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Add USDC swaps, standardize stablecoin pairs to JUSD, prepare Mainnet config #99

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Merged
bernd2022 merged 8 commits into from
Jan 24, 2026
Merged

Add USDC swaps, standardize stablecoin pairs to JUSD, prepare Mainnet config #99

bernd2022 merged 8 commits into from
Jan 24, 2026

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@TaprootFreak TaprootFreak commented Jan 24, 2026 •
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Summary

  • Add USDC swap support (Ethereum only)
  • Standardize all stablecoin swaps to exclusively use JUSD (JuiceDollar)
  • Set all swap fees to 0%
  • Remove RBTC/RSK (Rootstock) configuration
  • Prepare PRD config for Citrea Mainnet

Environment Configuration

Config Citrea Network Status
dev-boltz.conf Citrea Testnet ✅ Ready
prd-boltz.conf Citrea Mainnet ⏳ Placeholders (awaiting addresses)

PRD Placeholders (to be replaced)

[CITREA_MAINNET_RPC]
[CITREA_MAINNET_ETHER_SWAP]
[CITREA_MAINNET_ERC20_SWAP]
[CITREA_MAINNET_JUSD]

Swap Pairs (both environments)

# Pair Min Max Fee
1 BTC ↔ BTC 2,500 sats 0.1 BTC 0%
2 BTC ↔ cBTC 2,500 sats 0.1 BTC 0%
3 USDT_ETH ↔ JUSD 1 10,000 0%
4 USDT_POLYGON ↔ JUSD 1 10,000 0%
5 USDC_ETH ↔ JUSD 1 10,000 0%

Token Configuration

Ethereum:

Token Contract
USDT_ETH 0xdAC17F958D2ee523a2206206994597C13D831ec7
USDC_ETH 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48

Polygon:

Token Contract
USDT_POLYGON 0xc2132D05D31c914a87C6611C10748AEb04B58e8F

Note: Polygon USDC is not supported due to bridge incompatibility (native USDC vs bridged USDC.e).

Citrea (Testnet - DEV):

Token Contract
JUSD_CITREA 0xFdB0a83d94CD65151148a131167Eb499Cb85d015

Removed

  • RBTC/RSK (Rootstock) swap pair and configuration
  • USDT_CITREA token
  • USDC_CITREA token

Test plan

  • Verify Boltz backend starts with DEV config
  • Test USDT_ETH → JUSD chain swap
  • Test JUSD → USDT_ETH reverse swap
  • Test USDC_ETH → JUSD chain swap
  • Test JUSD → USDC_ETH reverse swap
  • Add Citrea Mainnet addresses to PRD config
  • Verify Boltz backend starts with PRD config

@TaprootFreak TaprootFreak force-pushed the feature/add-usdc-swap-pairs branch from 6f132cc to 5f4c162 Compare January 24, 2026 08:32
@TaprootFreak
Add USDC swap pairs for Ethereum only
d8fa16f 
Add USDC support for Ethereum <-> Citrea swaps:

Tokens added:
- USDC_ETH (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48)
- USDC_CITREA (0xE045e6c36cF77FAA2CfB54466D71A3aEF7bBE839)

Swap pairs added:
- USDC_ETH <-> USDC_CITREA (prd)
- USDC_ETH <-> JUSD_CITREA (dev)

Limits: 1-10,000 USDC (same as USDT after PR #97)

Polygon USDC NOT supported due to bridge incompatibility:
- Polygon Bridge creates USDC.e (bridged)
- Native USDC uses different contract address
@TaprootFreak TaprootFreak force-pushed the feature/add-usdc-swap-pairs branch from 5f4c162 to d8fa16f Compare January 24, 2026 08:33
@TaprootFreak TaprootFreak changed the title Add USDC swap pairs for Ethereum and Polygon Add USDC swap pairs for Ethereum only Jan 24, 2026
@TaprootFreak TaprootFreak marked this pull request as ready for review January 24, 2026 08:47
@TaprootFreak TaprootFreak changed the title Add USDC swap pairs for Ethereum only Add USDC swaps and standardize all stablecoin pairs to JUSD Jan 24, 2026
@TaprootFreak TaprootFreak changed the title Add USDC swaps and standardize all stablecoin pairs to JUSD Add USDC swaps, standardize stablecoin pairs to JUSD, prepare Mainnet config Jan 24, 2026
@TaprootFreak TaprootFreak mentioned this pull request Jan 24, 2026
Merged
@bernd2022 bernd2022 merged commit ed7af22 into develop Jan 24, 2026
1 check passed
@bernd2022 bernd2022 deleted the feature/add-usdc-swap-pairs branch January 24, 2026 10:19
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@TaprootFreak @bernd2022