# Seerium Polymarket Advanced Screener

> Seerium Polymarket Advanced Screener is a paid API for AI agents from api.seerium.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Ranks and filters Polymarket prediction-market setups by setup score, confidence, liquidity, spread, volume, momentum, and mispricing to surface the best trading opportunities.

## Facts

- Endpoint: GET https://api.seerium.xyz/v1/pro/screener
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-seerium-xyz-9e0950a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ih8m3NF49EmB-GD5HeFCV

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 api-seerium-xyz-9e0950a2
```

Example prompt: Show me the top 10 Polymarket setups right now using the top_setups preset, sorted by setupScore descending, with at least $500 in liquidity and a minimum confidence of 0.6 — keep the spread under 0.1.

## When to prefer this

Use this endpoint when you need a ranked, filtered screener view of Polymarket setups with composite scoring (setup score, momentum, mispricing) rather than raw market data. Prefer this over the basic Polymarket scan when you want agent-ready ranked opportunities with Seerium's proprietary signals applied. Use the preset parameter for quick top_movers or top_setups views, or build a custom filter with minLiquidity, minConfidence, and maxSpread.

## Known failure modes

- Invalid preset value returns 400 error
- minLiquidity or minConfidence out of valid range returns 400
- No markets match filters returns empty result set
- Payment not included or insufficient returns 402
- Source filter for unsupported market returns empty or error
- sortBy field name not recognized returns 400

## How this service works

Crypto and prediction market intelligence through x402.

## Output

Returns a ranked list of Polymarket prediction-market rows, each scored by Seerium's proprietary setup score, confidence, liquidity, spread, volume, momentum, and mispricing metrics, allowing agents to identify the highest-quality trading opportunities at a glance.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "limit": 5,
   "preset": "top_setups",
   "sortBy": "setupScore",
   "source": "polymarket",
   "sortDir": "desc"
  }
 }
}
```

## 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": {
      "limit": {
       "type": "number",
       "minimum": 1,
       "description": "Optional maximum advanced screener rows to return. Defaults to 200."
      },
      "preset": {
       "enum": [
        "top_movers",
        "top_setups"
       ],
       "type": "string",
       "description": "Optional advanced prediction-market screener preset for top movers or top setups."
      },
      "sortBy": {
       "type": "string",
       "description": "Optional metric to sort by, such as setupScore, liquidity, volume, momentumMedium, or mispricingScore. Defaults to setupScore."
      },
      "source": {
       "type": "string",
       "description": "Optional market source filter, for example polymarket."
      },
      "sortDir": {
       "enum": [
        "asc",
        "desc"
       ],
       "type": "string",
       "description": "Optional sort direction. Defaults to desc."
      },
      "maxSpread": {
       "type": "number",
       "description": "Optional maximum order book spread."
      },
      "minLiquidity": {
       "type": "number",
       "description": "Optional minimum prediction-market liquidity in USD."
      },
      "minConfidence": {
       "type": "number",
       "description": "Optional minimum Seerium agent confidence score."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "rows": [
    {
     "source": "polymarket",
     "spread": 0.01,
     "volume": 5768589.43,
     "marketId": "1919425",
     "liquidity": 1201662.28,
     "updatedAt": "2026-03-25T11:59:30.000Z",
     "marketName": "US x Iran permanent peace deal by May 31, 2026?",
     "setupScore": 15,
     "volatility": 0,
     "momentumShort": -0.005,
     "slippageProxy": 0.00912,
     "momentumMedium": 0,
     "agentConfidence": 0,
     "mispricingScore": 0.02
    }
   ]
  },
  "meta": {
   "requestId": "req_example_123",
   "updatedAt": "2026-03-25T11:59:30.000Z",
   "freshnessMs": 30000,
   "generatedAt": "2026-03-25T12:00:00.000Z"
  },
  "product": {
   "id": "pro-screener",
   "name": "Polymarket Pro Screener API",
   "path": "/v1/pro/screener",
   "price": "$0.1000",
   "method": "GET",
   "accepts": [
    {
     "payTo": "0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5",
     "price": "$0.1000",
     "scheme": "exact",
     "network": "eip155:8453"
    },
    {
     "payTo": "2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ",
     "price": "$0.1000",
     "scheme": "exact",
     "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    }
   ],
   "networks": [
    "eip155:8453",
    "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
   ]
  },
  "service": "seerium-x402-api"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-seerium-xyz-9e0950a2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.seerium.xyz](https://www.zero.xyz/host/api.seerium.xyz/llms.txt)