Manifold Markets Predictions Scraper

Manifold Markets Predictions Scraper

Scrape Manifold Markets prediction markets by creator, resolved status, or up to a million per run. Every market comes with its probability, volume, liquidity, creator, and resolution data. No API key. Export to CSV, JSON, Excel, or XML.

Manifold Markets' official API needs an API key and rate-limits you. This reads the public market feeds directly, filtered by creator username or resolved status, and returns each match in one fixed schema.

Who uses it	What they scrape Manifold Markets for
Market researchers	Which predictions a creator is making this week
Traders	Finding mispriced markets by comparing probability and volume
Data journalists	Tracking resolution rates across a set of markets
Quant analysts	Building a dataset of historical market outcomes

What it does

This Actor collects Manifold Markets prediction markets by creator username or resolved status, and returns each one as a flat row.

• 🔍 Creator filter: collect every market from one username, active and resolved.
• ✅ Resolved toggle: include or exclude resolved markets with one checkbox.
• 📊 Flat rows: each market is one row, ready for CSV, JSON, Excel, or XML.
• ⚡ Up to a million markets: set maxItems and let the Actor paginate for you.

Results export to CSV, JSON, Excel, or XML, or straight from the API.

What you can do with Manifold Markets data

📈 Track a creator's markets.

A trader enters a creator username and gets every market that creator has made, with current probability and volume, to spot which topics they are confident about.

🧪 Backtest resolution rates.

A quant analyst sets includeResolved to true and collects thousands of resolved markets to measure how often high-probability markets resolve YES.

📰 Monitor prediction trends.

A data journalist runs the Actor daily with no filters and exports the newest markets to see which events are attracting the most liquidity.

💰 Find mispriced markets.

A trader compares probability against volume and liquidity across all markets from a creator to identify markets where the crowd may be wrong.

Why choose this scraper

	What you get
No API key	Reads public feeds directly, no registration or OAuth
Fixed schema	Every market returns the same fields, no surprises
Resolved included	Historical markets are available for backtesting
Bulk export	One run can collect up to a million markets

How it compares

This Actor focuses on Manifold Markets only, with creator and resolved filters, while the other two cover different scopes or field sets.

Feature	ParseForge	Prediction Market Odds API	Manifold Markets Scraper
Manifold Markets only	Yes	Not listed	Yes
Filter by creator username	Yes	Not listed	Not listed
Include resolved markets toggle	Yes	Not listed	Not listed
Up to 1,000,000 markets per run	Yes	Not listed	Not listed
Polymarket and Kalshi data	Not listed	Yes	Not listed
Normalized implied probabilities	Not listed	Yes	Not listed

Configure the run

Drive the Actor from a creator username and a resolved toggle, 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

1. Create a free Apify account with $5 in credit.
2. Open the Manifold Markets Predictions Scraper.
3. Set your inputs and any filters, then click Start.
4. 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 Manifold Markets 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/manifold-markets-scraper"

Then prompt it in plain language to run the scraper and read back the results.

Troubleshooting

Why am I getting no results?

Check your creatorUsername filter. If the username does not exist or has no markets, the Actor returns an empty dataset. Try removing the filter and running again.

Why did my run stop before reaching maxItems?

The Actor stops when it has collected maxItems markets or when there are no more markets matching your filters. Lower maxItems or broaden your filters to collect more.

Why are some fields empty in my dataset?

Some fields, like resolution data, are only present for resolved markets. If you set includeResolved to false, those fields will be empty for active markets.

Can I get markets from a specific date range?

This Actor does not support date filtering directly. You can filter by creator username and resolved status, then sort or filter the exported dataset by date in your own tooling.

FAQ

Question	Answer
Do I need a Manifold Markets API key?	No. This Actor reads the public market feeds directly, so no API key, OAuth, or app registration is required.
Can I scrape resolved markets?	Yes. Set includeResolved to true (the default) to include resolved markets, or false to get only active markets.
How many markets can I collect in one run?	Set maxItems to any number from 1 to 1,000,000. The Actor will paginate through the public feeds until it reaches your limit.
Can I filter by creator username?	Yes. Enter a creator username in the creatorUsername field and the Actor will return only markets created by that user.
What format is the data returned in?	Each market is returned as a flat row. You can export the dataset as CSV, JSON, Excel, or XML from the Apify platform.
Does this Actor include market probability and volume?	Yes. Every market row includes its current probability, volume, liquidity, creator, close date, and resolution data when available.
Is this Actor affiliated with Manifold Markets?	No. This is an independent scraper built on Apify. It is not affiliated with or endorsed by Manifold Markets, Inc.
Can I run this Actor on a schedule?	Yes. You can schedule recurring runs on the Apify platform, for example daily or hourly, to keep your dataset fresh.
What if a market has no creator username?	If you leave creatorUsername empty, the Actor returns markets from all creators, up to maxItems.
Does the Actor handle rate limits?	Yes. The Actor manages request pacing and retries automatically, so you do not need to handle rate limits yourself.

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 Manifold Markets, 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.