diff --git a/cookbook/specs/spec_add_union.json b/cookbook/specs/spec_add_union.json
new file mode 100644
index 0000000000..b3f59f28bb
--- /dev/null
+++ b/cookbook/specs/spec_add_union.json
@@ -0,0 +1,209 @@
+{
+  "proposal": {
+      "title": "Add Specs: Union",
+      "description": "Adding new specification support for relaying union data on Lava",
+      "specs": [
+          {
+              "index": "UNIONT",
+              "name": "union testnet",
+              "enabled": true,
+              "imports": [
+                  "COSMOSSDK"
+              ],
+              "reliability_threshold": 268435455,
+              "data_reliability_enabled": true,
+              "block_distance_for_finalized_data": 0,
+              "blocks_in_finalization_proof": 1,
+              "average_block_time": 6180,
+              "allowed_block_lag_for_qos_sync": 2,
+              "shares": 1,
+              "min_stake_provider": {
+                  "denom": "ulava",
+                  "amount": "47500000000"
+              },
+              "api_collections": [
+                  {
+                      "enabled": true,
+                      "collection_data": {
+                          "api_interface": "rest",
+                          "internal_path": "",
+                          "type": "GET",
+                          "add_on": ""
+                      },
+                      "apis": [
+                          {
+                              "name": "/tokenfactory.v1beta1/denoms/{denom}/authority_metadata",
+                              "block_parsing": {
+                                  "parser_arg": [
+                                      "latest"
+                                  ],
+                                  "parser_func": "DEFAULT"
+                              },
+                              "compute_units": 10,
+                              "enabled": true,
+                              "category": {
+                                  "deterministic": true,
+                                  "local": false,
+                                  "subscription": false,
+                                  "stateful": 0
+                              },
+                              "extra_compute_units": 0
+                          },
+                          {
+                              "name": "/tokenfactory.v1beta1/denoms_from_creator/{creator}",
+                              "block_parsing": {
+                                  "parser_arg": [
+                                      "latest"
+                                  ],
+                                  "parser_func": "DEFAULT"
+                              },
+                              "compute_units": 10,
+                              "enabled": true,
+                              "category": {
+                                  "deterministic": true,
+                                  "local": false,
+                                  "subscription": false,
+                                  "stateful": 0
+                              },
+                              "extra_compute_units": 0
+                          },
+                          {
+                              "name": "/tokenfactory.v1beta1/params",
+                              "block_parsing": {
+                                  "parser_arg": [
+                                      "latest"
+                                  ],
+                                  "parser_func": "DEFAULT"
+                              },
+                              "compute_units": 10,
+                              "enabled": true,
+                              "category": {
+                                  "deterministic": true,
+                                  "local": false,
+                                  "subscription": false,
+                                  "stateful": 0
+                              },
+                              "extra_compute_units": 0
+                          }
+                      ],
+                      "headers": [],
+                      "inheritance_apis": [],
+                      "parse_directives": [],
+                      "verifications": [
+                          {
+                              "name": "chain-id",
+                              "values": [
+                                  {
+                                      "expected_value": "union-testnet-8"
+                                  }
+                              ]
+                          },
+                          {
+                              "name": "pruning",
+                              "values": [
+                                  {
+                                      "latest_distance": 13980
+                                  }                                
+                              ]
+                          }
+                      ],
+                      "extensions": [
+                          {
+                              "name": "archive",
+                              "cu_multiplier": 5,
+                              "rule": {
+                                  "block": 13835
+                              }
+                          }
+                      ]
+                  },
+                  {
+                      "enabled": true,
+                      "collection_data": {
+                          "api_interface": "grpc",
+                          "internal_path": "",
+                          "type": "",
+                          "add_on": ""
+                      },
+                      "apis": [],
+                      "headers": [],
+                      "inheritance_apis": [],
+                      "parse_directives": [],
+                      "verifications": [
+                          {
+                              "name": "chain-id",
+                              "values": [
+                                  {
+                                      "expected_value": "union-testnet-8"
+                                  }
+                              ]
+                          },
+                          {
+                              "name": "pruning",
+                              "values": [
+                                {
+                                  "latest_distance": 13980
+                              }
+                              ]
+                          }
+                      ],
+                      "extensions": [
+                          {
+                              "name": "archive",
+                              "cu_multiplier": 5,
+                              "rule": {
+                                  "block": 13835
+                              }
+                          }
+                      ]
+                  },
+                  {
+                      "enabled": true,
+                      "collection_data": {
+                          "api_interface": "tendermintrpc",
+                          "internal_path": "",
+                          "type": "",
+                          "add_on": ""
+                      },
+                      "apis": [],
+                      "headers": [],
+                      "inheritance_apis": [],
+                      "parse_directives": [],
+                      "verifications": [
+                          {
+                              "name": "chain-id",
+                              "values": [
+                                  {
+                                      "expected_value": "union-testnet-8"
+                                  }
+                              ]
+                          },
+                          {
+                              "name": "pruning",
+                              "values": [
+                                  {
+                                      "latest_distance": 13980
+                                  },
+                                  {
+                                      "extension": "archive",
+                                      "expected_value": "1"
+                                  }
+                              ]
+                          }
+                      ],
+                      "extensions": [
+                          {
+                              "name": "archive",
+                              "cu_multiplier": 5,
+                              "rule": {
+                                  "block": 13835
+                              }
+                          }
+                      ]
+                  }
+              ]
+          } 
+      ]
+  },
+  "deposit": "10000000ulava"
+}
\ No newline at end of file