Codex Data API
CryptocurrencyReal-time and historical token prices, charts and wallet data across 80+ blockchain networks and two prediction markets.
📚 Documentation & Examples
Everything you need to integrate with Codex Data API
🚀 Quick Start Examples
// Codex Data API API Example
const response = await fetch('https://www.codex.io', {
method: 'GET',
headers: {
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);Codex Data API
Codex is a GraphQL API for enriched, real-time blockchain data: token prices, OHLCV charts, holders, balances, trades, aggregates, launchpad data, and prediction markets — covering 70M+ tokens and 700M+ wallets across 80+ EVM and non-EVM networks (Ethereum, Solana, Base, Arbitrum, BNB Chain, Sui, Aptos and more), with sub-second data availability. Built by the team behind Defined.fi, it powers on-chain data for Coinbase, TradingView, Uniswap, and Magic Eden.
GraphQL endpoint: https://graph.codex.io/graphql · WebSocket: wss://graph.codex.io/graphql
Docs: docs.codex.io · LLM-friendly docs: docs.codex.io/llms.txt
How to Get a Codex API Key
- Sign up on the Codex Dashboard — the Free plan needs no card.
- Open the API Keys page in the dashboard and copy your key.
- Send it in the
Authorizationheader of GraphQL requests.
Free tier: 10,000 requests/month at 5 requests/second with 1 API key. Growth starts at $350/month for 1M requests and WebSocket/webhook access — see pricing.
First Request
curl https://graph.codex.io/graphql \
-X POST \
-H "Content-Type: application/json" \
-H "Authorization: YOUR_API_KEY" \
-d '{"query": "query { getNetworks { id name } }"}'
TypeScript SDK
npm install @codex-data/sdk
import { Codex } from '@codex-data/sdk';
const codex = new Codex(process.env.CODEX_API_KEY);
const networks = await codex.queries.getNetworks({});
console.log(networks.getNetworks);
What You Can Query
| Capability | Details |
|---|---|
| Prices | Real-time and historical USD pricing for tokens and on-chain transactions |
| Charts | OHLCV bar data for accurate price charts |
| Token intel | Metadata, sub-500ms token search, filters by volume/liquidity/transaction count, trending algorithm, scam filtering |
| Wallets | Holders, balances, wallet analytics and PnL |
| Aggregates | Real-time volume, liquidity, unique wallets |
| Launchpads | 16 memecoin launchpads: Pump.fun, Clanker, Four.meme, Virtuals, Zora and more |
| Prediction markets | Polymarket and Kalshi — events, odds, traders, charts |
| Streaming | GraphQL subscriptions over WebSockets plus webhook alerts |
For AI Agents
Codex is unusually agent-friendly:
- MPP (Machine Payments Protocol) — keyless pay-per-request access over HTTP 402 at $0.001/request in USDC, no account needed (docs)
- Codex Skills —
npx skills add Codex-Data/skills -g --yeslets a coding agent query the API directly - Docs MCP server — plug the documentation into AI coding tools (docs)
Migration Guides
Official guides for switching from CoinGecko, Birdeye, and Dune Sim.
