Body Parameters

tx

object

Transaction data

body

object

The body of the transaction

messages

array

REQUIRED

Messages included in the transaction

type_url

string

The type URL of the message

exchange_rates

string

The exchange rates

feeder

string

The feeder address

validator

string

The validator address

memo

string

Memo field for additional info

timeout_height

string

REQUIRED

Block height after which this transaction will not be processed

extension_options

array

Extension options for advanced transaction processing

type_url

string

The type URL of the extension

value

string

The value of the extension

non_critical_extension_options

array

Non-critical extension options

type_url

string

The type URL of the non-critical extension

value

string

The value of the non-critical extension

auth_info

object

Authorization info for the transaction

signer_infos

array

Info about signers of the transaction

public_key

object

Public key of the signer

type_url

string

The type URL of the public key

value

string

The value of the public key

mode_info

object

Mode info for signing

single

object

Single mode info

mode

string

Signing mode

multi

object

Multi-signature mode info

bitarray

object

Bit array for multi-signature

extra_bits_stored

integer

Extra bits stored in the bit array

elems

string

Elements of the bit array

mode_infos

array

Info about each signing mode in a multi-signature

sequence

string

Sequence number of the signer

fee

object

REQUIRED

Fee information for the transaction

amount

array

Amount of fees for the transaction

denom

string

The denomination of the fee

amount

string

The amount of the fee

gas_limit

string

The gas limit for the transaction

payer

string

The payer of the transaction fees

granter

string

The granter of the transaction fees

tip

object

The optional tip used for transaction fees paid in another denom

amount

array

Array of objects representing the amount of the tip

denom

string

The denomination of the tip

amount

string

The amount of the tip

tipper

string

The address of the account paying for the tip

signatures

array

REQUIRED

An array of signatures for the transaction

tx_bytes

string

The transaction bytes

Returns

params

object

The params object which contains the following fields:

gas_info

object

The gas_info object which contains the following fields:

gas_wanted

string

The maximum units of work that is allowed to perform

gas_used

string

The amount of gas actually consumed

result

object

The result object which contains the following fields:

data

string

Any data returned from message or handler execution

log

string

The log information from message or handler execution

events

array

An array of events

type

string

The type of the event

attributes

array

An array of attributes

key

string

Attribute key which describes the type of information the value holds

value

string

Attribute value associated with the corresponding key

index

boolean

A boolean flag indicating whether the attribute is indexed

msg_responses

array

An array of message handler responses

type_url

string

A URL/resource name that uniquely identifies the type of the serialized protocol buffer message

value

string

A valid serialized protocol buffer of the above specified type

Request

1
curl --location 'https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate' \
2
--header 'Content-Type: application/json' \
3
--data '{
4
  "tx": {
5
    "body": {
6
      "messages": [
7
        {
8
          "type_url": "TYPE_URL",
9
          "value": "VALUE"
10
        }
11
      ],
12
      "memo": "MEMO",
13
      "timeout_height": "TIMEOUT_HEIGHT",
14
      "extension_options": [
15
        {
16
          "type_url": "TYPE_URL",
17
          "value": "VALUE"
18
        }
19
      ],
20
      "non_critical_extension_options": [
21
        {
22
          "type_url": "TYPE_URL",
23
          "value": "VALUE"
24
        }
25
      ]
26
    },
27
    "auth_info": {
28
      "signer_infos": [
29
        {
30
          "public_key": {
31
            "type_url": "TYPE_URL",
32
          "value": "VALUE"
33
          },
34
          "mode_info": {
35
            "single": {
36
              "mode": "SIGN_MODE_UNSPECIFIED"
37
            },
38
            "multi": {
39
              "bitarray": {
40
                "extra_bits_stored": 0,
41
                "elems": "ELEMS"
42
              },
43
              "mode_infos": [
44
                {}
45
              ]
46
            }
47
          },
48
          "sequence": "SEQUENCE"
49
        }
50
      ],
51
      "fee": {
52
        "amount": [
53
          {
54
            "denom": "DENOM",
55
            "amount": "AMOUNT"
56
          }
57
        ],
58
        "gas_limit": "GAS_LIMIT",
59
        "payer": "PAYER",
60
        "granter": "GRANTER"
61
      },
62
      "tip": {
63
        "amount": [
64
          {
65
            "denom": "DENOM",
66
            "amount": "AMOUNT"
67
          }
68
        ],
69
        "tipper": "TIPPER"
70
      }
71
    },
72
    "signatures": [
73
      "SIGNATURES"
74
    ]
75
  },
76
  "tx_bytes": "TX_BYTES"
77
}'

1
curl --location 'https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate' \
2
--header 'Content-Type: application/json' \
3
--data '{
4
  "tx": {
5
    "body": {
6
      "messages": [
7
        {
8
          "type_url": "TYPE_URL",
9
          "value": "VALUE"
10
        }
11
      ],
12
      "memo": "MEMO",
13
      "timeout_height": "TIMEOUT_HEIGHT",
14
      "extension_options": [
15
        {
16
          "type_url": "TYPE_URL",
17
          "value": "VALUE"
18
        }
19
      ],
20
      "non_critical_extension_options": [
21
        {
22
          "type_url": "TYPE_URL",
23
          "value": "VALUE"
24
        }
25
      ]
26
    },
27
    "auth_info": {
28
      "signer_infos": [
29
        {
30
          "public_key": {
31
            "type_url": "TYPE_URL",
32
          "value": "VALUE"
33
          },
34
          "mode_info": {
35
            "single": {
36
              "mode": "SIGN_MODE_UNSPECIFIED"
37
            },
38
            "multi": {
39
              "bitarray": {
40
                "extra_bits_stored": 0,
41
                "elems": "ELEMS"
42
              },
43
              "mode_infos": [
44
                {}
45
              ]
46
            }
47
          },
48
          "sequence": "SEQUENCE"
49
        }
50
      ],
51
      "fee": {
52
        "amount": [
53
          {
54
            "denom": "DENOM",
55
            "amount": "AMOUNT"
56
          }
57
        ],
58
        "gas_limit": "GAS_LIMIT",
59
        "payer": "PAYER",
60
        "granter": "GRANTER"
61
      },
62
      "tip": {
63
        "amount": [
64
          {
65
            "denom": "DENOM",
66
            "amount": "AMOUNT"
67
          }
68
        ],
69
        "tipper": "TIPPER"
70
      }
71
    },
72
    "signatures": [
73
      "SIGNATURES"
74
    ]
75
  },
76
  "tx_bytes": "TX_BYTES"
77
}'

1
package main
2

3
import (
4
	"context"
5
	tx "cosmossdk.io/api/cosmos/tx/v1beta1"
6
	"fmt"
7
	"google.golang.org/grpc"
8
	"log"
9
)
10

11
func main() {
12
	endpoint := "YOUR_QUICKNODE_ENDPOINT"
13
	target, opts := getGrpcOptions(endpoint)
14
	grpcConn, err := grpc.Dial(target, opts...)
15
	if err != nil {
16
		log.Fatal(err)
17
	}
18
	defer grpcConn.Close()
19

20
	req := &tx.SimulateRequest{
21
		TxBytes: []byte("YOUR_TX_BYTES")
22
	}
23
	txClient := tx.NewServiceClient(grpcConn)
24
	resp, err := txClient.Simulate(context.Background(), req)
25
	if err != nil {
26
		log.Fatal(err)
27
	}
28
	fmt.Println(resp.SimulateResponse().Result())
29
}
30

1
package main
2

3
import (
4
	"context"
5
	tx "cosmossdk.io/api/cosmos/tx/v1beta1"
6
	"fmt"
7
	"google.golang.org/grpc"
8
	"log"
9
)
10

11
func main() {
12
	endpoint := "YOUR_QUICKNODE_ENDPOINT"
13
	target, opts := getGrpcOptions(endpoint)
14
	grpcConn, err := grpc.Dial(target, opts...)
15
	if err != nil {
16
		log.Fatal(err)
17
	}
18
	defer grpcConn.Close()
19

20
	req := &tx.SimulateRequest{
21
		TxBytes: []byte("YOUR_TX_BYTES")
22
	}
23
	txClient := tx.NewServiceClient(grpcConn)
24
	resp, err := txClient.Simulate(context.Background(), req)
25
	if err != nil {
26
		log.Fatal(err)
27
	}
28
	fmt.Println(resp.SimulateResponse().Result())
29
}
30

1
const myHeaders = new Headers();
2
myHeaders.append("Content-Type", "application/json");
3

4
const raw = JSON.stringify({
5
  "tx": {
6
    "body": {
7
      "messages": [
8
        {
9
          "type_url": "TYPE_URL",
10
          "value": "VALUE"
11
        }
12
      ],
13
      "memo": "MEMO",
14
      "timeout_height": "TIMEOUT_HEIGHT",
15
      "extension_options": [
16
        {
17
          "type_url": "TYPE_URL",
18
          "value": "VALUE"
19
        }
20
      ],
21
      "non_critical_extension_options": [
22
        {
23
          "type_url": "TYPE_URL",
24
          "value": "VALUE"
25
        }
26
      ]
27
    },
28
    "auth_info": {
29
      "signer_infos": [
30
        {
31
          "public_key": {
32
            "type_url": "TYPE_URL",
33
            "value": "VALUE"
34
          },
35
          "mode_info": {
36
            "single": {
37
              "mode": "SIGN_MODE_UNSPECIFIED"
38
            },
39
            "multi": {
40
              "bitarray": {
41
                "extra_bits_stored": 0,
42
                "elems": "ELEMS"
43
              },
44
              "mode_infos": [
45
                {}
46
              ]
47
            }
48
          },
49
          "sequence": "SEQUENCE"
50
        }
51
      ],
52
      "fee": {
53
        "amount": [
54
          {
55
            "denom": "DENOM",
56
            "amount": "AMOUNT"
57
          }
58
        ],
59
        "gas_limit": "GAS_LIMIT",
60
        "payer": "PAYER",
61
        "granter": "GRANTER"
62
      },
63
      "tip": {
64
        "amount": [
65
          {
66
            "denom": "DENOM",
67
            "amount": "AMOUNT"
68
          }
69
        ],
70
        "tipper": "TIPPER"
71
      }
72
    },
73
    "signatures": [
74
      "SIGNATURES"
75
    ]
76
  },
77
  "tx_bytes": "TX_BYTES"
78
});
79

80
const requestOptions = {
81
  method: "POST",
82
  headers: myHeaders,
83
  body: raw,
84
  redirect: "follow"
85
};
86

87
fetch("https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate", requestOptions)
88
  .then((response) => response.text())
89
  .then((result) => console.log(result))
90
  .catch((error) => console.error(error));

1
const myHeaders = new Headers();
2
myHeaders.append("Content-Type", "application/json");
3

4
const raw = JSON.stringify({
5
  "tx": {
6
    "body": {
7
      "messages": [
8
        {
9
          "type_url": "TYPE_URL",
10
          "value": "VALUE"
11
        }
12
      ],
13
      "memo": "MEMO",
14
      "timeout_height": "TIMEOUT_HEIGHT",
15
      "extension_options": [
16
        {
17
          "type_url": "TYPE_URL",
18
          "value": "VALUE"
19
        }
20
      ],
21
      "non_critical_extension_options": [
22
        {
23
          "type_url": "TYPE_URL",
24
          "value": "VALUE"
25
        }
26
      ]
27
    },
28
    "auth_info": {
29
      "signer_infos": [
30
        {
31
          "public_key": {
32
            "type_url": "TYPE_URL",
33
            "value": "VALUE"
34
          },
35
          "mode_info": {
36
            "single": {
37
              "mode": "SIGN_MODE_UNSPECIFIED"
38
            },
39
            "multi": {
40
              "bitarray": {
41
                "extra_bits_stored": 0,
42
                "elems": "ELEMS"
43
              },
44
              "mode_infos": [
45
                {}
46
              ]
47
            }
48
          },
49
          "sequence": "SEQUENCE"
50
        }
51
      ],
52
      "fee": {
53
        "amount": [
54
          {
55
            "denom": "DENOM",
56
            "amount": "AMOUNT"
57
          }
58
        ],
59
        "gas_limit": "GAS_LIMIT",
60
        "payer": "PAYER",
61
        "granter": "GRANTER"
62
      },
63
      "tip": {
64
        "amount": [
65
          {
66
            "denom": "DENOM",
67
            "amount": "AMOUNT"
68
          }
69
        ],
70
        "tipper": "TIPPER"
71
      }
72
    },
73
    "signatures": [
74
      "SIGNATURES"
75
    ]
76
  },
77
  "tx_bytes": "TX_BYTES"
78
});
79

80
const requestOptions = {
81
  method: "POST",
82
  headers: myHeaders,
83
  body: raw,
84
  redirect: "follow"
85
};
86

87
fetch("https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate", requestOptions)
88
  .then((response) => response.text())
89
  .then((result) => console.log(result))
90
  .catch((error) => console.error(error));

1
import requests
2
import json
3

4
url = "https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate"
5

6
payload = json.dumps({
7
  "tx": {
8
    "body": {
9
      "messages": [
10
        {
11
          "type_url": "TYPE_URL",
12
          "value": "VALUE"
13
        }
14
      ],
15
      "memo": "MEMO",
16
      "timeout_height": "TIMEOUT_HEIGHT",
17
      "extension_options": [
18
        {
19
          "type_url": "TYPE_URL",
20
          "value": "VALUE"
21
        }
22
      ],
23
      "non_critical_extension_options": [
24
        {
25
          "type_url": "TYPE_URL",
26
          "value": "VALUE"
27
        }
28
      ]
29
    },
30
    "auth_info": {
31
      "signer_infos": [
32
        {
33
          "public_key": {
34
            "type_url": "TYPE_URL",
35
            "value": "VALUE"
36
          },
37
          "mode_info": {
38
            "single": {
39
              "mode": "SIGN_MODE_UNSPECIFIED"
40
            },
41
            "multi": {
42
              "bitarray": {
43
                "extra_bits_stored": 0,
44
                "elems": "ELEMS"
45
              },
46
              "mode_infos": [
47
                {}
48
              ]
49
            }
50
          },
51
          "sequence": "SEQUENCE"
52
        }
53
      ],
54
      "fee": {
55
        "amount": [
56
          {
57
            "denom": "DENOM",
58
            "amount": "AMOUNT"
59
          }
60
        ],
61
        "gas_limit": "GAS_LIMIT",
62
        "payer": "PAYER",
63
        "granter": "GRANTER"
64
      },
65
      "tip": {
66
        "amount": [
67
          {
68
            "denom": "DENOM",
69
            "amount": "AMOUNT"
70
          }
71
        ],
72
        "tipper": "TIPPER"
73
      }
74
    },
75
    "signatures": [
76
      "SIGNATURES"
77
    ]
78
  },
79
  "tx_bytes": "TX_BYTES"
80
})
81
headers = {
82
  'Content-Type': 'application/json'
83
}
84

85
response = requests.request("POST", url, headers=headers, data=payload)
86

87
print(response.text)
88

1
import requests
2
import json
3

4
url = "https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate"
5

6
payload = json.dumps({
7
  "tx": {
8
    "body": {
9
      "messages": [
10
        {
11
          "type_url": "TYPE_URL",
12
          "value": "VALUE"
13
        }
14
      ],
15
      "memo": "MEMO",
16
      "timeout_height": "TIMEOUT_HEIGHT",
17
      "extension_options": [
18
        {
19
          "type_url": "TYPE_URL",
20
          "value": "VALUE"
21
        }
22
      ],
23
      "non_critical_extension_options": [
24
        {
25
          "type_url": "TYPE_URL",
26
          "value": "VALUE"
27
        }
28
      ]
29
    },
30
    "auth_info": {
31
      "signer_infos": [
32
        {
33
          "public_key": {
34
            "type_url": "TYPE_URL",
35
            "value": "VALUE"
36
          },
37
          "mode_info": {
38
            "single": {
39
              "mode": "SIGN_MODE_UNSPECIFIED"
40
            },
41
            "multi": {
42
              "bitarray": {
43
                "extra_bits_stored": 0,
44
                "elems": "ELEMS"
45
              },
46
              "mode_infos": [
47
                {}
48
              ]
49
            }
50
          },
51
          "sequence": "SEQUENCE"
52
        }
53
      ],
54
      "fee": {
55
        "amount": [
56
          {
57
            "denom": "DENOM",
58
            "amount": "AMOUNT"
59
          }
60
        ],
61
        "gas_limit": "GAS_LIMIT",
62
        "payer": "PAYER",
63
        "granter": "GRANTER"
64
      },
65
      "tip": {
66
        "amount": [
67
          {
68
            "denom": "DENOM",
69
            "amount": "AMOUNT"
70
          }
71
        ],
72
        "tipper": "TIPPER"
73
      }
74
    },
75
    "signatures": [
76
      "SIGNATURES"
77
    ]
78
  },
79
  "tx_bytes": "TX_BYTES"
80
})
81
headers = {
82
  'Content-Type': 'application/json'
83
}
84

85
response = requests.request("POST", url, headers=headers, data=payload)
86

87
print(response.text)
88

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

5
url = URI("https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate")
6

7
https = Net::HTTP.new(url.host, url.port)
8
https.use_ssl = true
9

10
request = Net::HTTP::Post.new(url)
11
request["Content-Type"] = "application/json"
12
request.body = JSON.dump({
13
  "tx": {
14
    "body": {
15
      "messages": [
16
        {
17
          "type_url": "TYPE_URL",
18
          "value": "VALUE"
19
        }
20
      ],
21
      "memo": "MEMO",
22
      "timeout_height": "TIMEOUT_HEIGHT",
23
      "extension_options": [
24
        {
25
          "type_url": "TYPE_URL",
26
          "value": "VALUE"
27
        }
28
      ],
29
      "non_critical_extension_options": [
30
        {
31
          "type_url": "TYPE_URL",
32
          "value": "VALUE"
33
        }
34
      ]
35
    },
36
    "auth_info": {
37
      "signer_infos": [
38
        {
39
          "public_key": {
40
            "type_url": "TYPE_URL",
41
            "value": "VALUE"
42
          },
43
          "mode_info": {
44
            "single": {
45
              "mode": "SIGN_MODE_UNSPECIFIED"
46
            },
47
            "multi": {
48
              "bitarray": {
49
                "extra_bits_stored": 0,
50
                "elems": "ELEMS"
51
              },
52
              "mode_infos": [
53
                {}
54
              ]
55
            }
56
          },
57
          "sequence": "SEQUENCE"
58
        }
59
      ],
60
      "fee": {
61
        "amount": [
62
          {
63
            "denom": "DENOM",
64
            "amount": "AMOUNT"
65
          }
66
        ],
67
        "gas_limit": "GAS_LIMIT",
68
        "payer": "PAYER",
69
        "granter": "GRANTER"
70
      },
71
      "tip": {
72
        "amount": [
73
          {
74
            "denom": "DENOM",
75
            "amount": "AMOUNT"
76
          }
77
        ],
78
        "tipper": "TIPPER"
79
      }
80
    },
81
    "signatures": [
82
      "SIGNATURES"
83
    ]
84
  },
85
  "tx_bytes": "TX_BYTES"
86
})
87

88
response = https.request(request)
89
puts response.read_body
90

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

5
url = URI("https://docs-demo.sei-pacific.quiknode.pro/cosmos/tx/v1beta1/simulate")
6

7
https = Net::HTTP.new(url.host, url.port)
8
https.use_ssl = true
9

10
request = Net::HTTP::Post.new(url)
11
request["Content-Type"] = "application/json"
12
request.body = JSON.dump({
13
  "tx": {
14
    "body": {
15
      "messages": [
16
        {
17
          "type_url": "TYPE_URL",
18
          "value": "VALUE"
19
        }
20
      ],
21
      "memo": "MEMO",
22
      "timeout_height": "TIMEOUT_HEIGHT",
23
      "extension_options": [
24
        {
25
          "type_url": "TYPE_URL",
26
          "value": "VALUE"
27
        }
28
      ],
29
      "non_critical_extension_options": [
30
        {
31
          "type_url": "TYPE_URL",
32
          "value": "VALUE"
33
        }
34
      ]
35
    },
36
    "auth_info": {
37
      "signer_infos": [
38
        {
39
          "public_key": {
40
            "type_url": "TYPE_URL",
41
            "value": "VALUE"
42
          },
43
          "mode_info": {
44
            "single": {
45
              "mode": "SIGN_MODE_UNSPECIFIED"
46
            },
47
            "multi": {
48
              "bitarray": {
49
                "extra_bits_stored": 0,
50
                "elems": "ELEMS"
51
              },
52
              "mode_infos": [
53
                {}
54
              ]
55
            }
56
          },
57
          "sequence": "SEQUENCE"
58
        }
59
      ],
60
      "fee": {
61
        "amount": [
62
          {
63
            "denom": "DENOM",
64
            "amount": "AMOUNT"
65
          }
66
        ],
67
        "gas_limit": "GAS_LIMIT",
68
        "payer": "PAYER",
69
        "granter": "GRANTER"
70
      },
71
      "tip": {
72
        "amount": [
73
          {
74
            "denom": "DENOM",
75
            "amount": "AMOUNT"
76
          }
77
        ],
78
        "tipper": "TIPPER"
79
      }
80
    },
81
    "signatures": [
82
      "SIGNATURES"
83
    ]
84
  },
85
  "tx_bytes": "TX_BYTES"
86
})
87

88
response = https.request(request)
89
puts response.read_body
90

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