You can access Polkadot via Substrate RPC API. Learn more: Substrate RPC API reference
The following methods are allowed in the Native Access API:
chain
childstate
- childstate_getKeys
- childstate_getKeysPaged
- childstate_getStorage
- childstate_getStorageEntries
- childstate_getStorageHash
- childstate_getStorageSize
contracts
- contracts_call
- contracts_getStorage
- contracts_instantiate
- contracts_rentProjection
- contracts_upload_code
GrandpaApi
mmr
offchain
payment
rpc
state
- state_call
- state_getChildKeys
- state_getChildReadProof
- state_getChildStorage
- state_getChildStorageHash
- state_getChildStorageSize
- state_getKeys
- state_getKeysPaged
- state_getMetadata
- state_getPairs
- state_getReadProof
- state_getRuntimeVersion
- state_getStorage
- state_getStorageHash
- state_getStorageSize
- state_queryStorage
- state_queryStorageAt
- state_subscribeRuntimeVersion
- state_subscribeStorage
- state_traceBlock
- state_trieMigrationStatus
syncstate
system
- system_addReservedPeer
- system_chain
- system_chainType
- system_dryRun
- system_health
- system_localListenAddresses
- system_localPeerId
- system_name
- system_networkState
- system_nodeRoles
- system_peers
- system_properties
- system_removeReservedPeer
- system_reservedPeers
- system_resetLogFilter
- system_syncState
- system_version