Polygon Onchain Data API

Get token balances, transactions, and OHLCV pricing data for Polygon. 39 endpoints supported. Testnet supported.

Overview

Polygon PoS is the most battle-tested Ethereum scaling solution with 1.3B+ transactions, 130M wallets, and 2.7M monthly active users. The proven choice for production-grade applications.

GoldRush offers the most comprehensive Polygon Data API suite for developers, analysts, and enterprises. Whether you’re building a DeFi dashboard, a wallet, a trading bot, an AI agent or a compliance platform, our Polygon Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need.

Supported APIs

Foundational API

Access structured historical blockchain data across 100+ chains using REST APIs. Get token balances, transaction histories, decoded event logs, NFT assets, token holders and more.

Use cases: Wallets, portfolio trackers, crypto accounting & tax tools, and DeFi dashboards.

Read docs

Streaming API

Subscribe to real-time blockchain events with sub-second latency using GraphQL over WebSockets. Track token transfers, DEX activity, wallet movements, and OHLCV candlestick data across fast chains like Base and Solana.

Use cases: Trading bots & dashboards, gaming, and AI Agents.

Read docs

Pipeline API

Stream blockchain data directly to your own infrastructure. Push decoded blocks, transactions, event logs, and protocol-specific data into your database, warehouse, queue, or webhook with ABI decoding and SQL transforms built in.

Use cases: Data warehousing, analytics dashboards, ETL pipelines, and backend indexing.

Read docs

Mainnet

Property	Value
Chain Name	matic-mainnet (Foundational API) / MATIC_MAINNET (Streaming API)
Chain ID	137
Network Type	Foundational Chain
Support Level	foundational
Block Explorer	PolygonScan
Official Website	Polygon Website
Native Gas Token	MATIC

Testnet

Property	Value
Chain Name	polygon-amoy-testnet
Chain ID	80002
Purpose	Development and testing network
Support Level	foundational
Block Explorer	Amoy PolygonScan
Official Website	Polygon Amoy Testnet Website
Native Gas Token	gwei

API Usage

To use this blockchain network in GoldRush API calls, use:

Chain Name

• matic-mainnet / MATIC_MAINNET (mainnet)
• polygon-amoy-testnet (testnet)

Example API Calls

Chain Name (Mainnet)

curl -X GET "https://api.covalenthq.com/v1/matic-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=<GOLDRUSH_API_KEY>"

curl -X GET "https://api.covalenthq.com/v1/polygon-amoy-testnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=<GOLDRUSH_API_KEY>"

SDK Usage

TypeScript SDK (Mainnet)

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("<GOLDRUSH_API_KEY>");
const resp = await client.BalanceService.getTokenBalancesForWalletAddress({
    chainName: "matic-mainnet",
    walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
});

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("<GOLDRUSH_API_KEY>");
const resp = await client.BalanceService.getTokenBalancesForWalletAddress({
    chainName: "polygon-amoy-testnet",
    walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
});

Foundational API Support

This chain supports 28 GoldRush Foundational APIs:

Wallet API

• Get token holders as of any block height (v2) on Polygon
• Get historical token balances for address on Polygon
• Get token balances for address on Polygon
• Get native token balance for address on Polygon
• Get historical portfolio value over time on Polygon
• Get ERC20 token transfers for address on Polygon

NFT API

• Get NFTs for address on Polygon
• Check ownership in NFT collection on Polygon
• Check ownership in NFT collection for specific token on Polygon

Pricing API

• Get pool spot prices on Polygon
• Get historical token prices on Polygon

Security API

• Get token approvals for address on Polygon

Transactions API

• Get a transaction on Polygon with-traces
• Get transaction summary for address on Polygon
• Get earliest transactions for address (v3) on Polygon with-traces
• Get recent transactions for address (v3) on Polygon with-traces
• Get paginated transactions for address (v3) on Polygon with-traces
• Get bulk time bucket transactions for address (v3) on Polygon
• Get all transactions in a block (v3) on Polygon
• Get all transactions in a block by page (v3) on Polygon

Block Explorer API

• Get a block on Polygon
• Get all chain statuses on Polygon
• Get all chains on Polygon
• Get block heights on Polygon
• Get gas prices on Polygon
• Get log events by contract address on Polygon
• Get log events by topic hash(es) on Polygon
• Get logs on Polygon

Streaming API Support

This chain supports 11 GoldRush Streaming APIs:

• New DEX Pairs Stream on Polygon
• OHLCV Pairs Stream on Polygon
• OHLCV Tokens Stream on Polygon
• Update Pairs Stream on Polygon
• Update Tokens Stream on Polygon
• Wallet Activity Stream on Polygon
• OHLCV Pairs Query on Polygon
• OHLCV Tokens Query on Polygon
• Token Search Query on Polygon
• Top Trader Wallets for Token Query on Polygon
• Wallet PnL by Token Query on Polygon

Pipeline API Support

This chain supports 4 GoldRush Pipeline API data objects that can be streamed to your infrastructure:

• Blocks
• Transactions
• Logs
• Transfers

Additional Resources

• GoldRush API Documentation
• Supported Chains List
• API Reference