---
updatedAt: 2026-04-21T11:22:20.000Z
agentTools:
  projectIndex: https://docs.lmnl.app/v2/llms.txt
---

# Submit a transaction

This API is a request to submit transactions for broadcasting to the blockchain network from a specific v2 <<glossary:hot wallet>>. Run this API to process your transactions that are fully approved by the initiator and Liminal Firewall (if applicable). <br><br> To learn how to set up v2 hot wallets with Liminal Firewall, see [Set up v2 hot wallets with Liminal Firewall](https://docs.lmnl.app/v2/docs/set-up-v2-hot-wallets-with-liminal-firewall).

<Callout icon="📘" theme="info">
  **Note**

  * If the firewall is enabled, we recommend setting the API with a CRON job at a 30-second interval. It is important that transactions for certain chains, such as Tron, must be executed within 60 seconds after submitting the respective transaction.
  * While all liminal supported chains support firewall for Mobile MPC Wallets, please refer to the [latest supported chains](https://docs.lmnl.app/v2/reference/firewall-supported-chains-for-v2-wallets) for hot V2 wallets supporting firewall.
</Callout>

# OpenAPI definition

```json
{
  "openapi": "3.0.0",
  "info": {
    "title": "API REFERENCES",
    "contact": {},
    "version": "8"
  },
  "servers": [
    {
      "url": "https://api-sdk.lmnl.dev",
      "variables": {}
    }
  ],
  "tags": [
    {
      "name": "Transactions"
    }
  ],
  "paths": {
    "/api/v2/wallets/{:walletid}/submit-transaction": {
      "post": {
        "tags": [
          "Transactions"
        ],
        "summary": "Submit a transaction",
        "description": "This API is a request to submit transactions for broadcasting to the blockchain network from a specific v2 <<glossary:hot wallet>>. Run this API to process your transactions that are fully approved by the initiator and Liminal Firewall (if applicable). <br><br> To learn how to set up v2 hot wallets with Liminal Firewall, see [Set up v2 hot wallets with Liminal Firewall](https://docs.lmnl.app/v2/docs/set-up-v2-hot-wallets-with-liminal-firewall).",
        "operationId": "SubmitTransaction",
        "parameters": [
          {
            "schema": {
              "type": "integer"
            },
            "description": "Enter the unique identifier of the wallet.",
            "example": 12345,
            "required": true,
            "name": ":walletid",
            "in": "path"
          }
        ],
        "requestBody": {
          "description": "",
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "wallet": {
                    "type": "object",
                    "required": [
                      "coin"
                    ],
                    "properties": {
                      "coin": {
                        "allOf": [
                          {
                            "$ref": "#/components/schemas/coinEnum2"
                          }
                        ]
                      }
                    }
                  }
                },
                "required": [
                  "wallet"
                ]
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean",
                      "description": "This indicates whether the transactions are successfully submitted to the blockchain network or not.",
                      "example": true
                    },
                    "data": {
                      "type": "string",
                      "description": "The additional information about the result of the transaction submission.",
                      "example": "Transaction has been submitted successfully."
                    }
                  },
                  "required": [
                    "success",
                    "data"
                  ]
                }
              }
            }
          },
          "404": {
            "description": "Not found",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean",
                      "description": "This indicates whether the transactions are successfully submitted to the blockchain network or not.",
                      "example": false
                    },
                    "data": {
                      "type": "object",
                      "description": "The additional information about the result of the transaction submission.",
                      "example": {}
                    },
                    "message": {
                      "type": "string",
                      "description": "A short description of the error.",
                      "example": "Pending Transaction not found"
                    },
                    "code": {
                      "type": "string",
                      "description": "The code of the error.",
                      "example": ""
                    }
                  },
                  "required": [
                    "success",
                    "data"
                  ]
                }
              }
            }
          }
        },
        "deprecated": false,
        "security": [
          {
            "basic": []
          }
        ]
      }
    }
  },
  "components": {
    "schemas": {
      "coinEnum2": {
        "title": "coinEnum2",
        "enum": [
          "eth",
          "btc",
          "doge",
          "bch",
          "ltc",
          "matic",
          "xrp",
          "trx",
          "bnb",
          "uatom",
          "sol",
          "xlm",
          "aeth",
          "avax",
          "oeth",
          "algo",
          "beth",
          "kaia",
          "celo"
        ],
        "type": "string",
        "description": "Enter the abbreviated form of the cryptocurrency associated with the wallet. Select \"aeth\" for Arbitrum, \"beth\" for Base, and \"oeth\" for Optimism."
      }
    },
    "securitySchemes": {
      "basic": {
        "type": "http",
        "scheme": "basic"
      }
    }
  },
  "security": []
}
```