Celo Blockchain
Data Indexing API

Celo Quick Facts

Celo is an EVM-compatible Layer-1 protocol. The Celo platform offers a decentralized address-based identity layer that makes it easy to send payments.

GoldRush API Developer Docs

Tutorials, guides and references on the GoldRush API.

GoldRush API Reference

Complete reference documentation for the GoldRush API.

Developer SDK

Official open-source client libraries for your favorite platforms.

FAQ

These FAQs are a self-serve support resource for the GoldRush API.

Base URL

The API Host for all requests is https://api.covalenthq.com/v1. Some additional points to keep in mind:

  • All requests are done over HTTPS (calls over plain HTTP will fail.)
  • The default return format for all endpoints is JSON unless the query parameter format=csv is specified.
  • All requests require authentication.

Authentication

To access the GoldRush API, you will need an API key. Various authentication mechanisms are available:

Authentication via Query parameter

curl -X GET https://api.covalenthq.com/v1/ENDPOINT/?key=API_KEY

Append key=API_KEY as a query parameter to all requests.

Authentication via Basic Auth

 curl -X GET https://api.covalenthq.com/v1/ENDPOINT/ \
                -u API_KEY:
                -H 'Content-Type: application/json'
                # The colon prevents curl from asking for a password.

Provide your API key as the basic auth username. You do not need to provide a password.

Chain name
celo-mainnet
Chain ID
42220
Block explorer
Blocktime5 seconds
Historical balances❌
NFT assets and metadata❌
Query via SQL on Increment✅

Mainnet

Chain name
celo-mainnet
Chain ID
42220
Block explorer
Blocktime5 seconds
Historical balances❌
NFT assets and metadata❌
Query via SQL on Increment✅

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Supported Endpoints

Get token approvals for address
Get NFT approvals for address
Get token balances for address
Get historical portfolio value over time
Get ERC20 token transfers for address
Get native token balance for address
Get a block
Get resolved address for registered address
Get block heights
Get logs
Get log events by contract address
Get log events by topic hash(es)
Get gas prices
Get chain collections
Get NFTs for address
Get NFTs from contract with metadata
Get single NFT with cached metadata from contract
Get NFT transactions for contract
Get traits for a collection
Get attributes for a collection trait
Get trait summary for collection
Check ownership in NFT collection
Check ownership in NFT collection for specific token
Get historical sales count for a collection
Get historical volume for a collection
Get historical floor prices for a collection
Get historical token prices
Get a transaction
Get recent transactions for address (v3)
Get paginated transactions for address (v3)
Get bulk time bucket transactions for address (v3)
Get earliest transactions for address (v3)
Get all transactions in a block by page (v3)
Get all transactions in a block (v3)
Get all transactions in a block (v3)
Get transaction summary for address

Code Samples

Get token balances for address

GET /v1/{chainName}/address/{walletAddress}/balances_v2/

Commonly used to fetch the native, fungible (ERC20), and non-fungible (ERC721 & ERC1155) tokens held by an address. Response includes spot prices and other metadata.

Costs:
1.00 Credits
Processing:
Realtime
Related guides:  Comparing GoldRush’s Token Balances API to RPC Providers, Building a Web3 Portfolio Tracker with the GoldRush API, Building Web3 Wallets (Part 1) - Token Displays,
Installation
npm install @covalenthq/client-sdk
Request
import { CovalentClient } from "@covalenthq/client-sdk";

const ApiServices = async () => {
    const client = new CovalentClient("YOUR_API_KEY");
    const resp = await client.BalanceService.getTokenBalancesForWalletAddress();
    console.log(resp.data);
}