feat: add NEAR Protocol chains (#3224)

Author: paouvrard

.changeset/shaggy-zebras-camp.md

@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added NEAR Protocol chains.

src/chains/definitions/near.ts

@@ -0,0 +1,21 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const near = /*#__PURE__*/ defineChain({
+  id: 397,
+  name: 'NEAR Protocol',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'NEAR',
+    symbol: 'NEAR',
+  },
+  rpcUrls: {
+    default: { http: ['https://eth-rpc.mainnet.near.org'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'NEAR Explorer',
+      url: 'https://eth-explorer.near.org',
+    },
+  },
+  testnet: false,
+})

src/chains/definitions/nearTestnet.ts

@@ -0,0 +1,21 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const nearTestnet = /*#__PURE__*/ defineChain({
+  id: 398,
+  name: 'NEAR Protocol Testnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'NEAR',
+    symbol: 'NEAR',
+  },
+  rpcUrls: {
+    default: { http: ['https://eth-rpc.testnet.near.org'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'NEAR Explorer',
+      url: 'https://eth-explorer-testnet.near.org',
+    },
+  },
+  testnet: true,
+})

src/chains/index.ts

@@ -300,6 +300,8 @@ export { morphHolesky } from './definitions/morphHolesky.js'
 export { morphSepolia } from './definitions/morphSepolia.js'
 export { nahmii } from './definitions/nahmii.js'
 export { nautilus } from './definitions/nautilus.js'
+export { near } from './definitions/near.js'
+export { nearTestnet } from './definitions/nearTestnet.js'
 export { neonDevnet } from './definitions/neonDevnet.js'
 export { neonMainnet } from './definitions/neonMainnet.js'
 export { neoxMainnet } from './definitions/neoxMainnet.js'