curl --request POST \
--url https://api.alpha-labs.trade/api/v1/predictions/proposals \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"groupId": "1a9d212a-de67-45f4-88f5-6e9f41e78dc0",
"eventId": "presidential-election-winner-2028",
"marketId": "will-jd-vance-win-the-2028-us-presidential-election",
"isYes": true,
"amountUsd": "10.00",
"reason": "Vance value"
}
'import requests
url = "https://api.alpha-labs.trade/api/v1/predictions/proposals"
payload = {
"groupId": "1a9d212a-de67-45f4-88f5-6e9f41e78dc0",
"eventId": "presidential-election-winner-2028",
"marketId": "will-jd-vance-win-the-2028-us-presidential-election",
"isYes": True,
"amountUsd": "10.00",
"reason": "Vance value"
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
groupId: '1a9d212a-de67-45f4-88f5-6e9f41e78dc0',
eventId: 'presidential-election-winner-2028',
marketId: 'will-jd-vance-win-the-2028-us-presidential-election',
isYes: true,
amountUsd: '10.00',
reason: 'Vance value'
})
};
fetch('https://api.alpha-labs.trade/api/v1/predictions/proposals', 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://api.alpha-labs.trade/api/v1/predictions/proposals",
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([
'groupId' => '1a9d212a-de67-45f4-88f5-6e9f41e78dc0',
'eventId' => 'presidential-election-winner-2028',
'marketId' => 'will-jd-vance-win-the-2028-us-presidential-election',
'isYes' => true,
'amountUsd' => '10.00',
'reason' => 'Vance value'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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://api.alpha-labs.trade/api/v1/predictions/proposals"
payload := strings.NewReader("{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
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://api.alpha-labs.trade/api/v1/predictions/proposals")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.alpha-labs.trade/api/v1/predictions/proposals")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"proposal": {
"id": "<string>",
"groupId": "<string>",
"createdById": "<string>",
"eventId": "<string>",
"marketId": "<string>",
"outcomeMint": "<string>",
"eventTitle": "<string>",
"marketTitle": "<string>",
"eventImageUrl": "<string>",
"isYes": true,
"didWin": true,
"reason": "<string>",
"resolvedAt": "2023-11-07T05:31:56Z",
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
},
"trade": {
"id": "<string>",
"proposalId": "<string>",
"groupId": "<string>",
"walletAddress": "<string>",
"tokenAmount": "4.27",
"tokenDecimals": 123,
"pricePerTokenUsd": "12.50",
"totalCostUsd": "12.50",
"venueFeeUsd": "12.50",
"pnlPct": "4.27",
"pnlUsd": "12.50",
"txSignature": "<string>",
"createdAt": "2023-11-07T05:31:56Z"
},
"pending": true,
"actionJobId": "<string>"
}
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}Create prediction proposal
Create a prediction proposal with an initial prediction (group leader only). Takes an event/market reference — never a title; the backend resolves titles and the outcome token server-side. Buys must be at least $4 (AMOUNT_BELOW_MINIMUM) and clear the market’s venue minimum of typically 5 contracts at the current price (MIN_ORDER_SIZE; the error message includes the market’s dollar minimum). An ACTIVE or still-settling (PENDING) proposal for the same outcome in the group cannot be duplicated (400). Subject to regional restrictions (see Eligibility & geo restrictions).
curl --request POST \
--url https://api.alpha-labs.trade/api/v1/predictions/proposals \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"groupId": "1a9d212a-de67-45f4-88f5-6e9f41e78dc0",
"eventId": "presidential-election-winner-2028",
"marketId": "will-jd-vance-win-the-2028-us-presidential-election",
"isYes": true,
"amountUsd": "10.00",
"reason": "Vance value"
}
'import requests
url = "https://api.alpha-labs.trade/api/v1/predictions/proposals"
payload = {
"groupId": "1a9d212a-de67-45f4-88f5-6e9f41e78dc0",
"eventId": "presidential-election-winner-2028",
"marketId": "will-jd-vance-win-the-2028-us-presidential-election",
"isYes": True,
"amountUsd": "10.00",
"reason": "Vance value"
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
groupId: '1a9d212a-de67-45f4-88f5-6e9f41e78dc0',
eventId: 'presidential-election-winner-2028',
marketId: 'will-jd-vance-win-the-2028-us-presidential-election',
isYes: true,
amountUsd: '10.00',
reason: 'Vance value'
})
};
fetch('https://api.alpha-labs.trade/api/v1/predictions/proposals', 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://api.alpha-labs.trade/api/v1/predictions/proposals",
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([
'groupId' => '1a9d212a-de67-45f4-88f5-6e9f41e78dc0',
'eventId' => 'presidential-election-winner-2028',
'marketId' => 'will-jd-vance-win-the-2028-us-presidential-election',
'isYes' => true,
'amountUsd' => '10.00',
'reason' => 'Vance value'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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://api.alpha-labs.trade/api/v1/predictions/proposals"
payload := strings.NewReader("{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
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://api.alpha-labs.trade/api/v1/predictions/proposals")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.alpha-labs.trade/api/v1/predictions/proposals")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"groupId\": \"1a9d212a-de67-45f4-88f5-6e9f41e78dc0\",\n \"eventId\": \"presidential-election-winner-2028\",\n \"marketId\": \"will-jd-vance-win-the-2028-us-presidential-election\",\n \"isYes\": true,\n \"amountUsd\": \"10.00\",\n \"reason\": \"Vance value\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"proposal": {
"id": "<string>",
"groupId": "<string>",
"createdById": "<string>",
"eventId": "<string>",
"marketId": "<string>",
"outcomeMint": "<string>",
"eventTitle": "<string>",
"marketTitle": "<string>",
"eventImageUrl": "<string>",
"isYes": true,
"didWin": true,
"reason": "<string>",
"resolvedAt": "2023-11-07T05:31:56Z",
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
},
"trade": {
"id": "<string>",
"proposalId": "<string>",
"groupId": "<string>",
"walletAddress": "<string>",
"tokenAmount": "4.27",
"tokenDecimals": 123,
"pricePerTokenUsd": "12.50",
"totalCostUsd": "12.50",
"venueFeeUsd": "12.50",
"pnlPct": "4.27",
"pnlUsd": "12.50",
"txSignature": "<string>",
"createdAt": "2023-11-07T05:31:56Z"
},
"pending": true,
"actionJobId": "<string>"
}
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}{
"statusCode": 400,
"message": "Query parameter \"groupId\" is required",
"error": "Bad Request",
"code": "NOT_GROUP_MEMBER"
}Authorizations
Send your API key as Authorization: Bearer murmo_.... Keys are created in the Murmo app. Header-only — keys are never read from the query string. Valid for the REST API under /api/v1 only (not the GraphQL endpoint).
Body
Event slug (e.g. presidential-election-winner-2028), as returned by the events endpoints.
Market slug for the specific market within the event (e.g. will-jd-vance-win-the-2028-us-presidential-election); the side is chosen with isYes.
Buy the YES side (true) or NO side (false).
Minimum $4, and at least the market's venue minimum (typically 5 contracts at the current price — see MIN_ORDER_SIZE).
"12.50"
500Response
Created proposal and the opening trade (or a PENDING settling receipt).
Show child attributes
Show child attributes