---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: aws-sigv4
Protocols: HTTP
Arg: <provider1[:prvdr2[:reg[:srv]]]>
Help: AWS V4 signature auth
Category: auth http
Added: 7.75.0
Multi: single
See-also:
  - basic
  - user
Example:
  - --aws-sigv4 "aws:amz:us-east-2:es" --user "key:secret" $URL
---

# `--aws-sigv4`

Use AWS V4 signature authentication in the transfer.

The provider argument is a string that is used by the algorithm when creating
outgoing authentication headers.

The region argument is a string that points to a geographic area of
a resources collection (region-code) when the region name is omitted from
the endpoint.

The service argument is a string that points to a function provided by a cloud
(service-code) when the service name is omitted from the endpoint.