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# Trust Wallet Integration — Chain 138 (Defi Oracle Meta Mainnet)
**Status:** ✅ Completed (materials ready for Wallet Core PR)
This repository holds materials for adding **Defi Oracle Meta Mainnet (Chain ID 138)** to Trust Wallet: registry entry, docs, and any patches for [trustwallet/wallet-core](https://github.com/trustwallet/wallet-core).
## Repository
- **Remote:** https://github.com/bis-innovations/TrustWallet_Integrations.git
- **Canonical path:** `~/projects/TrustWallet-Integration` (sibling to `proxmox`)
## Contents
- **README.md** (this file)
- **registry-entry-chain138.json** — Suggested `registry.json` entry for wallet-core; use with Trusts [New EVM-compatible chain](https://developer.trustwallet.com/developer/wallet-core/newblockchain/newevmchain) steps.
## Usage
1. Clone [trustwallet/wallet-core](https://github.com/trustwallet/wallet-core).
2. Add the content of `registry-entry-chain138.json` to `registry.json` (appropriate position for EVM chains).
3. Run: `cd codegen-v2 && cargo run -- new-evmchain <chain>` (see Trust docs for exact CLI).
4. Extend derivation tests, build, and open a PR to wallet-core.
## Chain 138 spec (quick reference)
| Field | Value |
|-------|--------|
| Chain name | Defi Oracle Meta Mainnet |
| Chain ID | 138 (0x8a) |
| Derivation | m/44'/60'/0'/0/0 |
| CoinID | 10000138 (10000000 + chainId) |
| RPC | https://rpc-http-pub.d-bis.org, https://rpc.d-bis.org |
| Explorer | https://explorer.d-bis.org |
## Documentation (proxmox workspace)
Full user steps, Wallet Core PR process, and rationale:
- **Add Chain 138 to Trust Wallet:** `proxmox/docs/04-configuration/ADD_CHAIN138_TO_TRUST_WALLET.md`
- **Wallet ecosystem (why Snap, Ledger Live, Trust):** `proxmox/docs/04-configuration/CHAIN138_WALLET_ECOSYSTEM_AND_RATIONALE.md`
- **Repo layout (all wallet repos in ~/projects/):** `proxmox/docs/04-configuration/CHAIN138_WALLET_REPOSITORIES.md`