# Arkham Polymarket Stats

> Arkham Polymarket Stats is a paid API for AI agents from api.arkm.com, paid per call via x402, $0.4/call, status unknown (last checked 2026-09-15).

Retrieves Arkham's onchain intelligence stats for Polymarket prediction market activity.

## Facts

- Endpoint: POST https://api.arkm.com/x402/polymarket/stats
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arkham-polymarket-stats-5918211f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GmwUXDeIMolM4eyng7_Je

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 arkham-polymarket-stats-5918211f -d '<json body>'
```

Example prompt: Pull the latest Arkham Polymarket stats so I can see current prediction market activity and trading metrics.

## When to prefer this

Choose this endpoint when you need Arkham Intelligence's curated onchain view of Polymarket prediction market statistics, particularly when you want entity-labeled, intelligence-enriched market data rather than raw Polymarket API data. Especially useful when combining Polymarket insights with Arkham's broader onchain entity and address intelligence ecosystem.

## Known failure modes

- Missing or malformed request body returns a 400 error
- Insufficient USDC balance (requires $0.40 per call) results in payment failure
- Invalid x402 payment header causes authentication rejection
- Empty or unrecognized body fields may return empty results
- API rate limiting or service downtime returns 5xx errors

## How this service works

Get Arkham Polymarket stats. $0.40 per call.

## Output

Returns Polymarket-related statistics and onchain intelligence data as aggregated by Arkham Intelligence, including prediction market metrics, trading activity, and related market data points.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "properties": {},
     "additionalProperties": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "number"
       },
       {
        "type": "boolean"
       },
       {
        "type": "array",
        "items": {
         "anyOf": [
          {
           "type": "string"
          },
          {
           "type": "number"
          },
          {
           "type": "boolean"
          }
         ]
        }
       }
      ]
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arkham-polymarket-stats-5918211f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.arkm.com](https://www.zero.xyz/host/api.arkm.com/llms.txt)