# Calling Children Flows
***
One of the powerful features of Tailwinds is that you can turn flows into tools. For example, having a main flow to orchestrate which/when to use the necessary tools. And each tool is designed to perform a niece/specific thing.
This offers a few benefits:
* Each children flow as tool will execute on its own, with separate memory to allow cleaner output
* Aggregating detailed outputs from each children flow to a final agent, often results in higher quality output
You can achieve this by using the following tools:
* Chatflow Tool
* Custom Tool
## Chatflow Tool
1. Have a chatflow ready. In this case, we create a Chain of Thought chatflow that can go through multiple chainings.
2. Create another chatflow with Tool Agent + Chatflow Tool. Select the chatflow you want to call from the tool. In this case, it was Chain of Thought chatflow. Give it a name, and an appropriate description to let LLM knows when to use this tool:
3. Test it out!
4. From the response, you can see the input and output from the Chatflow Tool:
## Custom Tool
With the same example as above, we are going to create a custom tool that will calls the [Prediction API](https://github.com/innovativeSol/tailwinds-docs/blob/main/using-flowise/api.md#prediction-api) of the Chain of Thought chatflow.
1. Create a new tool:
Tool Name
Tool Description
ideas_flow
Use this tool when you need to achieve certain objective
Input Schema:
Property
Type
Description
Required
input
string
input question
true
Javascript Function of the tool:
```javascript
const fetch = require('node-fetch');
const url = 'http:///api/v1/prediction/'; // replace with specific chatflow id
const body = {
"question": $input
};
const options = {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(body)
};
try {
const response = await fetch(url, options);
const resp = await response.json();
return resp.text;
} catch (error) {
console.error(error);
return '';
}
```
2. Create a Tool Agent + Custom Tool. Specify the tool we've created in Step 1 in the Custom Tool.
3. From the response, you can see the input and output from the Custom Tool:
## Conclusion
In this example, we have successfully demonstrate 2 ways of turning other chatflows into tools, via Chatflow Tool and Custom Tool. Both are using the same code logic under the hood.
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