Lumen Data API

Market data that tells you what it doesn't know.

Cross-venue funding, positioning, liquidations, and options signals — the same feed that powers Tessen's own grading engine. Every signal ships labeled validated or candidate, with its own live self-graded hit-rate scorecard. Nothing else in this category publishes its own track record.

What's in the feed

Crowd divergence

Retail vs. top-trader long/short positioning skew

Funding (mean + dispersion)

Cross-venue funding rate level and cross-venue disagreement

Open interest, 1h change

How fast leverage is building, per asset

Order-book imbalance & spread

Binance-scoped microstructure

Cumulative volume delta

Spot taker buy/sell pressure

Liquidations (1h)

Bybit liquidation cluster intensity, 9 assets

Options put/call OI ratio + DVOL

BTC/ETH options positioning and implied vol

curl https://api.tessen.ai/v1/api/lumen/snapshot \
  -H "X-API-Key: tsn_live_..."

Full response shape and field-by-field docs: API reference.

Pricing

Data Basic
$19
10,000 calls / 30 days

One-time payment, 30-day rolling window — no subscription, no auto-renew.

Data Pro
$49
50,000 calls / 30 days

Same terms, higher ceiling for production polling.

The Lumen add-on is priced and metered independently from the grading API — polling market data never competes with your grading quota, and vice versa. Already have a developer key on the free or grading tier? Add Lumen Data from the Studio without creating a new key.

Generate a key from the Studio, add the Lumen Data plan, start polling.