> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.api.corpx.com/ib/referencia/accounts/create-limit-request-evidence-upload-url/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.api.corpx.com/_mcp/server.

# Presign a limit-request document upload

POST https://client.api.corpx.com/v1/accounts/{accountId}/limit-requests/{requestId}/evidence/upload-url
Content-Type: application/json

Returns a 15-minute PUT URL. The browser uploads the bytes directly.
The file then goes through the same quarantine, antivirus and
sanitizer pipeline as MED evidence. Call `.../evidence/add` with the
returned `key`. Allowed while the request is `awaiting_documents` or
`info_requested`. `documentType` must belong to the account catalog,
or be `other` when the reviewer asked for it.


Reference: https://docs.api.corpx.com/ib/referencia/accounts/create-limit-request-evidence-upload-url

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `accountId` (string, required) — Account identifier.
- `requestId` (string, required) — Limit request id.

### Headers

- `X-Tenant-Id` (string, required) — Tenant context used for authorization and routing.
- `X-Acting-Document` (string, optional) — CPF of the human performing the operation. Required on cashout routes when the credential enforces a transaction PIN.
- `Idempotency-Key` (string, optional) — Optional client-generated idempotency token (recommended for safe retries).
- `X-Request-Timestamp` (string, required) — Unix seconds. Required on the signed host; tolerance is 300s either way (`403 request_timestamp_skew`).
- `X-Content-SHA256` (string, required) — Lowercase hex SHA-256 of the body. An empty body hashes the empty string, so the header is always present. Mismatch returns `400 body_hash_mismatch`.
- `X-Request-Signature` (string, required) — Detached JWS (`<protected>..<signature>`, ES256 or PS256) over `METHOD\nPATH?QUERY\nTIMESTAMP\nIDEMPOTENCY_KEY_OR_EMPTY\nX_CONTENT_SHA256`.

## Response

### 200

Presigned PUT.

## Errors

### 409 Conflict Error

`limit_request_closed`.

- `errorCode` (string, required) — Stable machine-readable code. See `ErrorCode` for the known values.
- `message` (string, required) — Human-readable explanation (pt-BR). Presentation only; may change.
- `docs` (string, optional) — Link to this code in the public error catalogue.
- `requestId` (string, optional) — Gateway request id. Quote it when contacting support.
- `details` (map from string to any, optional) — Optional machine-readable context for the specific `errorCode` (for example `kind` on `identity_verification_monthly_limit_exceeded`, `maxBytes` on `payload_too_large`, `attemptsRemaining` on `facetec_attempts_exhausted`). Keys are documented per operation; absent when the code carries no extra context.
- `partner` (ErrorResponsePartner, optional) — Raw error from the settlement bank, when the failure came from it. Diagnostic only.

### 413 Content Too Large Error

File above 5 MB or the 60 MB request cap.

- `errorCode` (string, required) — Stable machine-readable code. See `ErrorCode` for the known values.
- `message` (string, required) — Human-readable explanation (pt-BR). Presentation only; may change.
- `docs` (string, optional) — Link to this code in the public error catalogue.
- `requestId` (string, optional) — Gateway request id. Quote it when contacting support.
- `details` (map from string to any, optional) — Optional machine-readable context for the specific `errorCode` (for example `kind` on `identity_verification_monthly_limit_exceeded`, `maxBytes` on `payload_too_large`, `attemptsRemaining` on `facetec_attempts_exhausted`). Keys are documented per operation; absent when the code carries no extra context.
- `partner` (ErrorResponsePartner, optional) — Raw error from the settlement bank, when the failure came from it. Diagnostic only.

### 422 Unprocessable Entity Error

`limit_request_document_type_invalid`, `unsupported_media_type` or `too_many_files`.

- `errorCode` (string, required) — Stable machine-readable code. See `ErrorCode` for the known values.
- `message` (string, required) — Human-readable explanation (pt-BR). Presentation only; may change.
- `docs` (string, optional) — Link to this code in the public error catalogue.
- `requestId` (string, optional) — Gateway request id. Quote it when contacting support.
- `details` (map from string to any, optional) — Optional machine-readable context for the specific `errorCode` (for example `kind` on `identity_verification_monthly_limit_exceeded`, `maxBytes` on `payload_too_large`, `attemptsRemaining` on `facetec_attempts_exhausted`). Keys are documented per operation; absent when the code carries no extra context.
- `partner` (ErrorResponsePartner, optional) — Raw error from the settlement bank, when the failure came from it. Diagnostic only.

## Types

### ErrorResponsePartner

Raw error from the settlement bank, when the failure came from it. Diagnostic only.

- `code` (string, optional)
- `message` (string, optional)
- `field` (string, optional) — Field the partner pointed at, when any.

## Examples

**Request**

```json
{
  "contentType": "application/pdf",
  "documentType": "identity_document",
  "filename": "rg.pdf",
  "sizeBytes": 120000
}
```

**Response**

```json
{
  "contentType": "application/pdf",
  "documentType": "identity_document",
  "evidenceId": "lrev_1",
  "expiresIn": 900,
  "key": "limit-request-evidences/tn/lr/lrev_1-rg.pdf",
  "method": "PUT",
  "requestId": "lr_01J9XQ8K2M3N4P5Q6R7S8T9U0V",
  "sizeBytes": 120000,
  "uploadUrl": "https://uploads.example/put"
}
```

**SDK Code**

```python Accounts_createLimitRequestEvidenceUploadUrl_example
import requests

url = "https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url"

payload = {
    "contentType": "application/pdf",
    "documentType": "identity_document",
    "filename": "rg.pdf",
    "sizeBytes": 120000
}
headers = {
    "X-Content-SHA256": "X-Content-SHA256",
    "X-Request-Signature": "X-Request-Signature",
    "X-Request-Timestamp": "X-Request-Timestamp",
    "X-Tenant-Id": "X-Tenant-Id",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Accounts_createLimitRequestEvidenceUploadUrl_example
const url = 'https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url';
const options = {
  method: 'POST',
  headers: {
    'X-Content-SHA256': 'X-Content-SHA256',
    'X-Request-Signature': 'X-Request-Signature',
    'X-Request-Timestamp': 'X-Request-Timestamp',
    'X-Tenant-Id': 'X-Tenant-Id',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: '{"contentType":"application/pdf","documentType":"identity_document","filename":"rg.pdf","sizeBytes":120000}'
};

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

```go Accounts_createLimitRequestEvidenceUploadUrl_example
package main

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

func main() {

	url := "https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url"

	payload := strings.NewReader("{\n  \"contentType\": \"application/pdf\",\n  \"documentType\": \"identity_document\",\n  \"filename\": \"rg.pdf\",\n  \"sizeBytes\": 120000\n}")

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

	req.Header.Add("X-Content-SHA256", "X-Content-SHA256")
	req.Header.Add("X-Request-Signature", "X-Request-Signature")
	req.Header.Add("X-Request-Timestamp", "X-Request-Timestamp")
	req.Header.Add("X-Tenant-Id", "X-Tenant-Id")
	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(res)
	fmt.Println(string(body))

}
```

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

url = URI("https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url")

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

request = Net::HTTP::Post.new(url)
request["X-Content-SHA256"] = 'X-Content-SHA256'
request["X-Request-Signature"] = 'X-Request-Signature'
request["X-Request-Timestamp"] = 'X-Request-Timestamp'
request["X-Tenant-Id"] = 'X-Tenant-Id'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"contentType\": \"application/pdf\",\n  \"documentType\": \"identity_document\",\n  \"filename\": \"rg.pdf\",\n  \"sizeBytes\": 120000\n}"

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

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

HttpResponse<String> response = Unirest.post("https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url")
  .header("X-Content-SHA256", "X-Content-SHA256")
  .header("X-Request-Signature", "X-Request-Signature")
  .header("X-Request-Timestamp", "X-Request-Timestamp")
  .header("X-Tenant-Id", "X-Tenant-Id")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"contentType\": \"application/pdf\",\n  \"documentType\": \"identity_document\",\n  \"filename\": \"rg.pdf\",\n  \"sizeBytes\": 120000\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url', [
  'body' => '{
  "contentType": "application/pdf",
  "documentType": "identity_document",
  "filename": "rg.pdf",
  "sizeBytes": 120000
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
    'X-Content-SHA256' => 'X-Content-SHA256',
    'X-Request-Signature' => 'X-Request-Signature',
    'X-Request-Timestamp' => 'X-Request-Timestamp',
    'X-Tenant-Id' => 'X-Tenant-Id',
  ],
]);

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

```csharp Accounts_createLimitRequestEvidenceUploadUrl_example
using RestSharp;

var client = new RestClient("https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url");
var request = new RestRequest(Method.POST);
request.AddHeader("X-Content-SHA256", "X-Content-SHA256");
request.AddHeader("X-Request-Signature", "X-Request-Signature");
request.AddHeader("X-Request-Timestamp", "X-Request-Timestamp");
request.AddHeader("X-Tenant-Id", "X-Tenant-Id");
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"contentType\": \"application/pdf\",\n  \"documentType\": \"identity_document\",\n  \"filename\": \"rg.pdf\",\n  \"sizeBytes\": 120000\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Accounts_createLimitRequestEvidenceUploadUrl_example
import Foundation

let headers = [
  "X-Content-SHA256": "X-Content-SHA256",
  "X-Request-Signature": "X-Request-Signature",
  "X-Request-Timestamp": "X-Request-Timestamp",
  "X-Tenant-Id": "X-Tenant-Id",
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "contentType": "application/pdf",
  "documentType": "identity_document",
  "filename": "rg.pdf",
  "sizeBytes": 120000
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://client.api.corpx.com/v1/accounts/accountId/limit-requests/requestId/evidence/upload-url")! 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()
```