Real-Time AI-Powered Ethereum Intelligence API
Access real-time Ethereum blockchain data with advanced semantic search, vector embeddings, and LLM-powered query processing. Built for developers who need intelligent blockchain insights.
Start exploring immediately with 50 complimentary API calls. No credit card required to get started.
const response = await fetch(
'https://api.chainfetch.app/api/v1/ethereum/addresses/semantic_search?' +
new URLSearchParams({
query: 'whale addresses with DeFi activity',
limit: '10'
}), {
method: 'GET',
headers: {
'accept': 'application/json',
'authorization': 'Bearer TOKEN'
}
});
const data = await response.json();
console.log(data.result.points);
Real-Time AI Block Analysis
See how our AI analyzes each Ethereum block in real-time, providing deep insights into network activity, transaction patterns, and economic movements.
Latest Block Analysis
AI-Powered Blockchain Intelligence
ChainFetch combines real-time blockchain streaming with advanced AI to deliver intelligent insights into Ethereum's transaction ecosystem. Experience the future of blockchain data analysis.
Real-Time Block Streaming
WebSocket subscription to Ethereum's public nodes captures new blocks every ~12 seconds, instantly processing each block for comprehensive analysis.
AI-Powered Semantic Search
Leveraging Qwen3-Embedding-0.6B model to transform blockchain data into high-dimensional vector embeddings for intelligent semantic similarity search.
LLM-Powered Query Processing
LLaMA 3.2 3B model intelligently translates natural language queries into precise API parameters, supporting 150+ address parameters and 120+ block parameters.
Qdrant Vector Database
Ultra-fast vector similarity search across addresses, transactions, and blocks collections with sub-second semantic query responses.
Multi-Modal Search Options
Choose from semantic search (vector similarity), LLM search (AI-assisted parameters), or JSON search (direct parameter filtering) based on your needs.
Production-Ready Infrastructure
Kubernetes-native deployment with auto-scaling, rate-limited API access, and comprehensive OpenAPI 3.1 documentation for enterprise reliability.
Comprehensive Blockchain Data Access
Our API provides powerful search capabilities on the Ethereum blockchain. Perform intelligent queries on Blocks, Transactions, Addresses, Smart Contracts, and Tokens using semantic search, LLM-powered queries, AI summaries, or direct JSON filtering.
Semantic Search Endpoint
Query blockchain data using natural language. Our AI-powered semantic search understands intent and context to find relevant addresses, transactions, and blocks using vector embeddings and similarity matching.
{
"result": {
"points": [
{
"id": 1,
"score": 0.95,
"payload": {
"address_summary": "High-value DeFi whale..."
}
}
]
}
}
AI Summary Endpoint
Generate intelligent AI-powered summaries of blockchain entities. Our advanced models analyze addresses, transactions, tokens, and blocks to create comprehensive human-readable descriptions with contextual insights and behavioral analysis.
{
"summary": "Address 0x742d... is a standard EOA with
1,247.3 ETH, classifying it as a 'Whale'.
The address has executed 892 transactions
and interacted with protocols like Uniswap,
Aave, and Compound. It demonstrates high
DeFi activity with diversified holdings..."
}
LLM Search Endpoint
Let AI select the best parameters for your query. Our LLaMA 3.2 3B model analyzes your natural language request and intelligently chooses from 150+ address parameters, 254 transaction parameters, or 120+ block parameters.
Input: "addresses ordered by eth balance"
AI Response:
{
"count": 10,
"parameters_used": {
"limit": 10,
"sort_by": "eth_balance",
"sort_order": "desc"
},
"addresses": [
"0x267be1C1D684F78cb4F6a176C4911b741E4Ffdc0",
"0x28C6c06298d514Db089934071355E5743bf21d60",
"0xA9Ac43f5b5e38155A288d1A01D2cbc4478E14573"
]
}
JSON Search Endpoint
Direct parameter-based filtering with real-time data enrichment. Use precise filters across addresses (150+ params), transactions (254 params), and blocks (120+ params) for exact control over your queries.
{
"results": [
{
"id": 1,
"address_hash": "0x742d35...",
"data": {
"eth_balance": "1500.5",
"is_contract": false
}
}
],
"pagination": {
"total": 1247
}
}
Block Summary WebSocket Streaming
Real-time blockchain data streaming via WebSocket. Subscribe to live Ethereum block feeds and receive instant notifications as new blocks are mined and processed through our AI pipeline.
// Connection established
{
"type": "welcome"
}
// Real-time block data
{
"identifier": "{\"channel\":\"EthereumBlocksChannel\"}",
"message": {
"block_number": 23134685,
"summary": "Block 23134685 was mined with 232 transactions and 16 withdrawals. Size: 148.21 KB, Gas used: 55.67%. Base fee: 1.19 gwei, fees: 0.049268 ETH, transfers: 36.345481 ETH. 229 succeeded, 3 failed. 373 unique addresses, 155 contract calls..."
}
}
Intelligent Data Pipeline Architecture
ChainFetch operates as a sophisticated blockchain intelligence engine that transforms raw Ethereum data into actionable insights through advanced AI processing.
Real-Time Processing Pipeline
WebSocket Block Streaming
Persistent connection to wss://ethereum-rpc.publicnode.com captures new blocks every ~12 seconds via eth_subscribe ["newHeads"]
Intelligent Data Enrichment
Async jobs extract transactions, discover addresses, and build interaction graphs with probabilistic AI summary generation (2% transactions, 6.7% addresses)
Vector Embedding Generation
Qwen3-Embedding-0.6B (Q8_0 quantized) transforms summaries into high-dimensional vectors stored in specialized Qdrant collections
Multi-Modal Query Processing
Support for semantic similarity search, LLM-powered parameter selection, and direct JSON filtering with concurrent processing for maximum throughput
AI & ML Stack
Advanced AI Processing
Infrastructure
Production-Ready Deployment
Built for Modern Blockchain Applications
From DeFi analytics to compliance monitoring, ChainFetch powers intelligent blockchain applications across industries.
DeFi Analytics
Track liquidity flows, yield farming strategies, and protocol interactions. Identify trending DeFi protocols and analyze user behavior patterns.
Compliance & AML
Monitor suspicious activities, track fund flows, and ensure regulatory compliance. Identify risk patterns and flag unusual transaction behaviors.
NFT Market Intelligence
Analyze NFT trading patterns, collection performance, and market trends. Track holder behavior and identify emerging collections.
Portfolio Management
Real-time portfolio tracking, performance analytics, and risk assessment. Monitor holdings across multiple addresses and protocols.
Research & Analytics
Deep blockchain research, market analysis, and academic studies. Access comprehensive datasets for quantitative analysis.
Smart Contract Monitoring
Monitor smart contract interactions, gas optimization, and security events. Track contract upgrades and usage patterns.
Pay Only for What You Use
Transparent, credit-based pricing with no hidden fees. Every API endpoint costs exactly 1 credit - whether it's semantic search, LLM processing, or direct queries. Start with 50 free credits!
Simple, Transparent Pricing
How Credits Work
Ready to Build with ChainFetch?
Experience the power of AI-driven blockchain intelligence. Get instant access to real-time Ethereum data with semantic search capabilities.