Index onlineMerchant portal
Api Endpoint

stats-correlation

Pearson correlation coefficient between two equal-length numeric series.

Open interactive test console

Offering

Provider
x402.agentindex.world
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Data
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402.agentindex.world/stats/correlation
MIME type
application/json
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
statistics, correlation, pearson, data analysis

Website

Payment pricing

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

Payment option 1
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
  }
]

Observed health

Status
Reachable
Latest latency
1228 ms
Average latency
1038 ms
HTTP status
405
Last checked
Reachability
100% over 12 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": [
        "POST",
        "PUT",
        "PATCH"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "properties": {
        "x": {
          "items": {
            "type": "number"
          },
          "minItems": 2,
          "title": "X",
          "type": "array"
        },
        "y": {
          "items": {
            "type": "number"
          },
          "minItems": 2,
          "title": "Y",
          "type": "array"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "title": "CorrelationInput",
      "type": "object"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "pearson_r": {
          "title": "Pearson R",
          "type": "number"
        }
      },
      "required": [
        "pearson_r"
      ],
      "title": "CorrelationOutput"
    }
  },
  "required": [
    "type"
  ]
}