# Average interest rate on US Treasury bills, last 24 months

**Use case:** 

Monthly average interest rates on outstanding US Treasury bills from the Treasury's Fiscal Data API for the last 24 months, with the change versus a year earlier in percentage points.

## Input

```json
{
  "securityKeyword": "Treasury Bills",
  "monthsBack": 24,
  "maxResults": 50
}
```

## Output

```json
{
  "date": {
    "label": "Month",
    "format": "text"
  },
  "securityDescription": {
    "label": "Security",
    "format": "text"
  },
  "securityType": {
    "label": "Type",
    "format": "text"
  },
  "avgInterestRatePercent": {
    "label": "Average rate (%)",
    "format": "number"
  },
  "yearOverYearChangePercentagePoints": {
    "label": "Change vs a year ago (pp)",
    "format": "number"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The US Treasury Interest Rates: Bills, Notes, Bonds Actor is ready to run with the inputs already set for "Average interest rate on US Treasury bills, last 24 months". [Sign up or log in](https://console.apify.com/create-task-from-example/bLFpwcPfsZmfomaOW) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Average interest rate on US Treasury bills, last 24 months" task

The US Treasury Interest Rates: Bills, Notes, Bonds Actor will start running based on the input automatically. You can also change all the input fields, like security keyword, months back, and more, to match your specific use case.

### 3. Receive the "Average interest rate on US Treasury bills, last 24 months" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as month, security, type, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Average interest rate on US Treasury bills, last 24 months" task via API](https://apify.com/m_ctim/us-treasury-interest-rate-tracker.md).

## About this Actor

This example demonstrates how to use [US Treasury Interest Rates: Bills, Notes, Bonds](https://apify.com/m_ctim/us-treasury-interest-rate-tracker.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/m_ctim/us-treasury-interest-rate-tracker.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/m_ctim/us-treasury-interest-rate-tracker.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).