Reference
Rate limits
120 requests per minute per key, counted over a fixed 60-second window and shared between the REST API and the MCP server.
Fan-out is charged per variant
sweep and compare run one scoring query per value or variant, so they are charged accordingly: a sweep across five values costs five requests, a comparison of three rules costs three. Everything else costs one.
This is still far cheaper than the alternative. One sweep across 20 values costs 20 requests but a single round trip; 20 separate backtest calls cost the same quota plus 19 round trips and 19 reasoning turns for an agent.
Request caps
sweep: 2 to 20 values per callcompare: 2 to 10 variants per call/v1/eventsandquery_whale_events: up to 200 rows per callsinceDays: 1 to 365 everywhere it appears- Active API keys: 10 per account
Handling 429
A limited request returns 429 with a retry-after header holding the seconds until the window resets. Wait that long and retry; there is no penalty beyond the wait. Agents driving the MCP server get the same header at the HTTP layer.
If the limit is genuinely in your way, write in to info@rivo.markets and tell us what you are building.