IEX CLOUD: SHUT DOWN 31 AUG 2024
Your data vendor gave you
ninety days' notice. Once is enough.
IEX Cloud's August 2024 shutdown taught a generation of quant devs the sunset lesson: it was <2% of the parent's revenue and it still took your pipeline with it. EventTrader's API isn't a side business that can be trimmed — it is the platform's own surface, the same one our features run on.
Explore before you commit
Tuatara signal endpoints, market data and docs are open to read-only exploration before you fund anything.
Read the API docs →Documented, honest limits
100 requests/min authenticated, 20/min unauthenticated — published in the docs, not discovered in production.
Read the API docs →MCP + SDK included
An MCP server (pip install cymetica-eventtrader-mcp) and SDK ship alongside the REST docs.
Why people look beyond IEX Cloud
- Shut down 31 August 2024 with ~3 months' notice
- Successor transition (Blue Sky) arrived incomplete
- Migration meant endpoint mapping, auth and schema rewrites across every consumer
What you'd actually be trading here
EventTrader is a prediction exchange: perpetual prediction markets on crypto, stocks and macro moves with no expiry, live central-limit order books, event markets on real-world outcomes, and a marketplace of trading bots you can clone instead of coding. Position risk is capped at what you put in — no liquidation engine, no margin calls. Server-side alerts and free webhook auto-execution come with every account.
- Free means free. No card required. Nothing auto-converts into a paid plan.
- We are not a market-data vendor. The API serves EventTrader's markets and signals — generous and documented, but not a general data feed.
- No predictions sold. Markets are markets; we make no performance claims.
- Leave in one click. Withdraw on-chain any time, with a tx hash you can verify.
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