# timing-fng

> timing-fng is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the current Crypto Fear & Greed index with market-timing context: value, classification, 7-day and 30-day deltas, streak, 30-day min/max, and a contrarian signal on extremes.

## Facts

- Endpoint: GET https://payai.agentstools.dev/timing/fng
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/timing-fng-84e832e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uuUzBZO3PeoGlOgdcCvTI

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 timing-fng-84e832e9
```

Example prompt: What's the current Bitcoin Fear & Greed index — is it in extreme fear or greed, how has it moved over the last 7 and 30 days, and is there a contrarian signal right now?

## When to prefer this

Choose this endpoint when you need a single, keyless, structured snapshot of crypto market sentiment with built-in trend context (deltas, streak, min/max) and a contrarian signal — rather than raw index data alone. Ideal for agents building market-timing logic, sentiment dashboards, or alerting workflows without managing API keys.

## Known failure modes

- Invalid asset enum value returns a validation error
- Upstream data source outage may result in stale or unavailable index values
- Missing required method or type fields in input schema cause a 400-level error

## How this service works

Crypto Fear & Greed index with a market-timing trend: current value and classification, 7-day and 30-day deltas, streak in the current regime, 30-day min and max, and a contrarian flag on extreme fear or greed. Keyless.

## Output

Returns the current Fear & Greed index value and textual classification, the 7-day and 30-day deltas, the number of consecutive days in the current regime (streak), the 30-day minimum and maximum values, and a boolean contrarian flag that triggers on extreme fear or extreme greed readings.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "asset": {
       "enum": [
        "btc",
        "eth"
       ],
       "type": "string",
       "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"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/timing-fng-84e832e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)