Supported Chains
This page lists the blockchain networks currently supported by ONCHAIN Gateway for Universal Access Schema (UAS) execution.
When constructing UAS links, integrators must use the exact chain slug listed below.
Chain availability may change over time as support expands. Integrators should validate support where possible and fail gracefully if a chain is unavailable.
Currently Supported Chains
Ethereum
ethereum
Supported
Polygon
polygon
Supported
Base
base
Supported
BNB Chain
bnbchain
Supported
Solana
solana
Imminent
Only the chain slugs listed above are valid for UAS execution.
Usage in UAS Links
The chain slug is used directly in the UAS path:
https://buy.onchain.money/[chain]/[token]Example:
https://buy.onchain.money/ethereum/0xabc123...Using an unsupported or incorrect chain slug will prevent execution.
Validation Guidance
Chain slugs must be lowercase
Chain slugs must match the table above exactly
Unsupported chains will not execute
No partial execution occurs on unsupported chains
Recommended behavior:
Hide or disable execution surfaces when a chain is unsupported
Fall back to native or alternative flows when appropriate
Source of Truth
The list above reflects current ONCHAIN Gateway availability.
For the most up-to-date list of supported chains, refer to the official ONCHAIN Help Center documentation on compatible chains.
Key Takeaway
When generating UAS links, always use a supported chain slug:
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