YOUR PRICE DATA, OVER TIME

Historical price data

Seven assets. One connection. A growing record of every observed update.

60s TWAP WINDOW

Tracked assets

Exact prices preserved · USD

BTC / USD

Recent observed prices

Waiting for records…

History reflects what was received. Source timestamp gaps are flagged; missing prices are never filled. A 60-second TWAP is the averaging window, while live updates usually arrive every second.

EXPLORE YOUR HISTORY

Price records

Browse source timestamps, exact values, and local receipt times.

Observations

No query yet

STORAGE LIBRARY

Archives & storage

Gzipped JSON arrays, organized by asset and UTC source hour.

Temporary observations append to JSONL journals and are indexed in SQLite. Completed hours and graceful shutdowns publish JSON arrays in .json.gz files. Temporary journals are removed once their records are archived.

Published archives

COLLECTION ACTIVITY

Connection & quality events

Starts, reconnects, validation problems, and observed gaps.

APP DETAILS

Settings & API

This app owns its data directory and runs independently.

Read API

Times accept Unix seconds or ISO timestamps with a timezone. From is inclusive; to is exclusive.

Management commands

Run in the polym_twap_history folder.

npm run datacrawler
npm run dashboard
npm run status
npm run check
npm run doctor
npm run export -- --dataset btc-usd --from 2026-09-17T00:00:00Z --to 2026-09-18T00:00:00Z

Checks verify archive checksums, records, and index counts. They do not recover upstream history.

Historical price data

Tracked assets

BTC / USD

Price records

Observations

Archives & storage

Published archives

Connection & quality events

Settings & API

Read API

Management commands

Effective configuration