> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uniblock.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# ots_traceTransaction

> Trace a transaction and generate a trace call tree.

### Parameters

<ParamField query="chainId" type="string" default="1" required>
  Unique identifier for a blockchain network.
</ParamField>

<ParamField body="id" type="number" default={1} required>
  Request identifier used to match responses.
</ParamField>

<ParamField body="jsonrpc" type="string" default="2.0" required>
  JSON-RPC version.
</ParamField>

<ParamField body="method" type="string" default="ots_traceTransaction" required>
  JSON-RPC method name.
</ParamField>

<ParamField body="params" type="object" default={["0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b"]} placeholder="[&#x22;0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b&#x22;]" required>
  The parameters for ots\_traceTransaction: \[transactionHash].

  Positional parameters for <code>ots\_traceTransaction</code>:

  <ul>
    <li><code>params\[]</code>: 32 Bytes - Hash of the transaction.</li>
  </ul>
</ParamField>

### Returns

<ResponseField name="result" type="object">
  object containing the trace tree.
</ResponseField>

<RequestExample>
  ```bash Curl theme={null}
  curl --request POST \
    --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=1 \
    --header 'content-type: application/json' \
    --data '{
      "id": 1,
      "jsonrpc": "2.0",
      "method": "ots_traceTransaction",
      "params": [
        "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b"
      ]
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json Success theme={null}
  {
    "jsonrpc": "2.0",
    "id": 1,
    "result": {}
  }
  ```
</ResponseExample>