> ## Documentation Index
> Fetch the complete documentation index at: https://docs.optimism.io/llms.txt
> Use this file to discover all available pages before exploring further.
# op-node JSON-RPC API
> Complete reference for op-node RPC methods including rollup-specific functionality.
`op-node` implements rollup-specific functionality as the Consensus Layer, similar to an L1 beacon node. It provides RPC methods for querying rollup state, managing peers, and controlling sequencer operations.
Use [`eth_gasPrice`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_gasprice) instead of `rollup_gasPrices` for the L2 gas price.
For the L1 gas price, you can call the [`GasPriceOracle`'s `l1BaseFee` function](https://explorer.optimism.io/address/0x420000000000000000000000000000000000000F#readProxyContract#F11).
If you want to estimate the cost of a transaction, you can [use the SDK](/app-developers/tutorials/transactions/sdk-estimate-costs).
## Making RPC Requests
The following examples show you how to make requests with [`curl`](https://curl.se/) and [`cast`](https://book.getfoundry.sh/cast/).
Protip: piping these commands into [`jq`](https://jqlang.github.io/jq/) will give you nicely formatted JSON responses.
`$ cast rpc optimism_syncStatus --rpc-url http://localhost:9545 | jq`
## optimism Namespace
Optimism-specific rollup methods for querying chain state and configuration.
### optimism\_outputAtBlock
Get the output root at a specific block. This method is documented in [the specifications](https://specs.optimism.io/protocol/rollup-node.html?utm_source=op-docs\&utm_medium=docs#output-method-api).
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"optimism_outputAtBlock","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc optimism_outputAtBlock --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc":"2.0",
"id":1,
"result":[
"0x0000000000000000000000000000000000000000000000000000000000000000",
"0xabe711e34c1387c8c56d0def8ce77e454d6a0bfd26cef2396626202238442421"
]
}
```
### optimism\_syncStatus
Get the synchronization status of the rollup node. This method provides detailed information about L1 and L2 block processing states.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"optimism_syncStatus","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc optimism_syncStatus --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"current_l1": {
"hash": "0xff3b3253058411b727ac662f4c9ae1698918179e02ecebd304beb1a1ae8fc4fd",
"number": 4427350,
"parentHash": "0xb26586390c3f04678706dde13abfb5c6e6bb545e59c22774e651db224b16cd48",
"timestamp": 1696478784
},
"current_l1_finalized": {
"hash": "0x7157f91b8ae21ef869c604e5b268e392de5aa69a9f44466b9b0f838d56426541",
"number": 4706784,
"parentHash": "0x1ac2612a500b9facd650950b8755d97cf2470818da2d88552dea7cd563e86a17",
"timestamp": 1700160084
},
"head_l1": {
"hash": "0x6110a8e6ed4c4aaab20477a3eac81bf99e505bf6370cd4d2e3c6d34aa5f4059a",
"number": 4706863,
"parentHash": "0xee8a9cba5d93481f11145c24890fd8f536384f3c3c043f40006650538fbdcb56",
"timestamp": 1700161272
},
"safe_l1": {
"hash": "0x8407c9968ce278ab435eeaced18ba8f2f94670ad9d3bdd170560932cf46e2804",
"number": 4706811,
"parentHash": "0x6593cccab3e772776418ff691f6e4e75597af18505373522480fdd97219c06ef",
"timestamp": 1700160480
},
"finalized_l1": {
"hash": "0x7157f91b8ae21ef869c604e5b268e392de5aa69a9f44466b9b0f838d56426541",
"number": 4706784,
"parentHash": "0x1ac2612a500b9facd650950b8755d97cf2470818da2d88552dea7cd563e86a17",
"timestamp": 1700160084
},
"unsafe_l2": {
"hash": "0x9a3b2edab72150de252d45cabe2f1ac57d48ddd52bb891831ffed00e89408fe4",
"number": 2338094,
"parentHash": "0x935b94ec0bac0e63c67a870b1a97d79e3fa84dda86d31996516cb2f940753f53",
"timestamp": 1696478728,
"l1origin": {
"hash": "0x38731e0a6eeb40091f0c4a00650e911c57d054aaeb5b158f55cd5705fa6a3ebf",
"number": 4427339
},
"sequenceNumber": 3
},
"safe_l2": {
"hash": "0x9a3b2edab72150de252d45cabe2f1ac57d48ddd52bb891831ffed00e89408fe4",
"number": 2338094,
"parentHash": "0x935b94ec0bac0e63c67a870b1a97d79e3fa84dda86d31996516cb2f940753f53",
"timestamp": 1696478728,
"l1origin": {
"hash": "0x38731e0a6eeb40091f0c4a00650e911c57d054aaeb5b158f55cd5705fa6a3ebf",
"number": 4427339
},
"sequenceNumber": 3
},
"finalized_l2": {
"hash": "0x285b03afb46faad747be1ca7ab6ef50ef0ff1fe04e4eeabafc54f129d180fad2",
"number": 2337942,
"parentHash": "0x7e7f36cba1fd1ccdcdaa81577a1732776a01c0108ab5f98986cf997724eb48ac",
"timestamp": 1696478424,
"l1origin": {
"hash": "0x983309dadf7e0ab8447f3050f2a85b179e9acde1cd884f883fb331908c356412",
"number": 4427314
},
"sequenceNumber": 7
},
"pending_safe_l2": {
"hash": "0x9a3b2edab72150de252d45cabe2f1ac57d48ddd52bb891831ffed00e89408fe4",
"number": 2338094,
"parentHash": "0x935b94ec0bac0e63c67a870b1a97d79e3fa84dda86d31996516cb2f940753f53",
"timestamp": 1696478728,
"l1origin": {
"hash": "0x38731e0a6eeb40091f0c4a00650e911c57d054aaeb5b158f55cd5705fa6a3ebf",
"number": 4427339
},
"sequenceNumber": 3
},
"queued_unsafe_l2": {
"hash": "0x3af253f5b993f58fffdd5e594b3f53f5b7b254cdc18f4bdb13ea7331149942db",
"number": 4054795,
"parentHash": "0x284b7dc92bac97be8ec3b2cf548e75208eb288704de381f2557938ecdf86539d",
"timestamp": 1699912130,
"l1origin": {
"hash": "0x1490a63c372090a0331e05e63ec6a7a6e84835f91776306531f28b4217394d76",
"number": 4688196
},
"sequenceNumber": 2
},
"engine_sync_target": {
"hash": "0x9a3b2edab72150de252d45cabe2f1ac57d48ddd52bb891831ffed00e89408fe4",
"number": 2338094,
"parentHash": "0x935b94ec0bac0e63c67a870b1a97d79e3fa84dda86d31996516cb2f940753f53",
"timestamp": 1696478728,
"l1origin": {
"hash": "0x38731e0a6eeb40091f0c4a00650e911c57d054aaeb5b158f55cd5705fa6a3ebf",
"number": 4427339
},
"sequenceNumber": 3
}
}
```
### optimism\_rollupConfig
Get the rollup configuration parameters.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"optimism_rollupConfig","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc optimism_rollupConfig --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"genesis": {
"l1": {
"hash": "0x48f520cf4ddaf34c8336e6e490632ea3cf1e5e93b0b2bc6e917557e31845371b",
"number": 4071408
},
"l2": {
"hash": "0x102de6ffb001480cc9b8b548fd05c34cd4f46ae4aa91759393db90ea0409887d",
"number": 0
},
"l2_time": 1691802540,
"system_config": {
"batcherAddr": "0x8f23bb38f531600e5d8fddaaec41f13fab46e98c",
"overhead": "0x00000000000000000000000000000000000000000000000000000000000000bc",
"scalar": "0x00000000000000000000000000000000000000000000000000000000000a6fe0",
"gasLimit": 30000000
}
},
"block_time": 2,
"max_sequencer_drift": 600,
"seq_window_size": 3600,
"channel_timeout": 300,
"l1_chain_id": 11155111,
"l2_chain_id": 11155420,
"regolith_time": 0,
"canyon_time": 1699981200,
"batch_inbox_address": "0xff00000000000000000000000000000011155420",
"deposit_contract_address": "0x16fc5058f25648194471939df75cf27a2fdc48bc",
"l1_system_config_address": "0x034edd2a225f7f429a63e0f1d2084b9e0a93b538"
}
```
### optimism\_version
Get the software version of the op-node.
At the moment, building from source will not give you the correct version, but our docker images will.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"optimism_version","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc optimism_version --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc":"2.0",
"id":1,
"result":"v0.0.0-"
}
```
## opp2p Namespace
The `opp2p` namespace handles peer-to-peer networking interactions, allowing you to manage peer connections, discovery, and network policies.
### opp2p\_self
Returns your node's peer information including peer ID, addresses, and network configuration.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_self","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_self --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"peerID": "16Uiu2HAm2y6DXp6THWHCyquczNUh8gVAm4spo6hjP3Ns1dGRiAdE",
"nodeID": "75a52a90fe5f972171fefce2399ca5a73191c654e7c7ddfdd71edf4fca6697f0",
"userAgent": "",
"protocolVersion": "",
"ENR": "enr:-J-4QFOtI_hDBa_kilrQcg4iTJt9VMAuDLCbgAAKMa--WfxoPml1xDYxypUG7IsWga83FOlvr78LG3oH8CfzRzUmsDyGAYvKqIZ2gmlkgnY0gmlwhGxAaceHb3BzdGFja4Xc76gFAIlzZWNwMjU2azGhAnAON-FvpiWY2iG_LXJDYosknGyikaajPDd1cQARsVnBg3RjcIIkBoN1ZHCC0Vs",
"addresses": [
"/ip4/127.0.0.1/tcp/9222/p2p/16Uiu2HAm2y6DXp6THWHCyquczNUh8gVAm4spo6hjP3Ns1dGRiAdE",
"/ip4/192.168.1.71/tcp/9222/p2p/16Uiu2HAm2y6DXp6THWHCyquczNUh8gVAm4spo6hjP3Ns1dGRiAdE",
"/ip4/108.64.105.199/tcp/9222/p2p/16Uiu2HAm2y6DXp6THWHCyquczNUh8gVAm4spo6hjP3Ns1dGRiAdE"
],
"protocols": null,
"connectedness": 0,
"direction": 0,
"protected": false,
"chainID": 0,
"latency": 0,
"gossipBlocks": true,
"scores": {
"gossip": {
"total": 0,
"blocks": {
"timeInMesh": 0,
"firstMessageDeliveries": 0,
"meshMessageDeliveries": 0,
"invalidMessageDeliveries": 0
},
"IPColocationFactor": 0,
"behavioralPenalty": 0
},
"reqResp": {
"validResponses": 0,
"errorResponses": 0,
"rejectedPayloads": 0
}
}
}
}
```
### opp2p\_peers
Returns a list of your node's peers with detailed connection information.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_peers","params":[true],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_peers true --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"totalConnected": 20,
"peers": {
"16Uiu2HAkvNYscHu4V1uj6fVWkwrAMCRsqXDSq4mUbhpGq4LttYsC": {
"peerID": "16Uiu2HAkvNYscHu4V1uj6fVWkwrAMCRsqXDSq4mUbhpGq4LttYsC",
"nodeID": "d693c5b58424016c0c38ec5539c272c754cb6b8007b322e0ecf16a4ee13f96fb",
"userAgent": "optimism",
"protocolVersion": "",
"ENR": "",
"addresses": [
"/ip4/20.249.62.215/tcp/9222/p2p/16Uiu2HAkvNYscHu4V1uj6fVWkwrAMCRsqXDSq4mUbhpGq4LttYsC"
],
"protocols": [
"/ipfs/ping/1.0.0",
"/meshsub/1.0.0",
"/meshsub/1.1.0",
"/opstack/req/payload_by_number/11155420/0",
"/floodsub/1.0.0",
"/ipfs/id/1.0.0",
"/ipfs/id/push/1.0.0"
],
"connectedness": 1,
"direction": 1,
"protected": false,
"chainID": 0,
"latency": 0,
"gossipBlocks": true,
"scores": {
"gossip": {
"total": -5.04,
"blocks": {
"timeInMesh": 0,
"firstMessageDeliveries": 0,
"meshMessageDeliveries": 0,
"invalidMessageDeliveries": 0
},
"IPColocationFactor": 0,
"behavioralPenalty": 0
},
"reqResp": {
"validResponses": 0,
"errorResponses": 0,
"rejectedPayloads": 0
}
}
}
},
"bannedPeers": [],
"bannedIPS": [],
"bannedSubnets": []
}
}
```
### opp2p\_peerStats
Returns aggregate statistics about your peer connections.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_peerStats","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_peerStats --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"connected": 20,
"table": 94,
"blocksTopic": 20,
"blocksTopicV2": 18,
"banned": 0,
"known": 71
}
}
```
### opp2p\_discoveryTable
Returns your peer discovery table containing node records (ENRs) of discovered peers.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_discoveryTable","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_discoveryTable --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"enr:-J24QGC_SzoGG4EqyvO_082paQOwhvECeWGT-kaenrHdE2_iLTLeGmH-IOVpqEjC0L-yWmkI-c7598VaCjHQRNWn1CyGAYsqDgrFgmlkgnY0gmlwhNgp3WeHb3BzdGFja4OFQgCJc2VjcDI1NmsxoQPiq20PNZYzyvpEifcGVrOXHfM94JeWSgDL07I2hSl0d4N0Y3CCJAaDdWRwgiQG",
"enr:-J24QKvt2ThBM8-FPeHfAmpoaVLdfVD2cw1cRpNuwmvH_bQtQ1dqrrZw9FqiMbXbFRQf9IvjrlKSFLodbsRALIFATICGAYuQClJigmlkgnY0gmlwhKI3ZuaHb3BzdGFja4O6BACJc2VjcDI1NmsxoQLQRz2CH95qQd6vmF5saV-WOoTZobNfSt-FUdVa7R35nYN0Y3CCIyuDdWRwgiMr"
]
}
```
### opp2p\_blockPeer
Blocks a peer by peer ID, preventing future connections.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_blockPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_blockPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_unblockPeer
Unblocks a previously blocked peer.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_unblockPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_unblockPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_listBlockedPeers
Returns a list of blocked peer IDs.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_listBlockedPeers","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_listBlockedPeers --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"16Uiu2HAmV3PueiaHj7Rg2bs3mrRUo2RVhjXRMpH67k9iZquDGQ8v"
]
}
```
### opp2p\_blockAddr
Blocks connections from a specific IP address.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_blockAddr","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_blockAddr --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_unblockAddr
Unblocks a previously blocked IP address.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_unblockAddr","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_unblockAddr --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_listBlockedAddrs
Returns a list of blocked IP addresses.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_listBlockedAddrs","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_listBlockedAddrs --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"2607:f8b0:4002:c0c::65"
]
}
```
### opp2p\_blockSubnet
Blocks connections from a specific subnet (CIDR notation).
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_blockSubnet","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_blockSubnet --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_unblockSubnet
Unblocks a previously blocked subnet.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_unblockSubnet","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_unblockSubnet --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_listBlockedSubnets
Returns a list of blocked subnets.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_listBlockedSubnets","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_listBlockedSubnets --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": []
}
```
### opp2p\_protectPeer
Protects a peer from being pruned from the connection pool.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_protectPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_protectPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_unprotectPeer
Removes protection from a peer, allowing it to be pruned if necessary.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_unprotectPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_unprotectPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_connectPeer
Initiates a connection to a peer using its multiaddress.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_connectPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_connectPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### opp2p\_disconnectPeer
Disconnects from a specific peer.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"opp2p_disconnectPeer","params":[""],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc opp2p_disconnectPeer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
## admin Namespace
Administrative methods for controlling sequencer operations and the derivation pipeline.
### admin\_resetDerivationPipeline
Resets the derivation pipeline, forcing it to re-derive L2 blocks from L1 data.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"admin_resetDerivationPipeline","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc admin_resetDerivationPipeline --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### admin\_startSequencer
Starts the sequencer if it was previously stopped. This allows the node to begin producing new blocks.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"admin_startSequencer","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc admin_startSequencer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### admin\_stopSequencer
Stops the sequencer, preventing it from producing new blocks. The node will continue to sync from other sequencers.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"admin_stopSequencer","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc admin_stopSequencer --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": null
}
```
### admin\_sequencerActive
Returns whether the sequencer is currently active and producing blocks.
```sh theme={null}
curl -X POST -H "Content-Type: application/json" --data \
'{"jsonrpc":"2.0","method":"admin_sequencerActive","params":[],"id":1}' \
http://localhost:9545
```
```sh theme={null}
cast rpc admin_sequencerActive --rpc-url http://localhost:9545
```
Sample success output:
```json theme={null}
{
"jsonrpc": "2.0",
"id": 1,
"result": true
}
```