Supported Chains
Spectrum supports 24 blockchain networks across EVM, Solana, Bitcoin, Starknet, and Cosmos SDK.
| Chain | Slug | Type | Endpoints |
|---|---|---|---|
| Ethereum | ethereum | EVM | All |
| Polygon | polygon | EVM | All |
| BNB Chain | bsc | EVM | All |
| Optimism | optimism | EVM | All |
| Base | base | EVM | All |
| Avalanche | avalanche | EVM | All |
| Arbitrum | arbitrum | EVM | All |
| Gnosis | gnosis | EVM | All |
| Moonbeam | moonbeam | EVM | All |
| Linea | linea | EVM | All |
| Hyperliquid | hyperliquid | EVM | All |
| Solana | solana | SVM | Blocks, Gas, Balances, RPC |
| Bitcoin | bitcoin | UTXO | Block Height, Health, RPC |
| Starknet | starknet | Cairo VM | Blocks, Balances, Receipts, RPC |
| Cosmos Hub | cosmoshub | Cosmos SDK | Blocks, Balances, Staking, RPC |
| Osmosis | osmosis | Cosmos SDK | Blocks, Balances, Staking, RPC |
| Axelar | axelar | Cosmos SDK | Blocks, Balances, Staking, RPC |
| Noble | noble | Cosmos SDK | Blocks, Balances, Staking, RPC |
| Agoric | agoric | Cosmos SDK | Blocks, Balances, Staking, RPC |
EVM chains
All 16 EVM chains support the full endpoint set: blocks, gas, balances, token metadata, allowances, portfolio, ENS (Ethereum only), NFTs, smart contract reads, DeFi yields, and JSON-RPC.
Solana
Solana supports block height (slot), gas prices, native/SPL balances, and JSON-RPC passthrough. Token metadata, portfolio, and contract reads are not available.
Bitcoin
Bitcoin supports block height, chain health, and JSON-RPC passthrough only.
Starknet
Starknet (Cairo VM ZK-rollup) supports blocks, transactions and receipts, native and Cairo ERC-20 balances, and JSON-RPC passthrough. Transaction-submission methods (starknet_addDeclareTransaction, starknet_addDeployAccountTransaction, starknet_addInvokeTransaction) are blocked at the gateway. EVM-only endpoints (logs/transfers indexer, ENS, NFTs, ERC-20 metadata, simulateCall, getCode, gas estimation) are not supported.
Cosmos SDK chains
Five Cosmos SDK chains share a common service layer: cosmoshub, osmosis, axelar, noble, and agoric. They support blocks, decoded block transactions, transaction lookups and receipts, native and denom balances, denom supply and metadata, a full staking suite (account, delegations, unbonding delegations, rewards, validators, validator, staking pool), and JSON-RPC/REST passthrough. getStakingRewards is unavailable on noble (no distribution module); EVM-only endpoints are not supported.