Skip to main content

A python API to query a 1Password account using the 'op' command-line tool

Project description



A Python API to sign into and query a 1Password account using the op command.


  • Python >= 3.8
  • 1Password command-line tool >= 2.0.0
  • Internet connectivity to
    • The op command queries your online account, not your local vault

Note: This version of pyonepassword does not support deprecated op 1.x versions. Support for those versions is still available, albeit with minimal maintanence. See pyonepassword-legacy for more information.


python3 -m pip install pyonepassword


pyonepassword essentially has two parts:

  1. Convenience Python classes for the various objects that the op command returns
  2. A full-fledged API for querying a 1Password account

If you already have a workflow to drive the op command, handle authentication, and so forth, but would benefit from an API that can ingest op's JSON and give you Python objects, you're in luck, number one might be just what you need.

On the other hand, if you're using op manually (maybe along side jq), or in shell scripts (or maybe not at all), and you'd like a full-service Python API rather than console commands, number two does that.

We'll get into some examples below for both of these.

Example Usage

Object API

pyonepassword provides Python classes for many of the objects op returns, including:

  • Several "item" types (login, password, secure note, etc)
  • User
  • User List (e.g., from 'op user list')
  • Group
  • Group List
  • Vault
  • Vault List
  • Account
  • Account List

All of these classes provide assorted convenience properties. For example obj.created_at returns a proper Python datetime object.

All of the object types are fundamentally dictionaries, so their data can be accessed as such, and they can be serialized back to JSON.

Also, all classes can be instantiated from either directly from a JSON string, or from an unserialized object.

Take the following Login item as an example:

  "id": "4smjvvepfbg3hencrmo7cozphe",
  "title": "Example Login",
  "version": 2,
  "vault": {
    "id": "yhdg6ovhkjcfhn3u25cp2bnl6e"
  "category": "LOGIN",
  "last_edited_by": "RAXCWKNRRNGL7I3KSZOH5ERLHI",
  "created_at": "2021-06-29T18:42:03Z",
  "updated_at": "2022-03-17T03:40:49Z",
  "sections": [
      "id": "linked items",
      "label": "Related Items"
  "fields": [
      "id": "password",
      "type": "CONCEALED",
      "purpose": "PASSWORD",
      "label": "password",
      "value": "doth-parrot-hid-tussock-veldt",
      "password_details": {
        "strength": "FANTASTIC"
      "id": "username",
      "type": "STRING",
      "purpose": "USERNAME",
      "label": "username",
      "value": "zcutlip"
      "id": "notesPlain",
      "type": "STRING",
      "purpose": "NOTES",
      "label": "notesPlain"
  "urls": [
      "href": ""
      "primary": true,
      "href": ""

In just a line of Python, you can create an OPLoginItem object:

from pyonepassword.api.object_types import OPLoginItem

login_item = OPLoginItem(login_item_json)


# login_item is also a dictionary:
print(login_item["username"] == login_item.username)

Example usage of the OP class

If you want to fully automate connecting to and querying a 1Password account, that's what the OP class is for. It handles authentication (except for initial sign-in). And provides methods that are congruent to many of the op CLI tool's subcommands, such as:

  • item_get()
  • item_list()
  • user_get()
  • user_list()...

... and so forth.

All of these methods return objects types as described above. Also, item_get() returns the appropriate object type for the item, such as OPLoginItem or OPSecureNoteItem, as long as pyonepassword has a class for the returned item type.

and item retrieval

Below is an example demonstrating:

  • Sign-in
  • Specifying a default vault for queries
  • Retrieving an item from 1Password by name or by UUID
  • Overriding the default vault to retrieve a subsequent item from 1Password
import getpass

from pyonepassword import OP
from pyonepassword.api.exceptions import (

# See examples/ for more sign-in examples
def do_signin():
    # Let's check If biometric is enabled
    # If so, no need to provide a password
    if OP.uses_biometric():
            # no need to provide any authentication parameters if biometric is enabled
            op = OP()
        except OPNotSignedInException:
            print("Uh oh! Sign-in failed")
        # prompt user for a password (or get it some other way)
        my_password = getpass.getpass(prompt="1Password master password:\n")
        # You may optionally provide an account shorthand if you used a custom one during initial sign-in
        # shorthand = "arbitrary_account_shorthand"
        # return OP(account_shorthand=shorthand, password=my_password)
        # Or we'll try to look up account shorthand from your latest sign-in in op's config file
        op = OP(password=my_password)
    return op

def main():
  	op = do_signin()
    item_password = op.item_get_password("Example Login")

    # We can also look up the item by its UUID
    # as well as retrieve from an alternate vault
    item_password = op.item_get_password(
      "ykhsbhhv2vf6hn2u4qwblfrmg4", vault="Private")

Document retrieval

Below is an example demonstrating:

  • Retrieving a document and its file name from 1Password, based on item name
  • Retrieving a document & file name from 1Password, based on UUID
op = do_signin()
# File name and document title in 1Password are often different.
# so we get back the file name, and the bytes object representing the document
file_name, document_bytes = op.document_get("Example Login - 1Password Logo")

# we can also look up the document by UUID
file_name, document_bytes = op.document_get(
open(file_name, "wb").write(document_bytes)

Signing out of 1Password

Below is an example demonstrating:

  • Signing in, then signing out of 1Password
  • Signing out and also forgetting a 1Password account

Note: Currently pyonepassword's sign-out & forget support requires a signed-in session. It is not yet possible to forget an arbitrary account.

def main():
	  op = do_signin()

    # do signout

		    print(op.item_get_password("Example Login"))
     except OPItemGetException:
      	# lookup fails since we signed out

    # now let's sign in again, then signout with forget=True
    op = do_signin()

    except OPSigninException:
				# Sign-in fails since we erased the initial sign-in with forget=True

Getting Details for a User

op = OP(password=my_password)

# User's name:
user: OPUser = op.user_get("Firstname Lastname")

# or the user's UUID
user: OPUser = op.user_get(user_uuid)

Getting Details for a Group

op = OP(password=my_password)

# Group name:
group: OPGroup = op.group_get("Team Members")

# or the group's UUID
group: OPGroup = op.group_get("yhdg6ovhkjcfhn3u25cp2bnl6e")

Getting Details for a Vault

op = OP(password=my_password)

# Group name:
vault: OPVault = op.vault_get("Test Data")

# or the group's UUID
vault: OPVault = op.vault_get("yhdg6ovhkjcfhn3u25cp2bnl6e")

Extending Item Types

If any of the item types (login, password, etc.) are missing or don't provide sufficient properties or methods, it's very easy to add new ones or extend existing ones.

Here's an example extending OPLoginItem.

from pyonepassword import OP
from pyonepassword.api.decorators import op_register_item_type
from pyonepassword.api.object_types import OPLoginItem

class OPEnhancedLoginItem(OPLoginItem):

    def custom_property(self):
      return self["custom_field"]

op = OP()
enhanced_login = op.item_get("Example Login", vault="Test Data")


Item Deletion

from pyonepassword import OP  # noqa: E402
from pyonepassword.api.exceptions import OPItemDeleteException  # noqa: E402

def main():
    op: OP()
        # op.item_delete() can take any identifier accepted by the 'op' command:
        # Usage:  op item delete [{ <itemName> | <itemID> | <shareLink> | - }] [flags]
        deleted_uuid = op.item_delete("Example Login")  # noqa: F841
        # if desired inspect resulting UUID to ensure it's what was
        # Expected
    except OPItemDeleteException as ope:
        # 'op' command can fail for a few reaons, including
        # - item not found
        # - duplicate item names
        # Inspect the error message from the command

Item Creation

For details on creating new items in a 1Password vault, see

More Examples

Lots more examples are available in the examples directory

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pyonepassword-3.3.5.tar.gz (51.9 kB view hashes)

Uploaded source

Built Distribution

pyonepassword-3.3.5-py3-none-any.whl (71.4 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page