# Fed rate decision odds: Kalshi vs Polymarket

**Use case:** 

Live Fed rate decision probabilities from Kalshi and Polymarket in one table: yes price, bid/ask, spread, 24h volume and resolution rules. No API key.

## Input

```json
{
  "venues": [
    "kalshi",
    "polymarket"
  ],
  "searchTerms": [
    "fed",
    "fomc",
    "rate"
  ],
  "minVolume24h": 0,
  "maxResults": 20,
  "excludeParlays": true,
  "maxPagesPerVenue": 15
}
```

## Output

```json
{
  "venue": {
    "label": "Venue"
  },
  "question": {
    "label": "Question"
  },
  "outcome": {
    "label": "Outcome"
  },
  "category": {
    "label": "Category"
  },
  "yes_price": {
    "label": "Yes price"
  },
  "yes_bid": {
    "label": "Yes bid"
  },
  "yes_ask": {
    "label": "Yes ask"
  },
  "spread": {
    "label": "Spread"
  },
  "volume_24h": {
    "label": "Volume 24h"
  },
  "volume_total": {
    "label": "Volume total"
  },
  "liquidity": {
    "label": "Liquidity"
  },
  "close_time": {
    "label": "Close time"
  },
  "url": {
    "label": "Url"
  }
}
```

## How it works

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

The Prediction Markets Odds API - Kalshi + Polymarket in one schema Actor is ready to run with the inputs already set for "Fed rate decision odds: Kalshi vs Polymarket". [Sign up or log in](https://console.apify.com/create-task-from-example/oIBT627eXyeYKEq3O) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Fed rate decision odds: Kalshi vs Polymarket" task

The Prediction Markets Odds API - Kalshi + Polymarket in one schema Actor will start running based on the input automatically. You can also change all the input fields, like venues, keywords, and more, to match your specific use case.

### 3. Receive the "Fed rate decision odds: Kalshi vs Polymarket" 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 venue, question, outcome, 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 "Fed rate decision odds: Kalshi vs Polymarket" task via API](https://apify.com/cleandatalabs/prediction-markets-odds.md).

## FAQ

### Do I need a Kalshi or Polymarket account or API key?

No. The actor reads both venues' official public market-data APIs, so no login or key is needed.

### How much does this cost?

$2 per 1,000 market rows on the Apify Free plan (down to $1.40 on higher plans). With maxResults 20 a run costs about 4 cents.

### Can I compare the same event on both venues?

Yes. Both venues use the same fields and 0-1 prices, so rows for the same Fed meeting line up side by side.

## About this Actor

This example demonstrates how to use [Prediction Markets Odds API - Kalshi + Polymarket in one schema](https://apify.com/cleandatalabs/prediction-markets-odds.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/cleandatalabs/prediction-markets-odds.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/cleandatalabs/prediction-markets-odds.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`).