Skip To Content

Blockdaemon Documentation

Postman (Quick Start)

1. Generate a Ubiquity API Key on Blockdaemon App
2. Install Postman
3. Authorize a Request with Ubiquity
4. Send a Request with Ubiquity
5. Receive a Response


This guide allows you to quickly get started with Ubiquity.

Within this guide, we explain how to use Ubiquity with Postman. Alternative clients and methods of access are available: see quick start guides for other tools.

1. Generate a Ubiquity API Key on Blockdaemon App

To use the Ubiquity API, you need to get the API access key. This is a 47-character unique number.

To generate a Ubiquity API key, sign up to the Blockdaemon application and take the following steps:

  1. Navigate to the Ubiquity API section
  2. Click on Start using the Blockdaemon API
  3. In the pop-up window, enter your desired Key Name
  4. Click on the Create API Key button to generate the key
  5. Click on your key to copy it

Existing Blockdaemon API key holders:

  • Navigate to Ubiquity API > Configure
  • Click on Create New Key
  • Take steps 3–5 above

Check out Keke’s video guide on creating your Ubiquity API Key

Please note:

  • If you lose the key, you will not be able to retrieve it.
  • You should immediately store your key in a secure place.

2. Install Postman

The easiest way to access Ubiquity is via a GUI API client, for example, Postman (Alternative clients and methods of access are available).

You can sign up to Postman and either:

  • Install the application on your computer
  • Use the web version

3. Authorize a Request with Ubiquity

You need to authorize your request before sending:

  1. Go to your workspace in Postman
  2. Click on the ‘+’ button on the top to open a new tab
  3. Navigate to the Authorization tab under the URL input field
  4. Select Bearer Token from the Type drop-down menu
  5. Paste your API key into the Token input box

4. Send a Request with Ubiquity

This example uses Ubiquity to get the current block number in Ethereum Mainnet:

  1. In the URL input field, paste the following address:
  2. Select GET from the drop-down menu on the left
  3. Click on the Send button on the right

5. Receive a Response

The API response is displayed at the bottom part of Postman, in the Body tab.

The received output contains the number of the current block in Ethereum Mainnet:


Learn more about the endpoint: GET Current Block Number (V1)

We don't support Internet Explorer

Please use Chrome, Safari, Firefox, or Edge to view this site.