# Polymarket Whale Daily Digest

> Polymarket Whale Daily Digest is a paid API for AI agents from x402-api-production-266e.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns an aggregated 24-hour whale activity digest for Polymarket, including top markets by whale volume, largest single bets, and summary totals — with a 15-minute data delay.

## Facts

- Endpoint: GET https://x402-api-production-266e.up.railway.app/v1/signals/daily
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-whale-daily-digest-aa7b50d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t2Ll3aygzBmks2MGuwJAS

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 polymarket-whale-daily-digest-aa7b50d0
```

Example prompt: Give me today's whale digest for Polymarket — I want to see which markets the big money is piling into, the net YES/NO flow, and the largest single bets placed in the last 24 hours.

## When to prefer this

Use this endpoint when you need a single-call full-day picture of Polymarket whale activity across all markets. Prefer this over per-market or per-wallet endpoints when you want a broad daily briefing rather than drilling into a specific market or wallet. Ideal for daily summaries, newsletters, or dashboards monitoring smart-money sentiment across the entire Polymarket ecosystem.

## Known failure modes

- Payment not included or invalid USDC payment header returns 402 Payment Required
- Data may be up to 15 minutes stale; callers expecting real-time data may receive slightly delayed results
- If no whale trades (>=\ $10,000) occurred in the 24h window, some list fields may be empty or minimal
- Service unavailability on Railway infrastructure returns 5xx errors

## How this service works

Returns daily signals for tracking market opportunities and trends.

## Output

Returns a structured daily snapshot including: top-10 Polymarket markets ranked by whale volume with YES and NO net flow per market, top-10 largest individual bets placed by whales, and aggregate totals for whale trade count, total whale volume, and number of unique whale wallets active — all covering the past 24 hours with a 15-minute delay.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-whale-daily-digest-aa7b50d0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-api-production-266e.up.railway.app](https://www.zero.xyz/host/x402-api-production-266e.up.railway.app/llms.txt)