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SiftingIO provides real-time US stock, forex, crypto, commodities, and DEX data via REST and WebSocket APIs, historical OHLCV data via REST, consistent schemas, Python, TypeScript, and Go SDKs, and an MCP server for financial applications and AI tools, with a free account available..
- for
- Developers building trading platforms, fintech apps, analytics, research tools or AI agents that need market data.
- pricing
- free
Key features
- 74 Venues — Across 6 asset classes.
- Real-time — Delivery under 100 ms.
- Multi-source aggregation — Data from dozens of venues is de-duplicated and normalized before delivery.
- Multi-source — One consolidated, normalized feed.
- One Schema — Integrate once · add markets faster
Use cases
- Power live charts, order tickets and watchlists in a trading platform.
- Embed real-time crypto prices and FX rates in wallets or fintech apps.
- Feed screeners and backtesting engines for quantitative research.
- Drive pricing screens and conversion engines for forex brokers.
- Provide market data to AI agents that quote and reason over live markets.
SiftingIO pricing
- Free$0forever10,000 REST calls / month
- Builder$79/moBilled annually250,000 REST calls / month
- Pro$239/moBilled annually5,000,000 REST calls / month
- Ultra$639/moBilled annuallyUnlimited REST API calls
SiftingIO vs alternatives
 SiftingIO |  PostalDataPI |  Fine |  Spawned |  Unified MCP Server | |
|---|---|---|---|---|---|
| Best for | Unified multi-asset market data API | Geolocation API | AI agent development | Cloud app deployment | MCP integration platform |
| Pricing | Free | Subscription | Free | Free | Subscription |
| DevHunt upvotes | 0 | 76 | 75 | 68 | 29 |
| Launched | Sep 2026 | Apr 2026 | Jan 2023 | Jul 2026 | Jan 2026 |
- SiftingIO vs PostalDataPI: Focuses on global location data rather than financial market data.
- SiftingIO vs Fine: Provides AI-agent building tools, not market data feeds.
- SiftingIO vs Spawned: Offers generic cloud hosting, not specialized market data aggregation.
- SiftingIO vs Unified MCP Server: MCP server for tool integrations, not a market data provider.
SiftingIO FAQ
What markets does SiftingIO cover?+
Stocks (US equities, ETFs, ADRs), forex (majors, minors, exotics), crypto, commodities (metals, energy, ag), DEX & DeFi venues, and on-chain fundamentals.
How do I authenticate?+
A single bearer token (API key) is sent on every REST request and WebSocket connection.
Is there a free tier?+
Yes – each market offers a free tier with 10 k REST calls/month, 60 req/min, 1 WS connection, 5 symbol subscriptions and 1 month of history, no credit card required.
Can I mix tiers across markets?+
Yes – you can run different markets at different tiers on the same account; bundle discounts apply automatically when two or more markets share a Pro or Ultra tier.
What SLA does SiftingIO provide?+
Paid plans include a 99.5% SLA (Builder), 99.9% SLA (Pro/Ultra) and 99.95% SLA with credits on Enterprise.
Summarized by DevHunt from sifting.io · Sep 28, 2026. Details may change; check the official site.
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