⚒ Pennyforge / Rail Watch

Is that rail still alive?

On 17 August 2026 Coinbase quietly stopped accepting USDC on the Noble network — and called funds sent on it after the cutoff “not recoverable”. No checksum was wrong, no variant was confused: the receiving platform just stopped supporting the rail. Rail Watch tracks which networks each major exchange still accepts, and keeps a dated log of the sunsets. Send on a rail both ends still support.

Current support matrix

Checked 19 August 2026 (UTC). “Other” lists networks beyond the tracked set. Regional restrictions (Travel Rule) are marked per row — a rail that exists globally may not exist for you.

supported partial / variant — see note not supported (incl. sunset) ? not verified yet
USDC — USD Coin (Circle)
PlatformEthereumBaseArbitrumOptimismPolygonSolanaBSCTronAvalancheSuiOther
Coinbasesource: status page + help, 08-19?– Noble (sunset 08-17)
Krakensource: official page, 06-02Ink
Binancesource: announcements + directory???Starknet, World Chain
OKXsource: directory (platform says 10+)????
Geminisource: official page, 08-191
Bybitsource: directory + guides??????

Kraken ◐: two versions of USDC live on Arbitrum, Optimism and Polygon — bridged USDC.e and Circle-native USDC. Same address string, different token. The Resolver tells you which one you're holding. Gemini1: EU/EEA/UK/Singapore clients can withdraw USDC on Ethereum only (Travel Rule).

USDT — Tether
PlatformEthereumBaseArbitrumOptimismPolygonSolanaBSCTronAvalancheSuiOther
Coinbasesource: guides, 05-262?????– no TRC-20 (regulatory)
Krakensource: official page, 06-02??Flare, Ink, TON, Unichain
Binancesource: fee schedule, 05-26????TON
OKXsource: official help, updated 08-053????????
Geminisource: official page4??
Bybitsource: fee schedule, 05-26?????

OKX3: official help (updated 05 Aug 2026) states USDT on BSC is not supported for deposits. Gemini4: USDT not available to New York or EU/EEA clients. Coinbase USDT fee model is pass-through gas (no flat fee) — costs scale with Ethereum congestion.

DAI — MakerDAO
PlatformEthereumBaseArbitrumOptimismPolygonSolanaBSCTronAvalancheSuiOther
Coinbasesource: news + status, 08-17???– AVM/OPTM sunset 08-17
Krakensource: official page, 06-02?????
Binancesource: announcement, 04-075?????????◐ DAI suspended 04-07 → swap 1:1 to USDS
OKXsource: live aggregator, 08-19??????????? not in live fee feeds
Geminisource: official page???????
Bybitsource: fee comparison, 08-19??????????? ~3 networks per aggregator

DAI is fading: Binance suspended DAI in April 2026 and swapped it 1:1 to USDS (Sky); Coinbase keeps only Ethereum. If a platform offers you “DAI on BSC”, that rail may already be legacy — verify before sending. 5 Binance announcement, 04-07-2026.

EURC — Circle's euro stablecoin
PlatformEthereumBaseArbitrumOptimismPolygonSolanaBSCTronAvalancheSuiOther
Coinbasenot verified yet???????????
Krakensource: official page, 06-02
Binancenot verified yet???????????
OKXnot verified yet???????????
Geminisource: official page?– not listed
Bybitnot verified yet???????????

EURC stays Ethereum-only almost everywhere — the euro rail is thin. If you need EURC off Ethereum, self-custody is the honest answer today.

Recent rail changes

How to read this / sources

This page is refreshed by hand when we (or readers) spot changes — email pennyforge@emalupe.com with a correction and we'll verify it. Not a custodian, not financial advice.

Pair it with the rest of the forge

SendCheck — before you send: is this address real on the chain you think it is? (checksum + wrong-network + wrong-token verdict, 5 EVM chains, free 3 checks/day).

USDC Variant Resolver — is your “USDC” the Circle one or a bridged variant? (free, no quota).

Pro — 0.50 USDC, once — unlimited checks, on-chain payment, receipt verified in your browser.

Found a dead rail or a typo?

Every correction sharpens the matrix. If a sunset here saved you from a loss, a USDC-on-Base tip keeps the public RPCs warm.

Tip jar (USDC · Base): 0x0A0F553A2a277B4aE3dBEB0FEA48dbAFa85be955