Who Needs This?
From HFT traders to DeFi protocols – who benefits from early transaction data
Traders & Trading Bots
High-frequency traders need to see large transactions before they impact prices. A 10-second advantage can mean the difference between profit and loss.
MEV Searchers
MEV opportunities exist in the tiny window between transaction submission and inclusion. See pending transactions with simulated logs.
DeFi Protocols
Smart contract platforms can use pending transaction data to predict gas price trends, optimize transaction timing, and detect attacks.
Blockchain Analytics Platforms
Companies building blockchain intelligence tools need real-time data feeds without managing infrastructure.
Key Features
What makes ethpending.com unique?
Simulated Logs
See transaction logs before execution. The only platform that delivers simulated logs for pending transactions.
Real-Time WebSocket API
Streaming API for instant access to Ethereum's mempool with sub-second latency.
Tiered Pricing
From Starter ($9.99) to Professional ($199.99) – choose the delay that fits your needs.
Production-Ready
AWS infrastructure, 99.9% uptime, automatic scaling, and comprehensive API documentation.
Secure & Authenticated
JWT tokens and API keys for secure access. Enterprise-grade security.
Comprehensive Documentation
Complete API documentation with examples, WebSocket connection guides, and best practices.
Pricing
Choose the delay that fits your requirements
Starter
- ✅10-second delay
- ✅WebSocket API access
- ✅Simulated logs
- ✅API documentation
Premium
- ✅6-second delay
- ✅WebSocket API access
- ✅Simulated logs
- ✅Priority support
- ✅Extended documentation
Professional
- ✅0-second delay
- ✅WebSocket API access
- ✅Simulated logs
- ✅24/7 premium support
- ✅SLA guarantee
- ✅Dedicated account manager
Technical Architecture
How we deliver real-time access to Ethereum's mempool
Frontend: Next.js 14
AWS Amplify for landing page and dashboard with automatic deployments and global CDN
WebSocket Server: Node.js
EC2 instance handling real-time connections with authentication, database queries, and tier-based delays
Ethereum Node
Custom infrastructure running Geth/Erigon with direct mempool access
Transaction Simulation
Ethers.js-based simulation of transaction logs before execution for complete context
Frequently Asked Questions About ethpending.com
Technologies & Tags