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All Next Steps (Chain 138 / MetaMask Integration)
Last Updated: 2026-01-31
Document Version: 1.0
Status: Active Documentation
Consolidated list of next steps for dual-chain provider, explorer, token-aggregation, Snap, and optional business/listing work.
Completion status (2026-01-30): Items 1-11 completed (provider test, integration script, builds, live deployment to VMID 5000). See PHASES_1-4_COMPLETE.md and DEPLOYMENT_COMPLETE_VMID5000.md.
Testing and integration (runnable now)
| # | Step | Action |
|---|---|---|
| 1 | Provider integration test | cd metamask-integration/provider && node test-integration.mjs (or npm run test:integration) |
| 2 | Full integration script | cd metamask-integration && ./scripts/integration-test-all.sh |
| 3 | Optional: Explorer API | Set EXPLORER_API_URL (e.g. http://localhost:8080) and re-run script; ensure explorer backend + DB are running |
| 4 | Optional: Token-aggregation API | Set TOKEN_AGGREGATION_URL (e.g. http://localhost:3000) and re-run script when service + DB are running |
| 5 | Provider E2E (manual) | Serve metamask-integration/examples/ (e.g. npx serve metamask-integration) and open provider-e2e.html with MetaMask |
Fixes and builds
| # | Step | Action |
|---|---|---|
| 6 | Token-aggregation build | Fix TypeScript errors in smom-dbis-138/services/token-aggregation/src/config/canonical-tokens.ts so npm run build passes |
| 7 | Chain 138 Snap build | In metamask-integration/chain138-snap/: run yarn install then yarn build; fix any peer/version issues if needed |
| 8 | Snap in MetaMask Flask | Run yarn start in chain138-snap/, install Snap via the provided site (e.g. localhost:8000), test get_chain138_config and get_chain138_market_chains with token-aggregation apiBaseUrl |
Explorer and token-aggregation (run with DB)
| # | Step | Action |
|---|---|---|
| 9 | Explorer backend | Configure DB, run explorer API, verify GET /api/config/networks and GET /api/config/token-list |
| 10 | Explorer Wallet page | Run explorer frontend, open Wallet page, test “Add to MetaMask” for Chain 138, Mainnet, ALL Mainnet |
| 11 | Token-aggregation service | After build fix: configure DB and env, run service, verify GET /api/v1/chains, GET /api/v1/tokens?chainId=138 |
Optional: Custom MetaMask Snap (roadmap)
| # | Step | Action |
|---|---|---|
| 12 | Market data / pricing in Snap | Have Snap call token-aggregation REST API for prices and token list; show in Snap UI |
| 13 | Swap flow | Add or integrate a quote API for Chain 138; Snap requests quote → user approves → Snap returns tx to sign |
| 14 | Bridge flow | Expose bridge API (CCIP + custom routes); Snap shows routes and builds tx for user to sign |
| 15 | Snap testing and distribution | Test in MetaMask Flask; optionally submit to MetaMask Snap directory |
See: SNAP_IMPLEMENTATION_ROADMAP.md
Optional: Native MetaMask USD and Consensys
| # | Step | Action |
|---|---|---|
| 16 | CoinGecko submission | Submit Chain 138 and tokens per docs/04-configuration/coingecko/COINGECKO_SUBMISSION_GUIDE.md to improve native USD in MetaMask |
| 17 | Consensys outreach | Use metamask-integration/docs/CONSENSYS_OUTREACH_PACKAGE.md to request native Swaps/Bridge support for Chain 138 |
Optional: Smart Accounts / other
| # | Step | Action |
|---|---|---|
| 18 | Paymaster (optional) | Deploy Paymaster contract for gas abstraction if using Smart Accounts Kit |
| 19 | Market data for dApps | Use token-aggregation REST API as single source for prices, volume, OHLCV in dApps and Snap; see REST_API_REFERENCE.md |
Quick reference
- Provider test:
metamask-integration/provider/test-integration.mjs - Integration script:
metamask-integration/scripts/integration-test-all.sh - Integration doc:
metamask-integration/docs/INTEGRATION_AND_TESTING.md - Feature parity and optional actions: METAMASK_CHAIN138_FEATURE_PARITY_ANALYSIS.md §7
- Snap roadmap: SNAP_IMPLEMENTATION_ROADMAP.md
Last updated: 2026-01-30