Provision a fee wrapper

Provision a fee wrapper over a gtoken backing vault

curl --request POST \
  --url https://sandbox.groundtech.co/v2/fee-wrappers \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "requestId": "a1b2c3d4-0000-4000-8000-000000000001",
  "gVaultId": "ground-ustb-vault",
  "feeRecipientAddress": "0x2222222222222222222222222222222222222222",
  "performanceFeeBps": 2000
}
'

import requests

url = "https://sandbox.groundtech.co/v2/fee-wrappers"

payload = {
    "requestId": "a1b2c3d4-0000-4000-8000-000000000001",
    "gVaultId": "ground-ustb-vault",
    "feeRecipientAddress": "0x2222222222222222222222222222222222222222",
    "performanceFeeBps": 2000
}
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({
    requestId: 'a1b2c3d4-0000-4000-8000-000000000001',
    gVaultId: 'ground-ustb-vault',
    feeRecipientAddress: '0x2222222222222222222222222222222222222222',
    performanceFeeBps: 2000
  })
};

fetch('https://sandbox.groundtech.co/v2/fee-wrappers', 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://sandbox.groundtech.co/v2/fee-wrappers",
  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([
    'requestId' => 'a1b2c3d4-0000-4000-8000-000000000001',
    'gVaultId' => 'ground-ustb-vault',
    'feeRecipientAddress' => '0x2222222222222222222222222222222222222222',
    'performanceFeeBps' => 2000
  ]),
  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://sandbox.groundtech.co/v2/fee-wrappers"

	payload := strings.NewReader("{\n  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\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://sandbox.groundtech.co/v2/fee-wrappers")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.groundtech.co/v2/fee-wrappers")

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  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\n}"

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

{
  "id": "8f4c52d7-62ab-4db9-a964-92f481f6b851",
  "requestId": "2b8332ce-5fe8-4fa6-a1da-d30a78285e07",
  "gVaultId": "ground-ustb-vault",
  "status": "ready",
  "contractAddress": "0x7c4a1cb5a3d5c3c4e019c3f6ab29a0f98c21b814",
  "feeRecipientAddress": "0x92e6a1ed742f0c8502f902c61775f57728985b42",
  "performanceFeeBps": 2000,
  "maxPerformanceFeeBps": 2000,
  "managementFeeBps": 0,
  "maxManagementFeeBps": 100,
  "createdAt": "2026-09-02T18:42:11.000Z",
  "updatedAt": "2026-09-02T18:43:29.000Z"
}

{
  "error": "<string>",
  "code": "validation_error"
}

{
  "error": "Unauthenticated request",
  "message": "Missing or invalid bearer token"
}

{
  "error": "<string>",
  "code": "validation_error"
}

{
  "error": "Service temporarily unavailable",
  "code": "service_temporarily_unavailable",
  "retryable": true
}

POST

fee-wrappers

Provision a fee wrapper over a gtoken backing vault

curl --request POST \
  --url https://sandbox.groundtech.co/v2/fee-wrappers \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "requestId": "a1b2c3d4-0000-4000-8000-000000000001",
  "gVaultId": "ground-ustb-vault",
  "feeRecipientAddress": "0x2222222222222222222222222222222222222222",
  "performanceFeeBps": 2000
}
'

import requests

url = "https://sandbox.groundtech.co/v2/fee-wrappers"

payload = {
    "requestId": "a1b2c3d4-0000-4000-8000-000000000001",
    "gVaultId": "ground-ustb-vault",
    "feeRecipientAddress": "0x2222222222222222222222222222222222222222",
    "performanceFeeBps": 2000
}
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({
    requestId: 'a1b2c3d4-0000-4000-8000-000000000001',
    gVaultId: 'ground-ustb-vault',
    feeRecipientAddress: '0x2222222222222222222222222222222222222222',
    performanceFeeBps: 2000
  })
};

fetch('https://sandbox.groundtech.co/v2/fee-wrappers', 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://sandbox.groundtech.co/v2/fee-wrappers",
  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([
    'requestId' => 'a1b2c3d4-0000-4000-8000-000000000001',
    'gVaultId' => 'ground-ustb-vault',
    'feeRecipientAddress' => '0x2222222222222222222222222222222222222222',
    'performanceFeeBps' => 2000
  ]),
  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://sandbox.groundtech.co/v2/fee-wrappers"

	payload := strings.NewReader("{\n  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\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://sandbox.groundtech.co/v2/fee-wrappers")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.groundtech.co/v2/fee-wrappers")

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  \"requestId\": \"a1b2c3d4-0000-4000-8000-000000000001\",\n  \"gVaultId\": \"ground-ustb-vault\",\n  \"feeRecipientAddress\": \"0x2222222222222222222222222222222222222222\",\n  \"performanceFeeBps\": 2000\n}"

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

{
  "id": "8f4c52d7-62ab-4db9-a964-92f481f6b851",
  "requestId": "2b8332ce-5fe8-4fa6-a1da-d30a78285e07",
  "gVaultId": "ground-ustb-vault",
  "status": "ready",
  "contractAddress": "0x7c4a1cb5a3d5c3c4e019c3f6ab29a0f98c21b814",
  "feeRecipientAddress": "0x92e6a1ed742f0c8502f902c61775f57728985b42",
  "performanceFeeBps": 2000,
  "maxPerformanceFeeBps": 2000,
  "managementFeeBps": 0,
  "maxManagementFeeBps": 100,
  "createdAt": "2026-09-02T18:42:11.000Z",
  "updatedAt": "2026-09-02T18:43:29.000Z"
}

{
  "error": "<string>",
  "code": "validation_error"
}

{
  "error": "Unauthenticated request",
  "message": "Missing or invalid bearer token"
}

{
  "error": "<string>",
  "code": "validation_error"
}

{
  "error": "Service temporarily unavailable",
  "code": "service_temporarily_unavailable",
  "retryable": true
}

Provisions a revenue-sharing fee wrapper around the Ground vault backing an existing gtoken. Use the returned fee-wrapper ID to check when the contract is ready.

Authorizations

Authorization

string

header

required

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

Body

application/json

Management fees are set at creation. Ground fixes their annual cap at 100 bps; maxManagementFeeBps is not accepted as input.

requestId

string<uuid>

required

Pattern: ^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89aAbB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$

Example:

"8f4c52d7-62ab-4db9-a964-92f481f6b851"

gVaultId

enum<string>

required

Source ID returned by the gtoken yield-source catalogue.

Available options:

ground-ustb-vault

Example:

"ground-ustb-vault"

feeRecipientAddress

string

required

Valid nonzero EVM EOA or contract address. Mixed-case values must use a valid EIP-55 checksum.

Required string length: 42

Pattern: ^0x(?!0{40}$)[0-9a-fA-F]{40}$

Example:

"0x3bf25a73a1f1033c2d50ac65f3c9d6a44123db81"

performanceFeeBps

integer

required

Required range: 0 <= x <= 9999

managementFeeBps

integer

default:0

Annual management fee in basis points.

Required range: 0 <= x <= 100

Response

Provisioning accepted.

string<uuid>

required

Pattern: ^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89aAbB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$

Example:

"8f4c52d7-62ab-4db9-a964-92f481f6b851"

requestId

string<uuid>

required

Pattern: ^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89aAbB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$

Example:

"8f4c52d7-62ab-4db9-a964-92f481f6b851"

gVaultId

enum<string>

required

Source ID returned by the gtoken yield-source catalogue.

Available options:

ground-ustb-vault

Example:

"ground-ustb-vault"

status

enum<string>

required

Available options:

provisioning,

ready,

failed

contractAddress

string | null

required

Deployed nonzero EVM contract address, or null while deployment is pending.

Required string length: 42

Pattern: ^0x(?!0{40}$)[0-9a-fA-F]{40}$

Example:

"0x7c4a1cb5a3d5c3c4e019c3f6ab29a0f98c21b814"

feeRecipientAddress

string

required

Valid EVM address. Mixed-case values must use a valid EIP-55 checksum.

Required string length: 42

Pattern: ^0x[0-9a-fA-F]{40}$

Example:

"0x92e6a1ed742f0c8502f902c61775f57728985b42"

performanceFeeBps

integer

required

Required range: 0 <= x <= 9999

maxPerformanceFeeBps

integer

required

Required range: 0 <= x <= 9999

managementFeeBps

integer

required

Required range: 0 <= x <= 9999

maxManagementFeeBps

integer

required

read-only

Immutable annual management fee cap. New wrappers use 100 bps; older wrappers retain their deployed cap.

Required range: 0 <= x <= 9999

createdAt

string<date-time>

required

updatedAt

string<date-time>

required

Yield Sources

Direct Access

Fee Wrappers

Webhooks

Provision a fee wrapper

Authorizations

Body

Response