn-import-phases-1.0.4.tgz",
@@ -6306,12 +6530,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/bintrees": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/bintrees/-/bintrees-1.0.2.tgz",
-      "integrity": "sha512-VOMgTMwjAaUG580SXn3LacVgjurrbMme7ZZNYGSSV7mmtY6QQRh0Eg3pwIcntQ77DErK1L0NxkbetjcoXzVwKw==",
-      "license": "MIT"
-    },
     "node_modules/bl": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
@@ -9673,6 +9891,12 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/forwarded-parse": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/forwarded-parse/-/forwarded-parse-2.1.2.tgz",
+      "integrity": "sha512-alTFZZQDKMporBH77856pXgzhEzaUVmLCDk+egLgIgHst3Tpndzz8MnKe+GzRJRfvVdn69HhpW7cmXzvtLvJAw==",
+      "license": "MIT"
+    },
     "node_modules/fresh": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fresh/-/fresh-2.0.0.tgz",
@@ -9722,7 +9946,6 @@
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
       "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
@@ -10424,6 +10647,27 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/import-in-the-middle": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/import-in-the-middle/-/import-in-the-middle-3.2.0.tgz",
+      "integrity": "sha512-vR2B6HKIhaBjcZr2bLpFiJ1VbzOlRQ7aby4/gw5WPIzToLjqpfWw3VJ4sk1uDchoOODEirvO2jyrSPtUSL5CrQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "acorn": "^8.15.0",
+        "acorn-import-attributes": "^1.9.5",
+        "cjs-module-lexer": "^2.2.0",
+        "module-details-from-path": "^1.0.4"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/import-in-the-middle/node_modules/cjs-module-lexer": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/cjs-module-lexer/-/cjs-module-lexer-2.2.0.tgz",
+      "integrity": "sha512-4bHTS2YuzUvtoLjdy+98ykbNB5jS0+07EvFNXerqZQJ89F7DI6ET7OQo/HJuW6K0aVsKA9hj9/RVb2kQVOrPDQ==",
+      "license": "MIT"
+    },
     "node_modules/import-local": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/import-local/-/import-local-3.2.0.tgz",
@@ -13057,6 +13301,12 @@
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       "license": "MIT"
     },
+    "node_modules/module-details-from-path": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/module-details-from-path/-/module-details-from-path-1.0.4.tgz",
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+      "license": "MIT"
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -14979,19 +15229,6 @@
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-    "node_modules/prom-client": {
-      "version": "15.1.3",
-      "resolved": "https://registry.npmjs.org/prom-client/-/prom-client-15.1.3.tgz",
-      "integrity": "sha512-6ZiOBfCywsD4k1BN9IX0uZhF+tJkV8q8llP64G5Hajs4JOeVLPCwpPVcpXy3BwYiUGgyJzsJJQeOIv7+hDSq8g==",
-      "license": "Apache-2.0",
-      "dependencies": {
-        "@opentelemetry/api": "^1.4.0",
-        "tdigest": "^0.1.1"
-      },
-      "engines": {
-        "node": "^16 || ^18 || >=20"
-      }
-    },
     "node_modules/promise": {
       "version": "7.3.1",
       "resolved": "https://registry.npmjs.org/promise/-/promise-7.3.1.tgz",
@@ -15473,6 +15710,19 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/require-in-the-middle": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/require-in-the-middle/-/require-in-the-middle-8.0.1.tgz",
+      "integrity": "sha512-QT7FVMXfWOYFbeRBF6nu+I6tr2Tf3u0q8RIEjNob/heKY/nh7drD/k7eeMFmSQgnTtCzLDcCu/XEnpW2wk4xCQ==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.3.5",
+        "module-details-from-path": "^1.0.3"
+      },
+      "engines": {
+        "node": ">=9.3.0 || >=8.10.0 <9.0.0"
+      }
+    },
     "node_modules/resolve": {
       "version": "1.22.12",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.12.tgz",
@@ -16770,15 +17020,6 @@
         "streamx": "^2.15.0"
       }
     },
-    "node_modules/tdigest": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/tdigest/-/tdigest-0.1.2.tgz",
-      "integrity": "sha512-+G0LLgjjo9BZX2MfdvPfH+MKLCrxlXSYec5DaPYP1fe6Iyhf0/fSmJ0bFiZ1F8BT6cGXl2LpltQptzjXKWEkKA==",
-      "license": "MIT",
-      "dependencies": {
-        "bintrees": "1.0.2"
-      }
-    },
     "node_modules/teex": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/teex/-/teex-1.0.1.tgz",
@@ -17422,7 +17663,6 @@
       "version": "3.19.3",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.3.tgz",
       "integrity": "sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==",
-      "dev": true,
       "license": "BSD-2-Clause",
       "optional": true,
       "bin": {
diff --git a/package.json b/package.json
index 21ad06a7..3b256e51 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,12 @@
     "@nestjs/schedule": "^6.1.3",
     "@nestjs/swagger": "^7.1.16",
     "@nestjs/websockets": "^10.4.22",
+    "@opentelemetry/api": "^1.9.1",
+    "@opentelemetry/exporter-trace-otlp-http": "^0.219.0",
+    "@opentelemetry/instrumentation-http": "^0.219.0",
+    "@opentelemetry/resources": "^2.8.0",
+    "@opentelemetry/sdk-trace-node": "^2.8.0",
+    "@opentelemetry/semantic-conventions": "^1.41.1",
     "@prisma/client": "^6.19.2",
     "@types/uuid": "^9.0.7",
     "@willsoto/nestjs-prometheus": "^6.1.0",
diff --git a/src/common/trace.interceptor.ts b/src/common/trace.interceptor.ts
new file mode 100644
index 00000000..c5acfb7f
--- /dev/null
+++ b/src/common/trace.interceptor.ts
@@ -0,0 +1,44 @@
+import {
+  Injectable,
+  NestInterceptor,
+  ExecutionContext,
+  CallHandler,
+} from '@nestjs/common';
+import { Observable } from 'rxjs';
+import { tap } from 'rxjs/operators';
+import { trace, SpanStatusCode } from '@opentelemetry/api';
+
+@Injectable()
+export class TraceInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    const request = context.switchToHttp().getRequest();
+    const method = request.method;
+    const url = request.route?.path || request.url;
+    const spanName = `${method} ${url}`;
+
+    const tracer = trace.getTracer('propchain-backend');
+    const span = tracer.startSpan(spanName, {
+      attributes: {
+        'http.method': method,
+        'http.url': url,
+        'http.host': request.headers?.host || 'unknown',
+      },
+    });
+
+    return next.handle().pipe(
+      tap({
+        next: () => {
+          span.setAttribute('http.status_code', 200);
+          span.setStatus({ code: SpanStatusCode.OK });
+          span.end();
+        },
+        error: (err) => {
+          span.setAttribute('http.status_code', err.status || 500);
+          span.setStatus({ code: SpanStatusCode.ERROR, message: err.message });
+          span.recordException(err);
+          span.end();
+        },
+      }),
+    );
+  }
+}
diff --git a/src/common/tracing.ts b/src/common/tracing.ts
new file mode 100644
index 00000000..1d12e6de
--- /dev/null
+++ b/src/common/tracing.ts
@@ -0,0 +1,25 @@
+import { NodeSDK } from '@opentelemetry/sdk-node';
+import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';
+import { Resource } from '@opentelemetry/resources';
+import { SemanticResourceAttributes } from '@opentelemetry/semantic-conventions';
+import { getNodeAutoInstrumentations } from '@opentelemetry/instrumentation-http';
+import { diag, DiagConsoleLogger, DiagLogLevel } from '@opentelemetry/api';
+
+const otlpEndpoint = process.env.OTEL_EXPORTER_OTLP_ENDPOINT || 'http://localhost:4318/v1/traces';
+
+diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.INFO);
+
+export const otelSDK = new NodeSDK({
+  resource: new Resource({
+    [SemanticResourceAttributes.SERVICE_NAME]: 'propchain-backend',
+    [SemanticResourceAttributes.SERVICE_VERSION]: '1.0.0',
+  }),
+  traceExporter: new OTLPTraceExporter({
+    url: otlpEndpoint,
+  }),
+  instrumentations: [getNodeAutoInstrumentations()],
+});
+
+process.on('SIGTERM', () => {
+  otelSDK.shutdown().catch(console.error);
+});
diff --git a/src/main.ts b/src/main.ts
index 9a6ade6a..cdfb9951 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -4,6 +4,8 @@ import { NestFactory } from '@nestjs/core';
 import { Logger, ValidationPipe } from '@nestjs/common';
 import { Reflector } from '@nestjs/core';
 import { AppModule } from './app.module';
+import { otelSDK } from './common/tracing';
+import { TraceInterceptor } from './common/trace.interceptor';
 import { VersionHeaderInterceptor } from './versioning/version-header.interceptor';
 import { DeprecationWarningInterceptor } from './versioning/deprecation-warning.interceptor';
 import { CacheMetricsInterceptor } from './cache/cache-metrics.interceptor';
@@ -16,6 +18,14 @@ import { validateEnvironment } from './utils/validate-env';
 
 async function bootstrap() {
   validateEnvironment();
+
+  if (process.env.OTEL_ENABLED !== 'false') {
+    try {
+      await otelSDK.start();
+    } catch (err) {
+      console.error('OpenTelemetry SDK failed to start:', err);
+    }
+  }
   const app = await NestFactory.create(AppModule);
   const logger = new Logger('Bootstrap');
 
@@ -55,6 +65,9 @@ async function bootstrap() {
   const cacheMetricsInterceptor = app.get(CacheMetricsInterceptor);
   app.useGlobalInterceptors(cacheMetricsInterceptor);
 
+  // Apply OpenTelemetry tracing interceptor
+  app.useGlobalInterceptors(new TraceInterceptor());
+
   app.useGlobalPipes(
     new ValidationPipe({
       whitelist: true,