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Crypto Fear and Greed Index (Alternative.me)

alternativeme/fear-greed-index

The Crypto Fear and Greed Index: a 0 (extreme fear) to 100 (extreme greed) score of overall crypto market sentiment, newest day first, with its text class (Extreme Fear, Fear, Neutral, Greed, Extreme Greed). Ask for 1 for today or up to 365 for a daily history. Values are strings, as the service sends them. Alternative.me public API data, passed through and served by Eden Engine; not an official Alternative.me product.

activeper callv1

Price

$0.0026 per call

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 $0.50.

Data source

Alternative.me

Data from alternative.me (https://alternative.me/crypto/api/). Served by Eden Engine; not an official Alternative.me product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

Install itCreate an account
agent
// 1. search: find the tool
omnial_search({ query: "what you need" })

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

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

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

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

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

ChargePrice
Per call
$0.0026
Updated
Oct 21, 2026

Input and output schemas

Input schema
input_schema.json
{
  "type": "object",
  "required": [
    "limit"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 365,
      "minimum": 1,
      "description": "How many days to return, newest first, 1 to 365. 1 is today's reading."
    }
  },
  "additionalProperties": false
}
Output schema
output_schema.json
{
  "type": "object",
  "required": [
    "data",
    "metadata"
  ],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "value",
          "value_classification",
          "timestamp"
        ],
        "properties": {
          "value": {
            "type": "string",
            "description": "Score 0-100 as a string."
          },
          "timestamp": {
            "type": "string",
            "description": "Unix seconds (00:00 UTC of the day) as a string."
          },
          "time_until_update": {
            "type": "string",
            "description": "Seconds until the next reading; present on the newest row only."
          },
          "value_classification": {
            "type": "string",
            "description": "Extreme Fear, Fear, Neutral, Greed or Extreme Greed."
          }
        },
        "additionalProperties": true
      },
      "description": "Newest day first."
    },
    "name": {
      "type": "string",
      "description": "Always \"Fear and Greed Index\"."
    },
    "metadata": {
      "type": "object",
      "properties": {
        "error": {
          "type": [
            "string",
            "null"
          ],
          "description": "Error text; null on success."
        }
      },
      "description": "Request status; `error` is null on success.",
      "additionalProperties": true
    }
  },
  "additionalProperties": true
}