Api Endpoint

api.seerium.xyz

Prediction market arbitrage API for Polymarket, Kalshi, and Gemini. Finds full-cover YES plus NO combinations with positive net edge.

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Offering

Provider
api.seerium.xyz
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Prediction Markets
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.seerium.xyz/v1/prediction/arb/full-cover
MIME type
application/json
First seen
2026-10-16T01:51:40.954Z
Last seen
Tags
None supplied

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.1 USDC
Atomic price: 100000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.1 USDC
Atomic price: 100000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "payTo": "0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "100000",
    "payTo": "2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ"
  }
]

Observed health

Status
Healthy
Latest latency
64 ms
Average latency
227 ms
HTTP status
402
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "limit": {
          "type": "number",
          "minimum": 1,
          "maximum": 20,
          "description": "Optional maximum arb rows to return. Defaults to 20 and is hard-capped at 20."
        },
        "minEdge": {
          "type": "number",
          "minimum": 0,
          "description": "Optional minimum net arb edge as a decimal or percentage-style value."
        },
        "sources": {
          "type": "string",
          "description": "Optional comma-separated venue filter: polymarket, kalshi, gemini."
        },
        "includeIndicative": {
          "type": "boolean",
          "description": "Optional flag for indicative price-only rows. Defaults to true."
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "properties": {
            "includeIndicative": {
              "description": "Optional flag for indicative price-only rows. Defaults to true.",
              "type": "boolean"
            },
            "limit": {
              "description": "Optional maximum arb rows to return. Defaults to 20 and is hard-capped at 20.",
              "maximum": 20,
              "minimum": 1,
              "type": "number"
            },
            "minEdge": {
              "description": "Optional minimum net arb edge as a decimal or percentage-style value.",
              "minimum": 0,
              "type": "number"
            },
            "sources": {
              "description": "Optional comma-separated venue filter: polymarket, kalshi, gemini.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}