# Oddpool

**Canonical:** https://apis.io/providers/oddpool/  
**Website:** https://www.oddpool.com  
**APIs profiled:** 2

Oddpool is an institutional-grade data platform for prediction markets, offering unified access to market data across Kalshi and Polymarket through a single REST API and WebSocket feed. It describes itself as "the search engine for prediction markets," normalizing hundreds of thousands of markets into a common model so quant funds, trading desks, and prosumer traders can search markets and events, pull tick-level historical orderbooks and OHLCV bars, track whale trades, detect cross-venue arbitrage, and stream real-time cross-venue probability distributions, orderbooks, and trades. Data is addressed by what (event and outcome keys) rather than by venue-specific tickers. A separate enterprise Reference Data API provides canonical cross-venue identifiers, fungibility classification, and a Wikidata cross-walk for institutional clients.

## Kin Score — 41.1 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 41.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 44.4 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 44.7 |
| Access Clarity | 44.7 |

Regulatory layer — **Securities & Market Data**: 41.7 (matched via tags).

## Agent readiness — 28.6 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (2)

- **Oddpool API** — REST API for prediction market data across Kalshi and Polymarket: full-text search over markets, events, and series; historical orderbook snapshots, top-of-book timeseries, trad...
- **Oddpool WebSocket Feeds** — Single-connection WebSocket streaming real-time, normalized cross-venue prediction market data (dist, book, trade, and snapshot channels) for macro economic events and crypto (B...

## MCP servers (1)

- **Oddpool MCP Server**

## Security (2)

- **Oddpool Authentication** — apiKey · 2 schemes
- **Oddpool Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Prediction Markets, Market Data, Financial Data, Trading, Fintech, Data Aggregation, WebSocket, Historical Data, Kalshi, Polymarket

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/oddpool/). Scores are computed from the provider's own public artifacts under a published rubric.