Prepare a swap
curl --request POST \
--url https://api.launch.o1.exchange/v1/swaps/prepare \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"quote_id": "<string>",
"wallet": "<string>",
"permit2_signature": "<string>"
}
'import requests
url = "https://api.launch.o1.exchange/v1/swaps/prepare"
payload = {
"quote_id": "<string>",
"wallet": "<string>",
"permit2_signature": "<string>"
}
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({quote_id: '<string>', wallet: '<string>', permit2_signature: '<string>'})
};
fetch('https://api.launch.o1.exchange/v1/swaps/prepare', 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.launch.o1.exchange/v1/swaps/prepare",
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([
'quote_id' => '<string>',
'wallet' => '<string>',
'permit2_signature' => '<string>'
]),
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://api.launch.o1.exchange/v1/swaps/prepare"
payload := strings.NewReader("{\n \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\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://api.launch.o1.exchange/v1/swaps/prepare")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.launch.o1.exchange/v1/swaps/prepare")
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 \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"actor": "<string>",
"prepared_at": "2023-11-07T05:31:56Z",
"expires_at": "2023-11-07T05:31:56Z",
"observed_block": "<string>",
"issues": [
{
"code": "<string>",
"detail": "<string>",
"asset": "<string>",
"spender": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>",
"remediation_step_id": "<string>"
}
],
"steps": [
{
"id": "<string>",
"kind": "<string>",
"label": "<string>",
"depends_on": [
"<string>"
],
"transaction": {
"from": "<string>",
"to": "<string>",
"data": "<string>",
"value": "<string>"
},
"simulation": {
"block_number": "<string>"
}
}
],
"refreshed_expected_out_raw": "<string>",
"minimum_out_raw": "<string>",
"review": {
"token_address": "<string>",
"input_currency": "<string>",
"output_currency": "<string>",
"amount_in_raw": "<string>",
"reviewed_expected_out_raw": "<string>",
"reviewed_minimum_out_raw": "<string>",
"refreshed_expected_out_raw": "<string>",
"execution_minimum_out_raw": "<string>",
"slippage_bps": 2499,
"referrer": "<string>",
"comment": "<string>"
}
},
"meta": {
"request_id": "<string>",
"generated_at": "2023-11-07T05:31:56Z",
"warnings": [
"<string>"
]
}
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}Swaps
Prepare a swap
Requote an unmodified quote_id, preserve its reviewed slippage floor, simulate, and return an unsigned Universal Router transaction.
POST
/
swaps
/
prepare
Prepare a swap
curl --request POST \
--url https://api.launch.o1.exchange/v1/swaps/prepare \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"quote_id": "<string>",
"wallet": "<string>",
"permit2_signature": "<string>"
}
'import requests
url = "https://api.launch.o1.exchange/v1/swaps/prepare"
payload = {
"quote_id": "<string>",
"wallet": "<string>",
"permit2_signature": "<string>"
}
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({quote_id: '<string>', wallet: '<string>', permit2_signature: '<string>'})
};
fetch('https://api.launch.o1.exchange/v1/swaps/prepare', 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.launch.o1.exchange/v1/swaps/prepare",
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([
'quote_id' => '<string>',
'wallet' => '<string>',
'permit2_signature' => '<string>'
]),
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://api.launch.o1.exchange/v1/swaps/prepare"
payload := strings.NewReader("{\n \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\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://api.launch.o1.exchange/v1/swaps/prepare")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.launch.o1.exchange/v1/swaps/prepare")
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 \"quote_id\": \"<string>\",\n \"wallet\": \"<string>\",\n \"permit2_signature\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"actor": "<string>",
"prepared_at": "2023-11-07T05:31:56Z",
"expires_at": "2023-11-07T05:31:56Z",
"observed_block": "<string>",
"issues": [
{
"code": "<string>",
"detail": "<string>",
"asset": "<string>",
"spender": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>",
"remediation_step_id": "<string>"
}
],
"steps": [
{
"id": "<string>",
"kind": "<string>",
"label": "<string>",
"depends_on": [
"<string>"
],
"transaction": {
"from": "<string>",
"to": "<string>",
"data": "<string>",
"value": "<string>"
},
"simulation": {
"block_number": "<string>"
}
}
],
"refreshed_expected_out_raw": "<string>",
"minimum_out_raw": "<string>",
"review": {
"token_address": "<string>",
"input_currency": "<string>",
"output_currency": "<string>",
"amount_in_raw": "<string>",
"reviewed_expected_out_raw": "<string>",
"reviewed_minimum_out_raw": "<string>",
"refreshed_expected_out_raw": "<string>",
"execution_minimum_out_raw": "<string>",
"slippage_bps": 2499,
"referrer": "<string>",
"comment": "<string>"
}
},
"meta": {
"request_id": "<string>",
"generated_at": "2023-11-07T05:31:56Z",
"warnings": [
"<string>"
]
}
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 499,
"detail": "<string>",
"action": "<string>",
"instance": "<string>",
"request_id": "<string>",
"invalid_parameters": [
{
"name": "<string>",
"reason": "<string>",
"detail": "<string>",
"allowed": [
"<string>"
]
}
],
"suggested_endpoint": "<string>",
"resource": "<string>",
"token_address": "<string>",
"asset": "<string>",
"actual_raw": "<string>",
"required_raw": "<string>"
}Authorizations
Production API key beginning with o1_launch_.
Body
application/json
Opaque signed quote_id returned by /swaps/quote. Do not modify it; quotes expire after 2 minutes.
Required string length:
16 - 8192Executing wallet. Must match the wallet used to create the quote.
Pattern:
^0x[0-9a-fA-F]{40}$Example:
"0x1111111111111111111111111111111111111111"
Permit2 typed-data signature when the quote includes a permit-signature step. Omit it otherwise.
Maximum string length:
2048Pattern:
^0x(?:[0-9a-fA-F]{2})+$⌘I