Bitwarden Password Manager Provider

The bw provider reads and writes secrets in Bitwarden Password Manager by using the official bw CLI.

Version compatibility

The Bitwarden Password Manager provider was added in SecretSpec 0.18.

At a glance

Provider	bw
URI	bw://[COLLECTION|ORGANIZATION@COLLECTION][?options]
Access	Read and write
Best for	Existing Bitwarden Password Manager vaults and items
Authentication	An unlocked bw CLI session through BW_SESSION
Build feature	bw

Quick start

Sign in, unlock the vault, and export the session returned by bw unlock:

$ bw login

$ export BW_SESSION="$(bw unlock --raw)"

Then write a secret and use it in a command:

$ secretspec set DATABASE_URL --provider bw://
Enter value for DATABASE_URL: postgresql://localhost/mydb
✓ Secret 'DATABASE_URL' saved to bw (profile: default)

$ secretspec run --provider bw:// -- npm start

Setup

Prerequisites

• Bitwarden CLI (bw)
• Bitwarden account
• For self-hosted servers: the CLI pointed at your server with bw config server before logging in (see Self-hosted servers)
• Signed in via bw login and unlocked with bw unlock
• BW_SESSION environment variable set

Build SecretSpec with --features bw when the provider is not included by your package.

Authentication

The provider uses the active bw CLI session. Export the session key after unlocking the vault:

$ export BW_SESSION="your-session-key"

Before reads and writes, SecretSpec requires the CLI status to be unlocked. If the CLI is signed out or the vault is locked, it reports combined guidance to run bw login and bw unlock, then set BW_SESSION.

Self-hosted servers

The bw CLI reads its server address from its own configuration file, written by bw config server. It does not accept a server through an environment variable or a per-command flag, and it refuses to change servers while a session is active. SecretSpec therefore cannot switch servers for you.

Configure the CLI once, before logging in:

$ bw logout                                    # if already logged in

$ bw config server https://vault.company.com

$ bw login

$ bw unlock

$ export BW_SESSION="session-key-from-unlock"

With the CLI configured, ?server= records which server the project expects. SecretSpec compares it against the CLI’s current setting before each operation and fails with the commands above when they disagree, instead of silently reading or writing secrets on the wrong server:

# secretspec.toml — documents the expected server for the whole team
[providers]
company_vault = "bw://?server=https://vault.company.com"

Omit ?server= to accept whatever server the CLI is configured for.

Configuration

URI format

bw://[collection]
bw://[org@collection]
bw://?server=https://vault.company.com
bw://?type=login&field=password

• collection: Target collection, by name or by ID
• org@collection: Organization and collection, each by name or by ID
• type: Item type to require when matching an existing item and to use when creating a new one (login, card, identity, sshkey, or securenote)
• field: Built-in or custom field to read or write
• server: The self-hosted server this configuration expects. This does not configure the CLI — it is a guard that fails with remediation steps when the bw CLI is pointed somewhere else. See Self-hosted servers.

Organizations and collections (0.18+)

Names and IDs are interchangeable: SecretSpec resolves a name to the ID the bw CLI requires. Names match case-insensitively, and one containing a space must be percent-encoded (bw://Acme%20Inc@dev-secrets).

The organization is a scope and an assertion rather than a filter. It selects which dev-secrets you mean when several organizations have one, and it must agree with the collection you named — addressing a collection that lives somewhere else is an error rather than a silent search of the wrong place. A collection identifies its own organization, so naming the organization is optional whenever the collection name is unambiguous:

$ secretspec get DATABASE_URL --provider "bw://dev-secrets"

An address that cannot be resolved fails immediately and lists the organizations or collections that do exist. If a collection was created or shared with you recently, run bw sync so the CLI can see it.

URI examples

# Password Manager - Personal vault
$ secretspec set API_KEY --provider bw://

# Password Manager - Organization collection
$ secretspec set DATABASE_URL --provider "bw://myorg@dev-secrets"

# Password Manager - Self-hosted instance (CLI must already be configured
# for this server; see Self-hosted servers below)
$ secretspec set TOKEN --provider "bw://?server=https://vault.company.com"

# Password Manager - Specific item type and field
$ secretspec get 'MyApp Database' --provider 'bw://?type=login&field=username'

Project configuration

Define reusable aliases when a team uses a shared organization or collection:

secretspec.toml

[providers]
team_vault = "bw://myorg@dev-secrets"

[profiles.default.defaults]
providers = ["team_vault"]

Profiles can select different aliases or the provider directly:

secretspec.toml

[profiles.development.defaults]
providers = ["bw"]

[profiles.production.defaults]
providers = ["bw"]

Discover declarations (0.18+)

SecretSpec 0.18+ can initialize a manifest from the items visible through a Bitwarden provider URI. Scope discovery to a collection, and optionally an item type, so unrelated personal or organization-vault entries are not treated as application secrets:

$ secretspec init --from 'bw://myorg@dev-secrets?type=login' # 0.18+
✓ Created secretspec.toml with 8 secrets

Each item name becomes a SecretSpec key. Names must therefore contain only letters, numbers, and underscores, cannot start with a number, and cannot be the reserved name defaults. Bitwarden allows duplicate names and matches them case-insensitively; discovery stops when two selected items collide under those rules instead of generating an ambiguous manifest. Rename the items or use ?type= to select one type.

Discovery writes only names and generated descriptions to secretspec.toml; it never writes secret values. The --project and --profile discovery context does not change Bitwarden item names. To migrate the discovered values after reviewing the declarations, run the secretspec import command printed by init.

Environment overrides

Environment variables take precedence over organization, collection, item type, and default field values in the provider URI. A value left in the shell can therefore change an operation even when --provider supplies those settings; unset unwanted overrides before running SecretSpec:

$ export BITWARDEN_DEFAULT_TYPE=login

$ export BITWARDEN_DEFAULT_FIELD=password

$ export BITWARDEN_ORGANIZATION=myorg

$ export BITWARDEN_COLLECTION=dev-secrets

$ secretspec get DATABASE_PASSWORD --provider bw://

Organization and collection values can be names or IDs and resolve in the same way as values in the URI. The complete precedence is:

Setting	Highest to lowest precedence
Organization	BITWARDEN_ORGANIZATION, provider URI
Collection	BITWARDEN_COLLECTION, provider URI
Item type	BITWARDEN_DEFAULT_TYPE, provider URI
Field	Secret ref.field, BITWARDEN_DEFAULT_FIELD, provider URI, item-type default

Storage model

The Bitwarden provider supports every Password Manager item type. When an item type is selected through BITWARDEN_DEFAULT_TYPE or ?type=, it filters reads and updates to that type and selects the type of a newly created item. If neither is set, reads and updates accept any matching type, while new items are Logins.

Item types

Login items

# Get password field (default)
$ secretspec get 'Database Login' --provider 'bw://?type=login'

# Get username field
$ secretspec get 'Database Login' --provider 'bw://?type=login&field=username'

# Get custom field
$ secretspec get 'API Service' --provider 'bw://?type=login&field=api_key'

Credit card items

# Get API key from custom field (field required)
$ secretspec get 'Stripe Payment' --provider 'bw://?type=card&field=api_key'

# Get card number
$ secretspec get 'Company Card' --provider 'bw://?type=card&field=number'

SSH key items

# Get private key (default)
$ secretspec get 'Deploy Key' --provider 'bw://?type=sshkey'

# Get passphrase
$ secretspec get 'Deploy Key' --provider 'bw://?type=sshkey&field=passphrase'

Bitwarden requires an SSH key item to carry all three of the private key, public key and fingerprint — it rejects or discards an item that leaves any of them empty. When set creates one, the two fields it is not writing are therefore filled with (not set by SecretSpec). Replace them in Bitwarden if you need the real values, or write them yourself with ?field=public_key and ?field=key_fingerprint.

Identity items

# Get custom field (field required)
$ secretspec get 'Employee Record' --provider 'bw://?type=identity&field=employee_id'

# Get email field
$ secretspec get 'Personal Identity' --provider 'bw://?type=identity&field=email'

Secure note items

# Get value from secure note
$ secretspec get 'Legacy Config' --provider 'bw://?type=securenote&field=config_value'

Default fields

When no field is named, each item type uses the default below. The same default applies to reads and writes, so secretspec set followed by secretspec get returns what was written.

Item Type	Default field	Read also falls back to
Login	password	username, then a custom value field
Secure Note	custom value field	the note body
Card	number	a custom value field
Identity	email	username, then a custom value field
SSH Key	private_key	a custom value field

The default depends only on the item type, never on the secret or item name. The extra read fallbacks exist to make existing, hand-created vault items resolve; writes always target the default field itself.

To address anything else, name the field explicitly with ?field= or a ref mapping:

[profiles.default]
STRIPE_KEY = { description = "Card custom field", ref = { item = "Stripe Test Card", field = "api_key" } }
DEPLOY_PUBKEY = { description = "SSH public key", ref = { item = "Deploy SSH Key", field = "public_key" } }

Built-in field names and aliases resolve only to that built-in field. Custom field names first match in full, case-insensitively. If there is no exact match, SecretSpec uses the first custom field whose name contains the requested text, also case-insensitively. Use the complete custom-field name to avoid an unintended partial match. field = "notes" addresses a Secure Note’s body.

How items are matched (0.18+)

Item names are matched in full, case-insensitively — test database finds Test Database, but API_KEY never matches API_KEY_OLD. The bw CLI itself accepts a substring here, which works well interactively because it prints the candidates and lets you choose; a name in secretspec.toml is resolved with nobody watching, so a partial match would quietly read — or overwrite — a neighbouring item.

Bitwarden does not require names to be unique. When more than one item matches, SecretSpec refuses the address and lists the colliding IDs rather than picking one. Rename the items so the selected name is unique, or use ?type= when the collisions have different item types.

Adding ?type= narrows the match to that item type, on both reads and writes. That is how a Card and a Login of the same name stay separately addressable:

$ secretspec get API_KEY --provider "bw://?type=card"

Use existing secrets

The secret name selects an existing Bitwarden item by default:

$ secretspec get 'MyApp Database' --provider 'bw://?type=login'

Use a ref when the SecretSpec key and Bitwarden item name differ, or when a specific field is required:

secretspec.toml

[profiles.default]
DATABASE_URL = { description = "Application database", ref = { item = "MyApp Database", field = "password" }, providers = ["bw"] }

ref.item is matched against the Bitwarden item name, not its item ID.

CI/CD

Provide an unlocked session to the job as BW_SESSION, then select the provider as usual:

$ export BW_SESSION="session-key-from-unlock"

$ secretspec run --provider bw:// -- deploy

Treat the session key as a CI secret and avoid printing it in job logs.

Security considerations

• BW_SESSION unlocks the vault for the lifetime of the session, and the session can access everything granted to the signed-in account. Keep the session key out of checked-in configuration and shell history.
• Scope provider URIs to the intended organization and collection when possible.
• For self-hosted installations, use ?server= as a guard against operating on a differently configured vault.
• Ambiguous item names fail instead of selecting one silently; rename them or use ?type= when the duplicates have different item types.

Troubleshooting

CLI installation

Bitwarden CLI (bw) is not installed.

To install it:
  - npm: npm install -g @bitwarden/cli
  - Homebrew: brew install bitwarden-cli
  - Download: https://bitwarden.com/help/cli/

Server mismatch

When ?server= names a different server than the one the bw CLI is configured for, the operation stops before touching the vault and reports both addresses alongside the bw logout / bw config server / bw login / bw unlock sequence needed to correct it.