(http-api)=
# HTTP API
VyOS provide an HTTP API. You can use it to execute op-mode commands,
update VyOS, set or delete config.
Please take a look at the {ref}`vyosapi` page for an detailed how-to.
## Configuration
```{eval-rst}
.. cfgcmd:: set service https allow-client address
Only allow certain IP addresses or prefixes to access the https
webserver.
```
```{eval-rst}
.. cfgcmd:: set service https certificates ca-certificate
Use CA certificate from PKI subsystem
```
```{eval-rst}
.. cfgcmd:: set service https certificates certificate
Use certificate from PKI subsystem
```
```{eval-rst}
.. cfgcmd:: set service https certificates dh-params
Use {abbr}`DH (Diffie–Hellman)` parameters from PKI subsystem.
Must be at least 2048 bits in length.
```
```{eval-rst}
.. cfgcmd:: set service https listen-address
Webserver should only listen on specified IP address
```
```{eval-rst}
.. cfgcmd:: set service https port
Webserver should listen on specified port.
Default: 443
```
```{eval-rst}
.. cfgcmd:: set service https enable-http-redirect
Enable automatic redirect from http to https.
```
```{eval-rst}
.. cfgcmd:: set service https tls-version <1.2 | 1.3>
Select TLS version used.
This defaults to both 1.2 and 1.3.
```
```{eval-rst}
.. cfgcmd:: set service https vrf
Start Webserver in given VRF.
```
### API
```{eval-rst}
.. cfgcmd:: set service https api keys id key
Set a named api key. Every key has the same, full permissions
on the system.
```
```{eval-rst}
.. cfgcmd:: set service https api debug
To enable debug messages. Available via {opcmd}`show log` or
{opcmd}`monitor log`
```
```{eval-rst}
.. cfgcmd:: set service https api strict
Enforce strict path checking
```
## Example Configuration
Set an API-KEY is the minimal configuration to get a working API Endpoint.
```none
set service https api keys id MY-HTTPS-API-ID key MY-HTTPS-API-PLAINTEXT-KEY
```