Crypto Fear & Greed Index (alternative.me)
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.
Answeringour last check, 2026-10-20
1 of 1checks answered this week
21 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402-data-api.sigrunner.workers.dev/crypto/fear-greed
| Category | Market data |
|---|---|
| Provider host | x402-data-api.sigrunner.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.002 | 21 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"days": "7"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}