> Call POST /v1/check before a tool that writes. DENY means do not invoke the tool. For clean Markdown of any page, append .md to the page URL. For the complete index, fetch https://docs.withwrit.com/llms.txt.

# Execute a gated upstream request

POST https://api.withwrit.com/v1/execute
Content-Type: application/json

Runs one request against the fixed upstream host for the enrolled system
(Stripe: `https://api.stripe.com`). Requires a valid lease id or ALLOW
token; the provided method/path/body must byte-match the lease. On any
mismatch, expired/reused lease, revoked credential, or gate error the
call fails closed with a receipt and no upstream request is made. Body
must be JSON and ≤ 1 MB; `idempotencyKey` is passed through to Stripe.


Reference: https://docs.withwrit.com/api-reference/enforcement/execute-a-gated-upstream-request

## Servers

- `https://api.withwrit.com` (Writ gate, default)
- `https://j72ckh66ukck2kcbq3oiwxaalm0olxwb.lambda-url.us-east-1.on.aws` (Direct Lambda Function URL (fallback))

## Request

### Body (application/json)

This endpoint expects an object.

- `systemId` (string, required)
- `method` (string, required)
- `path` (string, required) — must begin /v1/
- `leaseId` (string, optional)
- `token` (string, optional) — ALLOW token (lease created implicitly)
- `body` (V1ExecutePostRequestBodyContentApplicationJsonSchemaBody, optional)
- `idempotencyKey` (string, optional)

## Response

### 200

Upstream response body verbatim on success. On a fail-closed guardrail the response is `{"ok": false, "reason": ..., "upstreamCalled": false}`.

## Errors

### 400 Bad Request Error

Missing fields, invalid systemId, or path not starting with /v1/.

- `any`

## Types

### V1ExecutePostRequestBodyContentApplicationJsonSchemaBody

## Examples

**Request**

```json
{
  "systemId": "stripe",
  "method": "string",
  "path": "string"
}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests

url = "https://api.withwrit.com/v1/execute"

payload = {
    "systemId": "stripe",
    "method": "string",
    "path": "string"
}
headers = {"Content-Type": "application/json"}

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

print(response.json())
```

```javascript
const url = 'https://api.withwrit.com/v1/execute';
const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: '{"systemId":"stripe","method":"string","path":"string"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

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

func main() {

	url := "https://api.withwrit.com/v1/execute"

	payload := strings.NewReader("{\n  \"systemId\": \"stripe\",\n  \"method\": \"string\",\n  \"path\": \"string\"\n}")

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

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.withwrit.com/v1/execute")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"systemId\": \"stripe\",\n  \"method\": \"string\",\n  \"path\": \"string\"\n}"

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.withwrit.com/v1/execute")
  .header("Content-Type", "application/json")
  .body("{\n  \"systemId\": \"stripe\",\n  \"method\": \"string\",\n  \"path\": \"string\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.withwrit.com/v1/execute', [
  'body' => '{
  "systemId": "stripe",
  "method": "string",
  "path": "string"
}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.withwrit.com/v1/execute");
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"systemId\": \"stripe\",\n  \"method\": \"string\",\n  \"path\": \"string\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = [
  "systemId": "stripe",
  "method": "string",
  "path": "string"
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.withwrit.com/v1/execute")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```