Api Endpoint

Crypto Fear Greed

Crypto Fear & Greed Index (alternative.me): current value 0-100, classification, history of last N days. No params. Use when an agent needs a market-sentiment gauge.

Open interactive test console

Offering

Provider: x402-data-api.sigrunner.workers.dev
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Other
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://x402-data-api.sigrunner.workers.dev/crypto/fear-greed
MIME type: application/json
First seen: 2026-10-23T22:22:02.730Z
Last seen: 2026-11-02T06:33:21.282Z
Tags: Crypto, fear-greed, Data

Website

Payment pricing

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

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10"
  }
]

Observed health

Status: Healthy
Latest latency: 1197 ms
Average latency: 1171 ms
HTTP status: 402
Last checked: 2026-11-02T06:33:21.277Z
Reachability: 100% over 7 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": {
        "days": {
          "type": "string"
        }
      }
    }
  },
  "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": {
          "properties": {
            "days": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "classification": {
              "type": "string"
            },
            "history": {
              "items": {
                "properties": {
                  "classification": {
                    "type": "string"
                  },
                  "date": {
                    "type": "string"
                  },
                  "value": {
                    "type": "integer"
                  }
                },
                "required": [
                  "value",
                  "classification",
                  "date"
                ],
                "type": "object"
              },
              "type": "array"
            },
            "value": {
              "type": "integer"
            }
          },
          "required": [
            "value",
            "classification",
            "history"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}