# at_support

Price is testing a detected support level.

A boolean signal (flag) column on the Tickerbot computed state table (20,822+ ticker rows) — computed by the platform, queryable by bare name across the API. Values are NULL on rows the signal doesn't apply to.

Definition: `Price within 1.5 × ATR(20) of an active detected support level — a cluster of two or more historical swing lows within an ATR-scaled band, still unbroken.`

- Group: Price
- Category: Support & resistance
- Type: state
- Update cadence: 1 min · mkt hrs
- Intervals: 1m/1h/1d
- Universe: all tickers
- History: none
- Firing: continuous
- Typical role: compound filter · chart annotation · entry-timing ingredient

## Query it

Every applicable form factor, grouped by endpoint family. Response payloads are real captures, sampled 2026-08-18 and trimmed; your run's values and dates will differ.

### Use signals — `/v2/signals/{signal}`

One signal across the market: who matches now, who matched then, and a push when someone starts. (https://tickerbot.io/docs/endpoints/signals.md)

#### Live — every ticker where it fires now

```bash
curl "https://api.tickerbot.io/v2/signals/at_support" \
  -H "Authorization: Bearer YOUR_KEY"
```

#### As-of — the same read at a past date

```bash
curl "https://api.tickerbot.io/v2/signals/at_support?asof=2026-05-22" \
  -H "Authorization: Bearer YOUR_KEY"
```

#### Subscribe — webhook when a ticker starts matching

```bash
curl -X POST "https://api.tickerbot.io/v2/signals/at_support/subscribe" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"target_url": "https://example.com/hooks/tickerbot"}'
```

Returns 201 with the created webhook — the same shape as GET /v2/webhooks/{id}, plus a one-time signing_secret for HMAC verification.

### Use scan — `/v2/scan`

The whole market through a WHERE clause — this signal composed freely with any other column. (https://tickerbot.io/docs/endpoints/scan.md)

#### Live — the whole market, filtered on this signal

```bash
curl -X POST "https://api.tickerbot.io/v2/scan" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{ "q": "at_support" }'
```

#### As-of — the same scan at a past date

```bash
curl -X POST "https://api.tickerbot.io/v2/scan" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{ "q": "at_support", "asof": "2026-05-22" }'
```

#### Subscribe — webhook on a market-wide condition

```bash
curl -X POST "https://api.tickerbot.io/v2/scan/subscribe" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"q": "at_support", "target_url": "https://example.com/hooks/tickerbot"}'
```

Returns 201 with the created webhook object; deliveries carry the tickers matching the condition at each evaluation.

### Use series — `/v2/series`

Its history over time, on one aligned grid. (https://tickerbot.io/docs/endpoints/series.md)

#### History — the column on an aligned time grid

```bash
curl "https://api.tickerbot.io/v2/series?tickers=AAPL,MSFT&columns=close,at_support" \
  -H "Authorization: Bearer YOUR_KEY"
```

### Use events — `/v2/events`

The flag as a timeline: each edge as a point event, and the spans it stayed true. (https://tickerbot.io/docs/endpoints/events.md)

#### Firings — every enter edge as a point event

```bash
curl -G "https://api.tickerbot.io/v2/events" \
  -d "kind=signal" -d "signal=at_support" -d "transition=enter" -d "from=2026-01-12" \
  -H "Authorization: Bearer YOUR_KEY"
```

#### Spans — when it was true for one ticker (AAPL)

```bash
curl "https://api.tickerbot.io/v2/signals/at_support/AAPL/events" \
  -H "Authorization: Bearer YOUR_KEY"
```

## Related signals (Support & resistance)

- [at_resistance](https://tickerbot.io/docs/signals/at_resistance.md)

---

Full catalog: https://tickerbot.io/docs/signals.md · Schema: https://tickerbot.io/docs/schema.md · Interactive: https://tickerbot.io/explore?signal=at_support · HTML: https://tickerbot.io/docs/signals/at_support/