Parameters

This method does not accept any parameters

Returns

result

object

An object describing the node's current head and the data resources it can serve

head

object

The current canonical head reported by the node

number

string

The head block number in hexadecimal format

hash

string

The head block hash

state

object

Availability of historical state (used by state-reading methods such as eth_getBalance, eth_getCode, and eth_getStorageAt)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

tx

object

Availability of the transaction lookup index (used by methods such as eth_getTransactionByHash and eth_getTransactionReceipt)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

logs

object

Availability of the log search index (used by eth_getLogs)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

receipts

object

Availability of historical receipts (used by methods such as eth_getBlockReceipts and eth_getTransactionReceipt)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

blocks

object

Availability of historical blocks (used by methods such as eth_getBlockByNumber and eth_getBlockByHash)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

stateproofs

object

Availability of historical state proofs (used by eth_getProof)

disabled

boolean

Whether the resource is disabled entirely

oldestBlock

string

The oldest block for which the resource is available, in hexadecimal format

deleteStrategy

object

Describes how data is removed over time. Present only for resources with sliding-window retention

type

string

The deletion strategy type, e.g. window

retentionBlocks

string

The number of most recent blocks retained, in hexadecimal format

Request

1
curl -X POST "https://docs-demo.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_capabilities",
6
  "params": [],
7
  "id": 1
8
}'

1
curl -X POST "https://docs-demo.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_capabilities",
6
  "params": [],
7
  "id": 1
8
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.quiknode.pro/");
5
    const response = await provider.send("eth_capabilities", []);
6
    console.log(response);
7
}
8

9
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.quiknode.pro/");
5
    const response = await provider.send("eth_capabilities", []);
6
    console.log(response);
7
}
8

9
main();

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "eth_capabilities",
7
    "params": [],
8
    "id": "1"
9
}
10

11
response = client.send(payload.to_json)
12
puts response

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "eth_capabilities",
7
    "params": [],
8
    "id": "1"
9
}
10

11
response = client.send(payload.to_json)
12
puts response

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.quiknode.pro/'))
3
response = w3.provider.make_request("eth_capabilities", [])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.quiknode.pro/'))
3
response = w3.provider.make_request("eth_capabilities", [])
4
print(response)

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_capabilities',
10
        params: []
11
    })
12

13
    console.log(result)
14
}
15

16
main()

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_capabilities',
10
        params: []
11
    })
12

13
    console.log(result)
14
}
15

16
main()

1
import { QuicknodeSdk } from '@quicknode/sdk'
2

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'eth_capabilities',
7
  [],
8
  undefined,
9
  'https://docs-demo.quiknode.pro/'
10
)
11

12
console.log(result)

1
import { QuicknodeSdk } from '@quicknode/sdk'
2

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'eth_capabilities',
7
  [],
8
  undefined,
9
  'https://docs-demo.quiknode.pro/'
10
)
11

12
console.log(result)

1
import asyncio
2
from quicknode_sdk import QuicknodeSdk, SdkFullConfig
3

4
async def main():
5
    qn = QuicknodeSdk(SdkFullConfig(api_key=None))
6
    result = await qn.rpc.call(
7
        "eth_capabilities",
8
        [],
9
        endpoint_url="https://docs-demo.quiknode.pro/",
10
    )
11
    print(result)
12

13
asyncio.run(main())

1
import asyncio
2
from quicknode_sdk import QuicknodeSdk, SdkFullConfig
3

4
async def main():
5
    qn = QuicknodeSdk(SdkFullConfig(api_key=None))
6
    result = await qn.rpc.call(
7
        "eth_capabilities",
8
        [],
9
        endpoint_url="https://docs-demo.quiknode.pro/",
10
    )
11
    print(result)
12

13
asyncio.run(main())

1
require "quicknode_sdk"
2

3
qn = QuicknodeSdk::SDK.from_config(api_key: nil)
4

5
result = qn.rpc.call(
6
  method: "eth_capabilities",
7
  params: [],
8
  endpoint_url: "https://docs-demo.quiknode.pro/"
9
)
10

11
puts result

1
require "quicknode_sdk"
2

3
qn = QuicknodeSdk::SDK.from_config(api_key: nil)
4

5
result = qn.rpc.call(
6
  method: "eth_capabilities",
7
  params: [],
8
  endpoint_url: "https://docs-demo.quiknode.pro/"
9
)
10

11
puts result

1
use quicknode_sdk::{QuicknodeSdk, SdkFullConfig};
2

3
#[tokio::main]
4
async fn main() -> Result<(), Box<dyn std::error::Error>> {
5
    let qn = QuicknodeSdk::new(&SdkFullConfig::keyless())?;
6
    let result = qn
7
        .rpc
8
        .call(
9
            "eth_capabilities",
10
            Some(serde_json::json!([])),
11
            None,
12
            Some("https://docs-demo.quiknode.pro/".into()),
13
        )
14
        .await?;
15

16
    println!("{result}");
17
    Ok(())
18
}

1
use quicknode_sdk::{QuicknodeSdk, SdkFullConfig};
2

3
#[tokio::main]
4
async fn main() -> Result<(), Box<dyn std::error::Error>> {
5
    let qn = QuicknodeSdk::new(&SdkFullConfig::keyless())?;
6
    let result = qn
7
        .rpc
8
        .call(
9
            "eth_capabilities",
10
            Some(serde_json::json!([])),
11
            None,
12
            Some("https://docs-demo.quiknode.pro/".into()),
13
        )
14
        .await?;
15

16
    println!("{result}");
17
    Ok(())
18
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_capabilities',
4
    params: [],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_capabilities',
4
    params: [],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
import requests
2
import json
3

4
url = "https://docs-demo.quiknode.pro/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "eth_capabilities",
9
  "params": [],
10
  "id": 1
11
})
12
headers = {
13
  'Content-Type': 'application/json'
14
}
15

16
response = requests.request("POST", url, headers=headers, data=payload)
17

18
print(response.text)

1
import requests
2
import json
3

4
url = "https://docs-demo.quiknode.pro/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "eth_capabilities",
9
  "params": [],
10
  "id": 1
11
})
12
headers = {
13
  'Content-Type': 'application/json'
14
}
15

16
response = requests.request("POST", url, headers=headers, data=payload)
17

18
print(response.text)

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_capabilities",
11
  params: []
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_capabilities",
11
  params: []
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

Response

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "head": {
6
      "number": "0x1850b9b",
7
      "hash": "0xd8b72f903567c6c25c6d0c690db7a320d61a4987f9c7a2a435061e5439e2817c"
8
    },
9
    "state": {
10
      "disabled": false,
11
      "oldestBlock": "0x0"
12
    },
13
    "tx": {
14
      "disabled": false,
15
      "oldestBlock": "0x0"
16
    },
17
    "logs": {
18
      "disabled": false,
19
      "oldestBlock": "0x0"
20
    },
21
    "receipts": {
22
      "disabled": false,
23
      "oldestBlock": "0x0"
24
    },
25
    "blocks": {
26
      "disabled": false,
27
      "oldestBlock": "0x0"
28
    },
29
    "stateproofs": {
30
      "disabled": false,
31
      "oldestBlock": "0x0"
32
    }
33
  }
34
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "head": {
6
      "number": "0x1850b9b",
7
      "hash": "0xd8b72f903567c6c25c6d0c690db7a320d61a4987f9c7a2a435061e5439e2817c"
8
    },
9
    "state": {
10
      "disabled": false,
11
      "oldestBlock": "0x0"
12
    },
13
    "tx": {
14
      "disabled": false,
15
      "oldestBlock": "0x0"
16
    },
17
    "logs": {
18
      "disabled": false,
19
      "oldestBlock": "0x0"
20
    },
21
    "receipts": {
22
      "disabled": false,
23
      "oldestBlock": "0x0"
24
    },
25
    "blocks": {
26
      "disabled": false,
27
      "oldestBlock": "0x0"
28
    },
29
    "stateproofs": {
30
      "disabled": false,
31
      "oldestBlock": "0x0"
32
    }
33
  }
34
}

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