Check Sandwich Attacks (Async)
curl --request POST \
--url https://api.soltop.sh/mev/check-sandwich \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"signatures": [
"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE"
],
"slot_range": 20
}
'import requests
url = "https://api.soltop.sh/mev/check-sandwich"
payload = {
"signatures": ["48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE"],
"slot_range": 20
}
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({
signatures: [
'48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE'
],
slot_range: 20
})
};
fetch('https://api.soltop.sh/mev/check-sandwich', 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.soltop.sh/mev/check-sandwich",
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([
'signatures' => [
'48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE'
],
'slot_range' => 20
]),
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.soltop.sh/mev/check-sandwich"
payload := strings.NewReader("{\n \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\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.soltop.sh/mev/check-sandwich")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.soltop.sh/mev/check-sandwich")
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 \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\n}"
response = http.request(request)
puts response.read_body{
"success": true,
"jobId": "mev-sandwich-check-abc123-1773915254896",
"status": "queued",
"message": "Sandwich check started. Poll /mev/job-status/:jobId for updates."
}MEV Analysis
Check Sandwich Attacks (Async)
Check one or more transaction signatures for sandwich attacks within a configurable slot range. Submits an async job and returns a jobId. Poll /mev/job-status/:jobId for results. Results are cached for 5 minutes. Uses RPC pre-lookup for efficient ClickHouse partition pruning. Detection covers cross-slot and intra-slot (same PoH tick) ordering via entry_index/tx_index.
POST
/
mev
/
check-sandwich
Check Sandwich Attacks (Async)
curl --request POST \
--url https://api.soltop.sh/mev/check-sandwich \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"signatures": [
"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE"
],
"slot_range": 20
}
'import requests
url = "https://api.soltop.sh/mev/check-sandwich"
payload = {
"signatures": ["48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE"],
"slot_range": 20
}
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({
signatures: [
'48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE'
],
slot_range: 20
})
};
fetch('https://api.soltop.sh/mev/check-sandwich', 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.soltop.sh/mev/check-sandwich",
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([
'signatures' => [
'48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE'
],
'slot_range' => 20
]),
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.soltop.sh/mev/check-sandwich"
payload := strings.NewReader("{\n \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\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.soltop.sh/mev/check-sandwich")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.soltop.sh/mev/check-sandwich")
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 \"signatures\": [\n \"48kLA6633tthDaBHTpzv9qXFkypFajpzyAd7hP8xRu8ggr8VhG5NXUKs7M2SYi57ntDKwPEqFgUGHrvXVd7pzFRE\"\n ],\n \"slot_range\": 20\n}"
response = http.request(request)
puts response.read_body{
"success": true,
"jobId": "mev-sandwich-check-abc123-1773915254896",
"status": "queued",
"message": "Sandwich check started. Poll /mev/job-status/:jobId for updates."
}Authorizations
Supabase JWT authentication. Used for MEV Analysis and Write Locks endpoints. Requires an active subscription (trial, active, or grace_period status).
Body
application/json