List chains
curl --request GET \
--url https://api.eco.com/v1/chains \
--header 'x-api-key: <api-key>'import requests
url = "https://api.eco.com/v1/chains"
headers = {"x-api-key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};
fetch('https://api.eco.com/v1/chains', 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.eco.com/v1/chains",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"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"
"net/http"
"io"
)
func main() {
url := "https://api.eco.com/v1/chains"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("x-api-key", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.eco.com/v1/chains")
.header("x-api-key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.eco.com/v1/chains")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'
response = http.request(request)
puts response.read_body{
"chains": [
{
"chainId": 1,
"name": "Ethereum",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 10,
"name": "OP Mainnet",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 130,
"name": "Unichain",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 137,
"name": "Polygon",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 143,
"name": "Monad",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": null
}
},
{
"chainId": 480,
"name": "World Chain",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 999,
"name": "HyperEVM",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 2020,
"name": "Ronin",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 5042,
"name": "Arc",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": null
}
},
{
"chainId": 8453,
"name": "Base",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 9745,
"name": "Plasma",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 42161,
"name": "Arbitrum One",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 1399811149,
"name": "Solana",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "svm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "EcooswwC1NggsckZyF5SeAL9WsgJs3UhPbrqY1apV73F",
"executor": "Gk1ZpHHx9tgSo68hiT2prBQCjkstdUYVZn4SWL3NzR2U"
}
}
],
"limits": {
"paging": {
"maxLimit": 50,
"defaultLimit": 20
}
}
}Discovery and quotes
List chains
Returns every chain the API can quote, with Portal and Executor addresses and the quote-signing address.
GET
/
v1
/
chains
List chains
curl --request GET \
--url https://api.eco.com/v1/chains \
--header 'x-api-key: <api-key>'import requests
url = "https://api.eco.com/v1/chains"
headers = {"x-api-key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};
fetch('https://api.eco.com/v1/chains', 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.eco.com/v1/chains",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"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"
"net/http"
"io"
)
func main() {
url := "https://api.eco.com/v1/chains"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("x-api-key", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.eco.com/v1/chains")
.header("x-api-key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.eco.com/v1/chains")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'
response = http.request(request)
puts response.read_body{
"chains": [
{
"chainId": 1,
"name": "Ethereum",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 10,
"name": "OP Mainnet",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 130,
"name": "Unichain",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 137,
"name": "Polygon",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 143,
"name": "Monad",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": null
}
},
{
"chainId": 480,
"name": "World Chain",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 999,
"name": "HyperEVM",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 2020,
"name": "Ronin",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 5042,
"name": "Arc",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": null
}
},
{
"chainId": 8453,
"name": "Base",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 9745,
"name": "Plasma",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 42161,
"name": "Arbitrum One",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "evm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "0xEC000064576f9C95a8623Bc0eff3db6d296ea6df",
"executor": "0xEc2C96e75B09e29b66bf2Ee5C37fa749eF9AA7c7"
}
},
{
"chainId": 1399811149,
"name": "Solana",
"quoteSigner": "0x1D636584Eec22B53Be1930daF6B12a0E13C8B870",
"type": "svm",
"encoding": "abi",
"status": "live",
"contracts": {
"portal": "EcooswwC1NggsckZyF5SeAL9WsgJs3UhPbrqY1apV73F",
"executor": "Gk1ZpHHx9tgSo68hiT2prBQCjkstdUYVZn4SWL3NzR2U"
}
}
],
"limits": {
"paging": {
"maxLimit": 50,
"defaultLimit": 20
}
}
}Returns every chain the API can quote, with its Portal and Executor contract addresses and the address that signs quotes.
chainId filters to one chain. Solana is chain 1399811149.
Requires x-api-key. Partner pricing, attribution, and enabled features are tied to the key. Without a key the gateway can answer 403 with a plain JSON body ({"Message": "User is not authorized ..."}); a key that is unknown, revoked, or not enabled for v1 answers 401 invalid-api-key. No requests-per-second quota is published. Handle 429 and honor Retry-After when present. See Errors and retries for common errors and retry handling.
Examples use mainnet token and contract addresses with placeholder wallets, hashes, signatures, and IDs. They are illustrative and must not be used to transfer funds.