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Changelog

All notable changes to the Kwery API. Dates reflect production deployment. Breaking changes are called out explicitly.

The source of truth for paths, parameters, and schemas is openapi.json.

2026-03-05 — Monthly credit budgets

  • Free (Basic): 1,000,000 credits/month (was 150,000).
  • Pro: 10,000,000 credits/month (was 1,500,000).
  • Business: 50,000,000 credits/month (was 10,000,000).

See Plans & Pricing for the full comparison table.

2026-03-20 — Docs aligned with OpenAPI v1.6.x

Site documentation (kwery.xyz)

  • Rewrote Snapshots for unified GET /v1/snapshots and GET /v1/snapshots/at (query source, symbol, time; no path-style {id} in the public spec).
  • Order book: documented /v1/polymarket/orderbook, /v1/kalshi/orderbook, and unified snapshots; removed references to a standalone GET /v1/orderbook.
  • Status: GET /v1/status now matches OpenAPI — optional limit only; response status + ingestion[].
  • Candles: interval required; source uses binance (spot) per OpenAPI; Polymarket token_id / market_id; default limit 500, max 10000.
  • Markets: list filter query parameter active (not is_active).
  • New doc pages: Flow, Ticker, Health, Platform routes.
  • Oracle / derived: Oracle points to source=chainlink candles; Derived notes /v1/derived is not in the published OpenAPI.

2026-03-15 — v1.6.0

Reorganization

  • API documentation reorganized into 6 endpoint groups: Price data, Microstructure, Derivatives, Prediction markets, Discovery, and Account & operations
  • /v1/oracle and /v1/derived are now grouped under Price data alongside /v1/candles
  • /v1/orderbook and /v1/trades are now grouped under Microstructure
  • Prediction market endpoints (/v1/markets, /v1/snapshots) are now grouped under Prediction markets

New features

  • /v1/symbols — New discovery endpoint returning all available symbols with per-symbol source, interval, and earliest-data metadata. 0 credits.
  • Kalshi market discovery — /v1/markets now accepts ?source=kalshi to list Kalshi event contracts alongside Polymarket markets. Omit source to query both platforms.
  • Unified cursor pagination — /v1/markets and snapshot list endpoints support cursor-based pagination (after parameter) consistent with other endpoints. The offset parameter is deprecated where noted in OpenAPI.

Removed

  • /v1/markets/slug/{slug} — Removed. Use /v1/markets/{identifier} instead, which accepts market_id, condition_id, or slug.

2026-03-01 — v1.5.0

  • Added /v1/derived endpoint with cross-source basis and implied volatility metrics
  • Added min_usd filter for /v1/liquidations (Business+)
  • Added X-Rows-Capped response header to indicate when results are truncated by tier limits

2026-02-15 — v1.4.0

  • Added Kalshi order book depth data (Pro+)
  • Added 500ms snapshot intervals for supported exchanges (Business+)

2026-02-01 — v1.3.0

  • Added Hyperliquid perpetual data (OHLCV, funding, open interest)
  • Added /v1/oracle endpoint with Chainlink price feed data

2026-01-15 — v1.2.0

  • Added Binance 1-second ticker data (Pro+)
  • Added /v1/trades endpoint for raw trade data (Pro+)

2026-01-01 — v1.1.0

  • Added /v1/funding and /v1/open-interest endpoints
  • Added /v1/liquidations endpoint

2025-12-01 — v1.0.0

  • Initial API release
  • Endpoints: /v1/candles, /v1/snapshots, /v1/markets, /v1/sources, /v1/limits
  • Authentication via ?api-key=YOUR_KEY query parameter
  • Free, Pro, and Business tiers