Codex
Een GraphQL-API voor realtime gegevens over tokens en voorspellingsmarkten uit meer dan 80 netwerken, met meer dan 80 miljoen tokens en meer dan 700 miljoen wallets.
Overzicht
Codex is a GraphQL API for enriched blockchain and prediction market data, built and maintained by Defined.fi. For tokens, it delivers real-time pricing, charts, holders, balances, and aggregated analytics covering more than 80 million tokens and 700 million wallets across over 80 networks, spanning EVM chains and Solana. Data arrives with sub-second freshness and includes historical USD pricing, with WebSocket and webhook subscriptions for live updates.
Codex also exposes prediction market data across Polymarket and Kalshi through a single schema. This covers events, markets, traders, holdings, live order books, and trade feeds, along with time-windowed stats and ranking signals such as volume, liquidity, open interest, trade count, and unique traders at windows from 5 minutes through 1 week, metrics the venue APIs do not expose natively.
Most teams query Codex directly over GraphQL, with an optional TypeScript SDK, and there is an MCP server for reading the documentation. Codex offers a free tier of 10,000 requests per month, usage-based Growth pricing, and Enterprise plans. Developers use it to build trading platforms, wallets, analytics tools, and prediction market apps. Getting started takes an API key from codex.io and the schema reference at docs.codex.io.
Het probleem
Teams building trading apps, wallets, and analytics tools have to assemble real-time token data from many per-chain sources, then bolt on separate, inconsistent feeds for prediction markets. Native venue APIs lag, lack historical pricing, and do not expose aggregated ranking signals, so developers spend more time on data plumbing than on their product.
De oplossing
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Bronnen
Codex lives at codex.io with full schema and guides at docs.codex.io. The API is GraphQL with an optional TypeScript SDK and an MCP server for reading the docs. Support and updates run through X (@trycodex), Discord (discord.com/invite/mFpUhT3vAq), and LinkedIn, and source and examples are on GitHub at github.com/Codex-Data.
