Crypto Fear & Greed Index (Current Value & History)

omnial/x402-fear-greed-index

Returns the Crypto Fear & Greed Index -- a 0-100 market sentiment score with a text classification from Extreme Fear to Extreme Greed -- for today by default, or as a multi-day history (up to 30 days) with a rolling average and trend when requested.

activeper callv2

Price

Up to $0.0325 per call; you pay what the call used

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.00.

Data source

Alternative.me

Data from Alternative.me.

Use it

Your AI assistant does the work: it finds this tool, shows you the price first, runs it, and you are charged when the run finishes. There is nothing to set up for this tool in particular.

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For developers: the calls your assistant makes

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "omnial/x402-fear-greed-index" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "omnial/x402-fear-greed-index" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "omnial/x402-fear-greed-index", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "omnial/x402-fear-greed-index", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0325

Updated: Oct 27, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "days"
  ],
  "properties": {
    "days": {
      "type": "number",
      "description": "Number of days of history to return (1-30). Pass 1 for today's reading only."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "current_value",
    "classification",
    "timestamp",
    "attribution"
  ],
  "properties": {
    "trend": {
      "type": "string",
      "description": "Direction of the index over the requested window, e.g. 'rising'. Only present when days > 1; only 'rising' observed in testing."
    },
    "average": {
      "type": "number",
      "description": "Mean of history[].value over the requested window. Only present when days > 1."
    },
    "history": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "date": {
            "type": "string",
            "description": "ISO 8601 date for that day's reading."
          },
          "value": {
            "type": "number",
            "description": "Sentiment score from 0 to 100 for that day."
          },
          "classification": {
            "type": "string",
            "description": "Label for that day's value."
          }
        },
        "additionalProperties": false
      },
      "description": "One entry per day in the requested window, most recent first. Only present when days > 1."
    },
    "timestamp": {
      "type": "string",
      "description": "ISO 8601 date the current_value/classification reading applies to."
    },
    "attribution": {
      "type": "string",
      "description": "Plain-text credit line for the index's publisher, observed identical on both calls."
    },
    "current_value": {
      "type": "number",
      "description": "Sentiment score from 0 (Extreme Fear) to 100 (Extreme Greed) for the most recent day."
    },
    "classification": {
      "type": "string",
      "description": "Label for current_value. Observed values: 'Greed', 'Neutral'. The endpoint's documented scale also includes 'Extreme Fear', 'Fear', and 'Extreme Greed', not observed in testing."
    }
  },
  "description": "The fear & greed index response.",
  "additionalProperties": false
}