Every open market with question and contracts
API · /predictit-api
PredictIt Political Markets API
healthy
4,785 Subscribers
Live prices from PredictIt, the real-money political prediction market where traders buy and sell shares in the outcome of US elections, economic events and policy questions — served from PredictIt's public market-data feed, no key, nothing stored. Each market asks a question (for example "Which party will control the House?" or "Who will win the 2028 presidential election?") and holds one or more yes/no contracts whose price, between 0 and 1 US dollar, is the market-implied probability of that outcome — a contract trading at 0.27 means the market prices a 27% chance. The markets endpoint lists every open market with its question and contract count. The market endpoint returns a single market with every contract — last trade price, best buy and sell yes/no quotes, last close — and the implied probability. The search endpoint finds markets by keyword (president, Senate, Fed, shutdown). Read what bettors really think will happen, as live JSON. This is the political prediction-market / event-odds cut — distinct from the crypto prediction markets (Polymarket) and the play-money markets in the catalogue.
api.oanor.com/predictit-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 204 ms
- Server probes · 24h
- Subscribers
- 4,785
- active
- Total calls
- 4
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 21,000 calls / month
- 3 requests / second
- Hard cap (429 above quota, no overage)
- 21k calls/month
- 3 req/sec
- All endpoints
- No credit card
Analyst
€7.65 /month
- 235,000 calls / month
- 10 requests / second
- Hard cap (429 above quota, no overage)
- 235k calls/month
- 10 req/sec
- Email support
Pro
€22.70 /month
- 920,000 calls / month
- 28 requests / second
- Hard cap (429 above quota, no overage)
- 920k calls/month
- 28 req/sec
- Priority support
Scale
€53.70 /month
- 3,150,000 calls / month
- 60 requests / second
- Hard cap (429 above quota, no overage)
- 3.15M calls/month
- 60 req/sec
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
Futuur Prediction Markets API
Live prices from Futuur, a global prediction market where users trade on the outcome of real-world events across crypto, politics, sports, science and economics — in both real money (USDC) and play money — served from the public Futuur API, no key, nothing stored. Each market asks a question (for example "Which price will Bitcoin hit in 2026?") and holds two or more outcomes whose price, between 0 and 1, is the market-implied probability of that outcome — an outcome trading at 0.46 means the market prices a 46% chance. The markets endpoint lists markets, filterable by category and search term, each with its outcomes and prices. The market endpoint returns a single market with every outcome's real-money and play-money price (and implied probability) plus its category, status and close date. The categories endpoint lists the topic categories from Bitcoin to elections to sports. Read what a worldwide crowd is pricing in for the future, as live JSON. This is the global prediction-market / event-probability cut — distinct from the US-politics-only (PredictIt) and crypto-only (Polymarket) prediction markets and the price and FX APIs in the catalogue.
api.oanor.com/futuur-api
Manifold API
Live prediction-market and forecaster data from Manifold, the largest play-money prediction market and forecasting community, via its public API. On Manifold anyone can create a market and everyone trades with mana, the platform's play-money, so each market's price is a crowd-sourced probability and every trader has a track record. Search markets and get each one's question, current probability, mana volume, unique-bettor count, liquidity and creator. Read one market in full, with its description and close time. See the top holders of a market — who is forecasting which way and how much mana they have invested. Read a forecaster's profile: their mana balance, all-time profit and how many markets they have created. Live, no key, nothing stored. Distinct from real-money prediction-market and sports-odds APIs — this is Manifold's community markets, their crowd probabilities and their forecasters. Perfect for forecasting, trading-signal, research and community apps.
api.oanor.com/manifold-api
Polymarket API
Live prediction-market data from Polymarket, the largest real-money prediction market, via its public Gamma API. On Polymarket people trade shares in the outcome of real-world events, so each market's price is a live, money-backed probability. Get the most active markets, each with its outcomes and their implied probabilities, the best bid and ask, the traded volume and the liquidity. Read one market in full, including its description and resolution date. Pull the biggest events — an event groups related markets, like a championship with one market per team — with their total volume and market count. Get one event with every sub-market and its current probability, the whole field at a glance. Live, no key, nothing stored. Distinct from sports-betting-odds and price-feed APIs — this is Polymarket's money-backed event probabilities and its markets. Perfect for forecasting, trading-signal, news and analytics apps.
api.oanor.com/polymarket-api
European Parliament API
The European Parliament as an API, powered by the official European Parliament Open Data portal (data.europarl.europa.eu). Track the EU's directly-elected legislature: list the Members of the European Parliament (MEPs) for any parliamentary term — term 10 is the current 2024-2029 Parliament — with pagination; read an individual MEP's profile including their full name, country of representation, gender, contact email, official photo and place of birth, together with their committee, political-group and delegation memberships split into current and past, each with the role held (member, chair, vice-chair, …) and start/end dates; and browse the Parliament's corporate bodies — its standing and special committees (such as ECON, ENVI, LIBE), political groups and inter-parliamentary delegations — with their id, acronym, label and type. The organization id that appears in an MEP's memberships matches a corporate body, so you can resolve exactly which committee or group a member sits on. Ideal for civic-tech and transparency tools, political research and journalism, lobbying and public-affairs monitoring, and EU-policy analytics. MEP ids come from the MEPs endpoint. Data from the European Parliament (CC-BY 4.0).
api.oanor.com/europarl-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for PredictIt Political Markets API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call PredictIt Political Markets API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for PredictIt Political Markets API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does PredictIt Political Markets API cost?
PredictIt Political Markets API has a free tier with 100 calls / month. Paid plans start at €7.65 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is PredictIt Political Markets API GDPR-compliant?
All requests to PredictIt Political Markets API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/predictit-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/predictit-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/predictit-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/predictit-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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