feat: integrate Cronos (chainId 25) as second-class EVM chain

.beads/ss-dx5.4.json

@@ -0,0 +1,39 @@
+[
+  {
+    "id": "ss-dx5.4",
+    "title": "Integrate Cronos (chainId: 25, CRO, EVM Sidechain)",
+    "description": "TVL: $376.1M | RPC: https://cronos.drpc.org | Explorer: https://cronoscan.com | Token Support: All | Pattern B (RPC-only) | Crypto.com ecosystem",
+    "notes": "Logo: https://assets.relay.link/icons/25/light.png (dark: dark.png)\nCoinGecko: cronos\nArch: EVM Sidechain (Crypto.com)\nViem key: cronos\n⚠️ NON-ETH GAS: CRO - must configure in chainIdToFeeAssetId.ts\nChecklist: [ ] chain-adapters [ ] caip [ ] asset-service [ ] feature-flag [ ] plugin [ ] env-config [ ] icon/logo [ ] fee-asset-config\n\n--- RELAY ACTIVATION ---\n[ ] Add to chainIdToRelayChainId in packages/swapper/src/swappers/RelaySwapper/constant.ts\n[ ] Add native asset case in packages/swapper/src/swappers/RelaySwapper/utils/relayTokenToAssetId.ts\n--- ASSET DATA REGEN ---\n[ ] Create scripts/generateAssetData/\u003cchainname\u003e/index.ts\n[ ] Add case to scripts/generateAssetData/coingecko.ts\n[ ] Add import + getAssets call to scripts/generateAssetData/generateAssetData.ts\n[ ] Run: yarn generate:asset-data\n--- DRAFT PR ---\n[ ] Branch: feat/integrate-\u003cchainname\u003e-relay (off develop)\n[ ] gh pr create --draft using .github/PULL_REQUEST_TEMPLATE.md\n[ ] Fill: Description, Issue (Part of #11902), Risk (Low - behind feature flag), Testing (enable flag + verify chain + relay bridge quote), Operations (behind flag checkbox)\n[ ] yarn lint --fix \u0026\u0026 yarn type-check must pass before PR",
+    "status": "open",
+    "priority": 1,
+    "issue_type": "task",
+    "owner": "[email protected]",
+    "created_at": "2026-02-17T10:55:24Z",
+    "created_by": "NeOMakinG",
+    "updated_at": "2026-02-17T11:21:35Z",
+    "labels": [
+      "evm",
+      "non-eth-gas",
+      "relay",
+      "tier-1"
+    ],
+    "dependencies": [
+      {
+        "id": "ss-dx5",
+        "title": "Add support for missing Relay.link EVM chains",
+        "description": "Master epic tracking integration of ALL chains supported by Relay.link that ShapeShift web doesn't currently support. Enables cross-chain bridging capabilities via Relay infrastructure. See https://github.com/shapeshift/web/issues/11902 for full details. All new EVM chains will use Pattern B (RPC-only + getKnownTokens) since no ShapeShift unchained indexer infrastructure exists for these chains.",
+        "notes": "=== FROM ISSUE COMMENTS ===\n\nLOGO PATTERN: https://assets.relay.link/icons/{chainId}/light.png (dark: dark.png)\n\nARCHITECTURE GROUPS:\n- OP Stack (standard): Ink, Unichain, BOB, Mode, Hemi, World Chain, Soneium, Zircuit, Lisk, Cyber, Blast, Zora, Redstone, Shape, Superseed, Manta Pacific\n- zkEVM (special handling): Scroll, zkSync Era, Linea, Polygon zkEVM, Taiko, Abstract\n- Arbitrum Orbit: ApeChain, Xai, Sanko\n- Non-ETH gas (10 chains): Mantle(MNT), Metis(METIS), Cronos(CRO), Ronin(RON), Sonic(S), Flow(FLOW), Berachain(BERA), Plume(PLUME), Story(IP), Stable(gUSDT)\n\nCRITICAL CHAINS:\n1. Celo (42220): Native token is BOTH native AND ERC20. Relay uses wrapped CELO. Check relayTransactionMetadata.assetRequiringApproval\n2. Blast (81457): Rebasing ETH from L1 staking yield. USDB also rebases. Handle in balance displays.\n3. Ethereal (5064014): NOT in viem. Needs custom chain definition.\n4. zkSync Era (324) + Abstract (2741): Type 113 (EIP-712) transactions. Use viem zksync chainConfig.\n5. Linea (59144): Custom linea_estimateGas RPC method.\n6. Sei (1329): Parallelized EVM + CosmWasm interop. CoinGecko uses sei-v2 NOT sei.\n\nCOINGECKO GOTCHAS: sei-\u003esei-v2, plume-\u003eplume-network, zksync-\u003ezksync, metis-\u003emetis-andromeda, morph-\u003emorph-l2, gravity-\u003egravity-alpha, boba-\u003eboba, zora-\u003ezora-network, funkichain-\u003efunki, Superposition (capital S). BOB/Zero Network have null chain_identifier. 11 chains not on CoinGecko at all.\n\nPER-CHAIN CHECKLIST: [ ] chain-adapters [ ] caip [ ] asset-service [ ] feature-flag [ ] plugin [ ] env-config [ ] icon/logo\n\n=== RELAY SWAPPER INTEGRATION (per chain) ===\n\nFILE 1: packages/swapper/src/swappers/RelaySwapper/constant.ts\n  - Add to chainIdToRelayChainId map: [newChainChainId]: \u003cviem_chain\u003e.id (or numeric chain ID)\n  - Import the caip chainId (e.g., scrollChainId) from @shapeshiftoss/caip\n  - Import viem chain from viem/chains (or use raw numeric ID if not in viem)\n  - The reverse map relayChainIdToChainId auto-generates via invert()\n\nFILE 2: packages/swapper/src/swappers/RelaySwapper/utils/relayTokenToAssetId.ts\n  - Add case CHAIN_REFERENCE.NewChainMainnet: with ASSET_REFERENCE.NewChain + ASSET_NAMESPACE.slip44\n\nNO CHANGES NEEDED (for EVM chains):\n  - getRelayAssetAddress.ts (uses generic isNativeEvmAsset + DEFAULT_RELAY_EVM_TOKEN_ADDRESS)\n  - getRelayDefaultUserAddress.ts (falls through to DEFAULT_RELAY_EVM_USER_ADDRESS default)\n\nUPSTREAM DEPS REQUIRED (in @shapeshiftoss packages):\n  - @shapeshiftoss/caip: export newChainChainId, CHAIN_REFERENCE.NewChainMainnet, ASSET_REFERENCE.NewChain\n  - @shapeshiftoss/types: KnownChainIds.NewChainMainnet\n  - @shapeshiftoss/chain-adapters: NewChain chain adapter class\n  - viem/chains: chain config (or custom if not in viem)\n\nRELAY API: https://api.relay.link (env: VITE_RELAY_API_URL) - no per-chain config needed\n\n=== ASSET DATA REGENERATION (per chain) ===\n\nAfter integrating each chain, run a partial assets data regen to populate the token list.\n\nFILE 1 (CREATE): scripts/generateAssetData/\u003cchainname\u003e/index.ts\n  Pattern (identical for all EVM chains):\n    import { \u003cchainname\u003eChainId } from '@shapeshiftoss/caip'\n    import type { Asset } from '@shapeshiftoss/types'\n    import { \u003cchainname\u003e, unfreeze } from '@shapeshiftoss/utils'\n    import * as coingecko from '../coingecko'\n    export const getAssets = async (): Promise\u003cAsset[]\u003e =\u003e {\n      const assets = await coingecko.getAssets(\u003cchainname\u003eChainId)\n      return [...assets, unfreeze(\u003cchainname\u003e)]\n    }\n\nFILE 2 (MODIFY): scripts/generateAssetData/coingecko.ts\n  - Import \u003cchainname\u003eChainId from @shapeshiftoss/caip\n  - Import \u003cchainname\u003e native asset from @shapeshiftoss/utils\n  - Add case in the switch: case \u003cchainname\u003eChainId: return { assetNamespace: ASSET_NAMESPACE.erc20, category: adapters.chainIdToCoingeckoAssetPlatform(chainId), explorer/explorerAddressLink/explorerTxLink from \u003cchainname\u003e utils }\n  - NOTE: chains not on CoinGecko will only have the native asset (no ERC20 token list)\n\nFILE 3 (MODIFY): scripts/generateAssetData/generateAssetData.ts\n  - Import: import * as \u003cchainname\u003e from './\u003cchainname\u003e'\n  - Call: const \u003cchainname\u003eAssets = await \u003cchainname\u003e.getAssets()\n  - Spread into unfilteredAssetData: ...\u003cchainname\u003eAssets\n\nCOMMAND: yarn generate:asset-data\n  This regenerates: src/generated/asset-data.json + related-asset-index + manifest + compressed assets\n\n=== DRAFT PR CREATION (final step per chain) ===\n\nAfter all code changes are complete for a chain, open a draft PR using the repo template.\n\nBRANCH NAMING: feat/integrate-\u003cchainname\u003e-relay (e.g. feat/integrate-scroll-relay)\n\nCOMMAND:\n  gh pr create --draft --title 'feat: integrate \u003cChainName\u003e (chainId: \u003cid\u003e) via Relay' --body \"$(cat \u003c\u003c'PREOF'\n  ## Description\n\n  Add \u003cChainName\u003e (chainId: \u003cid\u003e) as a second-class EVM chain in ShapeShift Web with Relay bridge support.\n\n  **Changes:**\n  - Plugin registration in src/plugins/\u003cchainname\u003e/\n  - Feature flag `\u003cChainName\u003e` in preferencesSlice\n  - Relay swapper chain mapping in RelaySwapper/constant.ts\n  - Asset data generation via CoinGecko (`\u003ccoingecko_platform_id\u003e`)\n  - Environment config for RPC URL\n\n  **Chain details:**\n  - TVL: \u003ctvl\u003e\n  - Native token: \u003ctoken\u003e (18 decimals)\n  - Architecture: \u003carch_type\u003e\n  - RPC: \u003crpc_url\u003e\n  - Explorer: \u003cexplorer_url\u003e\n\n  ## Issue (if applicable)\n\n  Part of #11902\n\n  ## Risk\n\n  Low risk — new chain behind feature flag (`\u003cChainName\u003e`), no existing functionality affected.\n\n  \u003e New chain plugin + Relay bridge mapping. No modifications to existing chain logic.\n\n  ## Testing\n\n  ### Engineering\n\n  1. Enable feature flag: set `VITE_FEATURE_\u003cCHAINNAME\u003e=true` in .env\n  2. Verify chain appears in supported chains list\n  3. Verify native token balance loads (connect wallet with \u003ctoken\u003e on \u003cChainName\u003e)\n  4. Verify Relay bridge quote works: bridge ETH from Ethereum → \u003cChainName\u003e\n  5. Run `yarn lint --fix \u0026\u0026 yarn type-check` — must pass\n\n  ### Operations\n\n  - [x] :checkered_flag: My feature is behind a flag and doesn't require operations testing (yet)\n\n  ## Screenshots (if applicable)\n\n  N/A — chain integration, no UI changes.\n  PREOF\n  )\"\n\nNOTE: Replace all \u003cplaceholders\u003e with actual chain values from the bead description/notes.\nNOTE: Use --draft flag to create as draft PR.\nNOTE: Branch off develop (main branch is develop, not main).",
+        "status": "open",
+        "priority": 0,
+        "issue_type": "epic",
+        "owner": "[email protected]",
+        "created_at": "2026-02-17T10:55:02Z",
+        "created_by": "NeOMakinG",
+        "updated_at": "2026-02-17T11:21:27Z",
+        "external_ref": "gh-11902",
+        "dependency_type": "parent-child"
+      }
+    ],
+    "parent": "ss-dx5"
+  }
+]

.claude/contracts/second-class-evm-chain.md

@@ -34,7 +34,7 @@ All integration points required when adding a new second-class EVM chain to Shap
 
 7. **Feature Flag** - Multiple files:
    - `src/state/slices/preferencesSlice/preferencesSlice.ts` - FeatureFlags type + initial state
-   - `src/config.ts` - `VITE_FEATURE_<CHAIN>` validation + `VITE_<CHAIN>_NODE_URL` validation
+   - `src/config.ts` - `VITE_FEATURE_<CHAIN>` validation (`bool({ default: false })`) + `VITE_<CHAIN>_NODE_URL` validation (must use `url()`, NOT `str()`)
    - `src/test/mocks/store.ts` - Mock default
    - `src/vite-env.d.ts` - Type declarations
    - `.env` - Production default (usually `false`)
@@ -197,6 +197,7 @@ Some chains have an ERC20 contract that represents the native token (e.g., Mantl
 
 40. **Related Asset Index** - `public/generated/relatedAssetIndex.json` + `scripts/generateAssetData/generateRelatedAssetIndex/generateRelatedAssetIndex.ts`
     - If the native asset is ETH: verify it's in `manualRelatedAssetIndex[ethAssetId]` array
+    - **If the native asset is NOT ETH** (e.g., CRO, MNT): research whether the same token exists on Ethereum mainnet as an ERC20 (e.g., CRO has `eip155:1/erc20:0xa0b73e1ff0b80914ab6fe0444e65848c4c34450b`). If it does, add a manual mapping in `manualRelatedAssetIndex` in BOTH `generateRelatedAssetIndex.ts` AND `generateChainRelatedAssetIndex.ts`, linking the Ethereum ERC20 to the chain's native `slip44:60`. Use a research agent to check CoinGecko/block explorer if unsure. Without this, the chain's native token won't show as a "Popular Asset" when filtering by the chain.
     - Verify `relatedAssetIndex.json` has been regenerated and contains entries for the new chain's tokens
     - Check `generatedAssetData.json` - the chain's ERC20 tokens should have `relatedAssetKey` values linking them to mainnet counterparts
     - Without this, tokens won't appear in the trade modal "Popular Assets" section

.claude/skills/chain-integration/SKILL.md

@@ -1232,16 +1232,42 @@ export enum CoingeckoAssetPlatform {
 }
 ```
 
-**File**: `packages/caip/src/adapters/coingecko/utils.ts`
+**File**: `packages/caip/src/adapters/coingecko/index.ts` (3 touchpoints — enum + 2 switch statements)
 
-Add chain ID to platform mapping in the `chainIdToCoingeckoAssetPlatform` function:
+CRITICAL: This file has 3 separate places to update. Missing any causes runtime failures.
 
+Touchpoint 1 — Already shown above: `CoingeckoAssetPlatform` enum entry.
+
+Touchpoint 2 — `chainIdToCoingeckoAssetPlatform()` forward mapping (CHAIN_REFERENCE → platform):
 ```typescript
-// For EVM chains, add to the EVM switch statement
+// For EVM chains, add to the EVM switch (inside chainNamespace Evm case)
 case CHAIN_REFERENCE.[ChainName]Mainnet:
   return CoingeckoAssetPlatform.[ChainName]
+```
+
+Touchpoint 3 — `coingeckoAssetPlatformToChainId()` reverse mapping (platform → chainId):
+```typescript
+case CoingeckoAssetPlatform.[ChainName]:
+  return [chainLower]ChainId
+```
+NOTE: This reverse mapping requires importing `[chainLower]ChainId` from `../../constants`. Only import what is used — `chainIdToCoingeckoAssetPlatform` uses `CHAIN_REFERENCE` not chainId constants.
+
+**File**: `packages/caip/src/adapters/coingecko/utils.ts` (2 touchpoints)
 
-// For non-EVM chains, add separate case in outer switch
+Touchpoint 4 — Add chainId to `buildByChainId` loop in `COINGECKO_ASSET_PLATFORM_TO_CHAIN_ID_MAP` (~line 280-310):
+```typescript
+// Import chainId + assetId from constants at top of file
+import { [chainLower]AssetId, [chainLower]ChainId, ... } from '../../constants'
+
+// Add to the switch/if chain inside the buildByChainId loop
+prev[[chainLower]ChainId][assetId] = id
+```
+
+Touchpoint 5 — Add native asset to `COINGECKO_NATIVE_ASSET_PLATFORM_TO_CHAIN_ID_MAP` (~line 370-390):
+```typescript
+[[chainLower]ChainId]: { [[chainLower]AssetId]: '[coingecko-native-coin-id]' },
+// e.g., for Cronos: [cronosChainId]: { [cronosAssetId]: 'crypto-com-chain' }
+// e.g., for ETH-native chains: [scrollChainId]: { [scrollAssetId]: 'ethereum' }
 ```
 
 **File**: `packages/caip/src/adapters/coingecko/utils.test.ts`

.env

@@ -157,6 +157,7 @@ VITE_MONAD_NODE_URL=https://rpc.monad.xyz
 VITE_PLASMA_NODE_URL=https://rpc.plasma.to
 VITE_MANTLE_NODE_URL=https://rpc.mantle.xyz
 VITE_INK_NODE_URL=https://ink.drpc.org
+VITE_CRONOS_NODE_URL=https://cronos.drpc.org
 VITE_MEGAETH_NODE_URL=https://mainnet.megaeth.com/rpc
 VITE_LINEA_NODE_URL=https://rpc.linea.build
 VITE_SCROLL_NODE_URL=https://rpc.scroll.io/
@@ -307,6 +308,7 @@ VITE_HYPEREVM_NODE_URL=https://rpc.hyperliquid.xyz/evm
 VITE_FEATURE_HYPEREVM=true
 VITE_FEATURE_MANTLE=false
 VITE_FEATURE_INK=false
+VITE_FEATURE_CRONOS=false
 VITE_FEATURE_MEGAETH=false
 VITE_FEATURE_LINEA=false
 VITE_BERACHAIN_NODE_URL=https://rpc.berachain.com

.env.development

@@ -64,6 +64,7 @@ VITE_KATANA_NODE_URL=https://rpc.katana.network
 VITE_HYPEREVM_NODE_URL=https://rpc.hyperliquid.xyz/evm
 VITE_MANTLE_NODE_URL=https://rpc.mantle.xyz
 VITE_INK_NODE_URL=https://ink.drpc.org
+VITE_CRONOS_NODE_URL=https://cronos.drpc.org
 VITE_MEGAETH_NODE_URL=https://mainnet.megaeth.com/rpc
 VITE_LINEA_NODE_URL=https://rpc.linea.build
 VITE_BERACHAIN_NODE_URL=https://rpc.berachain.com
@@ -101,6 +102,7 @@ VITE_FEATURE_WC_DIRECT_CONNECTION=true
 VITE_FEATURE_CETUS_SWAP=true
 VITE_FEATURE_MANTLE=true
 VITE_FEATURE_INK=true
+VITE_FEATURE_CRONOS=true
 VITE_FEATURE_MEGAETH=true
 VITE_FEATURE_LINEA=true
 VITE_FEATURE_BERACHAIN=true

.gitignore

@@ -3,6 +3,10 @@
 # Local issue tracking
 .beads/
 
+# Claude Code ephemeral plans
+.claude/plan.md
+.claude/plans/
+
 # no zero installs
 .pnp.*
 .yarn/*

AGENTS.md

@@ -0,0 +1,40 @@
+# Agent Instructions
+
+This project uses **bd** (beads) for issue tracking. Run `bd onboard` to get started.
+
+## Quick Reference
+
+```bash
+bd ready              # Find available work
+bd show <id>          # View issue details
+bd update <id> --status in_progress  # Claim work
+bd close <id>         # Complete work
+bd sync               # Sync with git
+```
+
+## Landing the Plane (Session Completion)
+
+**When ending a work session**, you MUST complete ALL steps below. Work is NOT complete until `git push` succeeds.
+
+**MANDATORY WORKFLOW:**
+
+1. **File issues for remaining work** - Create issues for anything that needs follow-up
+2. **Run quality gates** (if code changed) - Tests, linters, builds
+3. **Update issue status** - Close finished work, update in-progress items
+4. **PUSH TO REMOTE** - This is MANDATORY:
+   ```bash
+   git pull --rebase
+   bd sync
+   git push
+   git status  # MUST show "up to date with origin"
+   ```
+5. **Clean up** - Clear stashes, prune remote branches
+6. **Verify** - All changes committed AND pushed
+7. **Hand off** - Provide context for next session
+
+**CRITICAL RULES:**
+- Work is NOT complete until `git push` succeeds
+- NEVER stop before pushing - that leaves work stranded locally
+- NEVER say "ready to push when you are" - YOU must push
+- If push fails, resolve and retry until it succeeds
+

CLAUDE.md

@@ -89,6 +89,7 @@
 ### Git & Version Control
 - Never commit changes unless explicitly requested
 - When creating commits, follow the Git Safety Protocol (see session notes)
+- **Before pushing**: always run `yarn lint --fix`, and if there are lint fixes, commit them before pushing. Never push without verifying lint passes first.
 - Main branch is `develop` - use this for PRs
 - Branch naming: Use descriptive names (e.g., `feat_gridplus`, `fix_wallet_connect`)
 - When opening PRs (via `gh`, Aviator `av`, or any CLI tool), ALWAYS use the `.github/PULL_REQUEST_TEMPLATE.md` template as the base for the PR body

headers/csps/chains/cronos.ts

@@ -0,0 +1,10 @@
+import { loadEnv } from 'vite'
+
+import type { Csp } from '../../types'
+
+const mode = process.env.MODE ?? process.env.NODE_ENV ?? 'development'
+const env = loadEnv(mode, process.cwd(), '')
+
+export const csp: Csp = {
+  'connect-src': [env.VITE_CRONOS_NODE_URL],
+}

headers/csps/index.ts

@@ -12,6 +12,7 @@ import { csp as bitcoin } from './chains/bitcoin'
 import { csp as bitcoincash } from './chains/bitcoincash'
 import { csp as bnbsmartchain } from './chains/bnbsmartchain'
 import { csp as cosmos } from './chains/cosmos'
+import { csp as cronos } from './chains/cronos'
 import { csp as dogecoin } from './chains/dogecoin'
 import { csp as ethereum } from './chains/ethereum'
 import { csp as gnosis } from './chains/gnosis'
@@ -122,6 +123,7 @@ export const csps = [
   berachain,
   hyperevm,
   ink,
+  cronos,
   katana,
   linea,
   litecoin,

package.json

@@ -55,7 +55,7 @@
     "test:packages": "yarn vitest run -c vitest-packages.config.mts",
     "translations:count-words-invalidate-since": "yarn tsx ./scripts/translations/countWordsInvalidateSince.ts",
     "translations:update-path": "yarn tsx ./scripts/translations/updateTranslationPath.ts",
-    "type-check": "yarn tsc --noEmit",
+    "type-check": "NODE_OPTIONS=--max-old-space-size=8192 yarn tsc --noEmit",
     "type-check-watch": "yarn tsc --noEmit --watch"
   },
   "browserslist": {

packages/caip/src/adapters/coingecko/generated/eip155_25/adapter.json

@@ -0,0 +1 @@
+{"eip155:25/slip44:60":"crypto-com-chain"}

packages/caip/src/adapters/coingecko/generated/index.ts

@@ -20,6 +20,7 @@ import mantle from "./eip155_5000/adapter.json";
 import berachain from "./eip155_80094/adapter.json";
 import ink from "./eip155_57073/adapter.json";
 import scroll from "./eip155_534352/adapter.json";
+import cronos from "./eip155_25/adapter.json";
 import cosmos from "./cosmos_cosmoshub-4/adapter.json";
 import thorchain from "./cosmos_thorchain-1/adapter.json";
 import mayachain from "./cosmos_mayachain-mainnet-v1/adapter.json";
@@ -54,6 +55,7 @@ export {
   berachain,
   ink,
   scroll,
+  cronos,
   cosmos,
   thorchain,
   mayachain,

packages/caip/src/adapters/coingecko/index.ts

@@ -13,6 +13,7 @@ import {
   CHAIN_NAMESPACE,
   CHAIN_REFERENCE,
   cosmosChainId,
+  cronosChainId,
   ethChainId,
   gnosisChainId,
   hyperEvmChainId,
@@ -62,6 +63,7 @@ export enum CoingeckoAssetPlatform {
   MegaEth = 'megaeth',
   Berachain = 'berachain',
   Scroll = 'scroll',
+  Cronos = 'cronos',
   Solana = 'solana',
   Starknet = 'starknet',
   Tron = 'tron',
@@ -134,6 +136,8 @@ export const chainIdToCoingeckoAssetPlatform = (chainId: ChainId): string => {
           return CoingeckoAssetPlatform.Ink
         case CHAIN_REFERENCE.ScrollMainnet:
           return CoingeckoAssetPlatform.Scroll
+        case CHAIN_REFERENCE.CronosMainnet:
+          return CoingeckoAssetPlatform.Cronos
         default:
           throw new Error(
             `chainNamespace ${chainNamespace}, chainReference ${chainReference} not supported.`,
@@ -253,6 +257,8 @@ export const coingeckoAssetPlatformToChainId = (
       return inkChainId
     case CoingeckoAssetPlatform.Scroll:
       return scrollChainId
+    case CoingeckoAssetPlatform.Cronos:
+      return cronosChainId
     case CoingeckoAssetPlatform.Cosmos:
       return cosmosChainId
     case CoingeckoAssetPlatform.Thorchain: