Probabl.ai

Live prediction market signals for modern apps

The Future Has a Probability. Now Your App Does Too.

Probabl.ai transforms real-time prediction markets into clean, developer-friendly API endpoints so you can build apps that think forward.

Real-time markets <100ms edge routing

Usage-based, transparent pricing

Global Outcome Probability

72.4% +4.3% today

Liquidity Depth $18.2M

Live Probability Streams ms latency snapshots

YES liquidity-weighted

NO liquidity-weighted

UTC stream

/v1/markets/{id}/probabilities

streaming · jsonl

probabl_live_stream.js

Live Probability Streams

// Subscribe to evolving predictions as markets shift.
import Probabl from 'probabl'

const client = new Probabl({
  apiKey: process.env.PROBABL_KEY,
})

await client.stream.probabilities({
  marketId: 'us-election-2028',
  interval: '500ms',
}, (tick) => {
  console.log({
    outcome: tick.outcome,
    probability: tick.p,
    confidence: tick.confidenceIndex,
    liquidity: tick.liquidityUsd,
  })
})

Node SDK

Real-time prediction infrastructure for forward-thinking teams.

Built for accuracy, latency, and clarity. Every response comes with probabilities, liquidity, and confidence—ready to wire into your product.

99.95% uptime · audited markets

Real-Time Market Intelligence

Instant access to live probabilities generated by real market participants.

Median spread 0.7%

Developer-First Architecture

Predictable endpoints, structured responses, and ultra-low latency.

P95 latency 42 ms

Regions 7 global

Built to Scale

From indie prototypes to enterprise forecasting systems, Probabl.ai grows with your product.

Events processed / day 4.2B+

Everything you need to price the future.

Core primitives that turn noisy markets into clean, actionable signals—designed for agents, traders, and researchers.

4 feature pillars

Live Probability Streams

WebSocket · SSE

Subscribe to evolving predictions as markets shift.

Tick-level updates

Backfill up to 12 months

Outcome Confidence Index

0–1 calibrated score

A proprietary score quantifying trust in each outcome.

Signal quality 0.93

Depth weight liquidity

Drift guard enabled

Event & Market Creation API

POST /v1/markets

Programmatically create markets or integrate external data.

Multi-outcome · continuous · binary KYC-ready rails

Analytics Hub

Interactive dashboards

Visual dashboards for liquidity, sentiment, and time-based probability curves.

Liquidity Depth map

Sentiment Flow bands

Curves Export CSV

Built for agents, traders, and decision-makers.

Wire Probabl.ai into your stack to turn every decision into a probability-backed choice.

API-first · UI optional

AI Agents

Give agents real-world probability signals instead of static heuristics.

Streaming-ready · tool-calling friendly

Finance & Trading Apps

Add markets, dashboards, and probability-driven decision tools.

Market-neutral data · audit trails

Gaming & Simulations

Import real-world outcomes into dynamic game economies.

Real-time hooks · sandbox environments

Research & Forecasting

Model real-world scenarios using transparent public sentiment.

Reproducible · export-friendly

Pricing that scales with your conviction.

Start free, validate your use case, and scale into dedicated infrastructure when prediction is mission-critical.

No credit card required to start

Free

Free — Up to 1,000 monthly requests

Pro

Wire probabilities directly into your product in minutes.

One API key, clean endpoints, and real-time prediction market data. No order books, no exchange plumbing—just probabilities.