ParseForge
PredictIt Markets Scraper
parseforge/predictit-markets-scraper
AutomationIntegrationsNews & media
Scrapes PredictIt market data including prices, volumes, and contract details. Filter by market name and export to JSON, CSV, Excel, or XML.
- Total users
- 2
- Monthly active
- 1
- Total runs
- 87
- Bookmarked
- 0
- Rating
- Not rated yet
- Last modified
- 9 days ago
Overview
PredictIt Markets Scraper
Scrape PredictIt market data, including prices, volumes, and contract details, up to a million markets per run. Filter by market name and export to JSON, CSV, Excel, or XML. No login or API key required.
PredictIt's official API requires registration and rate limits. This actor reads the public market listings directly, filtered by market name, and returns each market in one fixed schema. It is ideal for election forecasting, algorithmic trading, and arbitrage research.
| Who uses it | What they scrape PredictIt for |
|---|---|
| Political analysts | Track which election markets are moving and why |
| Algorithmic traders | Feed real-time market data into trading models |
| Arbitrage researchers | Compare PredictIt prices with other prediction markets |
| Academic researchers | Collect historical market data for studies |
| Journalists | Monitor political betting odds for stories |
What it does
This Actor collects PredictIt markets by name filter and returns each one as a flat row with its contract prices, volumes, and other details.
- 📊 Market data: contract prices, volumes, and market details in one flat row.
- 🔍 Name filter: case-insensitive substring match on market name to narrow results.
- ⚙️ Max items: set a limit from 1 to 1,000,000 markets per run.
- 📁 Export formats: JSON, CSV, Excel, or XML for easy integration.
Results export to CSV, JSON, Excel, or XML, or straight from the API.
What you can do with PredictIt data
📈 Track election odds.
A political analyst runs the scraper daily with a filter for 'president' to monitor price changes and volume spikes in key markets.
🤖 Feed trading algorithms.
A quant trader schedules the actor to collect all markets every hour and pipes the JSON into a model that detects mispricings.
🔎 Find arbitrage opportunities.
A researcher compares PredictIt contract prices with Polymarket or Kalshi to spot cross-platform discrepancies.
📚 Build historical datasets.
An academic runs the scraper weekly and stores CSV snapshots to analyze long-term prediction market accuracy.
📰 Monitor political sentiment.
A journalist sets a filter for a specific candidate or issue and receives alerts when odds shift dramatically.
Why choose this scraper
| What you get | |
|---|---|
| No API key | Scrape public data without registration or rate limits |
| Flexible filtering | Target specific markets by name |
| Scalable | Collect up to a million markets per run |
| Structured output | Flat rows ready for analysis or databases |
How it compares
This actor focuses on PredictIt market data with a simple name filter and high item limit, while competitors may offer additional features like comments or cross-platform arbitrage.
| Feature | ParseForge | Polymarket + Kalshi Arbitrage Finder | PredictIt Markets Scraper | PredictIt Comments Scraper |
|---|---|---|---|---|
| Scrapes PredictIt markets | Yes | Not listed | Yes | Not listed |
| Filter by market name | Yes | Not listed | Not listed | Not listed |
| Max items limit | Yes | Not listed | Not listed | Not listed |
| Export to JSON, CSV, Excel, XML | Yes | Not listed | Yes | Yes |
| Scrapes comments | No | Not listed | Not listed | Yes |
| Arbitrage detection | No | Yes | Not listed | Not listed |
Configure the run
Drive the Actor with a market name substring and a maximum number of markets, and filters run as each market is read so only matches reach your dataset. The Input tab lists every parameter.
A first run with the defaults:
{
"maxItems": 10
}
A larger pull:
{
"maxItems": 200
}
Pricing
Pay-per-result: $0.0085 per result collected. You pay only for the results written to your dataset.
| Results collected | Approximate cost |
|---|---|
| 100 results | $0.85 |
| 1,000 results | $8.50 |
| 10,000 results | $85.00 |
New Apify accounts start with $5 in free credit.
Free users
Free-plan runs return up to 10 results as a preview. Upgrade your Apify plan to collect up to 1,000,000 results per run.
Run it
- Create a free Apify account with $5 in credit.
- Open the PredictIt Markets Scraper.
- Set your inputs and any filters, then click Start.
- Export the results as CSV, Excel, JSON, or XML from the Dataset tab.
Run it programmatically through the Apify API (run-sync-get-dataset-items) or the ApifyClient for JavaScript and Python.
Use with AI agents (MCP)
Give an AI agent live access to PredictIt through the Model Context Protocol. Add the Actor to Claude, Cursor, or any MCP client:
claude mcp add --transport http apify "https://mcp.apify.com?tools=parseforge/predictit-markets-scraper"
Then prompt it in plain language to run the scraper and read back the results.
Troubleshooting
Why am I getting no results?
Your 'Filter by market name' may be too specific. Try a shorter substring or leave it empty to retrieve all markets.
Why is the run slow?
If you set a very high 'Maximum markets', the actor may take longer. Reduce the limit or narrow your filter.
Why are some markets missing?
PredictIt may have removed or renamed markets. Check the website directly to confirm availability.
Can I get historical data?
This actor only returns current listings. For historical data, you would need to run it periodically and store snapshots.
Why did the run fail?
Check the actor log for errors. It could be a temporary website issue; retry after a few minutes.
FAQ
| Question | Answer |
|---|---|
| Do I need a PredictIt API key? | No. This actor scrapes the public website directly, so no registration or API key is required. |
| What data does each market row include? | Each row includes the market name, contract prices, volumes, and other details as shown in the sample output. |
| Can I filter by market name? | Yes, use the 'Filter by market name' input to specify a case-insensitive substring. Leave it empty to get all markets. |
| How many markets can I scrape in one run? | You can set 'Maximum markets' from 1 to 1,000,000. The default is 10. |
| What export formats are supported? | You can export the results as JSON, CSV, Excel, or XML. |
| Is the data real-time? | The actor scrapes the current public listings at the time of the run, so it reflects the latest available data. |
| Can I schedule this actor to run automatically? | Yes, you can set up a schedule in Apify to run it at regular intervals. |
| Does this actor scrape comments or historical charts? | No, this actor focuses on market data. For comments, see the PredictIt Comments Scraper. For historical charts, consider other specialized actors. |
| Is it legal to scrape PredictIt? | Scraping public data is generally allowed, but you should review PredictIt's terms of service and comply with applicable laws. |
| What if I get no results? | Check your name filter. If it is too specific, try a broader substring or leave it empty to get all markets. |
Related actors
Browse the full ParseForge collection for more scrapers.
🆘 Need help? Email parseforge@protonmail.com with your run ID, your input, and what you expected.
⚠️ Disclaimer. This Actor is unofficial and is not affiliated with, endorsed by, or sponsored by PredictIt, Inc. It collects only publicly available data. You are responsible for using the collected data in compliance with the source's terms of service and applicable data-protection laws, including GDPR, CCPA, and PIPL. Do not use it to collect personal data unlawfully.
Input
| Field | Type | What it does | Default |
|---|---|---|---|
| maxItems | integer | How many markets to collect per run. | 10 |
| nameContains | string | Case-insensitive substring filter on market name. Empty = all. | not set |
Pricing
from $7.50 per 1,000 results
| Charged for | What it is | Price each |
|---|---|---|
| result | Single result in the default dataset. | $0.0075 to $0.0085 |
Tiered: the lower figure is the price on a higher Apify plan. Billing and the free credit live on Apify.
API
One POST returns the dataset directly. Same shape for every scraper in the library, so swapping the slug is the only change.
curl -X POST "https://api.apify.com/v2/acts/parseforge~predictit-markets-scraper/run-sync-get-dataset-items?token=$APIFY_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"helloWorld": 123
}' Examples
Input that runs as-is.
{
"helloWorld": 123
} Reviews
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Issues
We build and maintain this scraper, so a problem with it comes to us. Report it on the Apify listing and the thread stays attached to the scraper where the next person can find it: open an issue.
Broken and urgent, or you would rather not post in public? Write to parseforge@protonmail.com and it reaches the people who wrote it.