> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.runtype.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.runtype.com/_mcp/server.

# List child executions of a run

GET https://api.runtype.com/v1/logs/trace/execution/{executionId}/children

Lists the subagent runs whose `parentExecutionId` is this execution, each keyed back to the tool call that spawned it. Fetch a child tree by passing its `executionId` to the trace route.

Reference: https://docs.runtype.com/api-reference/runtype-api/logs/list-child-executions-of-a-run

## Authentication

- `Authorization` header (bearer token, required) — API key or Clerk session token

## Servers

- `https://api.runtype.com` (Production, default)
- `https://api.runtype-staging.com` (Staging)

## Request

### Path parameters

- `executionId` (string, required) — Runtime execution_id / executionSessionId of the parent run

## Response

### 200

Child executions returned

- `data` (list of V1LogsTraceExecutionExecutionIdChildrenGetResponsesContentApplicationJsonSchemaDataItems, required)
- `success` (boolean, required)
- `truncated` (boolean, optional) — Present and true only when the span-store leg of this read hit its per-parent ceiling, so later children it holds are not listed. Absent otherwise.

## Errors

### 400 Bad Request Error

Invalid request

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 401 Unauthorized Error

Unauthorized

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 403 Forbidden Error

API key lacks a read scope (FLOWS:READ, AGENTS:READ or ANALYTICS:READ)

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 500 Internal Server Error

Internal server error

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

## Types

### V1LogsTraceExecutionExecutionIdChildrenGetResponsesContentApplicationJsonSchemaDataItems

- `completedAt` (string, required, nullable)
- `executionId` (string, required)
- `parentToolCallId` (string, required, nullable)
- `startedAt` (string, required, nullable)
- `status` (string, required)
- `signals` (SignalsBlock, optional) — Typed signals read from this trace by the signal sets bound to its agent. Omitted entirely until the organization binds a signal set; once it has, `status` is `none` on a trace no binding matched.

### ErrorDetailsItems

- `message` (string, required)
- `code` (string, optional) — Stable Runtype validation code (e.g. MISSING_REQUIRED_FIELD, INVALID_ENUM).
- `path` (string, optional) — Dotted JSON path to the offending field.
- `suggestion` (string, optional) — Actionable hint (allowed values, accepted range, …).

### SignalsBlock

Typed signals read from this trace by the signal sets bound to its agent. Omitted entirely until the organization binds a signal set; once it has, `status` is `none` on a trace no binding matched.

- `fired` (list of string, required)
- `results` (list of SignalResult, required)
- `status` (enum, required)
  - Allowed values: `complete`, `pending`, `partial`, `none`, `unavailable`

### SignalResult

- `answers` (map from string to SignalAnswer, required)
- `bindingId` (string, required)
- `computedAt` (string, required)
- `fired` (list of string, required)
- `sample` (enum, required)
  - Allowed values: `uniform`, `filtered`
- `signalSet` (SignalResultSignalSet, required)
- `status` (enum, required)
  - Allowed values: `complete`, `failed`, `skipped_budget`, `skipped_policy`, `skipped_billing`
- `target` (SignalResultTarget, required)
- `unit` (enum, required)
  - Allowed values: `turn`, `conversation`, `run`
- `values` (map from string to any, required)
- `error` (string, optional)

### SignalAnswer

- `band` (enum, required)
  - Allowed values: `act`, `review`, `low`
- `confidence` (double, optional)
- `distribution` (map from string to double, optional)
- `fired` (boolean, optional)
- `pNull` (double, optional)
- `refused` (boolean, optional)
- `source` (SignalSource, optional)
- `sources` (list of SignalSource, optional)
- `value` (any, optional)

### SignalResultSignalSet

- `id` (string, required)
- `name` (string, required)
- `version` (integer, required)

### SignalResultTarget

- `executionId` (string, required)
- `spanId` (string, required, nullable)
- `turnIndex` (integer, required, nullable)

### SignalSource

- `end` (integer, required)
- `field` (string, required)
- `spanId` (string, required)
- `start` (integer, required)

## Examples

**Response**

```json
{
  "data": [
    {
      "completedAt": "string",
      "executionId": "string",
      "parentToolCallId": "string",
      "startedAt": "string",
      "status": "string",
      "signals": {
        "fired": [
          "string"
        ],
        "results": [
          {
            "answers": {},
            "bindingId": "string",
            "computedAt": "string",
            "fired": [
              "string"
            ],
            "sample": "uniform",
            "signalSet": {
              "id": "string",
              "name": "string",
              "version": 1
            },
            "status": "complete",
            "target": {
              "executionId": "string",
              "spanId": "string",
              "turnIndex": 1
            },
            "unit": "turn",
            "values": {},
            "error": "string"
          }
        ],
        "status": "complete"
      }
    }
  ],
  "success": true,
  "truncated": true
}
```

**SDK Code**

```python
import requests

url = "https://api.runtype.com/v1/logs/trace/execution/executionId/children"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.runtype.com/v1/logs/trace/execution/executionId/children';
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.runtype.com/v1/logs/trace/execution/executionId/children"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.runtype.com/v1/logs/trace/execution/executionId/children")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.runtype.com/v1/logs/trace/execution/executionId/children")
  .header("Authorization", "Bearer <token>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.runtype.com/v1/logs/trace/execution/executionId/children', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.runtype.com/v1/logs/trace/execution/executionId/children");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <token>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.runtype.com/v1/logs/trace/execution/executionId/children")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```