Search markets

curl --request GET \
  --url https://api.probsights.com/v1/search/markets \
  --header 'X-API-Key: <api-key>'

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.probsights.com/v1/search/markets', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "market_id": "<string>",
  "exchange": "<string>",
  "series_id": "<string>",
  "title": "<string>",
  "subtitle": "<string>",
  "question": "<string>",
  "status": "<string>",
  "volume": 123,
  "liquidity": 123,
  "last_yes_price": "<string>",
  "last_no_price": "<string>",
  "event_id": "<string>",
  "event_title": "<string>",
  "slug": "<string>",
  "url": "<string>",
  "discovered_at": "<string>",
  "settled_at": "<string>",
  "coin": "<string>",
  "market_type": "<string>",
  "start_time": "<string>",
  "end_time": "<string>",
  "is_resolved": true
}

GET

markets

Search markets

curl --request GET \
  --url https://api.probsights.com/v1/search/markets \
  --header 'X-API-Key: <api-key>'

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.probsights.com/v1/search/markets', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "market_id": "<string>",
  "exchange": "<string>",
  "series_id": "<string>",
  "title": "<string>",
  "subtitle": "<string>",
  "question": "<string>",
  "status": "<string>",
  "volume": 123,
  "liquidity": 123,
  "last_yes_price": "<string>",
  "last_no_price": "<string>",
  "event_id": "<string>",
  "event_title": "<string>",
  "slug": "<string>",
  "url": "<string>",
  "discovered_at": "<string>",
  "settled_at": "<string>",
  "coin": "<string>",
  "market_type": "<string>",
  "start_time": "<string>",
  "end_time": "<string>",
  "is_resolved": true
}

Find markets by text query, by series_id, or by crypto asset (coin). Use series_id from Search series to scope results to one product line, or use coin + market_type to browse Kalshi and Polymarket interval markets without a text query.

Request

https://api.probsights.com/v1/search/markets

Query parameters

string

Substring on question, title, subtitle, description, market id, slug, or exact interval_code. Required unless series_id or coin is set.

string

Filter to one series. Required unless q or coin is set.

string

Crypto asset filter: BTC, ETH, or SOL. Works on both Kalshi and Polymarket. Required for crypto browse mode unless q or series_id is set.

string

Interval filter when coin is set: 5m, 15m, 1hr (all coins); 4hr, 24hr (BTC only).

string

kalshi or polymarket.

string

Exact category match.

string

default:"active"

active or closed.

number

Minimum market volume.

number

Minimum market liquidity.

string

ISO 8601 lower bound on discovered_at.

string

ISO 8601; pair with status=closed for backtests.

string

ISO 8601 upper bound on settled_at.

string

relevance, newest, volume, liquidity, or start_time. Defaults to relevance when q is set, newest when only series_id is set, and start_time when only coin is set.

integer

default:"20"

Number of results (1–100).

integer

default:"0"

Pagination offset.

Response

Returns a JSON array of market objects.

string

Source market ticker / ID — use with historical endpoints.

string

kalshi or polymarket.

string

Parent series source ID.

string

Formatted market headline (Kalshi); may be null for Polymarket.

string

Compact disambiguator (strike or close time).

string

Market question text.

string

active or closed.

number

Traded volume.

number

Liquidity.

string

Last YES price as a four-decimal string (e.g. "0.9990").

string

Last NO price as a four-decimal string.

string

Parent event source ID.

string

Parent event title; may be null.

string

Polymarket slug when present, else null.

string

Exchange web page URL when available.

string

ISO 8601 timestamp when the market was first ingested.

string

Settlement time when closed, else null.

string

BTC, ETH, or SOL when populated on the market.

string

Interval code in API form (5m, 15m, 1hr, …) when interval_code is set.

string

Market window start (start_at or open_at).

string

Market window end (end_at or close_at).

boolean

Whether the market is marked resolved in ProbSights.

Examples

Active markets in a series

curl -H "X-API-Key: YOUR_API_KEY" \
  "https://api.probsights.com/v1/search/markets?series_id=KXBTC15M&status=active&limit=10"

import requests

response = requests.get(
    "https://api.probsights.com/v1/search/markets",
    headers={"X-API-Key": "YOUR_API_KEY"},
    params={"series_id": "KXBTC15M", "status": "active", "limit": 10},
)
markets = response.json()

Crypto interval browse

curl -H "X-API-Key: YOUR_API_KEY" \
  "https://api.probsights.com/v1/search/markets?coin=BTC&market_type=15m&exchange=kalshi&status=closed&limit=50"

import requests

response = requests.get(
    "https://api.probsights.com/v1/search/markets",
    headers={"X-API-Key": "YOUR_API_KEY"},
    params={
        "coin": "SOL",
        "market_type": "5m",
        "exchange": "polymarket",
        "status": "active",
        "limit": 20,
    },
)
markets = response.json()

Settled window for backtests

curl -H "X-API-Key: YOUR_API_KEY" \
  "https://api.probsights.com/v1/search/markets?series_id=KXBTC15M&status=closed&settled_after=2026-04-25T00:00:00Z&limit=100"

import requests

response = requests.get(
    "https://api.probsights.com/v1/search/markets",
    headers={"X-API-Key": "YOUR_API_KEY"},
    params={
        "series_id": "KXBTC15M",
        "status": "closed",
        "settled_after": "2026-04-25T00:00:00Z",
        "limit": 100,
    },
)
markets = response.json()

Getting started

Search

Historical

Arbitrage

Whales

Webhooks

Search markets

Request

Query parameters

Response

Examples

Active markets in a series

Crypto interval browse

Settled window for backtests