---
url: /docs/kb/supported-chains.md
description: >-
  Reference for the blockchains, stablecoins, and per-feature chain support
  across BlindPay payins, payouts, wallets, and transfers.
---

BlindPay settles stablecoins on Ethereum, Polygon, Base, Arbitrum (EVM), Stellar, Solana, and Tron. Production instances run on mainnets with USDC or USDT; development instances run on the matching testnets with USDB, BlindPay's test stablecoin.

There is no runtime endpoint that lists supported chains or tokens. This page is the reference: the enums below are fixed by the API and are the source of truth for which `network` and `token` values you can send.

## Chains

| Chain | Mainnet chain ID | Testnet (development) | Testnet chain ID | Mainnet stablecoins |
| --- | --- | --- | --- | --- |
| Ethereum | 1 | Ethereum Sepolia | 11155111 | USDC, USDT |
| Polygon | 137 | Polygon Amoy | 80002 | USDC, USDT |
| Base | 8453 | Base Sepolia | 84532 | USDC |
| Arbitrum | 42161 | Arbitrum Sepolia | 421614 | USDC |
| Stellar | n/a | Stellar Testnet | n/a | USDC |
| Solana | n/a | Solana Devnet | n/a | USDC, USDT |
| Tron | n/a | none | n/a | USDT |

Stellar, Solana, and Tron do not have a real numeric chain ID; the API accepts the network name directly (`stellar`, `solana`, `tron`), not a chain ID. Tron has no testnet, so it cannot be exercised on a development instance.

USDB, BlindPay's test stablecoin, is available only on development instances and only on the six testnets above (`sepolia`, `base_sepolia`, `arbitrum_sepolia`, `polygon_amoy`, `stellar_testnet`, `solana_devnet`). It has no mainnet deployment on any chain. Mint it from the dashboard (EVM) or via the mint endpoints (Stellar, Solana). See [Mint USDB](/stablecoin/payouts#mint-usdb).

A production instance can only use `USDC` or `USDT` on a mainnet network. A development instance can only use `USDB` on a testnet network. Sending a mismatched combination (for example `USDC` on `sepolia`, or `USDB` on `polygon`) is rejected.

## Support by feature

"Payins" are the stablecoin delivery side of a bank deposit (on-ramp); "payouts" are the stablecoin source side of a bank transfer out (off-ramp). See [Bank transfer in](/fiat/receive) and [Pay out to bank](/fiat/send) for the fiat-side flow, or [On-ramp](/stablecoin/receive) and [Off-ramp](/stablecoin/send) for the full crypto mechanics.

| Feature | Chains | Stablecoins | Notes |
| --- | --- | --- | --- |
| Payins (on-ramp delivery) | Ethereum, Polygon, Base, Arbitrum, Stellar, Solana, Tron | USDC, USDT (network-dependent; USDC not on Tron) | |
| Payouts (off-ramp source) | Ethereum, Polygon, Base, Arbitrum, Stellar, Solana, Tron | USDC, USDT (network-dependent; USDC not on Tron; USDT not on Base/Arbitrum/Stellar) | |
| Managed wallets (beta) | Ethereum, Polygon, Base, Arbitrum, Solana | USDC, USDT (USDB on testnet) | |
| External blockchain wallets | Ethereum, Polygon, Base, Arbitrum, Stellar, Solana, Tron | USDC, USDT (network-dependent; USDC not on Tron; USDT not on Base/Arbitrum/Stellar) | Store an address you already control; see [Managed wallet](/stablecoin/store) |
| Transfers (beta) | Same token, same network only | USDC, USDT (USDT restricted to Polygon) | No bridging or token conversion |

Not every token is deployed on every chain. In particular:

* USDC is not deployed on Tron.
* USDT is only deployed on Polygon, Ethereum, Tron, and Solana, not on Base, Arbitrum, or Stellar.
* USDB only exists on the six development testnets, never on a mainnet.

The quote-creation endpoints enforce these combinations and return a descriptive error (for example, a token not supported on the requested chain) if you request an unsupported pairing.

## Related

* [Bank transfer in](/fiat/receive): payin quotes and payment methods on the fiat side
* [Pay out to bank](/fiat/send): payout quotes and bank account types on the fiat side
* [On-ramp](/stablecoin/receive): payin delivery networks and corridors
* [Off-ramp](/stablecoin/send): payout authorization per network, including Stellar and Solana
* [Managed wallet](/stablecoin/store): wallet chain support and balance operations