中文版 (Chinese)

Sign up free

Drop in an email and the key comes back on the spot — every single-indicator endpoint opens up for any ticker: financial ratios, valuation bands, revenue momentum, dividend history, insider holdings, convertible bond quotes, adjusted prices. 2,000 calls a day.

Where the free tier ends and the paid plans begin:

  • Free member: single-indicator queries, every ticker open.
  • Indie / Quant: the composite views — multi-stock comparison, the full per-stock dashboard, market-wide scans and screeners, as-of snapshot replay, and bulk backtest data packs. See plans

What the email actually buys you

It is a concrete trade: the daily allowance goes from 500 to 2,000 calls, and the per-minute ceiling from 90 to 150. Ticker coverage is wide open either way — signing up buys volume, not access.

No keyFree memberPaid plans
Calls per day5002,00010,000 – 100,000
Calls per minute90150300 – 900
Tickers you may queryAnyAnyAny
Single-indicator endpointsYesYesYes
Composite views (compare / dashboard / screener)NoNoYes
As-of snapshot replayNoNoYes
Bulk backtest data packsNoNoYes
Payment details requiredNoNoYes

What the key reaches

6 data sources are wired up, 3 of them cleared for external serving. The valuation panel covers 2,227 tickers across 541 snapshot dates (2024-07-01 to 2026-09-17). Every number is the version that was available on that day — later revisions are never written back.

From sign-up to your first row of data

1

Leave an email

No password, no confirmation link in the way. The key appears on screen the moment you submit, and a copy goes to your inbox as a backup.

2

Put the key in a header

Every request carries an x-api-key header. No OAuth, no token refresh, and the key does not expire.

3

Make the first call

Valuation for a single ticker is the quickest start — one line of curl returns JSON, with the snapshot date and licence fields already in the response.

4

Read the snapshot date

Every row is stamped with the day it was frozen. Align your backtest on that date and look-ahead bias cannot leak in from the data side.

What the free tier will not do

Better to draw the line here than to let you find it after handing over an email. These four things a free key genuinely cannot do — if one of them is what you came for, this page is not worth your address.

Replay an arbitrary as-of date

Free and registered keys read the most recent snapshot. Asking for the numbers the market saw on a specific day two years ago is a paid feature — the snapshot series is the asset this site is built on.

Reach the composite views

Multi-stock comparison, the per-stock dashboard and the market-wide screener are several sources joined server-side. A free key can query every single indicator that goes into them; the assembled view is paid.

Download bulk backtest packs

The free tier moves one ticker and one indicator at a time. Packaging whole time series for download sits with the paid plans.

Come with an uptime promise

There is no service-level commitment on the free tier. It runs on the same infrastructure as the paid one, but you should read this sentence before putting it behind a production schedule.

Frequently asked questions

Is the free tier really free, and does it expire?

Yes, and no. There is no trial clock and no payment details are asked for. A registered key gets 2,000 calls a day, renewed every day, for as long as you use it.

What can I query without signing up at all?

Every single-indicator endpoint, at 500 calls a day against your IP address. Signing up is about raising that ceiling, not about unlocking tickers — ticker coverage is open either way.

Which tickers does the key cover?

Any listed ticker. The valuation panel alone spans 2,227 names; other panels vary by source and the coverage endpoint reports the exact numbers live.

How far back does the history go?

The snapshot series runs from 2024-07-01 to 2026-09-17, which is 541 frozen trading days. Free and registered keys read the latest snapshot; replaying an arbitrary as-of date is a paid feature.

Will you email me anything besides the key?

No marketing mail. The address is used to send your key and, if something breaks in a way that affects your calls, to tell you about it.

What happens if I lose the key?

Write to [email protected] from the address you registered with. Keys are not shown again in the browser after the first time.

Can I use the data in something I publish?

3 of the 6 sources are cleared for external serving under the Open Government Data License, with attribution. The licensing page carries the exact strings to copy and the boundaries for derived work.

Anything this page did not answer, write to [email protected].