Initiate a client grant request

Public — the caller has no credentials yet. Generates a grant_code (long secret used by the polling client) and a user_code (short code shown to the user for visual verification). Both are stored in Redis with a 15-minute TTL.

POST /auth/grant/code

Initiate a client grant request

cURL

curl --request POST \
  --url https://app.dynamicauth.com/api/v0/auth/grant/code \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "client_metadata": {
    "name": "<string>",
    "version": "<string>",
    "hostname": "<string>",
    "os": "<string>"
  }
}
'

import requests

url = "https://app.dynamicauth.com/api/v0/auth/grant/code"

payload = { "client_metadata": {
        "name": "<string>",
        "version": "<string>",
        "hostname": "<string>",
        "os": "<string>"
    } }
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({
    client_metadata: {name: '<string>', version: '<string>', hostname: '<string>', os: '<string>'}
  })
};

fetch('https://app.dynamicauth.com/api/v0/auth/grant/code', 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://app.dynamicauth.com/api/v0/auth/grant/code",
  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([
    'client_metadata' => [
        'name' => '<string>',
        'version' => '<string>',
        'hostname' => '<string>',
        'os' => '<string>'
    ]
  ]),
  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://app.dynamicauth.com/api/v0/auth/grant/code"

	payload := strings.NewReader("{\n  \"client_metadata\": {\n    \"name\": \"<string>\",\n    \"version\": \"<string>\",\n    \"hostname\": \"<string>\",\n    \"os\": \"<string>\"\n  }\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://app.dynamicauth.com/api/v0/auth/grant/code")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"client_metadata\": {\n    \"name\": \"<string>\",\n    \"version\": \"<string>\",\n    \"hostname\": \"<string>\",\n    \"os\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.dynamicauth.com/api/v0/auth/grant/code")

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  \"client_metadata\": {\n    \"name\": \"<string>\",\n    \"version\": \"<string>\",\n    \"hostname\": \"<string>\",\n    \"os\": \"<string>\"\n  }\n}"

response = http.request(request)
puts response.read_body

200

{
  "grant_code": "<string>",
  "user_code": "<string>",
  "verification_uri": "<string>",
  "verification_uri_complete": "<string>",
  "expires_in": 123,
  "interval": 123
}

{
  "error": "Internal Server Error"
}

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

Request body for POST /auth/grant/code. client_type is required so the authorizing user always sees what kind of client they are approving; pass other if no specific category fits.

client_type · enum<string> · required

Type of first-party client being authorized. cli for the dyn CLI, mcp for an MCP server, demo for demo applications oauth-ing into redcoast, ide-plugin for editor extensions, and other as a catch-all.

Available options: cli, mcp, demo, ide-plugin, other

client_metadata · object

Optional metadata sent at grant request time so the authorizing user can recognize the client in the management UI. Every field is optional — a CLI may know its hostname, an embedded MCP server may not.

Show child attributes

Response

200

application/json

Grant initiated.

Response from POST /auth/grant/code. Returns the long-secret grant_code that only the polling client should ever see, plus a short user_code that the user verifies on the dashboard authorize page.

grant_code · string · required

Long random secret used by the client to poll for the result.

user_code · string · required

Short code shown to the user (XXXX-XXXX, no ambiguous chars).

verification_uri · string<uri> · required

Where the user goes to authorize the request.

verification_uri_complete · string<uri> · required

verification_uri with ?code={user_code} appended.

expires_in · integer · required

Seconds until the grant expires (typically 900 = 15 min).

interval · integer · required

Minimum seconds between polling attempts (typically 5).