# Codex API: pricing, API and features

Category: [Market data APIs](https://tokvane.app/categories/market-data-apis) · Vendor: Codex Data Inc. · Website: https://www.codex.io · Status: active

Unified GraphQL API for on-chain token prices, OHLCV bars, trades, pools, holders, wallets, launchpads and prediction markets across 80+ networks, with WebSocket subscriptions and webhooks.

> Codex API (Codex Data Inc.) — pricing: freemium; free tier: Yes; REST: No; MCP: Yes; open source: unknown.

## Pricing

- **Model:** freemium
- **Free tier:** Yes — 'Almost free' plan: 10,000 requests/month, 5 requests/second.
- **Plans:** Almost free: month (10,000 requests/month, 5 req/s); Growth: month (From 1M requests/month, 300 req/s; tiers on pricing page (not machine-readable)); Enterprise: custom (Custom)
- **Notes:** Usage counted per query response; subscription messages count per message delivered. Card payments via Stripe; crypto on request.

_Verified on 2026-10-30. Source: https://docs.codex.io/concepts/rate-limits.md_

## Access & auth

- **Authentication:** api-key
- **KYC required:** unknown
- **Notes:** API key from dashboard.codex.io sent in Authorization header.

_Verified on 2026-10-30. Source: https://docs.codex.io/llms.txt_

## Coverage

- **Exchanges:** Indexes DEX exchanges (20,000+ exchange entries per FAQ)
- **Chains:** 80+ networks (EVM and non-EVM incl. Solana)
- **Assets:** 75M+ tokens

_Verified on 2026-10-30. Source: https://docs.codex.io/extra/faq.md_

## Capabilities

- **Capabilities:** price-data, historical-data, dex-data, trades-data, onchain-metrics, screening, alerts

_Verified on 2026-10-30. Source: https://docs.codex.io/llms.txt_

## Interfaces

- **REST API:** No
- **WebSocket:** Yes
- **SDKs:** typescript
- **Official MCP server:** Yes
- **Other:** GraphQL over HTTP POST and graphql-ws WebSocket subscriptions; webhooks; docs MCP server for authoring queries (not a data MCP)

_Verified on 2026-10-30. Source: https://docs.codex.io/llms.txt_

## Open source & self-hosting

- **Open source:** unknown
- **Licence:** proprietary
- **Self-host:** No
- **Repository:** https://github.com/codex-data/sdk

_Verified on 2026-10-30. Source: https://docs.codex.io/sdk.md_

## FAQ

**Does Codex API have a free tier?**
Yes. 'Almost free' plan: 10,000 requests/month, 5 requests/second. (verified 2026-10-30)

**Does Codex API offer an API?**
REST: No. WebSocket: Yes. Official MCP server: Yes. Verified 2026-10-30.

**Is Codex API open source or self-hostable?**
Open source: unknown; licence: proprietary; self-host: No. Verified 2026-10-30.

**What are alternatives to Codex API?**
Other market data apis in our directory: 0xArchive, AllTick Market Data API, Amberdata Market Data API, Aster Futures API (market data), binance (Siebly.io SDK).

Alternatives: https://tokvane.app/alternatives/codex-api

Information only, not financial or investment advice.