diff --git a/.vscode/settings.json b/.vscode/settings.json
index bcec5b1f..ca5e1fc0 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -21,6 +21,7 @@
     "pino",
     "prebuild",
     "preprod",
+    "sanchonet",
     "SECP",
     "ts",
     "utxo",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb3fbad3..ae6432fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- support for Cardano Sanchonet
 - translation of cost models from numerical IDs to strings,
   required for `cardano-db-sync 13.1.1.3` and newer [#130](https://github.com/blockfrost/blockfrost-backend-ryo/pull/130)
 
diff --git a/src/constants/genesis.ts b/src/constants/genesis.ts
index 33a5afc4..dcae4e15 100644
--- a/src/constants/genesis.ts
+++ b/src/constants/genesis.ts
@@ -50,6 +50,18 @@ export const GENESIS: Record<Network, ResponseTypes.Ledger> = {
     max_kes_evolutions: 62,
     security_param: 2160,
   },
+  sanchonet: {
+    active_slots_coefficient: 0.05,
+    update_quorum: 3,
+    max_lovelace_supply: '45000000000000000',
+    network_magic: 4,
+    epoch_length: 86_400,
+    system_start: 1_686_789_000,
+    slots_per_kes_period: 129_600,
+    slot_length: 1,
+    max_kes_evolutions: 62,
+    security_param: 432,
+  },
 };
 
 export const BYRON_GENESIS: Record<Network, ByronEraParameters> = {
@@ -77,6 +89,12 @@ export const BYRON_GENESIS: Record<Network, ByronEraParameters> = {
     safe_zone: 864,
     end_epoch: 0,
   },
+  sanchonet: {
+    epoch_length: 4320,
+    slot_length: 20,
+    safe_zone: 864,
+    end_epoch: 0,
+  },
 };
 
 export const PROTOCOL_VERSIONS: Record<number, ProtocolInfo> = {
diff --git a/src/types/common.ts b/src/types/common.ts
index 549c02ca..c02d8c3f 100644
--- a/src/types/common.ts
+++ b/src/types/common.ts
@@ -5,9 +5,9 @@ import { components } from '@blockfrost/openapi';
 export type Order = 'asc' | 'desc';
 export type AddressType = 'byron' | 'shelley';
 
-export const CARDANO_NETWORKS = ['mainnet', 'testnet', 'preview', 'preprod'];
+export const CARDANO_NETWORKS = ['mainnet', 'testnet', 'preview', 'preprod', 'sanchonet'];
 
-export type Network = 'mainnet' | 'testnet' | 'preview' | 'preprod';
+export type Network = 'mainnet' | 'testnet' | 'preview' | 'preprod' | 'sanchonet';
 
 export interface ResultFound {
   result: number;