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[Cardano] Cardano Preview - Update RPC endpoint to preview network

Summary

This PR updates the Cardano Preview network configuration to use the correct preview RPC endpoint instead of the preproduction endpoint.

Changes Made

  • Updated Cardano Preview network RPC endpoint from preprod to preview
  • Changed provider URL to https://cardano-preview.blockfrost.io/api/v0
  • Updated icon path to use cardano_preview.png
  • Added native asset configuration for Cardano Preview
  • Added chain logo mapping for Cardano Preview
  • Added asset logo mapping for Cardano Preview native token

Chain Integration Details

Name of the blockchain: Cardano Preview

Type of the blockchain: Cardano (UTXO-based blockchain)

Blockchain providers:

  • Blockfrost API: https://cardano-preview.blockfrost.io/api/v0 (HTTP)

Metadata of the blockchain:

  • Symbol: tADA
  • Decimals: 6
  • Block Explorer: https://preview.cardanoscan.io
  • Network Type: Testnet
  • Status: ACTIVE

Logo of the blockchain:

  • Chain logo: /assets/chains/cardano_preview.png
  • Native asset logo: /assets/chain-assets/cardano_preview-native-tada.png

Block explorers:

Related Issues

Related to PR #652

Files Changed

  • packages/chain-list/src/data/ChainInfo.json - Updated RPC endpoint and configuration
  • packages/chain-list/src/data/ChainLogoMap.json - Added chain logo mapping
  • packages/chain-list/src/data/ChainAsset.json - Added native asset configuration
  • packages/chain-list/src/data/AssetLogoMap.json - Added asset logo mapping
  • packages/chain-list-assets/public/assets/chains/cardano_preview.png - Chain icon (new file)
  • packages/chain-list-assets/public/assets/chain-assets/cardano_preview-native-tada.png - Asset icon (new file)

Testing

  • Verified RPC endpoint is accessible: https://cardano-preview.blockfrost.io/api/v0
  • Confirmed block explorer is functional: https://preview.cardanoscan.io
  • Validated configuration matches Cardano Preview network specifications

Notes

This update corrects the RPC endpoint for the Cardano Preview testnet network, ensuring proper connectivity to the preview environment rather than the preproduction environment.

- Updated Cardano Preview network RPC endpoint from preprod to preview
- Changed provider URL to https://cardano-preview.blockfrost.io/api/v0
- Updated icon path to use cardano_preview.png
- Added native asset configuration for Cardano Preview
- Added chain logo mapping for Cardano Preview
- Added asset logo mapping for Cardano Preview native token

Related to PR Koniverse#652
@bluezdot
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@PDTnhah please review and integrate this chain together with chainlist update

@AndyT-51
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Hi @ruhil6789 , I'm really sorry for the delayed response, as we have lots of work that needs to be done before the New Year. We will start with the integration as soon as possible.

Thank you!

@AndyT-51
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AndyT-51 commented Dec 29, 2025

@PDTnhah please review and integrate this chain together with chainlist update

@PDTnhah please use this standardized logo: https://www.figma.com/design/z9s6aLTLoUdjMwoXLyWcPz/01.SubWallet-Project-Logo?node-id=12301-235&t=uk5yYbfwk6WOyYE2-4

@ruhil6789
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Hi @AndyT-51, hope you had a great Christmas 🎄

No worries at all — totally understand the workload around the New Year. Thanks for the update.

If it helps, I’d be happy to pick up or review any tasks in the meantime to reduce some load on your side. Just let me know where I can contribute.

Looking forward to the integration whenever things are ready. Thanks!
Wishing you and your family a wonderful New Year as well!

@ruhil6789
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@PDTnhah you can review and merge the request.

@PDTnhah
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PDTnhah commented Jan 12, 2026

@PDTnhah you can review and merge the request.

Your PR looks good, but to fully close this issue, updates in another repository are required, so I can’t merge your PR for now. We’ll merge it once everything is ready. Thanks!

@ruhil6789
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@bluezdot thank you for your response.

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4 participants