# Polkadot Documentation
> Heterogeneous multi-chain protocol (relay chain plus parachains). Polkadot JSON-RPC, Asset Hub JSON-RPC, and Substrate API Sidecar.

- [Quicknode Polkadot RPC Overview](https://www.quicknode.com/docs/polkadot.md): Get started with Polkadot RPC on Quicknode. Access reliable, low-latency blockchain infrastructure with globally distributed endpoints for seamless development.

## Making API Requests
- [Polkadot QuickStart](https://www.quicknode.com/docs/polkadot/quickstart.md): Get started with Polkadot RPC on Quicknode. Follow this QuickStart to get up and running with your own Quicknode endpoint and making your first API request to the Polkadot blockchain.
- [Polkadot API Endpoints](https://www.quicknode.com/docs/polkadot/endpoints.md): Learn how to use Polkadot RPC endpoints, make API requests, and handle responses with Quicknode.
- [Polkadot Endpoint Security](https://www.quicknode.com/docs/polkadot/endpoint-security.md): Learn about endpoint security options and how to set up a Quicknode Polkadot RPC endpoint for optimal performance and security.

## API Reference
- [Polkadot API Overview](https://www.quicknode.com/docs/polkadot/api-overview.md): Overview of supported Polkadot APIs, networks and supported products on Quicknode.

## JSON-RPC API (Relaychain)
- [author_pendingExtrinsics RPC Method](https://www.quicknode.com/docs/polkadot/author_pendingExtrinsics.md): Retrieves a list of pending extrinsics, which can be grouped by the sender if needed.
- [author_submitAndWatchExtrinsic RPC Method](https://www.quicknode.com/docs/polkadot/author_submitAndWatchExtrinsic.md): Submit and subscribe to watch an extrinsic until unsubscribed.
- [author_submitExtrinsic RPC Method](https://www.quicknode.com/docs/polkadot/author_submitExtrinsic.md): Submit a fully formatted extrinsic for block inclusion
- [beefy_getFinalizedHead RPC Method](https://www.quicknode.com/docs/polkadot/beefy_getFinalizedHead.md): Returns hash of the latest BEEFY finalized block as seen by this client.
- [beefy_subscribeJustifications RPC Method](https://www.quicknode.com/docs/polkadot/beefy_subscribeJustifications.md): Returns the latest block finalized by BEEFY, including its justification.
- [beefy_unsubscribeJustifications RPC Method](https://www.quicknode.com/docs/polkadot/beefy_unsubscribeJustifications.md): Allows unsubscribing from updates on the latest BEEFY finalized block and its justification.
- [chain_getBlock RPC Method](https://www.quicknode.com/docs/polkadot/chain_getBlock.md): Retrieve both the header and body components of a relay chain block.
- [chain_getBlockHash RPC Method](https://www.quicknode.com/docs/polkadot/chain_getBlockHash.md): Retrieve the block hash for the specified block.
- [chain_getFinalizedHead RPC Method](https://www.quicknode.com/docs/polkadot/chain_getFinalizedHead.md): Retrieves hash of the last finalized block in the canon chain.
- [chain_getHeader RPC Method](https://www.quicknode.com/docs/polkadot/chain_getHeader.md): Retrieves the header for a specific block.
- [chain_subscribeAllHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_subscribeAllHeads.md): Retrieves the newest header via subscription.
- [chain_subscribeFinalizedHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_subscribeFinalizedHeads.md): Retrieves the best finalized header via subscription.
- [chain_subscribeNewHead RPC Method](https://www.quicknode.com/docs/polkadot/chain_subscribeNewHead.md): Retrieves the latest header via subscription.
- [chain_subscribeNewHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_subscribeNewHeads.md): Retrieves the best header via subscription.
- [chain_subscribeRuntimeVersion RPC Method](https://www.quicknode.com/docs/polkadot/chain_subscribeRuntimeVersion.md): Enables clients to subscribe and receive updates regarding changes to the runtime version.
- [chain_unsubscribeAllHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_unsubscribeAllHeads.md): Allows clients to unsubscribe from receiving updates on the newest headers via subscription.
- [chain_unsubscribeFinalizedHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_unsubscribeFinalizedHeads.md): Allows clients to unsubscribe from receiving updates on the best finalized headers via subscription.
- [chain_unsubscribeNewHead RPC Method](https://www.quicknode.com/docs/polkadot/chain_unsubscribeNewHead.md): Allows clients to unsubscribe from receiving updates on the newest headers via subscription.
- [chain_unsubscribeRuntimeVersion RPC Method](https://www.quicknode.com/docs/polkadot/chain_unsubscribeRuntimeVersion.md): Allows clients to unsubscribe from receiving updates on the runtime version via subscription.
- [chain_unsubscribeNewHeads RPC Method](https://www.quicknode.com/docs/polkadot/chain_unsubscribeNewHeads.md): Allows clients to unsubscribe from receiving updates on the newest block headers via subscription.
- [childstate_getKeys RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getKeys.md): Returns the keys with a specified prefix from child storage. If no prefix is provided, it will return all the keys in the child storage.
- [childstate_getKeysPaged RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getKeysPaged.md): Returns the keys with prefix from a child storage with pagination support.
- [childstate_getStorage RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getStorage.md): Returns a child storage entry at a specific block state.
- [childstate_getStorageEntries RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getStorageEntries.md): Returns child storage entries for multiple keys at a specific block state.
- [childstate_getStorageHash RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getStorageHash.md): Returns the hash of a child storage entry at a block state.
- [childstate_getStorageSize RPC Method](https://www.quicknode.com/docs/polkadot/childstate_getStorageSize.md): Returns the size of a child storage entry at a block state.
- [grandpa_proveFinality RPC Method](https://www.quicknode.com/docs/polkadot/grandpa_proveFinality.md): Get finality proof for a given block number, returning the justification for the last block in the set.
- [grandpa_roundState RPC Method](https://www.quicknode.com/docs/polkadot/grandpa_roundState.md): Returns the state of the current best round state as well as the ongoing background rounds.
- [grandpa_subscribeJustifications RPC Method](https://www.quicknode.com/docs/polkadot/grandpa_subscribeJustifications.md): Allows clients to subscribe to grandpa justifications.
- [grandpa_unsubscribeJustifications RPC Method](https://www.quicknode.com/docs/polkadot/grandpa_unsubscribeJustifications.md): Allows clients to unsubscribe from receiving grandpa justification notifications.
- [rpc_methods RPC Method](https://www.quicknode.com/docs/polkadot/rpc_methods.md): Retrieves the list of RPC methods that are exposed by the node.
- [state_call RPC Method](https://www.quicknode.com/docs/polkadot/state_call.md): Perform a call to a builtin on the chain
- [state_getChildReadProof RPC Method](https://www.quicknode.com/docs/polkadot/state_getChildReadProof.md): Returns proof of storage for child key entries at a specific block state.
- [state_getKeysPaged RPC Method](https://www.quicknode.com/docs/polkadot/state_getKeysPaged.md): Retrieve keys that have a specified prefix, with support for pagination.
- [state_getMetadata RPC Method](https://www.quicknode.com/docs/polkadot/state_getMetadata.md): Returns the runtime metadata.
- [state_getReadProof RPC Method](https://www.quicknode.com/docs/polkadot/state_getReadProof.md): Returns proof of storage entries at a specific block state.
- [state_getRuntimeVersion RPC Method](https://www.quicknode.com/docs/polkadot/state_getRuntimeVersion.md): Retrieves the runtime version.
- [state_getStorage RPC Method](https://www.quicknode.com/docs/polkadot/state_getStorage.md): Retrieves the storage for a key.
- [state_getStorageHash RPC Method](https://www.quicknode.com/docs/polkadot/state_getStorageHash.md): Retrieves the storage hash.
- [state_getStorageSize RPC Method](https://www.quicknode.com/docs/polkadot/state_getStorageSize.md): Retrieves the storage size.
- [state_queryStorageAt RPC Method](https://www.quicknode.com/docs/polkadot/state_queryStorageAt.md): Retrieve storage entries, using the provided key, starting from the specified block hash given as the second parameter.
- [state_subscribeRuntimeVersion RPC Method](https://www.quicknode.com/docs/polkadot/state_subscribeRuntimeVersion.md): Retrieves the runtime version via subscription.
- [state_unsubscribeRuntimeVersion RPC Method](https://www.quicknode.com/docs/polkadot/state_unsubscribeRuntimeVersion.md): Allows clients to unsubscribe from receiving runtime version updates.
- [state_unsubscribeStorage RPC Method](https://www.quicknode.com/docs/polkadot/state_unsubscribeStorage.md): Allows clients to unsubscribe from receiving storage updates.
- [sync_state_genSyncSpec RPC Method](https://www.quicknode.com/docs/polkadot/sync_state_genSyncSpec.md): Returns the json-serialized chain spec running the node, with a sync state.
- [system_chain RPC Method](https://www.quicknode.com/docs/polkadot/system_chain.md): Retrieves the chain.
- [system_chainType RPC Method](https://www.quicknode.com/docs/polkadot/system_chainType.md): Retrieves the chain type.
- [system_health RPC Method](https://www.quicknode.com/docs/polkadot/system_health.md): Return health status of the node.
- [system_name RPC Method](https://www.quicknode.com/docs/polkadot/system_name.md): Retrieves the node name.
- [system_nodeRoles RPC Method](https://www.quicknode.com/docs/polkadot/system_nodeRoles.md): Returns the roles the node is running as.
- [system_properties RPC Method](https://www.quicknode.com/docs/polkadot/system_properties.md): Get a custom set of properties as a JSON object, defined in the chain spec.
- [system_syncState RPC Method](https://www.quicknode.com/docs/polkadot/system_syncState.md): Returns the state of the syncing of the node.
- [system_version RPC Method](https://www.quicknode.com/docs/polkadot/system_version.md): Retrieves the version of the node.
- [unsubscribe_newHead RPC Method](https://www.quicknode.com/docs/polkadot/unsubscribe_newHead.md): Allows clients to unsubscribe from receiving updates on new block headers.

## Substrate API Sidecar (AssetHub + Relaychain)
- [/accounts/{accountId}/asset-approvals REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-asset-approvals.md): Returns information about an account's asset approval transaction. It is required to pass in a delegate and an assetId as query parameters
- [/accounts/{accountId}/asset-balances REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-asset-balances.md): Get an array of asset-balances for an account.
- [/accounts/{accountId}/balance-info REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-balance-info.md): Returns information about an account's balance. Replaces `/balance/{address}` from versions < v1.0.0.
- [/accounts/{accountId}/convert REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-convert.md): Returns the SS58 prefix, the network address format, the SS58 address, and the AccountId that was given as input parameter, the scheme that was used and if it is a public key or not (boolean).
- [/accounts/{accountId}/pool-asset-balances REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-pool-asset-balances.md): Returns information about an account's pool-asset-balances. This is specific to the pool assets pallet for parachains. If no `assets` query parameter is provided, all pool-asset-balances for the given account will be returned.
- [/accounts/{accountId}/pool-asset-approvals REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-pool-asset-approvals.md): Get an asset approval for an account.
- [/accounts/{accountId}/proxy-info REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-proxy-info.md): Returns information about a proxy account. This will include delegated accounts and deposits held.
- [/accounts/{accountId}/staking-info REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-staking-info.md): Returns information about a Stash account's staking activity.
- [/accounts/{accountId}/staking-payouts REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-staking-payouts.md): Returns payout information for the last specified eras. If specifying both the depth and era query params, this endpoint will return information for (era - depth) through era. (i.e. if depth=5 and era=20 information will be returned for eras 16 through 20). N.B. You cannot query eras less then `current_era - HISTORY_DEPTH`. N.B. The `nominator*` fields correspond to the address being queried, even if it is a validator's _Stash_ address. This is because a validator is technically nominating itself.
- [/accounts/{accountId}/vesting-info REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-accountId-vesting-info.md): Returns the vesting schedule for an account.
- [/accounts/{address}/validate REST API Endpoint](https://www.quicknode.com/docs/polkadot/accounts-address-validate.md): Returns whether the given address is valid ss58 format, the ss58 prefix if the address has one, the network address format, and what the account ID is for this address.
- [/blocks REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks.md): Given a range query parameter return an array of all the blocks within that range.
- [/blocks/{blockId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-blockId.md): Returns a single block. BlockId can either be a block hash or a block height.
- [/blocks/{blockId}/header REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-blockId-header.md): Get a block's header by its height or hash.
- [/blocks/{blockId}/extrinsics/{extrinsicIndex} REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-blockId-extrinsics-extrinsicIndex.md): Get an extrinsic by its extrinsicIndex and block height or hash. The pair blockId, extrinsicIndex is sometimes referred to as a Timepoint.
- [/blocks/head REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-head.md): Returns the most recently finalized block.
- [/blocks/head/header REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-head-header.md): Returns the most recently finalized block's header.
- [/blocks/{blockId}/extrinsics-raw REST API Endpoint](https://www.quicknode.com/docs/polkadot/blocks-blockId-extrinsics-raw.md): Returns a block & its extrinsics as hex values. BlockId can either be a block hash or a block height.
- [/contracts/ink/{address}/query REST API Endpoint](https://www.quicknode.com/docs/polkadot/contracts-ink-address-query.md): Query an !Ink contract with a given message.
- [/node/network REST API Endpoint](https://www.quicknode.com/docs/polkadot/node-network.md): Returns network related information of the node.
- [/node/transaction-pool REST API Endpoint](https://www.quicknode.com/docs/polkadot/node-transaction-pool.md): Get pending extrinsics from the Substrate node.
- [/node/version REST API Endpoint](https://www.quicknode.com/docs/polkadot/node-version.md): Returns versioning information of the node.
- [/pallets/nomination-pools/info REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-nomination-pools-info.md): Returns information and metadata for nomination pools including pool counters and limits.
- [/pallets/nomination-pools/{poolId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-nomination-pools-poolId.md): Get information and metadata associated with a nomination pool.
- [/pallets/on-going-referenda REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-on-going-referenda.md): Returns information associated with on-going referenda which includes the referendum's enactment, submitted and deciding fields.
- [/pallets/{palletId}/consts REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-consts.md): Get a list of constants for a pallet.
- [/pallets/{palletId}/consts/{constantItemId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-consts-constantItemId.md): Returns the value stored under the constantItemId.
- [/pallets/{palletId}/dispatchables REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-dispatchables.md): Returns a list of dispatchable item metadata for distpachable items of the specified palletId.
- [/pallets/{palletId}/dispatchables/{dispatchableItemId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-dispatchables-dispatchableItemId.md): Get the value of a dispatchable item.
- [/pallets/{palletId}/errors REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-errors.md): Returns a list of error item metadata for error items of the specified palletId.
- [/pallets/{palletId}/errors/{errorItemId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-errors-errorItemId.md): Returns the value stored under the errorItemId.
- [/pallets/{palletId}/events REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-events.md): Get a list of events for a pallet.
- [/pallets/{palletId}/events/{eventItemId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-events-eventItemId.md): Get the value of an event item.
- [/runtime/metadata REST API Endpoint](https://www.quicknode.com/docs/polkadot/runtime-metadata.md): Returns the runtime metadata as a JSON object.
- [/runtime/metadata/{metadataVersion} REST API Endpoint](https://www.quicknode.com/docs/polkadot/runtime-metadata-metadataVersion.md): Get the requested version of runtime metadata in decoded, JSON form.
- [/runtime/metadata/versions REST API Endpoint](https://www.quicknode.com/docs/polkadot/runtime-metadata-versions.md): Get the available versions of runtime metadata.
- [/runtime/code REST API Endpoint](https://www.quicknode.com/docs/polkadot/runtime-code.md): Get the runtime wasm blob.
- [/runtime/spec REST API Endpoint](https://www.quicknode.com/docs/polkadot/runtime-spec.md): Get version information of the Substrate runtime.
- [/pallets/{palletId}/storage REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-storage.md): Returns a list of storage item metadata for storage items of the specified palletId.
- [/pallets/{palletId}/storage/{storageItemId} REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-palletId-storage-storageItemId.md): Returns the value stored under the storageItemId. If it is a map, query param key1 is required. If the storage item is double map query params key1 and key2 are required.
- [/pallets/staking/progress REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-staking-progress.md): Returns information on the progress of key components of the staking system and estimates of future points of interest.
- [/pallets/staking/validators REST API Endpoint](https://www.quicknode.com/docs/polkadot/pallets-staking-validators.md): Returns a list of all validators addresses and their corresponding status which can be either active or waiting. It will also return a list of active validators that will not be part of the next era for staking. They will be under the key 'validatorsToBeChilled'. It's important to note, that addresses can be present in both the 'validators' key, and 'validatorsToBeChilled'.
- [/transaction REST API Endpoint](https://www.quicknode.com/docs/polkadot/transaction.md): Submit a transaction to the node's transaction pool.
- [/transaction/dry-run REST API Endpoint](https://www.quicknode.com/docs/polkadot/transaction-dry-run.md): Use the dryrun call to practice submission of a transaction.
- [/transaction/fee-estimate REST API Endpoint](https://www.quicknode.com/docs/polkadot/transaction-fee-estimate.md): Send a serialized transaction and receive back a naive fee estimate. The partialFee does not include any tips that you may add to increase a transaction's priority.
- [/transaction/material REST API Endpoint](https://www.quicknode.com/docs/polkadot/transaction-material.md): Returns the material that is universal to constructing any signed transaction offline.
- [/transaction/material/{metadataVersion} REST API Endpoint](https://www.quicknode.com/docs/polkadot/transaction-material-metadataVersion.md): Returns all the materials necessary for constructing any signed transactions offline.

## Asset Hub JSON-RPC API (Primary Network)
- [author_pendingExtrinsics RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/author_pendingExtrinsics.md): Returns all pending extrinsics, potentially grouped by sender.
- [author_submitAndWatchExtrinsic RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/author_submitAndWatchExtrinsic.md): Submit and subscribe to watch an extrinsic until unsubscribed.
- [author_submitExtrinsic RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/author_submitExtrinsic.md): Submit a fully formatted extrinsic for block inclusion.
- [chain_getBlock RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_getBlock.md): Get header and body of a relay chain block.
- [chain_getBlockHash RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_getBlockHash.md): Get the block hash for a specific block.
- [chain_getFinalizedHead RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_getFinalizedHead.md): Get hash of the last finalized block in the canon chain.
- [chain_getHeader RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_getHeader.md): Get header of a relay chain block.
- [chain_subscribeAllHeads RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_subscribeAllHeads.md): Retrieves the best header via subscription.
- [chain_subscribeFinalizedHeads RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_subscribeFinalizedHeads.md): Retrieves the best finalized header via subscription.
- [chain_subscribeNewHeads RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/chain_subscribeNewHeads.md): Retrieves the best header via subscription.
- [childstate_getKeys RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getKeys.md): Returns the keys with prefix from a child storage, leave empty to get all the keys.
- [childstate_getKeysPaged RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getKeysPaged.md): Returns the keys with prefix from a child storage with pagination support.
- [childstate_getStorage RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getStorage.md): Returns a child storage entry at a specific key.
- [childstate_getStorageEntries RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getStorageEntries.md): Returns child storage entries at a specific key.
- [childstate_getStorageHash RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getStorageHash.md): Returns the hash of a child storage entry at a specific key.
- [childstate_getStorageSize RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/childstate_getStorageSize.md): Returns the size of a child storage entry at a specific key.
- [payment_queryFeeDetails RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/payment_queryFeeDetails.md): Query the detailed fee of a given encoded extrinsic.
- [payment_queryInfo RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/payment_queryInfo.md): Query the fee of a given encoded extrinsic.
- [rpc_methods RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/rpc_methods.md): Returns a list of RPC methods that are exposed by the node.
- [state_call RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_call.md): Call a contract at a block's state.
- [state_getChildReadProof RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getChildReadProof.md): Returns proof of storage for child state entries at a specific key.
- [state_getKeys RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getKeys.md): Returns the keys with prefix, leave empty to get all the keys.
- [state_getKeysPaged RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getKeysPaged.md): Returns the keys with prefix with pagination support.
- [state_getMetadata RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getMetadata.md): Returns the runtime metadata.
- [state_getReadProof RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getReadProof.md): Returns proof of storage entries at a specific key.
- [state_getRuntimeVersion RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getRuntimeVersion.md): Get the runtime version.
- [state_getStorage RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getStorage.md): Returns a storage entry at a specific key.
- [state_getStorageHash RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getStorageHash.md): Returns the hash of a storage entry at a specific key.
- [state_getStorageSize RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_getStorageSize.md): Returns the size of a storage entry at a specific key.
- [state_queryStorageAt RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_queryStorageAt.md): Query storage entries at a specific block.
- [state_subscribeRuntimeVersion RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_subscribeRuntimeVersion.md): Subscribe to runtime version changes.
- [state_subscribeStorage RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/state_subscribeStorage.md): Subscribe to storage changes.
- [system_accountNextIndex RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_accountNextIndex.md): Returns the next valid index (aka nonce) for given account.
- [system_chain RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_chain.md): Get the chain's name.
- [system_chainType RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_chainType.md): Get the chain's type.
- [system_dryRun RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_dryRun.md): Dry run an extrinsic at a given block.
- [system_health RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_health.md): Return health status of the node.
- [system_name RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_name.md): Get the node's implementation name.
- [system_nodeRoles RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_nodeRoles.md): Returns the roles the node is running as.
- [system_properties RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_properties.md): Get a custom set of properties as a JSON object, defined in the chain spec.
- [system_syncState RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_syncState.md): Returns the state of the syncing of the node.
- [system_version RPC Method - AssetHub](https://www.quicknode.com/docs/polkadot/asset-hub/system_version.md): Get the node's implementation version.

## Marketplace
- [Supported Marketplace Add-Ons for Polkadot](https://www.quicknode.com/docs/polkadot/marketplace-addons.md): Learn about the Quicknode Marketplace and how to utilize Marketplace Add-ons on Polkadot.