cURL
KEY="your-key-id"
SECRET="your-secret"
METHOD="GET"
URLPATH="/predictions-service/api/transactions?limit=20"
BODY=""
TS=$(( $(date +%s) * 1000 ))
SIG=$(printf '%s' "$TS$METHOD$URLPATH$BODY" | openssl dgst -sha256 -hmac "$SECRET" -binary | base64)
curl -X "$METHOD" "https://api.splashsports.com$URLPATH" \
-H "SPLASH-ACCESS-KEY: $KEY" \
-H "SPLASH-ACCESS-TIMESTAMP: $TS" \
-H "SPLASH-ACCESS-SIGNATURE: $SIG"import base64, hashlib, hmac, json, time
import requests
KEY = "your-key-id"
SECRET = "your-secret"
HOST = "https://api.splashsports.com"
def sign(secret, timestamp, method, path, body):
message = (timestamp + method + path + body).encode("utf-8")
digest = hmac.new(secret.encode("utf-8"), message, hashlib.sha256).digest()
return base64.b64encode(digest).decode("ascii")
def request(method, path, payload=None):
body = json.dumps(payload, separators=(",", ":")) if payload is not None else ""
timestamp = str(int(time.time() * 1000))
headers = {
"Content-Type": "application/json",
"SPLASH-ACCESS-KEY": KEY,
"SPLASH-ACCESS-TIMESTAMP": timestamp,
"SPLASH-ACCESS-SIGNATURE": sign(SECRET, timestamp, method, path, body),
}
return requests.request(method, HOST + path, headers=headers, data=body.encode("utf-8"))
response = request("GET", "/predictions-service/api/transactions?limit=20")
print(response.status_code, response.json())const options = {
method: 'GET',
headers: {
'SPLASH-ACCESS-KEY': '<api-key>',
'SPLASH-ACCESS-TIMESTAMP': '<api-key>',
'SPLASH-ACCESS-SIGNATURE': '<api-key>'
}
};
fetch('https://api.splashsports.com/predictions-service/api/transactions', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import { createHmac } from "node:crypto";
const KEY = "your-key-id";
const SECRET = "your-secret";
const HOST = "https://api.splashsports.com";
function sign(secret: string, timestamp: string, method: string, path: string, body: string): string {
return createHmac("sha256", secret).update(timestamp + method + path + body, "utf8").digest("base64");
}
const method = "GET";
const path = "/predictions-service/api/transactions?limit=20";
const body = "";
const timestamp = Date.now().toString();
const response = await fetch(HOST + path, {
method,
headers: {
"SPLASH-ACCESS-KEY": KEY,
"SPLASH-ACCESS-TIMESTAMP": timestamp,
"SPLASH-ACCESS-SIGNATURE": sign(SECRET, timestamp, method, path, body),
},
});
console.log(response.status, await response.json());package main
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"encoding/base64"
"fmt"
"io"
"net/http"
"strconv"
"time"
)
const (
key = "your-key-id"
secret = "your-secret"
host = "https://api.splashsports.com"
)
func sign(secret, timestamp, method, path string, body []byte) string {
mac := hmac.New(sha256.New, []byte(secret))
mac.Write([]byte(timestamp + method + path))
mac.Write(body)
return base64.StdEncoding.EncodeToString(mac.Sum(nil))
}
func main() {
method := "GET"
path := "/predictions-service/api/transactions?limit=20"
var body []byte // no body: the signature covers the empty string
timestamp := strconv.FormatInt(time.Now().UnixMilli(), 10)
req, err := http.NewRequest(method, host+path, bytes.NewReader(body))
if err != nil {
panic(err)
}
req.Header.Set("SPLASH-ACCESS-KEY", key)
req.Header.Set("SPLASH-ACCESS-TIMESTAMP", timestamp)
req.Header.Set("SPLASH-ACCESS-SIGNATURE", sign(secret, timestamp, method, path, body))
resp, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
out, _ := io.ReadAll(resp.Body)
fmt.Println(resp.StatusCode, string(out))
}{
"status": "success",
"data": [
{
"id": "tx_6af0d057a1c94e2b8d3f60a7c5e1b28d",
"type": "order",
"effect": "credit",
"amount": 6.55,
"title": "Markets - Sold",
"market_title": "KC @ BUF • Chiefs to win",
"created_at": 1794166871236,
"order": {
"id": "ord_6af0d056c50d27e8a6b19f34d0e8c3a1",
"side": "yes",
"yes_price": 0.665,
"no_price": 0.335,
"quantity": 10,
"status": "executed",
"fill_cost": 0,
"updated_at": 1794166871236,
"created_at": 1794166870000,
"executed_at": 1794166871236,
"remaining_quantity": 0,
"fill_quantity": 10,
"fees": 0.1,
"action": "sell",
"splash_action": "sell",
"proceeds": 6.65,
"splash_side": "yes",
"trade_price": 0.655,
"proceeds_minus_fees": 6.55,
"fill_cost_plus_fees": 0,
"request_id": "c47b19e2-0f6d-4b8a-a3e5-71d9f2c08a56",
"time_in_force": "FOK"
},
"market": {
"id": "pm_6ae1e3c09e1d4c7a2b5f80e3d6a9c412",
"provider_ticker": "aec-nfl-kc-buf-2026-11-08",
"title": "Kansas City Chiefs to win the game?",
"sub_category": "nfl",
"type": "moneyline",
"event_id": "4b1e9c2a-7d3f-4e5a-8b6c-9d0e1f2a3b4c",
"event_start": 1794160800000,
"moneyline_type": "two_way",
"team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"yes_team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"no_team_id": "768c92aa-75ff-4a43-bcc0-f2fe5c1f0a3e",
"price_yes": {
"american": "-144",
"decimal": "1.69x",
"percentage": "59%",
"price": "$0.59",
"numeric_price": 0.59
},
"price_no": {
"american": "+138",
"decimal": "2.38x",
"percentage": "42%",
"price": "$0.42",
"numeric_price": 0.42
},
"volume": 184532.17,
"liquidity": 9266.25,
"yes_liquidity": 5378.8,
"no_liquidity": 4334.95,
"last_price_yes": 0.585,
"last_price_no": 0.415,
"status": "active",
"updated_at": 1793977442118,
"rules": "This market resolves to \"Yes\" if the Kansas City Chiefs win their game against the Buffalo Bills scheduled for November 8, 2026. It resolves to \"No\" if the Buffalo Bills win. If the game ends in a tie, is canceled, or is postponed past November 15, 2026, the market resolves 50-50.",
"market_group_id": "pmgm_6ae1e3c0a3f19c0d7e2b4c58e61f9d02"
}
},
{
"id": "tx_6aedec66e2b7c4a9f0d18e53b6a2c7f4",
"type": "order",
"effect": "debit",
"amount": 5.97,
"title": "Markets - Bought",
"market_title": "KC @ BUF • Chiefs to win",
"created_at": 1793977446412,
"order": {
"id": "ord_6aedec658f3a61c2d94e07b5a1c6e2d9",
"side": "yes",
"yes_price": 0.585,
"no_price": 0.415,
"quantity": 10,
"status": "executed",
"fill_cost": 5.85,
"updated_at": 1793977446412,
"created_at": 1793977445000,
"executed_at": 1793977446412,
"remaining_quantity": 0,
"fill_quantity": 10,
"fees": 0.12,
"action": "buy",
"splash_action": "buy",
"proceeds": 0,
"splash_side": "yes",
"trade_price": 0.597,
"proceeds_minus_fees": 0,
"fill_cost_plus_fees": 5.97,
"request_id": "3f1c2a9e-5b7d-4e0a-9c1d-8a6b2e4f7d10",
"time_in_force": "FOK"
},
"market": {
"id": "pm_6ae1e3c09e1d4c7a2b5f80e3d6a9c412",
"provider_ticker": "aec-nfl-kc-buf-2026-11-08",
"title": "Kansas City Chiefs to win the game?",
"sub_category": "nfl",
"type": "moneyline",
"event_id": "4b1e9c2a-7d3f-4e5a-8b6c-9d0e1f2a3b4c",
"event_start": 1794160800000,
"moneyline_type": "two_way",
"team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"yes_team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"no_team_id": "768c92aa-75ff-4a43-bcc0-f2fe5c1f0a3e",
"price_yes": {
"american": "-144",
"decimal": "1.69x",
"percentage": "59%",
"price": "$0.59",
"numeric_price": 0.59
},
"price_no": {
"american": "+138",
"decimal": "2.38x",
"percentage": "42%",
"price": "$0.42",
"numeric_price": 0.42
},
"volume": 184532.17,
"liquidity": 9266.25,
"yes_liquidity": 5378.8,
"no_liquidity": 4334.95,
"last_price_yes": 0.585,
"last_price_no": 0.415,
"status": "active",
"updated_at": 1793977442118,
"rules": "This market resolves to \"Yes\" if the Kansas City Chiefs win their game against the Buffalo Bills scheduled for November 8, 2026. It resolves to \"No\" if the Buffalo Bills win. If the game ends in a tie, is canceled, or is postponed past November 15, 2026, the market resolves 50-50.",
"market_group_id": "pmgm_6ae1e3c0a3f19c0d7e2b4c58e61f9d02"
}
}
],
"total": 2,
"offset": 0,
"limit": 50
}Activity
List transactions
Every movement of cash your trading caused, newest first: each order that filled (type: order, a debit for a buy and a credit for a sale) and each settlement payout (type: settlement, always a credit). When a market settles, a position on the winning side is closed and its payout appears here as a settlement transaction, with the record (the result, the price each contract paid and the contracts held) in settlement. A position that settles worthless pays nothing and adds no transaction. Orders that did not fill add none either; follow those with List orders.
Use from and to (ISO 8601 timestamps with a time zone) to read a period, and limit and offset to page. amount is always positive; effect says which way the cash moved. To see how a position ended, use Get a position; for its settlement record, use this list.
Sign the request with your API key; see Authentication. It always reads the key’s own account: a user_id query parameter is refused with a 401.
GET
/
transactions
cURL
KEY="your-key-id"
SECRET="your-secret"
METHOD="GET"
URLPATH="/predictions-service/api/transactions?limit=20"
BODY=""
TS=$(( $(date +%s) * 1000 ))
SIG=$(printf '%s' "$TS$METHOD$URLPATH$BODY" | openssl dgst -sha256 -hmac "$SECRET" -binary | base64)
curl -X "$METHOD" "https://api.splashsports.com$URLPATH" \
-H "SPLASH-ACCESS-KEY: $KEY" \
-H "SPLASH-ACCESS-TIMESTAMP: $TS" \
-H "SPLASH-ACCESS-SIGNATURE: $SIG"import base64, hashlib, hmac, json, time
import requests
KEY = "your-key-id"
SECRET = "your-secret"
HOST = "https://api.splashsports.com"
def sign(secret, timestamp, method, path, body):
message = (timestamp + method + path + body).encode("utf-8")
digest = hmac.new(secret.encode("utf-8"), message, hashlib.sha256).digest()
return base64.b64encode(digest).decode("ascii")
def request(method, path, payload=None):
body = json.dumps(payload, separators=(",", ":")) if payload is not None else ""
timestamp = str(int(time.time() * 1000))
headers = {
"Content-Type": "application/json",
"SPLASH-ACCESS-KEY": KEY,
"SPLASH-ACCESS-TIMESTAMP": timestamp,
"SPLASH-ACCESS-SIGNATURE": sign(SECRET, timestamp, method, path, body),
}
return requests.request(method, HOST + path, headers=headers, data=body.encode("utf-8"))
response = request("GET", "/predictions-service/api/transactions?limit=20")
print(response.status_code, response.json())const options = {
method: 'GET',
headers: {
'SPLASH-ACCESS-KEY': '<api-key>',
'SPLASH-ACCESS-TIMESTAMP': '<api-key>',
'SPLASH-ACCESS-SIGNATURE': '<api-key>'
}
};
fetch('https://api.splashsports.com/predictions-service/api/transactions', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import { createHmac } from "node:crypto";
const KEY = "your-key-id";
const SECRET = "your-secret";
const HOST = "https://api.splashsports.com";
function sign(secret: string, timestamp: string, method: string, path: string, body: string): string {
return createHmac("sha256", secret).update(timestamp + method + path + body, "utf8").digest("base64");
}
const method = "GET";
const path = "/predictions-service/api/transactions?limit=20";
const body = "";
const timestamp = Date.now().toString();
const response = await fetch(HOST + path, {
method,
headers: {
"SPLASH-ACCESS-KEY": KEY,
"SPLASH-ACCESS-TIMESTAMP": timestamp,
"SPLASH-ACCESS-SIGNATURE": sign(SECRET, timestamp, method, path, body),
},
});
console.log(response.status, await response.json());package main
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"encoding/base64"
"fmt"
"io"
"net/http"
"strconv"
"time"
)
const (
key = "your-key-id"
secret = "your-secret"
host = "https://api.splashsports.com"
)
func sign(secret, timestamp, method, path string, body []byte) string {
mac := hmac.New(sha256.New, []byte(secret))
mac.Write([]byte(timestamp + method + path))
mac.Write(body)
return base64.StdEncoding.EncodeToString(mac.Sum(nil))
}
func main() {
method := "GET"
path := "/predictions-service/api/transactions?limit=20"
var body []byte // no body: the signature covers the empty string
timestamp := strconv.FormatInt(time.Now().UnixMilli(), 10)
req, err := http.NewRequest(method, host+path, bytes.NewReader(body))
if err != nil {
panic(err)
}
req.Header.Set("SPLASH-ACCESS-KEY", key)
req.Header.Set("SPLASH-ACCESS-TIMESTAMP", timestamp)
req.Header.Set("SPLASH-ACCESS-SIGNATURE", sign(secret, timestamp, method, path, body))
resp, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
out, _ := io.ReadAll(resp.Body)
fmt.Println(resp.StatusCode, string(out))
}{
"status": "success",
"data": [
{
"id": "tx_6af0d057a1c94e2b8d3f60a7c5e1b28d",
"type": "order",
"effect": "credit",
"amount": 6.55,
"title": "Markets - Sold",
"market_title": "KC @ BUF • Chiefs to win",
"created_at": 1794166871236,
"order": {
"id": "ord_6af0d056c50d27e8a6b19f34d0e8c3a1",
"side": "yes",
"yes_price": 0.665,
"no_price": 0.335,
"quantity": 10,
"status": "executed",
"fill_cost": 0,
"updated_at": 1794166871236,
"created_at": 1794166870000,
"executed_at": 1794166871236,
"remaining_quantity": 0,
"fill_quantity": 10,
"fees": 0.1,
"action": "sell",
"splash_action": "sell",
"proceeds": 6.65,
"splash_side": "yes",
"trade_price": 0.655,
"proceeds_minus_fees": 6.55,
"fill_cost_plus_fees": 0,
"request_id": "c47b19e2-0f6d-4b8a-a3e5-71d9f2c08a56",
"time_in_force": "FOK"
},
"market": {
"id": "pm_6ae1e3c09e1d4c7a2b5f80e3d6a9c412",
"provider_ticker": "aec-nfl-kc-buf-2026-11-08",
"title": "Kansas City Chiefs to win the game?",
"sub_category": "nfl",
"type": "moneyline",
"event_id": "4b1e9c2a-7d3f-4e5a-8b6c-9d0e1f2a3b4c",
"event_start": 1794160800000,
"moneyline_type": "two_way",
"team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"yes_team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"no_team_id": "768c92aa-75ff-4a43-bcc0-f2fe5c1f0a3e",
"price_yes": {
"american": "-144",
"decimal": "1.69x",
"percentage": "59%",
"price": "$0.59",
"numeric_price": 0.59
},
"price_no": {
"american": "+138",
"decimal": "2.38x",
"percentage": "42%",
"price": "$0.42",
"numeric_price": 0.42
},
"volume": 184532.17,
"liquidity": 9266.25,
"yes_liquidity": 5378.8,
"no_liquidity": 4334.95,
"last_price_yes": 0.585,
"last_price_no": 0.415,
"status": "active",
"updated_at": 1793977442118,
"rules": "This market resolves to \"Yes\" if the Kansas City Chiefs win their game against the Buffalo Bills scheduled for November 8, 2026. It resolves to \"No\" if the Buffalo Bills win. If the game ends in a tie, is canceled, or is postponed past November 15, 2026, the market resolves 50-50.",
"market_group_id": "pmgm_6ae1e3c0a3f19c0d7e2b4c58e61f9d02"
}
},
{
"id": "tx_6aedec66e2b7c4a9f0d18e53b6a2c7f4",
"type": "order",
"effect": "debit",
"amount": 5.97,
"title": "Markets - Bought",
"market_title": "KC @ BUF • Chiefs to win",
"created_at": 1793977446412,
"order": {
"id": "ord_6aedec658f3a61c2d94e07b5a1c6e2d9",
"side": "yes",
"yes_price": 0.585,
"no_price": 0.415,
"quantity": 10,
"status": "executed",
"fill_cost": 5.85,
"updated_at": 1793977446412,
"created_at": 1793977445000,
"executed_at": 1793977446412,
"remaining_quantity": 0,
"fill_quantity": 10,
"fees": 0.12,
"action": "buy",
"splash_action": "buy",
"proceeds": 0,
"splash_side": "yes",
"trade_price": 0.597,
"proceeds_minus_fees": 0,
"fill_cost_plus_fees": 5.97,
"request_id": "3f1c2a9e-5b7d-4e0a-9c1d-8a6b2e4f7d10",
"time_in_force": "FOK"
},
"market": {
"id": "pm_6ae1e3c09e1d4c7a2b5f80e3d6a9c412",
"provider_ticker": "aec-nfl-kc-buf-2026-11-08",
"title": "Kansas City Chiefs to win the game?",
"sub_category": "nfl",
"type": "moneyline",
"event_id": "4b1e9c2a-7d3f-4e5a-8b6c-9d0e1f2a3b4c",
"event_start": 1794160800000,
"moneyline_type": "two_way",
"team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"yes_team_id": "6680b4e0-5b6c-4bd1-8f6a-0b4f3b7d9a21",
"no_team_id": "768c92aa-75ff-4a43-bcc0-f2fe5c1f0a3e",
"price_yes": {
"american": "-144",
"decimal": "1.69x",
"percentage": "59%",
"price": "$0.59",
"numeric_price": 0.59
},
"price_no": {
"american": "+138",
"decimal": "2.38x",
"percentage": "42%",
"price": "$0.42",
"numeric_price": 0.42
},
"volume": 184532.17,
"liquidity": 9266.25,
"yes_liquidity": 5378.8,
"no_liquidity": 4334.95,
"last_price_yes": 0.585,
"last_price_no": 0.415,
"status": "active",
"updated_at": 1793977442118,
"rules": "This market resolves to \"Yes\" if the Kansas City Chiefs win their game against the Buffalo Bills scheduled for November 8, 2026. It resolves to \"No\" if the Buffalo Bills win. If the game ends in a tie, is canceled, or is postponed past November 15, 2026, the market resolves 50-50.",
"market_group_id": "pmgm_6ae1e3c0a3f19c0d7e2b4c58e61f9d02"
}
}
],
"total": 2,
"offset": 0,
"limit": 50
}Authorizations
Your API key id. Keys are issued by Splash on request, never expire, and stay valid until Splash revokes them, which it does on request. See Authentication.
Unix milliseconds, within 30 seconds of server time.
base64(HMAC-SHA256(secret, timestamp + METHOD + path + body)). See Authentication.
Query Parameters
Page size, 1 to 50. Default 50.
Required range:
1 <= x <= 50Transactions to skip, 0 or more. Default 0. Page with offset += limit and stop when offset + limit >= total.
Required range:
x >= 0Only transactions at or after this time. An ISO 8601 timestamp with a time zone, such as 2026-11-01T00:00:00Z or 2026-11-01T00:00:00-05:00; not epoch milliseconds. Anything else is a 400.
Only transactions at or before this time. The same format as from.
Response
Your transactions, newest first.
Your transactions, newest first.
Always success on a 200.
Allowed value:
"success"Example:
"success"
Your transactions, newest first by created_at. A transaction whose market can no longer be read is left out, so a page can hold fewer than limit items while total still counts it.
Show child attributes
Show child attributes
Transactions matching from and to, across all pages.
Example:
3
The offset the page starts at.
Example:
0
The page size.
Example:
50