Getting Started

Quick guide to getting started with Alchemy x Crypto.org development.

📋 Overview

This guide assumes you already have an Alchemy Crypto.org account and access to our Dashboard.

1. 🔑 Create an Alchemy App

2. ✍ Make a request

1.🔑Create an Alchemy App

To use Alchemy's products, you need an API key to authenticate your requests.

You can create API keys from the dashboard. To make a new key, click on the "Create App" button circled below:

Fill in the details under "Create App" to get your new key. There are two options for networks: Mainnet and Croeseid (the API methods for both are the same).

At anytime, you can visit your dashboard homepage and view your app's keys by clicking the key icon on the far right.

2.✍️Make a Request

You can interact with Alchemy's Crypto.org API through Tendermint or gRPC.

NOTE: Tendermint has two forms of RPC protocols:

1. URI/HTTP: a REST like interface

2. JSONRPC/HTTP: can be POST'd to the root RPC endpoint via HTTP.

Here is an example you can run from the command line to retrieve the block at height 1:

Tendermint

URI

curl cro-croeseid.alchemyapi.io/your-api-key/tendermint/block?height=1

JSON-RPC

curl --header "Content-Type: application/json" --request POST --data '{"method": "block", "params": ["1"], "id": 1}' cro-croeseid.alchemyapi.io/your-api-key/tendermint

gRPC

curl cro-croeseid.alchemyapi.io/your-api-key/grpc-reset/blocks/1

We've created an API key called your-api-key so you can easily copy, paste, and test these sample requests. However, you should replace your-api-key with your actual unique API key when developing.

Results:

{
  "id": 0,
  "jsonrpc": "2.0",
  "result": {
    "block_id": {
      "hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
      "parts": {
        "total": 1,
        "hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
      }
    },
    "block": {
      "header": {
        "version": {
          "block": "10",
          "app": "0"
        },
        "chain_id": "cosmoshub-2",
        "height": "12",
        "time": "2019-04-22T17:01:51.701356223Z",
        "last_block_id": {
          "hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
          "parts": {
            "total": 1,
            "hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
          }
        },
        "last_commit_hash": "21B9BC845AD2CB2C4193CDD17BFC506F1EBE5A7402E84AD96E64171287A34812",
        "data_hash": "970886F99E77ED0D60DA8FCE0447C2676E59F2F77302B0C4AA10E1D02F18EF73",
        "validators_hash": "D658BFD100CA8025CFD3BECFE86194322731D387286FBD26E059115FD5F2BCA0",
        "next_validators_hash": "D658BFD100CA8025CFD3BECFE86194322731D387286FBD26E059115FD5F2BCA0",
        "consensus_hash": "0F2908883A105C793B74495EB7D6DF2EEA479ED7FC9349206A65CB0F9987A0B8",
        "app_hash": "223BF64D4A01074DC523A80E76B9BBC786C791FB0A1893AC5B14866356FCFD6C",
        "last_results_hash": "",
        "evidence_hash": "",
        "proposer_address": "D540AB022088612AC74B287D076DBFBC4A377A2E"
      },
      "data": [
        "yQHwYl3uCkKoo2GaChRnd+THLQ2RM87nEZrE19910Z28ABIUWW/t8AtIMwcyU0sT32RcMDI9GF0aEAoFdWF0b20SBzEwMDAwMDASEwoNCgV1YXRvbRIEMzEwMRCd8gEaagom61rphyEDoJPxlcjRoNDtZ9xMdvs+lRzFaHe2dl2P5R2yVCWrsHISQKkqX5H1zXAIJuC57yw0Yb03Fwy75VRip0ZBtLiYsUqkOsPUoQZAhDNP+6LY+RUwz/nVzedkF0S29NZ32QXdGv0="
      ],
      "evidence": [
        {
          "type": "string",
          "height": 0,
          "time": 0,
          "total_voting_power": 0,
          "validator": {
            "pub_key": {
              "type": "tendermint/PubKeyEd25519",
              "value": "A6DoBUypNtUAyEHWtQ9bFjfNg8Bo9CrnkUGl6k6OHN4="
            },
            "voting_power": 0,
            "address": "string"
          }
        }
      ],
      "last_commit": {
        "height": 0,
        "round": 0,
        "block_id": {
          "hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
          "parts": {
            "total": 1,
            "hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
          }
        },
        "signatures": [
          {
            "type": 2,
            "height": "1262085",
            "round": 0,
            "block_id": {
              "hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
              "parts": {
                "total": 1,
                "hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
              }
            },
            "timestamp": "2019-08-01T11:39:38.867269833Z",
            "validator_address": "000001E443FD237E4B616E2FA69DF4EE3D49A94F",
            "validator_index": 0,
            "signature": "DBchvucTzAUEJnGYpNvMdqLhBAHG4Px8BsOBB3J3mAFCLGeuG7uJqy+nVngKzZdPhPi8RhmE/xcw/M9DOJjEDg=="
          }
        ]
      }
    }
  }
}