Supported Tokens & Networks

Use the token and network fields in payment and product creation requests. Not all token/network combinations are supported — refer to the table below.

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Compatibility matrix

Token	ERC20 (Ethereum)	BASE (Base)	BEP20 (BNB Chain)	ARB (Arbitrum)	POL (Polygon)
USDT	Yes	—	Yes	Yes	Yes
USDC	Yes	Yes	Yes	Yes	Yes
DAI	Yes	—	Yes	—	Yes
ETH	Yes	Yes	—	Yes	—
BNB	—	—	Yes	—	—
POL	—	—	—	—	Yes
ASTRAAI	Yes	—	—	—	—

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Networks

Network	Chain	Notes
ERC20	Ethereum mainnet	Highest fees
BASE	Base (Coinbase L2)	Lowest fees — recommended for most use cases
BEP20	BNB Chain	Low fees
ARB	Arbitrum One	Low fees
POL	Polygon PoS	Low fees

Recommended default: USDC on BASE. Lowest transaction fees, fast confirmation, and wide wallet support.

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Example — specifying token and network

curl -X POST https://apipay.byastra.ai/v1/api/payments \
  -H "X-Api-Key: ap_live_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "amount": 49.99,
    "token": "USDC",
    "network": "BASE",
    "redirect_url": "https://yourapp.com/success"
  }'

An unsupported combination (e.g. ETH on BEP20) returns 422 UNPROCESSABLE_ENTITY.