**Purpose:** Drop-in content to open pull requests or submit listings for DeFi Oracle Meta Mainnet (Chain ID 138). Use when you are ready to submit; forms are already submitted where applicable (see [REPOSITORIES_AND_PRS_CHAIN138](../../00-meta/REPOSITORIES_AND_PRS_CHAIN138.md)).
2. Copy `eip155-138.json` to `_data/chains/eip155-138.json` in your fork
3. Commit, push, open PR. In the PR description paste the "Chain 138 spec" from [ADD_CHAIN138_TO_TRUST_WALLET.md](../ADD_CHAIN138_TO_TRUST_WALLET.md#chain-138-spec-for-forms--pr-description)
4. Follow their CONTRIBUTING.md and respond to review
**Note:** Chain 138 may already be listed (see https://chainlist.org/chain/138). If so, use this file only to propose updates.
Action: add Chain 138 to the chain registry (e.g. `registry.json` or current path per their docs).
2.**Assets / token logos**
Use the Assets App: https://assets.trustwallet.com
Action: submit token logos and metadata for supported chains.
3.**New chain business workflow**
Trust’s current assets docs say new chain requests should go through their Business Development contact path, even when Wallet Core technical work is also needed.
When Ledger confirms the request, use [ADD_CHAIN138_TO_LEDGER_LIVE.md](../ADD_CHAIN138_TO_LEDGER_LIVE.md) and push materials to **bis-innovations/LedgerLive** for their review. No PR-ready file here; follow Ledger’s instructions.
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## 4. CoinGecko / CMC
No GitHub PR. Use [CMC_COINGECKO_SUBMISSION_RUNBOOK.md](../coingecko/CMC_COINGECKO_SUBMISSION_RUNBOOK.md) and export from the report API, then submit via platform forms.