OptimistFi Perps Data API: pricing, API and features
REST API with normalized funding, open interest, prices and leverage caps for perpetual futures across 44 venues, plus an MCP server.
Visit OptimistFi Perps Data API ↗ Plain link, no affiliate. Category: Market data APIs.
At a glance: OptimistFi Perps Data API (OptimistFi) — pricing: freemium; free tier: Yes; REST: Yes; MCP: Yes; open source: unknown.
Pricing
- Model
- freemium
- Free tier
- Yes — Live API is free with no key; page says data refreshes every 4 seconds. Hourly history of stock, commodity, FX and index perps needs an API key requested through a form.
- Plans
- unknown
- Notes
- No price is published for the historical dataset or higher live limits.
Verified on 2026-10-30 · Source: https://optimistfi.com/perps/data
Access & auth
- Authentication
- none
- KYC required
- unknown
- Notes
- Live API needs no account or key; the historical dataset uses a Bearer API key (60 requests per minute per key per the errors page). Keys are requested via a form reviewed by the team.
Verified on 2026-10-30 · Source: https://optimistfi.com/perps/data/authentication
Coverage
- Exchanges
- 44 perpetual-futures venues, including Hyperliquid, Jupiter Perps, Hibachi, Bluefin, OKX and Bitget
- Chains
- Venue-dependent (e.g. Solana, Arbitrum, Base, Sui); not listed as a single set
- Assets
- Crypto, stock, commodity, FX and index perpetuals; crypto is in the free live API, history covers non-crypto classes
Verified on 2026-10-30 · Source: https://optimistfi.com/perps/data/venues
Capabilities
- Capabilities
- price-data, historical-data, derivatives-data, funding-rates, open-interest, multi-exchange
Verified on 2026-10-30 · Source: https://optimistfi.com/perps/data
Interfaces
- REST API
- Yes
- WebSocket
- unknown
- SDKs
- none documented
- Official MCP server
- Yes
- Other
- OpenAPI 3.1 spec; JSON with open CORS, CSV for the historical dataset; read-only public MCP endpoint
Verified on 2026-10-30 · Source: https://optimistfi.com/mcp
Open source & self-hosting
- Open source
- unknown
- Licence
- unknown
- Self-host
- unknown
Verified on 2026-10-30 · Source: https://optimistfi.com/perps/data
FAQ
Does OptimistFi Perps Data API have a free tier?
Yes. Live API is free with no key; page says data refreshes every 4 seconds. Hourly history of stock, commodity, FX and index perps needs an API key requested through a form. (verified 2026-10-30)
Does OptimistFi Perps Data API offer an API?
REST: Yes. WebSocket: unknown. Official MCP server: Yes. Verified 2026-10-30.
Is OptimistFi Perps Data API open source or self-hostable?
Open source: unknown; licence: unknown; self-host: unknown. Verified 2026-10-30.
What are alternatives to OptimistFi Perps Data API?
Other market data apis in our directory: 0xArchive, AllTick Market Data API, altFINS, Amberdata Market Data API, Aperiodic.
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Aperiodic
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