Fund an EVM-sourced swap gaslessly via Permit2.
curl --request POST \
--url https://api.satora.io/swap/{id}/fund-gasless \
--header 'Content-Type: application/json' \
--data '
{
"calls": [
{
"call_data": "<string>",
"target": "<string>",
"value": "<string>"
}
],
"permit2_deadline": 1,
"permit2_nonce": "<string>",
"permit2_signature": "<string>",
"eip2612_permit": {
"deadline": 1,
"value": "<string>",
"r": "<string>",
"s": "<string>",
"signature": "<string>",
"v": 1
}
}
'import requests
url = "https://api.satora.io/swap/{id}/fund-gasless"
payload = {
"calls": [
{
"call_data": "<string>",
"target": "<string>",
"value": "<string>"
}
],
"permit2_deadline": 1,
"permit2_nonce": "<string>",
"permit2_signature": "<string>",
"eip2612_permit": {
"deadline": 1,
"value": "<string>",
"r": "<string>",
"s": "<string>",
"signature": "<string>",
"v": 1
}
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
calls: [{call_data: '<string>', target: '<string>', value: '<string>'}],
permit2_deadline: 1,
permit2_nonce: '<string>',
permit2_signature: '<string>',
eip2612_permit: {
deadline: 1,
value: '<string>',
r: '<string>',
s: '<string>',
signature: '<string>',
v: 1
}
})
};
fetch('https://api.satora.io/swap/{id}/fund-gasless', 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.satora.io/swap/{id}/fund-gasless",
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([
'calls' => [
[
'call_data' => '<string>',
'target' => '<string>',
'value' => '<string>'
]
],
'permit2_deadline' => 1,
'permit2_nonce' => '<string>',
'permit2_signature' => '<string>',
'eip2612_permit' => [
'deadline' => 1,
'value' => '<string>',
'r' => '<string>',
's' => '<string>',
'signature' => '<string>',
'v' => 1
]
]),
CURLOPT_HTTPHEADER => [
"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.satora.io/swap/{id}/fund-gasless"
payload := strings.NewReader("{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
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.satora.io/swap/{id}/fund-gasless")
.header("Content-Type", "application/json")
.body("{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.satora.io/swap/{id}/fund-gasless")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "<string>",
"message": "<string>",
"tx_hash": "<string>"
}{
"error": "<string>"
}{
"error": "<string>"
}EVM → BTC Swaps
Fund an EVM-sourced swap gaslessly via Permit2.
The server submits the executeAndCreateWithPermit2 transaction on the
depositor’s behalf, pulling tokens via the depositor’s Permit2 signature.
If an EIP-2612 permit is provided, the server first submits that to approve
the Permit2 contract.
POST
/
swap
/
{id}
/
fund-gasless
Fund an EVM-sourced swap gaslessly via Permit2.
curl --request POST \
--url https://api.satora.io/swap/{id}/fund-gasless \
--header 'Content-Type: application/json' \
--data '
{
"calls": [
{
"call_data": "<string>",
"target": "<string>",
"value": "<string>"
}
],
"permit2_deadline": 1,
"permit2_nonce": "<string>",
"permit2_signature": "<string>",
"eip2612_permit": {
"deadline": 1,
"value": "<string>",
"r": "<string>",
"s": "<string>",
"signature": "<string>",
"v": 1
}
}
'import requests
url = "https://api.satora.io/swap/{id}/fund-gasless"
payload = {
"calls": [
{
"call_data": "<string>",
"target": "<string>",
"value": "<string>"
}
],
"permit2_deadline": 1,
"permit2_nonce": "<string>",
"permit2_signature": "<string>",
"eip2612_permit": {
"deadline": 1,
"value": "<string>",
"r": "<string>",
"s": "<string>",
"signature": "<string>",
"v": 1
}
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
calls: [{call_data: '<string>', target: '<string>', value: '<string>'}],
permit2_deadline: 1,
permit2_nonce: '<string>',
permit2_signature: '<string>',
eip2612_permit: {
deadline: 1,
value: '<string>',
r: '<string>',
s: '<string>',
signature: '<string>',
v: 1
}
})
};
fetch('https://api.satora.io/swap/{id}/fund-gasless', 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.satora.io/swap/{id}/fund-gasless",
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([
'calls' => [
[
'call_data' => '<string>',
'target' => '<string>',
'value' => '<string>'
]
],
'permit2_deadline' => 1,
'permit2_nonce' => '<string>',
'permit2_signature' => '<string>',
'eip2612_permit' => [
'deadline' => 1,
'value' => '<string>',
'r' => '<string>',
's' => '<string>',
'signature' => '<string>',
'v' => 1
]
]),
CURLOPT_HTTPHEADER => [
"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.satora.io/swap/{id}/fund-gasless"
payload := strings.NewReader("{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
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.satora.io/swap/{id}/fund-gasless")
.header("Content-Type", "application/json")
.body("{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.satora.io/swap/{id}/fund-gasless")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"calls\": [\n {\n \"call_data\": \"<string>\",\n \"target\": \"<string>\",\n \"value\": \"<string>\"\n }\n ],\n \"permit2_deadline\": 1,\n \"permit2_nonce\": \"<string>\",\n \"permit2_signature\": \"<string>\",\n \"eip2612_permit\": {\n \"deadline\": 1,\n \"value\": \"<string>\",\n \"r\": \"<string>\",\n \"s\": \"<string>\",\n \"signature\": \"<string>\",\n \"v\": 1\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "<string>",
"message": "<string>",
"tx_hash": "<string>"
}{
"error": "<string>"
}{
"error": "<string>"
}Path Parameters
Swap ID
Body
application/json
The calls array (includes fee transfer + DEX swap)
Show child attributes
Show child attributes
Permit2 signature deadline (unix timestamp)
Required range:
x >= 0Permit2 nonce (decimal string)
Compact Permit2 signature (hex: r || s || v)
Optional EIP-2612 permit for gasless token->Permit2 approval
Show child attributes
Show child attributes