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This file is the cornerstone of verdaccio where you can modify the default behaviour, enable plugins and extend features.

A default configuration file config.yaml is created the very first time you run verdaccio.

Default Configuration#

The default configuration has support for scoped packages and allow any user to access all packages but only authenticated users to publish.

storage: ./storageauth:  htpasswd:    file: ./htpasswduplinks:  npmjs:    url:  '@*/*':    access: $all    publish: $authenticated    proxy: npmjs  '**':    proxy: npmjslogs:  - {type: stdout, format: pretty, level: http}


The following sections explain what each property means and the different options.


Is the location of the default storage. Verdaccio is by default based on local file system.

storage: ./storage


Is the location of the plugin directory. Useful for Docker/Kubernetes based deployments.

plugins: ./plugins


The authentication setup is done here. The authentification set up is done here, the default auth is based on htpasswd and is built-in. You can modify this behaviour via plugins. For more information about this section read the auth page.

auth:  htpasswd:    file: ./htpasswd    max_users: 1000


Since: verdaccio@4.0.0 #168

The security block allows you to customise the token signature. To enable JWT (json web token) new signture you need to add the block jwt to api section, web uses by default jwt.

The configuration is separated in two sections, api and web. To use JWT on api, it has to be defined, otherwise will use the legacy token signature (aes192). For JWT you might customize the signature and the token verification with your own properties.

security:  api:    legacy: true    jwt:      sign:        expiresIn: 29d      verify:        someProp: [value]   web:     sign:       expiresIn: 7d # 7 days by default     verify:        someProp: [value]

We highly recommend move to JWT since legacy signature (aes192) is deprecated and will disappear in future versions.


A set of properties to modify the behavior of the server application, specifically the API (Express.js).

You can specify HTTP/1.1 server keep alive timeout in seconds for incomming connections. A value of 0 makes the http server behave similarly to Node.js versions prior to 8.0.0, which did not have a keep-alive timeout. WORKAROUND: Through given configuration you can workaround following issue Set to 0 in case 60 is not enough.

server:  keepAliveTimeout: 60

Web UI#

This property allow you to modify the look and feel of the web UI. For more information about this section read the web ui page.

web:  enable: true  title: Verdaccio  logo: logo.png  scope:


Uplinks is the ability of the system to fetch packages from remote registries when those packages are not available locally. For more information about this section read the uplinks page.

uplinks:  npmjs:    url:


Packages allow the user to control how the packages are gonna be accessed. For more information about this section read the packages page.

packages:  '@*/*':    access: $all    publish: $authenticated    proxy: npmjs

Advanced Settings#

Offline Publish#

By default verdaccio does not allow to publish when the client is offline, that behavior can be overridden by setting this to true. This can be can be overridden by setting this value to true.

publish:  allow_offline: false
Since: verdaccio@2.3.6 due #223

URL Prefix#

The prefix is intended to be used when the server runs behinds the proxy and won't work properly if is used without a reverse proxy, check the reverse proxy setup page for more details.

url_prefix: /verdaccio/

Verdaccio 5 has an improved prefix behaviour and the VERDACCIO_PUBLIC_URL is available for use, learn how to here.

Max Body Size#

By default the maximum body size for a JSON document is 10mb, if you run into errors that state "request entity too large" you may increase this value.

max_body_size: 10mb

Listen Port#

verdaccio runs by default in the port 4873. Changing the port can be done via cli or in the configuration file, the following options are valid. The following options are valid:

listen:# - localhost:4873            # default value# - http://localhost:4873     # same thing# -              # listen on all addresses (INADDR_ANY)# -  # if you want to use https# - "[::1]:4873"                # ipv6# - unix:/tmp/verdaccio.sock    # unix socket


To enable https in verdaccio it's enough to set the listen flag with the protocol https\://. For more information about this section read the ssl page.

https:    key: ./path/verdaccio-key.pem    cert: ./path/verdaccio-cert.pem    ca: ./path/verdaccio-csr.pem


Proxies are special-purpose HTTP servers designed to transfer data from remote servers to local clients.

http_proxy and https_proxy#

This variable should contain a comma-separated list of domain extensions proxy should not be used for.

http_proxy: http://something.local/https_proxy: https://something.local/


This variable should contain a comma-separated list of domain extensions that the proxy should not be used for.

no_proxy: localhost,


Enabling notifications to third-party tools is fairly easy via web hooks. For more information about this section read the notifications page.

notify:  method: POST  headers: [{'Content-Type': 'application/json'}]  endpoint:  content: '{"color":"green","message":"New package published: * {{ name }}*","notify":true,"message_format":"text"}'

For more detailed configuration settings, please check the source code.


Since: verdaccio@3.0.0

npm audit is a new command released with npm 6.x. Verdaccio includes a built-in middleware plugin to handle this command.

If you have a new installation it comes by default, otherwise you need to add the following props to your config file

middlewares:  audit:    enabled: true


This release includes a new property named experiments that can be placed in the config.yaml and is completely optional.

We want to be able to ship new things without affecting production environments. This flag allows us to add new features and get feedback from the community that wants to use them.

Here one example:

Here is one example:

experiments:  changePassword: false

To disable the experiments warning in the console, you must comment out the whole experiments section.