# Zatena Smart Money Flow Signals

> Zatena Smart Money Flow Signals is a paid API for AI agents from api.zatena.com, paid per call via x402, $0.01/call, status down (last checked 2026-10-30).

Returns recent smart-money buying and selling flow aggregated per prediction market, including net position size per market condition.

## Facts

- Endpoint: GET https://api.zatena.com/signals?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zatena-smart-money-flow-signals-1b309445
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_om40CorzEW37UaiYmPMru

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 zatena-smart-money-flow-signals-1b309445
```

Example prompt: What's the current smart money buying and selling flow across prediction markets — show me which markets have the biggest net positions from top wallets right now?

## When to prefer this

Use this endpoint when you need a real-time snapshot of aggregated smart money net flow across prediction markets, particularly Polymarket. Prefer this over raw on-chain data when you need pre-aggregated, per-market signals without parsing wallet-level transactions yourself. Complements the sibling endpoints for top smart-money wallets and the Polymarket catalog.

## Known failure modes

- Payment not included or invalid x402 payment header — returns 402 Payment Required
- Rate limit exceeded — returns 429 Too Many Requests
- Service temporarily unavailable — returns 503
- No signals available if markets are inactive or data feed is stale
- Malformed response if condition IDs are not yet resolved on-chain

## How this service works

Recent smart-money buying/selling flow, per market

## Output

An array of market signal objects, each containing the market title, token ID, condition ID (as a 0x hash), and the smart money net size (positive for net buying, negative for net selling) for that prediction market.

## Response schema (JSON Schema)

```json
{
 "signals": [
  {
   "title": "string",
   "tokenId": "string",
   "conditionId": "0x..",
   "smartMoneyNetSize": 0
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zatena-smart-money-flow-signals-1b309445/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.zatena.com](https://www.zero.xyz/host/api.zatena.com/llms.txt)