Every vendor's free tier
is a different kind of almost.
EventTrader is a free account with server-side alerts, webhook execution and on-chain withdrawals, for people who also use market-data APIs.
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.
The honest 2026 comparison
- EODHD: 20 calls/day free, and intraday/news cost 5–10 calls each
- Twelve Data: REST-only (no WebSocket); 200–500ms responses
Finnhub and Twelve Data are genuinely good free tiers — use them for bulk data. Our API's job is different: signals and markets you can trade.
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.
This page is unlisted: we could not confirm its facts about market-data APIs by an automated check (generic page about market-data APIs, no single product to check), so it is kept out of our directories and search listings. Verify anything here against market-data APIs directly.
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