Redirect API endpoints in nginx - nginx

Question

There is an API deployed on the server. I have a public IP to which I want to connect the domain. Normally it works this way: 127.0.0.1/api/v1/register, but the domain looks like api.mydomain.com, so I don't really need the part "api/v1". How can I redirect all users' requests like "127.0.0.1/register" into "127.0.0.1/api/v1/register"?
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/{{ SITE }}/before/*;
server {
listen {{ PORT }};
listen {{ PORT_V6 }};
server_name {{ DOMAINS }};
server_tokens off;
root {{ PATH }};
# FORGE SSL (DO NOT REMOVE!)
# ssl_certificate;
# ssl_certificate_key;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
ssl_dhparam /etc/nginx/dhparams.pem;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
index index.html index.htm index.php;
charset utf-8;
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/{{ SITE }}/server/*;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt { access_log off; log_not_found off; }
access_log off;
error_log /var/log/nginx/{{ SITE }}-error.log error;
error_page 404 /index.php;
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass {{ PROXY_PASS }};
fastcgi_index index.php;
include fastcgi_params;
}
location ~ /\.(?!well-known).* {
deny all;
}
}
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/{{ SITE }}/after/*;