HalcoPay

supported coins

four chains, stablecoins included,
one api

every chain we support runs as a native daemon inside your HalcoPay instance. no third-party rpc rate limits, no shared custodial bridges, no hidden middleman. if the chain is here, you can accept it, payout it, and refund it.

ethereum eth

ethereum is the most common stablecoin rail. our daemon speaks to any standard json-rpc endpoint (your own geth/erigon or a provider).

  • confirmations: 12 default, configurable
  • address types: standard eoa, contract addresses for token deposits
  • erc-20 tokens: usdt, usdc, and any contract you whitelist
  • networks: mainnet, sepolia, holesky

tron trx

tron is the second-largest rail for usdt. fees are denominated in energy/bandwidth, not gas.

  • confirmations: 19 default (one solidified block)
  • trc-20 tokens: usdt-tron is the dominant stable
  • special note: fee estimation uses our own trontxsize fork

polygon matic

ethereum-compatible, much cheaper. native matic and all erc-20 tokens on the polygon network.

  • confirmations: 50 default (polygon has fast blocks, low finality)
  • tokens: usdt-polygon, usdc-polygon, any erc-20 deployed on polygon

bnb chain bnb

evm-compatible, popular for stablecoins in asia.

  • confirmations: 20 default
  • bep-20 tokens: usdt-bsc, usdc-bsc, and others via abi

tether usdt

the most-used stablecoin globally. usdt is not a chain — it's a contract deployed on multiple chains. HalcoPay supports all the ones we list here.

  • on tron (trc-20): lowest fees, dominant in latam & asia
  • on ethereum (erc-20): most institutional liquidity
  • on bnb chain (bep-20): popular cex withdrawals
  • on polygon: fast + cheap, growing

usd coin usdc

circle's regulated stablecoin. attestations published monthly. preferred by us-based merchants for regulatory clarity.

  • on ethereum: primary issuance
  • on polygon, bnb chain: bridged or native via cctp

need a chain we don't list?

any evm-compatible chain is one config away (just point the daemon at the rpc). non-evm chains take one sprint to add. tell us which one and we'll get back to you with a timeline.