# Crypto Market Timing Indicators (Fear & Greed, AHR999, Mayer Multiple, 200WMA, Pi Cycle)

> Crypto Market Timing Indicators (Fear & Greed, AHR999, Mayer Multiple, 200WMA, Pi Cycle) is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.013/call, status unknown (last checked 2026-10-31).

Returns crypto market timing indicators including Fear & Greed index and Bitcoin-specific cycle metrics via a pay-per-call USDC micropayment endpoint.

## Facts

- Endpoint: GET https://x402helper.xyz/89e509/timing/fng?utm_source=zero.xyz
- Price: $0.013/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-timing-indicators-fear-greed-ahr999-mayer-multiple-8525a59f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6BRNgbyGYH2mMaLI0tKRx

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-market-timing-indicators-fear-greed-ahr999-mayer-multiple-8525a59f
```

Example prompt: What are the current Bitcoin market timing indicators — Fear & Greed index, AHR999, Mayer Multiple, and Pi Cycle — so I can gauge where we are in the cycle?

## When to prefer this

Choose this endpoint when you need a bundled set of Bitcoin or crypto market cycle timing indicators (Fear & Greed, AHR999, Mayer Multiple, 200WMA, Pi Cycle) in a single low-cost USDC micropayment call, rather than scraping multiple free sources or paying for a full analytics subscription.

## Known failure modes

- Payment not provided or insufficient USDC — returns HTTP 402 with payment requirements
- Invalid asset parameter (only 'btc' or 'eth' accepted) — returns error or default to btc
- Service unavailable or upstream data source down — returns HTTP 5xx
- AHR999 only available for btc asset — querying eth may return partial results

## How this service works

X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.

## Output

A JSON object containing a success flag and a result object with current values for market timing indicators such as the Fear & Greed index (AHR999 is Bitcoin-only), Mayer Multiple, 200-week moving average, and Pi Cycle indicator, depending on the asset queried.

## 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",
     "required": [],
     "properties": {
      "asset": {
       "enum": [
        "btc",
        "eth"
       ],
       "type": "string",
       "default": null,
       "description": "Asset key (default btc). AHR999 is Bitcoin-only; Mayer/200WMA/Pi-Cycle are asset-agnostic."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {},
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-timing-indicators-fear-greed-ahr999-mayer-multiple-8525a59f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402helper.xyz](https://www.zero.xyz/host/x402helper.xyz/llms.txt)