Live chart-review demo

Chart Review Lab

Inspect Alpaca-backed candles, deterministic chart annotations, source metadata, and exportable evidence artifacts in a public review workspace.

Open annotation demo Review evidence Datafeed status

Alpaca SIP datafeed Inspectable JSON Visible attribution Chart review only

Working demo

A public evidence bench for chart review

The demo renders market data, draws deterministic review overlays, and exposes the values behind each annotation. It is built for inspection: labels stay visible, metadata is readable, and artifacts can be copied or exported.

Datafeed Alpaca UDF endpoint

Review layer Visible annotations

Evidence JSON and source metadata

Boundary No advisory workflow

Workflow

Chart data, annotations, and source evidence in one path

Candles

Browser requests go through Chart Review Lab's UDF endpoints, with Alpaca Market Data keys kept server-side.

Annotations

The review layer draws explicit levels, ranges, Fib-style references, projection guides, and labels.

Inspector

Each selected annotation shows values, basis, endpoint, feed, latest bar, and generated JSON.

Artifacts

Export chart-review evidence as screenshots and JSON summaries so annotations can be audited later.

Live datafeed base

The public demo reads from https://chartreviewlab.company/api/datafeed and keeps provider caveats visible wherever chart data appears.

Datafeed status Annotation prototype TradingView widget view Evidence report UDF config Symbol search Symbol metadata

Safety boundary

Chart review only

No broker connection or order routing

No automated trading or portfolio management

No trade recommendations or financial advice

No ranking, scoring, alerting, or candidate generation

Maintainer

Dylan McCavitt

Independent developer building local-first chart-review tooling and evidence artifacts for market visualization workflows.

Open the annotation demo Review the evidence report Check datafeed status GitHub: DylanMcCavitt Drawing API documentation