# Crypto Fear & Greed Index API

> Crypto Fear & Greed Index API is a paid API for AI agents from orchard-data.letom1176.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns the current and previous crypto fear & greed index readings as JSON

## Facts

- Endpoint: GET https://orchard-data.letom1176.workers.dev/api/fear-greed
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-fear-greed-index-api-f228ef2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RQvhb8-lUFZ94KCXoXQJm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-fear-greed-index-api-f228ef2a
```

Example prompt: What's the current crypto fear and greed index, and how does it compare to the previous reading?

## When to prefer this

Use this endpoint when you need a quick, cheap ($0.001 USDC) snapshot of the current and previous crypto market sentiment index without needing historical time series data or detailed breakdowns. Prefer this over manual scraping or heavier APIs when you just want the latest fear & greed number and label.

## Known failure modes

- Service unavailable or worker error returning 5xx
- Upstream data source for fear & greed index is stale or unreachable
- Payment not processed correctly resulting in 402 response
- Malformed JSON response if the worker encounters an unexpected error

## How this service works

Crypto fear & greed index (current + previous reading). JSON.

## Output

A JSON object containing the current crypto fear & greed index numeric value and label (e.g. 'Fear', 'Greed', 'Extreme Fear') along with the previous reading, enabling comparison of market sentiment over time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-fear-greed-index-api-f228ef2a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orchard-data.letom1176.workers.dev](https://www.zero.xyz/host/orchard-data.letom1176.workers.dev/llms.txt)