Api Endpoint

bookproof-api.sn95wjq846.chatgpt.site

Read-only Polymarket market health: resolves a full Polymarket URL, slug, token ID, or search phrase, then returns spread, 1/2/5 cent depth, imbalance, fee schedule, and book freshness.

Open interactive test console

Offering

Provider
bookproof-api.sn95wjq846.chatgpt.site
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://bookproof-api.sn95wjq846.chatgpt.site/api/v1/market-health
MIME type
application/json
First seen
2026-10-16T02:01:31.612Z
Last seen
Tags
polymarket, prediction-markets, Orderbook, market-data

Payment pricing

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

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x83f6EEaE1F332Ec627fAF6467a378118fb775752"
  }
]

Observed health

Status
Healthy
Latest latency
1333 ms
Average latency
1399 ms
HTTP status
402
Last checked
Reachability
100% over 14 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": {
        "market": {
          "type": "string",
          "minLength": 2,
          "maxLength": 500,
          "description": "Polymarket URL, market slug, CLOB token ID, or market search phrase."
        }
      },
      "required": [
        "market"
      ],
      "additionalProperties": false
    },
    "pathParams": {
      "type": "object"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}