# Aster Futures API (market data): pricing, API and features

Category: [Market data APIs](https://tokvane.app/categories/market-data-apis) · Vendor: Aster · Website: https://docs.asterdex.com/for-developers/aster-api/api-documentation · Status: active

Aster DEX futures API docs: public REST and WebSocket market data for USDT perpetuals (klines, depth, trades, mark price/funding, liquidation stream) plus authenticated trading endpoints.

> Aster Futures API (market data) (Aster) — pricing: free; free tier: Yes; REST: Yes; MCP: unknown; open source: No.

## Pricing

- **Model:** free
- **Free tier:** Yes — Public market-data endpoints need no API key.
- **Plans:** unknown
- **Notes:** Docs mark endpoints with security type NONE as "accessed freely"; market-data endpoints take no API key and are limited by IP request weight. No fee is listed in the docs.

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## Access & auth

- **Authentication:** none
- **KYC required:** unknown
- **Notes:** Public market-data endpoints are marked as needing no key; historicalTrades needs an API key header; trading and account endpoints are signed. Limits are per IP (2400 request weight/min).

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## Coverage

- **Exchanges:** Aster (single venue)
- **Chains:** unknown
- **Assets:** USDT-margined perpetual futures (/fapi); spot not covered by this doc

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## Capabilities

- **Capabilities:** price-data, historical-data, orderbook-data, trades-data, derivatives-data, funding-rates, liquidations

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## Interfaces

- **REST API:** Yes
- **WebSocket:** Yes
- **SDKs:** none documented
- **Official MCP server:** unknown
- **Other:** WebSocket streams incl. mark price, depth, klines and liquidation orders (forceOrder); base URLs fapi.asterdex.com and fstream.asterdex.com

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## Open source & self-hosting

- **Open source:** No
- **Licence:** proprietary
- **Self-host:** No

_Verified on 2026-10-30. Source: https://docs.asterdex.com/for-developers/aster-api/api-documentation_

## FAQ

**Does Aster Futures API (market data) have a free tier?**
Yes. Public market-data endpoints need no API key. (verified 2026-10-30)

**Does Aster Futures API (market data) offer an API?**
REST: Yes. WebSocket: Yes. Official MCP server: unknown. Verified 2026-10-30.

**Is Aster Futures API (market data) open source or self-hostable?**
Open source: No; licence: proprietary; self-host: No. Verified 2026-10-30.

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

Alternatives: https://tokvane.app/alternatives/aster-market-data-api

Information only, not financial or investment advice.