Service metadata and endpoint list
API · /montecarlo-api
Monte Carlo API
healthy
3,400 Subscribers
Live Monte-Carlo simulation for price and portfolio forecasting that quants, traders and planners run to model uncertainty — computed on demand and reproducibly, no key, nothing cached. Run a geometric-Brownian-motion simulation of an asset and get the terminal-price distribution (percentiles, mean, probability of a gain); get the modelled chance of reaching a target price; project wealth over many years with periodic contributions (a retirement / savings projection); and return one sample price path for charting. Every run is seeded, so the same inputs always give the same numbers. A forward-looking simulation engine, distinct from historical-statistics and option-pricing tools — it turns a drift and volatility into a distribution of outcomes.
api.oanor.com/montecarlo-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 88 ms
- Server probes · 24h
- Subscribers
- 3,400
- active
- Total calls
- 100
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 4,650 calls / month
- 3 requests / second
- Hard cap (429 above quota, no overage)
- 4.65k calls/month
- 3 req/sec
- Simulate, probability, portfolio & path
- No credit card
Starter
€7.25 /month
- 106,000 calls / month
- 10 requests / second
- Hard cap (429 above quota, no overage)
- 106k calls/month
- 10 req/sec
- Email support
Pro
€18.75 /month
- 520,000 calls / month
- 25 requests / second
- Hard cap (429 above quota, no overage)
- 520k calls/month
- 25 req/sec
- Priority support
Business
€45.00 /month
- 3,180,000 calls / month
- 55 requests / second
- Hard cap (429 above quota, no overage)
- 3.18M calls/month
- 55 req/sec
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
Strategy Simulator API
Live Monte-Carlo simulation of a trading strategy's outcome that traders run to judge an edge — computed on demand and reproducibly, no key, nothing cached. Run a sequence of trades many times from a win rate, reward-to-risk payoff and risk-per-trade, and get the distribution of final equity, the probability of profit, the probability of ruin and the drawdown distribution; get the modelled chance of blowing up the account; or get the analytical edge — expectancy per trade, breakeven win rate and profit factor. Every run is seeded, so the same inputs always give the same numbers. A strategy-outcome engine, distinct from position-sizing tools and price simulators: it turns an edge into the equity, drawdown and ruin a strategy faces.
api.oanor.com/strategysim-api
Kalshi Event Markets API
Live market data from Kalshi, the CFTC-regulated US event-contract exchange, served from its public trade API. Kalshi lists yes/no contracts that settle on real-world outcomes — elections, economics, Federal Reserve decisions, weather, sports and world events — and the executed price is the market-implied probability of that outcome. The trades endpoint returns the recent public trade tape: the executed price (as cents and as a 0-1 probability), the size, the taker side and the time — the live pulse of what is actually trading. The events endpoint lists the events (the questions) that group markets, with their category and series. The markets endpoint is the contract directory — every tradable market with its ticker, the yes outcome it settles on, its status and open/close times — filterable by event, series or status. This is a regulated real-money event-contract venue — live implied probabilities and order flow — distinct from the play-money (Manifold), political (PredictIt) and crypto (Polymarket) prediction-market APIs in the catalogue. Live order-book snapshots are gated behind authentication upstream, so prices are sourced from the public trade tape. Live, no key on the upstream, nothing stored.
api.oanor.com/kalshi-api
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
PredictIt Political Markets API
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
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Monte Carlo API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Monte Carlo API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Monte Carlo 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 Monte Carlo API cost?
Monte Carlo API has a free tier with 100 calls / month. Paid plans start at €7.25 / 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 Monte Carlo API GDPR-compliant?
All requests to Monte Carlo 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/montecarlo-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/montecarlo-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/montecarlo-api/SOME_PATH");
curl_setopt($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/montecarlo-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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