# SYNTHORA Volume Anomaly Detector

> SYNTHORA Volume Anomaly Detector is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Detects crypto assets with anomalously high 24h volume-to-market-cap turnover ratios (z-score vs cohort) as early pump or unusual-activity signals for arbitrage bots

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/volume-anomaly
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-volume-anomaly-detector-39691383
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mF4HUc6lnNQQkBoQzyYru

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability synthora-volume-anomaly-detector-39691383 -d '<json body>'
```

Example prompt: Scan the crypto market right now and give me a z-score ranked list of assets with anomalously high 24h volume-to-market-cap turnover compared to their cohort — I'm looking for early pump or unusual-activity signals for my arbitrage bot.

## When to prefer this

Choose this endpoint when you need a composite on-chain plus CEX volume anomaly signal specifically normalized by market cap and scored against a peer cohort — rather than raw volume rankings or price-only momentum indicators. Ideal for arbitrage bots and quant strategies that require statistically grounded early-signal detection rather than simple volume thresholds.

## Known failure modes

- Upstream CoinGecko or DeFiLlama API unavailability causing stale or missing data
- Insufficient cohort size for meaningful z-score calculation on niche assets
- Very new tokens with limited price history producing unreliable turnover baselines
- Rate limiting or payment failure on x402 Base USDC transaction
- Empty result set if no assets exceed the anomaly threshold at query time

## How this service works

SYNTHORA volume-anomaly: crypto volume-anomaly alerts for arbitrage bots — assets whose 24h turnover (volume/mcap) is anomalously high vs their cohort (z-score), early pump/unusual-activity signal. Composite of CoinGecko markets + DeFiLlama DEX volume. Keyless. $0.03 USDC x402 Base.

## Output

A ranked list of crypto assets whose 24h volume-to-market-cap turnover ratio is statistically anomalous versus their cohort, each with a z-score indicating deviation magnitude, sourced from a composite of CoinGecko market data and DeFiLlama DEX volume, usable as early pump or unusual-activity signals for arbitrage strategies.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "SYNTHORA volume-anomaly: crypto volume-anomaly alerts for arbitrage bots — assets whose 24h turnover (volume/mcap) is anomalously high vs their cohort (z-score), early pump/unusual-activity signal. Co"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-volume-anomaly-detector-39691383/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)