feat: add Mantle and Mantle testnet (#399)

.changeset/chatty-moose-yawn.md

@@ -0,0 +1,5 @@
+---
+"@wagmi/chains": minor
+---
+
+Added Mantle and Mantle Testnet chains

packages/chains/README.md

@@ -60,6 +60,8 @@ const { chains, provider } = configureChains(
 - `iotexTestnet`
 - `localhost`
 - `mainnet`
+- `mantle`
+- `mantleTestnet`
 - `metis`
 - `metisGoerli`
 - `moonbaseAlpha`

packages/chains/src/index.ts

@@ -58,6 +58,8 @@ export { klaytn } from './klaytn'
 export { lineaTestnet } from './lineaTestnet'
 export { localhost } from './localhost'
 export { mainnet } from './mainnet'
+export { mantle } from './mantle'
+export { mantleTestnet } from './mantleTestnet'
 export { metis } from './metis'
 export { metisGoerli } from './metisGoerli'
 export { moonbaseAlpha } from './moonbaseAlpha'

packages/chains/src/mantle.ts

@@ -0,0 +1,26 @@
+import { Chain } from './types'
+
+export const mantle = {
+  id: 5000,
+  name: 'Mantle',
+  network: 'mantle',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'MNT',
+    symbol: 'MNT',
+  },
+  rpcUrls: {
+    default: { http: ['https://rpc.mantle.xyz'] },
+    public: { http: ['https://rpc.mantle.xyz'] },
+  },
+  blockExplorers: {
+    etherscan: {
+      name: 'Mantle Testnet Explorer',
+      url: 'https://explorer.mantle.xyz',
+    },
+    default: {
+      name: 'Mantle Testnet Explorer',
+      url: 'https://explorer.mantle.xyz',
+    },
+  },
+} as const satisfies Chain

packages/chains/src/mantleTestnet.ts

@@ -0,0 +1,27 @@
+import { Chain } from './types'
+
+export const mantleTestnet = {
+  id: 5001,
+  name: 'Mantle Testnet',
+  network: 'mantle',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'MNT',
+    symbol: 'MNT',
+  },
+  rpcUrls: {
+    default: { http: ['https://rpc.testnet.mantle.xyz'] },
+    public: { http: ['https://rpc.testnet.mantle.xyz'] },
+  },
+  blockExplorers: {
+    etherscan: {
+      name: 'Mantle Testnet Explorer',
+      url: 'https://explorer.testnet.mantle.xyz',
+    },
+    default: {
+      name: 'Mantle Testnet Explorer',
+      url: 'https://explorer.testnet.mantle.xyz',
+    },
+  },
+  testnet: true,
+} as const satisfies Chain