# Bitcoin AHR999 Accumulation Index

> Bitcoin AHR999 Accumulation Index is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Computes the Bitcoin AHR999 index and signals whether the market is in an accumulation, DCA, or wait zone, using DefiLlama price history.

## Facts

- Endpoint: GET https://api.agentstools.dev/timing/ahr999
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bitcoin-ahr999-accumulation-index-454702ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2UN3CVcskgmx2oZ_9IiWw

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 bitcoin-ahr999-accumulation-index-454702ce
```

Example prompt: What's the current AHR999 index for Bitcoin, and is it in the accumulation, DCA, or wait zone right now?

## When to prefer this

Use this endpoint when you need a structured, quantitative Bitcoin market-timing signal based on the AHR999 formula without requiring any API keys. Prefer it over raw price feeds when you specifically need the accumulation zone classification and exponential-growth valuation comparison. It is especially useful for automated agents making periodic DCA decisions or building crypto timing dashboards.

## Known failure modes

- DefiLlama price history unavailable — may return 503 or stale data error
- Invalid asset parameter (only 'btc' and 'eth' accepted; AHR999 is Bitcoin-only so 'eth' may return an error or unsupported message)
- Insufficient price history to compute 200-day geometric mean (e.g., asset too new)
- Payment not received or x402 protocol failure — returns 402 Payment Required

## How this service works

Bitcoin AHR999 accumulation index: (spot / 200-day geometric mean) * (spot / exponential-growth valuation), with the accumulation zone (bottom / dca / wait), the raw components and a short interpretation. Keyless, computed from DefiLlama price history.

## Output

Returns the AHR999 index value (a float), an accumulation zone label ('bottom', 'dca', or 'wait'), the raw components (spot price, 200-day geometric mean, exponential-growth valuation), and a short human-readable interpretation of the current signal.

## 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/bitcoin-ahr999-accumulation-index-454702ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)