Daily EVK supplied net flows and event-category USD totals

Returns retained daily EVK deposit, withdrawal, borrow, repay and liquidation USD totals. Net supplied flow is depositsUsd minus withdrawalsUsd; borrows, repays and liquidations are reported separately and do not enter the net formula. Each category is independently nullable; missing chain rows or unavailable category valuation are not reported as zero. Net supplied flow remains available when deposits and withdrawals are available even if another category is not. Values use eligible positive historical asset prices at or before each event, within 15 minutes and bounded by the event block. Rollups and backfills cover retained raw EVK events; coverage describes the requested range and does not prove complete historical source retention. Protocol, chain and vault scopes use the current visible labelled EVK vault membership; Earn and unlabelled vaults are excluded. Historical label membership is not reconstructed. Omitting chainId selects the served chains that run stats. A vault filter requires exactly one selected chain. Only 1d resolution is supported, ranges are inclusive, the default window is 30 days, and the maximum is 732 buckets. Only closed UTC days are published; the current open day is omitted. With groupBy=chain, data.chains adds a series and independent coverage for every selected chain, including empty series. Missing days remain absent; no zero-valued days are synthesized. Incomplete range coverage uses Cache-Control no-store. Complete HTTP responses may remain cached for up to 300 seconds after source invalidation; fresh database reads exclude pending buckets, including after the cached response expires. Unknown or repeated query parameters, duplicate chain IDs and invalid ranges return 400. An unsupported chainId returns 404 with error code CHAIN_NOT_SUPPORTED. Needs the stats chain capability. A chainId naming a chain without it answers 404 CHAIN_CAPABILITY_DISABLED; without chainId, served chains without it are left out and listed in meta.excludedChains.