Skip to content
OpenParablePublic APIs

Watchdata API

API keyHTTPSBlockchain
Open documentation ↗

Overview

Provide simple and reliable API access to Ethereum blockchain

Watchdata is a blockchain API. Requests are authenticated with an API key. It is served over HTTPS.

At a glance

Authentication
API key
HTTPS
Yes
CORS
Unknown
Category
Blockchain

Questions

Does the Watchdata API need an API key?

Yes. The Watchdata API uses API key authentication; the documentation explains how to get credentials.

Does the Watchdata API support HTTPS?

Yes, the Watchdata API is served over HTTPS.

What are alternatives to the Watchdata API?

Other Blockchain APIs include Nownodes, Blockscout, Etherscan, Chainlink, Helium.

Compare alternatives →

Nownodes

Blockchain

Blockchain-as-a-service solution that provides high-quality connection via API

API key

Blockscout

Blockchain

Multichain block explorer REST API (with Etherscan-compatible JSON-RPC)

API keyCORS

Etherscan

Blockchain

Ethereum explorer API

API keyCORS

Chainlink

Blockchain

Build hybrid smart contracts with Chainlink

No auth

Helium

Blockchain

Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage

No auth

Dwellir

Blockchain

RPC endpoints for 150+ blockchain networks, including Ethereum, Solana, Polkadot and Hyperliquid

API keyCORS

Listed from public-apis (MIT), public-apis database (MIT).