diff --git a/.env b/.env
deleted file mode 100644
index 901c2edc..00000000
--- a/.env
+++ /dev/null
@@ -1,54 +0,0 @@
-REACT_APP_KLEROS_ADDRESS=0x211f01e59b425253c0a0e9a7bf612605b42ce82c
-REACT_APP_KLEROS_LIQUID_ADDRESS=0x988b3a538b618c7a603e1c11ab82cd16dbe28069
-REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_ADDRESS=0x2B562ea613ad2f58746935C842d09EB147E1E940
-REACT_APP_PINAKION_ADDRESS=0x93ed3fbe21207ec2e8f2d3c3de6e058cb73bc04d
-REACT_APP_POLICY_REGISTRY_ADDRESS=0xCf1f07713d5193FaE5c1653C9f61953D048BECe4
-REACT_APP_UNISWAP_V2_ROUTER_02_ADDRESS=0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
-REACT_APP_UNISWAP_V2_FACTORY_ADDRESS=0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f
-REACT_APP_TOKEN_BRIDGE_ADDRESS=0x88ad09518695c6c3712AC10a214bE5109a655671
-REACT_APP_KLEROS_LIQUID_BLOCK_NUMBER=7303699
-REACT_APP_WEB3_FALLBACK_URL=wss://mainnet.infura.io/ws/v3/54fb3d87cd07464591ad2be29a1db32f
-REACT_APP_WEB3_FALLBACK_HTTPS_URL=https://mainnet.infura.io/v3/54fb3d87cd07464591ad2be29a1db32f
-REACT_APP_APPLICATION_SERVER_KEY=BNqPp3phfZUqu4G1SCkqNuZ_FDL4YuSeAEV97U_G3UbrOuOsTeaI9jHE3QNRJ-O8EH3F2OUdnJJ4ZOhp80FthKU
-
-REACT_APP_KLEROS_XDAI_ADDRESS=0x0000000000000000000000000000000000000000
-REACT_APP_KLEROS_LIQUID_XDAI_ADDRESS=0x9C1dA9A04925bDfDedf0f6421bC7EEa8305F9002
-REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_XDAI_ADDRESS=0x1c0D5A1fF532715a58d0456ef10532e3eb6ec5de
-REACT_APP_PINAKION_XDAI_ADDRESS=0xcb3231aBA3b451343e0Fddfc45883c842f223846
-REACT_APP_RAW_PINAKION_XDAI_ADDRESS=0x37b60f4e9a31a64ccc0024dce7d0fd07eaa0f7b3
-REACT_APP_POLICY_REGISTRY_XDAI_ADDRESS=0x9d494768936b6bDaabc46733b8D53A937A6c6D7e
-REACT_APP_UNISWAP_V2_ROUTER_02_XDAI_ADDRESS=0x0000000000000000000000000000000000000000
-REACT_APP_UNISWAP_V2_FACTORY_XDAI_ADDRESS=0x0000000000000000000000000000000000000000
-REACT_APP_TOKEN_BRIDGE_XDAI_ADDRESS=0xf6A78083ca3e2a662D6dd1703c939c8aCE2e268d
-REACT_APP_KLEROS_LIQUID_XDAI_BLOCK_NUMBER=16895601
-REACT_APP_WEB3_FALLBACK_XDAI_URL=wss://rpc.gnosischain.com/wss
-REACT_APP_WEB3_FALLBACK_XDAI_HTTPS_URL=https://rpc.gnosis.gateway.fm
-
-REACT_APP_KLEROS_LIQUID_GOERLI_ADDRESS='0x1128eD55ab2d796fa92D2F8E1f336d745354a77A'
-REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_GOERLI_ADDRESS='0x36780f8011f07683aacA36d5faC42AeBeAA96Cfe'
-REACT_APP_PINAKION_GOERLI_ADDRESS='0xA3B02bA6E10F55fb177637917B1b472da0110CcC'
-REACT_APP_POLICY_REGISTRY_GOERLI_ADDRESS='0x28c8A3A2E3c8Cd3F795DB83764316a1129a069bA'
-REACT_APP_TOKEN_BRIDGE_GOERLI_ADDRESS='0x00147c84f13764dCDAbAF1cbAe622fa6f6839085'
-REACT_APP_KLEROS_LIQUID_GOERLI_BLOCK_NUMBER=5893969
-REACT_APP_WEB3_FALLBACK_GOERLI_URL='wss://goerli.infura.io/ws/v3/f1c9535b961648f7bd18209b00e11163'
-REACT_APP_WEB3_FALLBACK_GOERLI_HTTPS_URL='https://rpc.ankr.com/eth_goerli'
-
-REACT_APP_KLEROS_LIQUID_CHIADO_ADDRESS='0xD8798DfaE8194D6B4CD6e2Da6187ae4209d06f27'
-REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_CHIADO_ADDRESS='0xfDD698D6c9393d08c5DaD8488AF6d08c151e4860'
-REACT_APP_PINAKION_CHIADO_ADDRESS='0xA353A70c8B3C7d38A869436d4CDeBe8e5611681a'
-REACT_APP_POLICY_REGISTRY_CHIADO_ADDRESS='0x53FC70FE1EC3a60f8939A62aBCc61bf1A57938D7'
-REACT_APP_TOKEN_BRIDGE_CHIADO_ADDRESS='0x09D549a48AC52F3f9945E7de6402c609c92aa2E1'
-REACT_APP_KLEROS_LIQUID_CHIADO_BLOCK_NUMBER=1165867
-REACT_APP_WEB3_FALLBACK_CHIADO_URL='wss://rpc.chiadochain.net/wss'
-REACT_APP_WEB3_FALLBACK_CHIADO_HTTPS_URL='https://rpc.chiadochain.net'
-
-REACT_APP_KLEROS_LIQUID_SEPOLIA_ADDRESS='0x90992fb4E15ce0C59aEFfb376460Fda4Ee19C879'
-REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_SEPOLIA_ADDRESS='0x5562Ac605764DC4039fb6aB56a74f7321396Cdf2'
-REACT_APP_PINAKION_SEPOLIA_ADDRESS='0xA1eE4D32bdBcA69cdb445D66fAA3804aFFa24bFE'
-REACT_APP_POLICY_REGISTRY_SEPOLIA_ADDRESS='0x88Fb25D399310c07d35cB9091b8346d8b1893aa5'
-REACT_APP_KLEROS_LIQUID_SEPOLIA_BLOCK_NUMBER=3635742
-REACT_APP_WEB3_FALLBACK_SEPOLIA_URL='wss://sepolia.infura.io/ws/v3/f1c9535b961648f7bd18209b00e11163'
-REACT_APP_WEB3_FALLBACK_SEPOLIA_HTTPS_URL='https://eth-sepolia.g.alchemy.com/v2/demo'
-
-REACT_APP_WEB3_FALLBACK_POLYGON_HTTPS_URL='https://polygon-mainnet.g.alchemy.com/v2/Y2IRJuoY0G-LAkHTqyXdVetLFm4R2NZT'
-REACT_APP_WEB3_FALLBACK_MUMBAI_HTTPS_URL='https://polygon-mumbai.g.alchemy.com/v2/demo'
diff --git a/.env.development b/.env.development
deleted file mode 100644
index f9f1f685..00000000
--- a/.env.development
+++ /dev/null
@@ -1,3 +0,0 @@
-REACT_APP_USER_SETTINGS_URL=https://hgyxlve79a.execute-api.us-east-2.amazonaws.com/production/user-settings
-REACT_APP_JUSTIFICATIONS_URL=https://kleros-api.netlify.app/.netlify/functions
-REACT_APP_METAEVIDENCE_URL=https://kleros-api.netlify.app/.netlify/functions/get-dispute-metaevidence
diff --git a/.env.example b/.env.example
new file mode 100644
index 00000000..dcd01f53
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,31 @@
+# Backend
+REACT_APP_USER_SETTINGS_URL=
+REACT_APP_JUSTIFICATIONS_URL=https://kleros-api.netlify.app/.netlify/functions
+REACT_APP_METAEVIDENCE_URL=https://kleros-api.netlify.app/.netlify/functions/get-dispute-metaevidence
+
+
+# Mainnet
+REACT_APP_WEB3_FALLBACK_MAINNET_URL=wss://...
+REACT_APP_WEB3_FALLBACK_MAINNET_HTTPS_URL=https://...
+
+# Gnosis
+REACT_APP_WEB3_FALLBACK_GNOSIS_URL=wss://...
+REACT_APP_WEB3_FALLBACK_GNOSIS_HTTPS_URL=https://...
+
+# Goerli
+REACT_APP_WEB3_FALLBACK_GOERLI_URL=wss://...
+REACT_APP_WEB3_FALLBACK_GOERLI_HTTPS_URL=https://...
+
+# Chiado
+REACT_APP_WEB3_FALLBACK_CHIADO_URL=wss://...
+REACT_APP_WEB3_FALLBACK_CHIADO_HTTPS_URL=https://...
+
+# Sepolia
+REACT_APP_WEB3_FALLBACK_SEPOLIA_URL=wss://...
+REACT_APP_WEB3_FALLBACK_SEPOLIA_HTTPS_URL=https://...
+
+# Polygon
+REACT_APP_WEB3_FALLBACK_POLYGON_HTTPS_URL=https://...
+
+# Mumbai
+REACT_APP_WEB3_FALLBACK_MUMBAI_HTTPS_URL=https://...
diff --git a/.env.production b/.env.production
deleted file mode 100644
index f9f1f685..00000000
--- a/.env.production
+++ /dev/null
@@ -1,3 +0,0 @@
-REACT_APP_USER_SETTINGS_URL=https://hgyxlve79a.execute-api.us-east-2.amazonaws.com/production/user-settings
-REACT_APP_JUSTIFICATIONS_URL=https://kleros-api.netlify.app/.netlify/functions
-REACT_APP_METAEVIDENCE_URL=https://kleros-api.netlify.app/.netlify/functions/get-dispute-metaevidence
diff --git a/README.md b/README.md
index 29614c8c..f4a9fe33 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ The Kleros Court user interface.
 3.  Configure MetaMask on the Goerli Test Network.
 4.  Run `yarn` to install dependencies and then `yarn start` to start the dev server.
 
-> To allow view-only mode, you can the REACT_APP_WEB3_FALLBACK_URL variable to a provider of your choice. Example: REACT_APP_WEB3_FALLBACK_URL=wss://mainnet.infura.io/ws/v3/<api-key>
+> To allow view-only mode, you can the REACT_APP_WEB3_FALLBACK_MAINNET_URL variable to a provider of your choice. Example: REACT_APP_WEB3_FALLBACK_MAINNET_URL=wss://mainnet.infura.io/ws/v3/<api-key>
 
 ## Other Scripts
 
diff --git a/netlify.toml b/netlify.toml
index 3daa1514..9dc84817 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -3,68 +3,8 @@
   NODE_VERSION='16.20.2'
   REACT_APP_CONTEXT='staging'
 
-  REACT_APP_KLEROS_ADDRESS='0x211f01e59b425253c0a0e9a7bf612605b42ce82c'
-  REACT_APP_KLEROS_LIQUID_ADDRESS='0x988b3a538b618c7a603e1c11ab82cd16dbe28069'
-  REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_ADDRESS='0x2B562ea613ad2f58746935C842d09EB147E1E940'
-  REACT_APP_PINAKION_ADDRESS='0x93ed3fbe21207ec2e8f2d3c3de6e058cb73bc04d'
-  REACT_APP_POLICY_REGISTRY_ADDRESS='0xCf1f07713d5193FaE5c1653C9f61953D048BECe4'
-  REACT_APP_UNISWAP_EXCHANGE_ADDRESS='0xF506828B166de88cA2EDb2A98D960aBba0D2402A'
-  REACT_APP_TOKEN_BRIDGE_ADDRESS='0x88ad09518695c6c3712AC10a214bE5109a655671'
-  REACT_APP_DRAW_EVENT_LISTENER_BLOCK_NUMBER='7303699'
-  REACT_APP_USER_SETTINGS_URL='https://8aoprv935h.execute-api.us-east-2.amazonaws.com/staging/user-settings'
-  REACT_APP_JUSTIFICATIONS_URL='https://kleros-api.netlify.app/.netlify/functions'
-  REACT_APP_METAEVIDENCE_URL='https://kleros-api.netlify.app/.netlify/functions/get-dispute-metaevidence'
-  REACT_APP_APPLICATION_SERVER_KEY='BNqPp3phfZUqu4G1SCkqNuZ_FDL4YuSeAEV97U_G3UbrOuOsTeaI9jHE3QNRJ-O8EH3F2OUdnJJ4ZOhp80FthKU'
-  REACT_APP_WEB3_FALLBACK_URL='wss://mainnet.infura.io/ws/v3/54fb3d87cd07464591ad2be29a1db32f'
-  REACT_APP_WEB3_FALLBACK_HTTPS_URL='https://mainnet.infura.io/v3/54fb3d87cd07464591ad2be29a1db32f'
-
-  REACT_APP_KLEROS_LIQUID_GOERLI_ADDRESS='0x1128eD55ab2d796fa92D2F8E1f336d745354a77A'
-  REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_GOERLI_ADDRESS='0x36780f8011f07683aacA36d5faC42AeBeAA96Cfe'
-  REACT_APP_PINAKION_GOERLI_ADDRESS='0xA3B02bA6E10F55fb177637917B1b472da0110CcC'
-  REACT_APP_POLICY_REGISTRY_GOERLI_ADDRESS='0x28c8A3A2E3c8Cd3F795DB83764316a1129a069bA'
-  REACT_APP_TOKEN_BRIDGE_GOERLI_ADDRESS='0x00147c84f13764dCDAbAF1cbAe622fa6f6839085'
-  REACT_APP_KLEROS_LIQUID_GOERLI_BLOCK_NUMBER='5893969'
-  REACT_APP_WEB3_FALLBACK_GOERLI_URL='wss://goerli.infura.io/ws/v3/f1c9535b961648f7bd18209b00e11163'
-  REACT_APP_WEB3_FALLBACK_GOERLI_HTTPS_URL='https://rpc.ankr.com/eth_goerli'
-
-  REACT_APP_KLEROS_LIQUID_CHIADO_ADDRESS='0xD8798DfaE8194D6B4CD6e2Da6187ae4209d06f27'
-  REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_CHIADO_ADDRESS='0xfDD698D6c9393d08c5DaD8488AF6d08c151e4860'
-  REACT_APP_PINAKION_CHIADO_ADDRESS='0xA353A70c8B3C7d38A869436d4CDeBe8e5611681a'
-  REACT_APP_POLICY_REGISTRY_CHIADO_ADDRESS='0x53FC70FE1EC3a60f8939A62aBCc61bf1A57938D7'
-  REACT_APP_TOKEN_BRIDGE_CHIADO_ADDRESS='0x09D549a48AC52F3f9945E7de6402c609c92aa2E1'
-  REACT_APP_KLEROS_LIQUID_CHIADO_BLOCK_NUMBER='1165867'
-  REACT_APP_WEB3_FALLBACK_CHIADO_URL='wss://rpc.chiado.gnosis.gateway.fm/ws'
-  REACT_APP_WEB3_FALLBACK_CHIADO_HTTPS_URL='https://rpc.chiado.gnosis.gateway.fm'
-
-  REACT_APP_KLEROS_LIQUID_SEPOLIA_ADDRESS='0x90992fb4E15ce0C59aEFfb376460Fda4Ee19C879'
-  REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_SEPOLIA_ADDRESS='0x5562Ac605764DC4039fb6aB56a74f7321396Cdf2'
-  REACT_APP_PINAKION_SEPOLIA_ADDRESS='0xA1eE4D32bdBcA69cdb445D66fAA3804aFFa24bFE'
-  REACT_APP_POLICY_REGISTRY_SEPOLIA_ADDRESS='0x88Fb25D399310c07d35cB9091b8346d8b1893aa5'
-  REACT_APP_KLEROS_LIQUID_SEPOLIA_BLOCK_NUMBER='3635742'
-  REACT_APP_WEB3_FALLBACK_SEPOLIA_URL='wss://sepolia.infura.io/ws/v3/f1c9535b961648f7bd18209b00e11163'
-  REACT_APP_WEB3_FALLBACK_SEPOLIA_HTTPS_URL='https://eth-sepolia.g.alchemy.com/v2/demo'
-
-  REACT_APP_KLEROS_XDAI_ADDRESS='0x0000000000000000000000000000000000000000'
-  REACT_APP_KLEROS_LIQUID_XDAI_ADDRESS='0x9C1dA9A04925bDfDedf0f6421bC7EEa8305F9002'
-  REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_XDAI_ADDRESS='0x1c0D5A1fF532715a58d0456ef10532e3eb6ec5de'
-  REACT_APP_PINAKION_XDAI_ADDRESS='0xcb3231aBA3b451343e0Fddfc45883c842f223846'
-  REACT_APP_RAW_PINAKION_XDAI_ADDRESS='0x37b60f4e9a31a64ccc0024dce7d0fd07eaa0f7b3'
-  REACT_APP_POLICY_REGISTRY_XDAI_ADDRESS='0x9d494768936b6bDaabc46733b8D53A937A6c6D7e'
-  REACT_APP_UNISWAP_V2_ROUTER_02_XDAI_ADDRESS='0x0000000000000000000000000000000000000000'
-  REACT_APP_UNISWAP_V2_FACTORY_XDAI_ADDRESS='0x0000000000000000000000000000000000000000'
-  REACT_APP_TOKEN_BRIDGE_XDAI_ADDRESS='0xf6A78083ca3e2a662D6dd1703c939c8aCE2e268d'
-  REACT_APP_KLEROS_LIQUID_XDAI_BLOCK_NUMBER='16895601'
-  REACT_APP_WEB3_FALLBACK_XDAI_URL='wss://rpc.gnosis.gateway.fm/ws'
-  REACT_APP_WEB3_FALLBACK_XDAI_HTTPS_URL='https://rpc.gnosis.gateway.fm'
-
-  REACT_APP_WEB3_FALLBACK_POLYGON_HTTPS_URL='https://polygon-mainnet.g.alchemy.com/v2/Y2IRJuoY0G-LAkHTqyXdVetLFm4R2NZT'
-  REACT_APP_WEB3_FALLBACK_MUMBAI_HTTPS_URL='https://polygon-mumbai.g.alchemy.com/v2/demo'
-
 [context.production.environment]
   REACT_APP_CONTEXT='production'
-  REACT_APP_USER_SETTINGS_URL='https://hgyxlve79a.execute-api.us-east-2.amazonaws.com/production/user-settings'
-  REACT_APP_JUSTIFICATIONS_URL='https://kleros-api.netlify.app/.netlify/functions'
-  REACT_APP_METAEVIDENCE_URL='https://kleros-api.netlify.app/.netlify/functions/get-dispute-metaevidence'
 
 [[redirects]]
   from = "/*"
diff --git a/src/api/side-chain/chain-params.js b/src/api/side-chain/chain-params.js
index 67780117..faaf757c 100644
--- a/src/api/side-chain/chain-params.js
+++ b/src/api/side-chain/chain-params.js
@@ -1,7 +1,9 @@
 import logoXPNK from "../../assets/images/xPNK.png";
 import logoStPNK from "../../assets/images/stPNK.png";
-
+import mainnet from "../../assets/deployments/mainnet.json";
+import gnosis from "../../assets/deployments/gnosis.json";
 import { getBaseUrl } from "../../helpers/block-explorer";
+import { GNOSIS, getFallbackHttpsUrl } from "../../helpers/networks";
 
 export const Tokens = {
   PNK: "PNK",
@@ -10,24 +12,24 @@ export const Tokens = {
 
 const supportedSideChains = {
   // xDai
-  100: {
-    chainId: 100,
+  [GNOSIS]: {
+    chainId: GNOSIS,
     chainName: "Gnosis Chain",
     nativeCurrency: { name: "xDAI", symbol: "xDAI", decimals: 18 },
-    rpcUrls: [ensureEnv("REACT_APP_WEB3_FALLBACK_XDAI_HTTPS_URL")],
+    rpcUrls: getFallbackHttpsUrl(GNOSIS),
     blockExplorerUrls: [getBaseUrl(100)],
-    bridgeAppUrl: `https://omni.gnosischain.com/bridge?from=1&to=100&token=${ensureEnv("REACT_APP_PINAKION_ADDRESS")}`,
+    bridgeAppUrl: `https://omni.gnosischain.com/bridge?from=1&to=100&token=${mainnet.pinakionAddress}`,
     bridgeAppHistoryUrl: "https://omni.gnosischain.com/history",
     mainChainId: 1,
     tokens: {
       [Tokens.PNK]: {
-        address: ensureEnv("REACT_APP_RAW_PINAKION_XDAI_ADDRESS"),
+        address: gnosis.rawPinakionAddress,
         symbol: "PNK",
         decimals: 18,
         image: `${window.location.origin}${logoXPNK}`,
       },
       [Tokens.stPNK]: {
-        address: ensureEnv("REACT_APP_PINAKION_XDAI_ADDRESS"),
+        address: gnosis.pinakionAddress,
         symbol: "stPNK",
         decimals: 18,
         image: `${window.location.origin}${logoStPNK}`,
@@ -88,13 +90,3 @@ const mainChainIdToSideChainParams = Object.values(supportedSideChains).reduce(
   (acc, chainParams) => Object.assign(acc, { [chainParams.mainChainId]: chainParams }),
   {}
 );
-
-function ensureEnv(key, msg = `process.env.${key} is not defined`) {
-  const value = process.env[key];
-
-  if (value === "" || value === undefined || value === null) {
-    throw new Error(msg);
-  }
-
-  return value;
-}
diff --git a/src/api/side-chain/create-side-chain-api.js b/src/api/side-chain/create-side-chain-api.js
index 361ef5b3..0cf7dad7 100644
--- a/src/api/side-chain/create-side-chain-api.js
+++ b/src/api/side-chain/create-side-chain-api.js
@@ -4,6 +4,7 @@ import KlerosLiquid from "../../assets/contracts/kleros-liquid.json";
 import TokenBridgeXDai from "../../assets/contracts/token-bridge-xdai.json";
 import WrappedPinakion from "../../assets/contracts/wrapped-pinakion.json";
 import XPinakion from "../../assets/contracts/x-pinakion.json";
+import gnosis from "../../assets/deployments/gnosis.json";
 import { getCounterPartyChainId, isSupportedSideChain } from "./chain-params";
 import * as xDai from "./xdai-api";
 
@@ -22,14 +23,11 @@ export default async function createSideChainApi(provider) {
 
 const xDaiParametersFactory = (web3) => {
   const contracts = {
-    tokenBridge: new web3.eth.Contract(TokenBridgeXDai.abi, ensureEnv("REACT_APP_TOKEN_BRIDGE_XDAI_ADDRESS")),
-    wrappedPinakion: new web3.eth.Contract(WrappedPinakion.abi, ensureEnv("REACT_APP_PINAKION_XDAI_ADDRESS")),
-    xPinakion: new web3.eth.Contract(XPinakion.abi, ensureEnv("REACT_APP_RAW_PINAKION_XDAI_ADDRESS")),
-    klerosLiquidExtraViews: new web3.eth.Contract(
-      KlerosLiquidExtraViews.abi,
-      ensureEnv("REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_XDAI_ADDRESS")
-    ),
-    klerosLiquid: new web3.eth.Contract(KlerosLiquid.abi, ensureEnv("REACT_APP_KLEROS_LIQUID_XDAI_ADDRESS")),
+    tokenBridge: new web3.eth.Contract(TokenBridgeXDai.abi, gnosis.tokenBridgeAddress),
+    wrappedPinakion: new web3.eth.Contract(WrappedPinakion.abi, gnosis.pinakionAddress),
+    xPinakion: new web3.eth.Contract(XPinakion.abi, gnosis.rawPinakionAddress),
+    klerosLiquidExtraViews: new web3.eth.Contract(KlerosLiquidExtraViews.abi, gnosis.klerosLiquidExtraViewsAddress),
+    klerosLiquid: new web3.eth.Contract(KlerosLiquid.abi, gnosis.klerosLiquidAddress),
   };
 
   contracts.tokenBridge.options.handleRevert = true;
@@ -43,13 +41,3 @@ const xDaiParametersFactory = (web3) => {
     destinationChainId: getCounterPartyChainId(100),
   };
 };
-
-function ensureEnv(key, msg = `process.env.${key} is not defined`) {
-  const value = process.env[key];
-
-  if (value === "" || value === undefined || value === null) {
-    throw new Error(msg);
-  }
-
-  return value;
-}
diff --git a/src/assets/deployments/chiado.json b/src/assets/deployments/chiado.json
new file mode 100644
index 00000000..308d3cec
--- /dev/null
+++ b/src/assets/deployments/chiado.json
@@ -0,0 +1,8 @@
+{
+    "klerosLiquidAddress": "0xD8798DfaE8194D6B4CD6e2Da6187ae4209d06f27",
+    "klerosLiquidExtraViewsAddress": "0xfDD698D6c9393d08c5DaD8488AF6d08c151e4860",
+    "pinakionAddress": "0xA353A70c8B3C7d38A869436d4CDeBe8e5611681a",
+    "policyRegistryAddress": "0x53FC70FE1EC3a60f8939A62aBCc61bf1A57938D7",
+    "tokenBridgeAddress": "0x09D549a48AC52F3f9945E7de6402c609c92aa2E1",
+    "klerosLiquidBlockNumber": 1165867
+}
diff --git a/src/assets/deployments/gnosis.json b/src/assets/deployments/gnosis.json
new file mode 100644
index 00000000..7fa267fb
--- /dev/null
+++ b/src/assets/deployments/gnosis.json
@@ -0,0 +1,12 @@
+{
+    "klerosAddress": "0x0000000000000000000000000000000000000000",
+    "klerosLiquidAddress": "0x9C1dA9A04925bDfDedf0f6421bC7EEa8305F9002",
+    "klerosLiquidExtraViewsAddress": "0x1c0D5A1fF532715a58d0456ef10532e3eb6ec5de",
+    "pinakionAddress": "0xcb3231aBA3b451343e0Fddfc45883c842f223846",
+    "rawPinakionAddress": "0x37b60f4e9a31a64ccc0024dce7d0fd07eaa0f7b3",
+    "policyRegistryAddress": "0x9d494768936b6bDaabc46733b8D53A937A6c6D7e",
+    "uniswapV2Router02Address": "0x0000000000000000000000000000000000000000",
+    "uniswapV2FactoryAddress": "0x0000000000000000000000000000000000000000",
+    "tokenBridgeAddress": "0xf6A78083ca3e2a662D6dd1703c939c8aCE2e268d",
+    "klerosLiquidBlockNumber": 16895601
+}
diff --git a/src/assets/deployments/goerli.json b/src/assets/deployments/goerli.json
new file mode 100644
index 00000000..eeba69fb
--- /dev/null
+++ b/src/assets/deployments/goerli.json
@@ -0,0 +1,8 @@
+{
+    "klerosLiquidAddress": "0x1128eD55ab2d796fa92D2F8E1f336d745354a77A",
+    "klerosLiquidExtraViewsAddress": "0x36780f8011f07683aacA36d5faC42AeBeAA96Cfe",
+    "pinakionAddress": "0xA3B02bA6E10F55fb177637917B1b472da0110CcC",
+    "policyRegistryAddress": "0x28c8A3A2E3c8Cd3F795DB83764316a1129a069bA",
+    "tokenBridgeAddress": "0x00147c84f13764dCDAbAF1cbAe622fa6f6839085",
+    "klerosLiquidBlockNumber": 5893969
+}
diff --git a/src/assets/deployments/mainnet.json b/src/assets/deployments/mainnet.json
new file mode 100644
index 00000000..028c016e
--- /dev/null
+++ b/src/assets/deployments/mainnet.json
@@ -0,0 +1,11 @@
+{
+    "klerosAddress": "0x211f01e59b425253c0a0e9a7bf612605b42ce82c",
+    "klerosLiquidAddress": "0x988b3a538b618c7a603e1c11ab82cd16dbe28069",
+    "klerosLiquidExtraViewsAddress": "0x2B562ea613ad2f58746935C842d09EB147E1E940",
+    "pinakionAddress": "0x93ed3fbe21207ec2e8f2d3c3de6e058cb73bc04d",
+    "policyRegistryAddress": "0xCf1f07713d5193FaE5c1653C9f61953D048BECe4",
+    "uniswapV2Router02Address": "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D",
+    "uniswapV2FactoryAddress": "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f",
+    "tokenBridgeAddress": "0x88ad09518695c6c3712AC10a214bE5109a655671",
+    "klerosLiquidBlockNumber": 7303699
+}
diff --git a/src/assets/deployments/sepolia.json b/src/assets/deployments/sepolia.json
new file mode 100644
index 00000000..0b69b83f
--- /dev/null
+++ b/src/assets/deployments/sepolia.json
@@ -0,0 +1,7 @@
+{
+    "klerosLiquidAddress": "0x90992fb4E15ce0C59aEFfb376460Fda4Ee19C879",
+    "klerosLiquidExtraViewsAddress": "0x5562Ac605764DC4039fb6aB56a74f7321396Cdf2",
+    "pinakionAddress": "0xA1eE4D32bdBcA69cdb445D66fAA3804aFFa24bFE",
+    "policyRegistryAddress": "0x88Fb25D399310c07d35cB9091b8346d8b1893aa5",
+    "klerosLiquidBlockNumber": 3635742
+}
diff --git a/src/bootstrap/drizzle.js b/src/bootstrap/drizzle.js
index ed790b5b..479ef2df 100644
--- a/src/bootstrap/drizzle.js
+++ b/src/bootstrap/drizzle.js
@@ -7,85 +7,47 @@ import Pinakion from "../assets/contracts/pinakion.json";
 import PolicyRegistry from "../assets/contracts/policy-registry.json";
 import UniswapV2Factory from "../assets/contracts/uniswap-v2-factory.json";
 import UniswapV2Router02 from "../assets/contracts/uniswap-v2-router-02.json";
+import { MAINNET, GOERLI, GNOSIS, CHIADO, SEPOLIA, getFallbackUrl } from "../helpers/networks";
+import {
+  oldKlerosAddresses,
+  klerosLiquidAddresses,
+  klerosLiquidExtraViewsAddresses,
+  pinakionAddresses,
+  policyRegistryAddresses,
+  uniswapV2FactoryAddresses,
+  uniswapV2Router02Addresses,
+} from "../helpers/deployments";
 
 const defaultOptions = {
-  networkWhitelist: [
-    1, // Mainnet
-    5, // Görli
-    100, // xDAI
-    10200, // Chiado
-    11155111, // Sepolia
-  ],
+  networkWhitelist: [MAINNET, GOERLI, GNOSIS, CHIADO, SEPOLIA],
   contracts: [
     {
       ...Kleros,
-      networks: {
-        1: { address: process.env.REACT_APP_KLEROS_ADDRESS },
-        5: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        100: { address: process.env.REACT_APP_KLEROS_XDAI_ADDRESS },
-        10200: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        11155111: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-      },
+      networks: oldKlerosAddresses,
     },
     {
       ...KlerosLiquid,
-      networks: {
-        1: { address: process.env.REACT_APP_KLEROS_LIQUID_ADDRESS },
-        5: { address: process.env.REACT_APP_KLEROS_LIQUID_GOERLI_ADDRESS },
-        100: { address: process.env.REACT_APP_KLEROS_LIQUID_XDAI_ADDRESS },
-        10200: { address: process.env.REACT_APP_KLEROS_LIQUID_CHIADO_ADDRESS },
-        11155111: { address: process.env.REACT_APP_KLEROS_LIQUID_SEPOLIA_ADDRESS },
-      },
+      networks: klerosLiquidAddresses,
     },
     {
       ...KlerosLiquidExtraViews,
-      networks: {
-        1: { address: process.env.REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_ADDRESS },
-        5: { address: process.env.REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_GOERLI_ADDRESS },
-        100: { address: process.env.REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_XDAI_ADDRESS },
-        10200: { address: process.env.REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_CHIADO_ADDRESS },
-        11155111: { address: process.env.REACT_APP_KLEROS_LIQUID_EXTRA_VIEWS_SEPOLIA_ADDRESS },
-      },
+      networks: klerosLiquidExtraViewsAddresses,
     },
     {
       ...Pinakion,
-      networks: {
-        1: { address: process.env.REACT_APP_PINAKION_ADDRESS },
-        5: { address: process.env.REACT_APP_PINAKION_GOERLI_ADDRESS },
-        100: { address: process.env.REACT_APP_PINAKION_XDAI_ADDRESS },
-        10200: { address: process.env.REACT_APP_PINAKION_CHIADO_ADDRESS },
-        11155111: { address: process.env.REACT_APP_PINAKION_SEPOLIA_ADDRESS },
-      },
+      networks: pinakionAddresses,
     },
     {
       ...PolicyRegistry,
-      networks: {
-        1: { address: process.env.REACT_APP_POLICY_REGISTRY_ADDRESS },
-        5: { address: process.env.REACT_APP_POLICY_REGISTRY_GOERLI_ADDRESS },
-        100: { address: process.env.REACT_APP_POLICY_REGISTRY_XDAI_ADDRESS },
-        10200: { address: process.env.REACT_APP_POLICY_REGISTRY_CHIADO_ADDRESS },
-        11155111: { address: process.env.REACT_APP_POLICY_REGISTRY_SEPOLIA_ADDRESS },
-      },
+      networks: policyRegistryAddresses,
     },
     {
       ...UniswapV2Factory,
-      networks: {
-        1: { address: process.env.REACT_APP_UNISWAP_V2_FACTORY_ADDRESS },
-        5: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        100: { address: process.env.REACT_APP_UNISWAP_V2_FACTORY_XDAI_ADDRESS },
-        10200: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        11155111: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-      },
+      networks: uniswapV2FactoryAddresses,
     },
     {
       ...UniswapV2Router02,
-      networks: {
-        1: { address: process.env.REACT_APP_UNISWAP_V2_ROUTER_02_ADDRESS },
-        5: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        100: { address: process.env.REACT_APP_UNISWAP_V2_ROUTER_02_XDAI_ADDRESS },
-        10200: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-        11155111: { address: "0x00000000219ab540356cbb839cbe05303d7705fa" }, // Dummy address for coping with Drizzle errors.
-      },
+      networks: uniswapV2Router02Addresses,
     },
   ],
   polls: {
@@ -94,20 +56,12 @@ const defaultOptions = {
   },
 };
 
-const chainIdToFallbackUrl = {
-  1: process.env.REACT_APP_WEB3_FALLBACK_URL,
-  5: process.env.REACT_APP_WEB3_FALLBACK_GOERLI_URL,
-  100: process.env.REACT_APP_WEB3_FALLBACK_XDAI_URL,
-  10200: process.env.REACT_APP_WEB3_FALLBACK_CHIADO_URL,
-  11155111: process.env.REACT_APP_WEB3_FALLBACK_SEPOLIA_URL,
-};
-
 const { DrizzleProvider, Initializer, useDrizzle } = drizzleReactHooks;
 
 export { DrizzleProvider, Initializer, useDrizzle };
 
 function createDrizzle({ fallbackChainId }) {
-  const fallbackUrl = chainIdToFallbackUrl[fallbackChainId];
+  const fallbackUrl = getFallbackUrl(fallbackChainId);
   const optionsWeb3Mixin = fallbackUrl
     ? {
         web3: {
@@ -142,7 +96,7 @@ function createDrizzle({ fallbackChainId }) {
  * Users with web3 support will not be affected.
  */
 const STORAGE_KEY = "@@kleros/court/fallback-chain-id";
-const DEFAULT_FALLBACK_CHAIN_ID = 1;
+const DEFAULT_FALLBACK_CHAIN_ID = MAINNET;
 
 const extractFromQueryString = (param, search) => {
   if (typeof URLSearchParams !== "function") {
diff --git a/src/bootstrap/use-notifications.js b/src/bootstrap/use-notifications.js
index 0b00e55d..e6e195f6 100644
--- a/src/bootstrap/use-notifications.js
+++ b/src/bootstrap/use-notifications.js
@@ -1,52 +1,44 @@
 import { useCallback, useEffect, useMemo, useState } from "react";
 import KlerosLiquid from "../assets/contracts/kleros-liquid.json";
+import { getKlerosLiquidBlockNumber, getKlerosLiquidAddress } from "../helpers/deployments";
+import { MAINNET, GOERLI, GNOSIS, CHIADO, SEPOLIA, getUrl } from "../helpers/networks";
 import Web3 from "web3";
 
 const networkIDData = {
-  1: {
+  [MAINNET]: {
     name: "",
-    provider: process.env.REACT_APP_WEB3_FALLBACK_HTTPS_URL,
+    provider: getUrl(MAINNET),
     nativeToken: "ETH",
     pnkToken: "PNK",
-    fromBlock: process.env.REACT_APP_KLEROS_LIQUID_BLOCK_NUMBER
-      ? Number(process.env.REACT_APP_KLEROS_LIQUID_BLOCK_NUMBER)
-      : 0,
+    fromBlock: getKlerosLiquidBlockNumber(1),
   },
-  5: {
+  [GOERLI]: {
     name: "_GOERLI",
-    provider: "https://goerli.infura.io/v3/261bdc527a49430b9b31d28ba9fecfde",
+    provider: getUrl(GOERLI),
     nativeToken: "ETH",
     pnkToken: "PNK",
-    fromBlock: process.env.REACT_APP_KLEROS_LIQUID_GOERLI_BLOCK_NUMBER
-      ? Number(process.env.REACT_APP_KLEROS_LIQUID_GOERLI_BLOCK_NUMBER)
-      : 0,
+    fromBlock: getKlerosLiquidBlockNumber(5),
   },
-  100: {
+  [GNOSIS]: {
     name: "_XDAI",
-    provider: "https://rpc.gnosischain.com",
+    provider: getUrl(GNOSIS),
     nativeToken: "xDAI",
     pnkToken: "stPNK",
-    fromBlock: process.env.REACT_APP_KLEROS_LIQUID_XDAI_BLOCK_NUMBER
-      ? Number(process.env.REACT_APP_KLEROS_LIQUID_XDAI_BLOCK_NUMBER)
-      : 0,
+    fromBlock: getKlerosLiquidBlockNumber(100),
   },
-  10200: {
+  [CHIADO]: {
     name: "_CHIADO",
-    provider: "https://rpc.chiadochain.net",
+    provider: getUrl(CHIADO),
     nativeToken: "xDAI",
     pnkToken: "PNK",
-    fromBlock: process.env.REACT_APP_KLEROS_LIQUID_CHIADO_BLOCK_NUMBER
-      ? Number(process.env.REACT_APP_KLEROS_LIQUID_CHIADO_BLOCK_NUMBER)
-      : 0,
+    fromBlock: getKlerosLiquidBlockNumber(10200),
   },
-  11155111: {
+  [SEPOLIA]: {
     name: "_SEPOLIA",
-    provider: "https://sepolia.infura.io/v3/498250ed13a94a6bbdd646ee97e9f64c",
+    provider: getUrl(SEPOLIA),
     nativeToken: "ETH",
     pnkToken: "PNK",
-    fromBlock: process.env.REACT_APP_KLEROS_LIQUID_SEPOLIA_BLOCK_NUMBER
-      ? Number(process.env.REACT_APP_KLEROS_LIQUID_SEPOLIA_BLOCK_NUMBER)
-      : 0,
+    fromBlock: getKlerosLiquidBlockNumber(11155111),
   },
 };
 
@@ -138,10 +130,7 @@ export default (networkID, onNewNotifications) => {
     }
 
     const web3 = new Web3(networkIDData[networkID].provider);
-    const klerosLiquid = new web3.eth.Contract(
-      KlerosLiquid.abi,
-      process.env[`REACT_APP_KLEROS_LIQUID${networkIDData[networkID].name}_ADDRESS`]
-    );
+    const klerosLiquid = new web3.eth.Contract(KlerosLiquid.abi, getKlerosLiquidAddress(networkID));
     let mounted = true;
     web3.eth.getBlockNumber().then((blockNumber) => {
       const fromBlock = blockNumber - 256;
diff --git a/src/bootstrap/web3.js b/src/bootstrap/web3.js
index 0871d706..da37725c 100644
--- a/src/bootstrap/web3.js
+++ b/src/bootstrap/web3.js
@@ -1,30 +1,21 @@
 import Web3 from "web3";
+import { MAINNET, getFallbackHttpsUrl, getUrl } from "../helpers/networks";
 
 let web3;
 
 if (typeof window !== "undefined" && typeof window.ethereum !== "undefined") {
   web3 = new Web3(window.ethereum.currentProvider);
-} else if (process.env.REACT_APP_WEB3_FALLBACK_HTTPS_URL || process.env.REACT_APP_WEB3_FALLBACK_URL) {
+} else if (getUrl(MAINNET)) {
   // Fallback provider.
-  web3 = new Web3(process.env.REACT_APP_WEB3_FALLBACK_HTTPS_URL ?? process.env.REACT_APP_WEB3_FALLBACK_URL);
+  web3 = new Web3(getUrl(MAINNET));
 } else {
   throw new Error("No fallback Web3 URL provided!");
 }
 
 export default web3;
 
-const chainIdToRpcEndpoint = {
-  1: process.env.REACT_APP_WEB3_FALLBACK_HTTPS_URL,
-  5: process.env.REACT_APP_WEB3_FALLBACK_GOERLI_HTTPS_URL,
-  100: process.env.REACT_APP_WEB3_FALLBACK_XDAI_HTTPS_URL,
-  137: process.env.REACT_APP_WEB3_FALLBACK_POLYGON_HTTPS_URL,
-  10200: process.env.REACT_APP_WEB3_FALLBACK_CHIADO_HTTPS_URL,
-  80001: process.env.REACT_APP_WEB3_FALLBACK_MUMBAI_HTTPS_URL,
-  11155111: process.env.REACT_APP_WEB3_FALLBACK_SEPOLIA_HTTPS_URL,
-};
-
 export function getReadOnlyRpcUrl(chainId) {
-  const url = chainIdToRpcEndpoint[chainId];
+  const url = getFallbackHttpsUrl(chainId);
   if (!url) {
     throw new Error(`Unsupported chain ID: ${chainId}`);
   }
diff --git a/src/containers/convert-pnk/wihdraw-stpnk-card.js b/src/containers/convert-pnk/wihdraw-stpnk-card.js
index 9aa1a459..0c9d10cd 100644
--- a/src/containers/convert-pnk/wihdraw-stpnk-card.js
+++ b/src/containers/convert-pnk/wihdraw-stpnk-card.js
@@ -4,6 +4,7 @@ import Web3 from "web3";
 import { useSideChainApi } from "../../api/side-chain";
 import { Card, Button, Form, Input } from "antd";
 import stPNKAbi from "../../assets/contracts/wrapped-pinakion.json";
+import gnosis from "../../assets/deployments/gnosis.json";
 import { getTokenSymbol } from "../../helpers/get-token-symbol";
 import { drizzleReactHooks } from "@drizzle/react-plugin";
 import { VIEW_ONLY_ADDRESS } from "../../bootstrap/dataloader";
@@ -138,7 +139,7 @@ const WithdrawStPnkForm = Form.create()(({ form, maxAvailable, isSubmitting, dis
           console.debug("Form validation error:", err);
           return;
         }
-        const stPNKaddress = chainId === 100 && process.env.REACT_APP_PINAKION_XDAI_ADDRESS;
+        const stPNKaddress = chainId === 100 && gnosis.pinakionAddress;
         if (stPNKaddress) {
           const stPNK = new drizzle.web3.eth.Contract(stPNKAbi.abi, stPNKaddress);
           const amountInWei = toBN(toWei(values.amount));
diff --git a/src/helpers/block-numbers.js b/src/helpers/block-numbers.js
deleted file mode 100644
index e593c3e1..00000000
--- a/src/helpers/block-numbers.js
+++ /dev/null
@@ -1,9 +0,0 @@
-const KlerosLiquidBlockNumbers = {
-  1: process.env.REACT_APP_KLEROS_LIQUID_BLOCK_NUMBER,
-  5: process.env.REACT_APP_KLEROS_LIQUID_GOERLI_BLOCK_NUMBER,
-  100: process.env.REACT_APP_KLEROS_LIQUID_XDAI_BLOCK_NUMBER,
-  10200: process.env.REACT_APP_KLEROS_LIQUID_CHIADO_BLOCK_NUMBER,
-  11155111: process.env.REACT_APP_KLEROS_LIQUID_SEPOLIA_BLOCK_NUMBER,
-};
-
-export const getKlerosLiquidBlockNumber = (chainId) => KlerosLiquidBlockNumbers[chainId];
diff --git a/src/helpers/deployments.js b/src/helpers/deployments.js
new file mode 100644
index 00000000..ce249ca0
--- /dev/null
+++ b/src/helpers/deployments.js
@@ -0,0 +1,81 @@
+import { MAINNET, GOERLI, GNOSIS, CHIADO, SEPOLIA } from "./networks";
+import mainnet from "../assets/deployments/mainnet.json";
+import gnosis from "../assets/deployments/gnosis.json";
+import goerli from "../assets/deployments/goerli.json";
+import sepolia from "../assets/deployments/sepolia.json";
+import chiado from "../assets/deployments/chiado.json";
+
+const DUMMY_ADDRESS = "0x00000000219ab540356cbb839cbe05303d7705fa"; // Dummy address for coping with Drizzle errors.
+
+export const KlerosLiquidBlockNumbers = {
+  1: mainnet.klerosLiquidBlockNumber,
+  5: goerli.klerosLiquidBlockNumber,
+  100: gnosis.klerosLiquidBlockNumber,
+  10200: chiado.klerosLiquidBlockNumber,
+  11155111: sepolia.klerosLiquidBlockNumber,
+};
+
+export const oldKlerosAddresses = {
+  [MAINNET]: { address: mainnet.klerosAddress },
+  [GOERLI]: { address: DUMMY_ADDRESS },
+  [GNOSIS]: { address: gnosis.klerosAddress },
+  [CHIADO]: { address: DUMMY_ADDRESS },
+  [SEPOLIA]: { address: DUMMY_ADDRESS },
+};
+
+export const klerosLiquidAddresses = {
+  [MAINNET]: { address: mainnet.klerosLiquidAddress },
+  [GOERLI]: { address: goerli.klerosLiquidAddress },
+  [GNOSIS]: { address: gnosis.klerosLiquidAddress },
+  [CHIADO]: { address: chiado.klerosLiquidAddress },
+  [SEPOLIA]: { address: sepolia.klerosLiquidAddress },
+};
+
+export const klerosLiquidExtraViewsAddresses = {
+  [MAINNET]: { address: mainnet.klerosLiquidExtraViewsAddress },
+  [GOERLI]: { address: goerli.klerosLiquidExtraViewsAddress },
+  [GNOSIS]: { address: gnosis.klerosLiquidExtraViewsAddress },
+  [CHIADO]: { address: chiado.klerosLiquidExtraViewsAddress },
+  [SEPOLIA]: { address: sepolia.klerosLiquidExtraViewsAddress },
+};
+
+export const pinakionAddresses = {
+  [MAINNET]: { address: mainnet.pinakionAddress },
+  [GOERLI]: { address: goerli.pinakionAddress },
+  [GNOSIS]: { address: gnosis.pinakionAddress },
+  [CHIADO]: { address: chiado.pinakionAddress },
+  [SEPOLIA]: { address: sepolia.pinakionAddress },
+};
+
+export const policyRegistryAddresses = {
+  [MAINNET]: { address: mainnet.policyRegistryAddress },
+  [GOERLI]: { address: goerli.policyRegistryAddress },
+  [GNOSIS]: { address: gnosis.policyRegistryAddress },
+  [CHIADO]: { address: chiado.policyRegistryAddress },
+  [SEPOLIA]: { address: sepolia.policyRegistryAddress },
+};
+
+export const uniswapV2FactoryAddresses = {
+  [MAINNET]: { address: mainnet.uniswapV2FactoryAddress },
+  [GOERLI]: { address: DUMMY_ADDRESS },
+  [GNOSIS]: { address: gnosis.uniswapV2FactoryAddress },
+  [CHIADO]: { address: DUMMY_ADDRESS },
+  [SEPOLIA]: { address: DUMMY_ADDRESS },
+};
+
+export const uniswapV2Router02Addresses = {
+  [MAINNET]: { address: mainnet.uniswapV2Router02Address },
+  [GOERLI]: { address: DUMMY_ADDRESS },
+  [GNOSIS]: { address: gnosis.uniswapV2Router02Address },
+  [CHIADO]: { address: DUMMY_ADDRESS },
+  [SEPOLIA]: { address: DUMMY_ADDRESS },
+};
+
+export const getKlerosLiquidBlockNumber = (chainId) => KlerosLiquidBlockNumbers[chainId];
+export const getOldKlerosAddress = (chainId) => oldKlerosAddresses[chainId].address;
+export const getKlerosLiquidAddress = (chainId) => klerosLiquidAddresses[chainId].address;
+export const getKlerosLiquidExtraViewsAddress = (chainId) => klerosLiquidExtraViewsAddresses[chainId].address;
+export const getPinakionAddress = (chainId) => pinakionAddresses[chainId].address;
+export const getPolicyRegistryAddress = (chainId) => policyRegistryAddresses[chainId].address;
+export const getUniswapV2FactoryAddress = (chainId) => uniswapV2FactoryAddresses[chainId].address;
+export const getUniswapV2Router02Address = (chainId) => uniswapV2Router02Addresses[chainId].address;
diff --git a/src/helpers/networks.js b/src/helpers/networks.js
index 8f4b88a3..abc56d00 100644
--- a/src/helpers/networks.js
+++ b/src/helpers/networks.js
@@ -1,15 +1,45 @@
+export const MAINNET = 1;
+export const GOERLI = 5;
+export const GNOSIS = 100;
+export const CHIADO = 10200;
+export const SEPOLIA = 11155111;
+export const POLYGON = 137;
+export const MUMBAI = 80001;
+
 export const chainIdToNetworkName = {
-  1: "Ethereum Mainnet",
-  5: "Ethereum Testnet Görli",
-  100: "Gnosis Chain",
-  10200: "Gnosis Testnet Chiado",
-  11155111: "Ethereum Testnet Sepolia",
+  [MAINNET]: "Ethereum Mainnet",
+  [GOERLI]: "Ethereum Testnet Görli",
+  [GNOSIS]: "Gnosis Chain",
+  [CHIADO]: "Gnosis Testnet Chiado",
+  [SEPOLIA]: "Ethereum Testnet Sepolia",
 };
 
 export const chainIdToNetworkShortName = {
-  1: "Mainnet",
-  5: "Görli",
-  100: "Gnosis Chain",
-  10200: "Chiado",
-  11155111: "Sepolia",
+  [MAINNET]: "Mainnet",
+  [GOERLI]: "Görli",
+  [GNOSIS]: "Gnosis Chain",
+  [CHIADO]: "Chiado",
+  [SEPOLIA]: "Sepolia",
+};
+
+const fallbackHttpsUrl = {
+  [MAINNET]: process.env.REACT_APP_WEB3_FALLBACK_MAINNET_HTTPS_URL,
+  [GOERLI]: process.env.REACT_APP_WEB3_FALLBACK_GOERLI_HTTPS_URL,
+  [GNOSIS]: process.env.REACT_APP_WEB3_FALLBACK_GNOSIS_HTTPS_URL,
+  [POLYGON]: process.env.REACT_APP_WEB3_FALLBACK_POLYGON_HTTPS_URL,
+  [CHIADO]: process.env.REACT_APP_WEB3_FALLBACK_CHIADO_HTTPS_URL,
+  [MUMBAI]: process.env.REACT_APP_WEB3_FALLBACK_MUMBAI_HTTPS_URL,
+  [SEPOLIA]: process.env.REACT_APP_WEB3_FALLBACK_SEPOLIA_HTTPS_URL,
 };
+
+const fallbackUrl = {
+  [MAINNET]: process.env.REACT_APP_WEB3_FALLBACK_MAINNET_URL,
+  [GOERLI]: process.env.REACT_APP_WEB3_FALLBACK_GOERLI_URL,
+  [GNOSIS]: process.env.REACT_APP_WEB3_FALLBACK_GNOSIS_URL,
+  [CHIADO]: process.env.REACT_APP_WEB3_FALLBACK_CHIADO_URL,
+  [SEPOLIA]: process.env.REACT_APP_WEB3_FALLBACK_SEPOLIA_URL,
+};
+
+export const getFallbackHttpsUrl = (chainId) => fallbackHttpsUrl[chainId];
+export const getFallbackUrl = (chainId) => fallbackUrl[chainId];
+export const getUrl = (chainId) => fallbackHttpsUrl[chainId] ?? fallbackUrl[chainId];