curl --request POST \
--url https://core-api.adipredictstreet.com/api/vault/split-signature \
--header 'Content-Type: application/json' \
--header 'X-Api-Key: <api-key>' \
--data '
{
"marketId": "NC26-BIN-83479265",
"amount": "30"
}
'import requests
url = "https://core-api.adipredictstreet.com/api/vault/split-signature"
payload = {
"marketId": "NC26-BIN-83479265",
"amount": "30"
}
headers = {
"X-Api-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({marketId: 'NC26-BIN-83479265', amount: '30'})
};
fetch('https://core-api.adipredictstreet.com/api/vault/split-signature', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://core-api.adipredictstreet.com/api/vault/split-signature",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'marketId' => 'NC26-BIN-83479265',
'amount' => '30'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-Api-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://core-api.adipredictstreet.com/api/vault/split-signature"
payload := strings.NewReader("{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://core-api.adipredictstreet.com/api/vault/split-signature")
.header("X-Api-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://core-api.adipredictstreet.com/api/vault/split-signature")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}"
response = http.request(request)
puts response.read_body{
"pendingSplitId": "<string>",
"kind": 123,
"collateralToken": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3",
"conditionId": "<string>",
"partition": [
"1",
"2"
],
"salt": "<string>",
"deadline": 123,
"vaultAddress": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3",
"backendSig": "<string>",
"amount": "<string>"
}{
"error": {
"code": "bad_request",
"message": "<string>",
"details": {},
"trace_id": "<string>"
},
"status": 400
}Get backend co-signature for vault.splitPosition
Returns the backend co-signature needed to call vault.splitPosition(...) on-chain. The flow: (1) POST this endpoint with {marketId, amount} → server signs the SplitPosition typed-data and returns the cosig + salt + deadline. (2) Sign the same struct yourself with your EOA against the vault’s EIP-712 domain. (3) Submit vault.splitPosition(kind, collateralToken, conditionId, partition, amount, salt, deadline, ownerSig, backendSig) on-chain. After it confirms, the vault holds equal units of YES + NO ERC-1155, and SELL orders on either outcome become possible.
curl --request POST \
--url https://core-api.adipredictstreet.com/api/vault/split-signature \
--header 'Content-Type: application/json' \
--header 'X-Api-Key: <api-key>' \
--data '
{
"marketId": "NC26-BIN-83479265",
"amount": "30"
}
'import requests
url = "https://core-api.adipredictstreet.com/api/vault/split-signature"
payload = {
"marketId": "NC26-BIN-83479265",
"amount": "30"
}
headers = {
"X-Api-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({marketId: 'NC26-BIN-83479265', amount: '30'})
};
fetch('https://core-api.adipredictstreet.com/api/vault/split-signature', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://core-api.adipredictstreet.com/api/vault/split-signature",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'marketId' => 'NC26-BIN-83479265',
'amount' => '30'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-Api-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://core-api.adipredictstreet.com/api/vault/split-signature"
payload := strings.NewReader("{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://core-api.adipredictstreet.com/api/vault/split-signature")
.header("X-Api-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://core-api.adipredictstreet.com/api/vault/split-signature")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"marketId\": \"NC26-BIN-83479265\",\n \"amount\": \"30\"\n}"
response = http.request(request)
puts response.read_body{
"pendingSplitId": "<string>",
"kind": 123,
"collateralToken": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3",
"conditionId": "<string>",
"partition": [
"1",
"2"
],
"salt": "<string>",
"deadline": 123,
"vaultAddress": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3",
"backendSig": "<string>",
"amount": "<string>"
}{
"error": {
"code": "bad_request",
"message": "<string>",
"details": {},
"trace_id": "<string>"
},
"status": 400
}Authorizations
Partner / integrator key — format ps_live_<keyId>_<secret>. Issued by PredictStreet ops on request; never self-service. Never ship to a browser. multi_wallet partners must additionally send X-User-Wallet: 0x<40-hex> on every authenticated request to declare the acting wallet. See the API keys guide for scope taxonomy, partner kinds, rate limits, and rotation procedure.
Headers
Required for multi_wallet partners on every authenticated request; ignored for single_wallet. Declares the acting end-user wallet for this request — drives KYC checks, balances/positions/orders attribution, rate-limit buckets, and audit. Lower-cased server-side. Missing on a multi_wallet key → 401 api_key_user_wallet_required; malformed → 401 api_key_user_wallet_invalid. The on-chain CTFExchange/Vault contracts still verify EIP-712 signer ↔ vault binding, so loosening API-layer attribution is safe by construction.
^0x[a-fA-F0-9]{40}$"0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3"
Body
Response
Backend co-signature ready
0 = binary, 1 = neg-risk.
^0x[a-fA-F0-9]{40}$"0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3"
^0x[0-9a-fA-F]{64}$["1", "2"]
EIP-712 verifyingContract for the SplitPosition struct (the vault, not the factory).
^0x[a-fA-F0-9]{40}$"0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3"
Backend co-signature; pair with the owner's EIP-712 signature in vault.splitPosition(...).
^0x[a-fA-F0-9]+$USDC wei (6-decimal).