curl --request POST \
  --url https://mcp.echozero.app/oauth/token \
  --header 'Content-Type: application/json' \
  --header 'x-signature: <x-signature>' \
  --header 'x-timestamp: <x-timestamp>' \
  --data '
{
  "grant_type": "authorization_code",
  "code": "<string>",
  "redirect_uri": "http://127.0.0.1:8765/callback",
  "client_id": "echozero-cli",
  "code_verifier": "<string>"
}
'

import requests

url = "https://mcp.echozero.app/oauth/token"

payload = {
    "grant_type": "authorization_code",
    "code": "<string>",
    "redirect_uri": "http://127.0.0.1:8765/callback",
    "client_id": "echozero-cli",
    "code_verifier": "<string>"
}
headers = {
    "x-signature": "<x-signature>",
    "x-timestamp": "<x-timestamp>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-signature': '<x-signature>',
    'x-timestamp': '<x-timestamp>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    grant_type: 'authorization_code',
    code: '<string>',
    redirect_uri: 'http://127.0.0.1:8765/callback',
    client_id: 'echozero-cli',
    code_verifier: '<string>'
  })
};

fetch('https://mcp.echozero.app/oauth/token', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

const options = {
  method: 'POST',
  headers: {
    'x-signature': '<x-signature>',
    'x-timestamp': '<x-timestamp>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    grant_type: 'authorization_code',
    code: '<string>',
    redirect_uri: 'http://127.0.0.1:8765/callback',
    client_id: 'echozero-cli',
    code_verifier: '<string>'
  })
};

fetch('https://mcp.echozero.app/oauth/token', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://mcp.echozero.app/oauth/token"

	payload := strings.NewReader("{\n  \"grant_type\": \"authorization_code\",\n  \"code\": \"<string>\",\n  \"redirect_uri\": \"http://127.0.0.1:8765/callback\",\n  \"client_id\": \"echozero-cli\",\n  \"code_verifier\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-signature", "<x-signature>")
	req.Header.Add("x-timestamp", "<x-timestamp>")
	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))

}