DeFi Chain Metrics API

Real-time TVL, fees, volume, and on-chain data for 6 blockchains. Built for trading agents and DeFi dashboards.

A pay-per-call DeFi data API that serves blockchain metrics instantly via HTTP. No subscriptions, no rate-limit walls -- just $0.005 per API call with data refreshed every 5 minutes from DefiLlama, CoinGecko, Hyperliquid, and Etherscan.

What It Does

• 16 real-time metrics per chain: TVL, stablecoin market cap, fees, revenue, DEX volume, perps volume, token price, market cap, and more
• 6 major blockchains covered: Ethereum, Solana, BSC, Tron, Bitcoin, Arbitrum
• Sub-second responses via Apify Standby mode -- data is pre-cached and served instantly
• Built for automation -- trading bots, DeFi dashboards, portfolio trackers, and AI agents can query structured JSON without scraping

Supported Chains

Chain	Native Token	DeFi TVL Source	Explorer
Ethereum	ETH	DefiLlama	Etherscan
Solana	SOL	DefiLlama	--
BSC	BNB	DefiLlama	Etherscan v2
Tron	TRX	DefiLlama	--
Bitcoin	BTC	DefiLlama	--
Arbitrum	ARB	DefiLlama	Etherscan v2

Available Metrics

#	Metric Key	Description	Unit	Source
1	tvl	Total Value Locked	USD	DefiLlama
2	stablecoins_mcap	Stablecoin market cap on chain	USD	DefiLlama
3	chain_fees_24h	Total chain fees (24h)	USD	DefiLlama
4	chain_revenue_24h	Chain revenue (24h)	USD	DefiLlama
5	dex_volume_24h	DEX trading volume (24h)	USD	DefiLlama
6	perps_volume_24h	Perpetuals volume (24h)	USD	Hyperliquid / DefiLlama
7	token_incentives_24h	Token incentives / bribes (24h)	USD	DefiLlama
8	app_revenue_24h	Application revenue (24h)	USD	DefiLlama
9	app_fees_24h	Application fees (24h)	USD	DefiLlama
10	active_addresses_24h	Active addresses (24h)	count	Etherscan
11	new_addresses_24h	New addresses (24h)	count	Etherscan
12	transactions_24h	Transaction count (24h)	count	Etherscan
13	gas_used_24h	Gas used (24h)	wei	Etherscan
14	token_price	Native token price	USD	DefiLlama / CoinGecko
15	token_mcap	Native token market cap	USD	CoinGecko
16	token_volume_24h	Native token trading volume (24h)	USD	CoinGecko
--	bridged_tvl	Bridged TVL	USD	Unavailable -- no free source
--	net_inflows	Net bridge inflows	USD	Unavailable -- no free source

API Endpoints

This is a Standby API actor. Once running, it exposes these HTTP endpoints:

Get all metrics for a chain

$curl "https://gNoYlHf0L3druPJjI.apify.actor/metrics?chain=ethereum&token=YOUR_TOKEN"

Get a single metric

$curl "https://gNoYlHf0L3druPJjI.apify.actor/metrics?chain=ethereum&metric=tvl&token=YOUR_TOKEN"

List all chains and their data status

$curl "https://gNoYlHf0L3druPJjI.apify.actor/chains?token=YOUR_TOKEN"

Health check

$curl "https://gNoYlHf0L3druPJjI.apify.actor/health?token=YOUR_TOKEN"

Response Format

Full chain response (/metrics?chain=ethereum)

{
  "chain": "ethereum",
  "chain_name": "Ethereum",
  "updated_at": "2026-04-04T05:31:48.331Z",
  "metrics": {
    "tvl": {
      "value": 52820000000,
      "formatted": "$52.82B",
      "unit": "USD"
    },
    "stablecoins_mcap": {
      "value": 165560000000,
      "formatted": "$165.56B",
      "unit": "USD"
    },
    "chain_fees_24h": {
      "value": 46010000,
      "formatted": "$46.01M",
      "unit": "USD",
      "change_1d": -5.2
    },
    "dex_volume_24h": {
      "value": 4460000000,
      "formatted": "$4.46B",
      "unit": "USD",
      "change_1d": 12.1
    },
    "token_price": {
      "value": 2050,
      "formatted": "$2.05K",
      "unit": "USD"
    },
    "token_mcap": {
      "value": 247650000000,
      "formatted": "$247.65B",
      "unit": "USD"
    },
    "perps_volume_24h": {
      "value": 2120000000,
      "formatted": "$2.12B",
      "unit": "USD",
      "source": "hyperliquid"
    }
  },
  "cache_age_seconds": 45,
  "is_stale": false
}

Single metric response (/metrics?chain=ethereum&metric=tvl)

{
  "chain": "ethereum",
  "chain_name": "Ethereum",
  "metric": "tvl",
  "value": 52340000000,
  "formatted": "$52.34B",
  "unit": "USD",
  "updated_at": "2026-04-03T12:00:00.000Z",
  "cache_age_seconds": 45,
  "is_stale": false
}

Pricing

$0.005 per API call -- pay-per-event via Apify platform billing.

Usage	Monthly Cost
100 calls/day	$15/month
500 calls/day	$75/month
1,000 calls/day	$150/month
5,000 calls/day	$750/month

No subscriptions. No minimum commitment. You only pay for what you use.

Why Not Just Use DefiLlama?

DefiLlama Pro API costs $300/month for unlimited access. This API serves the same underlying data per-call at $0.005.

A trading agent making 1,000 calls/day pays ~$150/month -- 50% cheaper with no commitment. If you only need 100 calls/day, you pay just $15/month instead of $300.

For AI agents and bots that need structured blockchain metrics on demand, per-call pricing beats flat subscriptions every time.

Architecture

graph LR
    A[Client / Trading Bot] -->|HTTP GET| B[Standby API Server]
    B -->|Read| C[Apify Key-Value Store]
    D[Refresh Loop] -->|Write every 5min| C
    D -->|Fetch| E[DefiLlama API]
    D -->|Fetch| F[CoinGecko API]
    D -->|Fetch| G[Hyperliquid API]
    D -->|Fetch| H[Etherscan v2 API]

    style B fill:#2563eb,color:#fff
    style C fill:#7c3aed,color:#fff
    style D fill:#059669,color:#fff

Data flow:

1. The Refresh Loop fetches metrics from 4 free data sources every 5 minutes
2. Metrics are cached in an Apify Key-Value Store per chain
3. The Standby API Server serves cached data instantly on HTTP GET requests
4. Each successful /metrics call charges $0.005 via Apify pay-per-event billing

Input Configuration

Parameter	Type	Default	Description
enabledChains	array	All 6 chains	Which chains to fetch metrics for
refreshIntervalMs	integer	300000 (5 min)	How often to refresh data from sources
etherscanApiKey	string	--	Free API key from etherscan.io for on-chain metrics

Use Cases

• Crypto trading bots -- feed TVL and volume data into signal models
• DeFi dashboards -- display real-time chain metrics without managing data pipelines
• Portfolio trackers -- monitor token prices and market caps across chains
• AI agents -- structured JSON responses ready for LLM tool-use and function calling
• Research -- compare chain fees, revenue, and activity across L1s and L2s

Keywords

DeFi data API, blockchain metrics API, TVL API, crypto trading data, chain fees API, DeFi dashboard data, on-chain analytics, Ethereum metrics, Solana metrics, BSC metrics, Bitcoin DeFi, Arbitrum data, DefiLlama alternative, crypto market data API, real-time blockchain data