# Forgemesh Kronos Signal History

> Forgemesh Kronos Signal History is a paid API for AI agents from crypto.forgemesh.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns up to 168 hours of historical signal snapshots with timestamps and per-symbol scores for backtesting, charting, or building ML training data.

## Facts

- Endpoint: GET https://crypto.forgemesh.io/api/kronos/history
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/forgemesh-kronos-signal-history-29e70228
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YCqSSOwAIRRfIPf-Qc15u

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 forgemesh-kronos-signal-history-29e70228
```

Example prompt: Pull me the last 72 hours of Forgemesh Kronos signal history so I can chart how the per-symbol scores drifted and use the snapshots to backtest my strategy.

## When to prefer this

Use this endpoint when you need a time series of historical signal snapshots for backtesting, training data construction, or drift analysis. Prefer this over the single-snapshot alias endpoints when you need multiple time points rather than just the current state.

## Known failure modes

- hours parameter exceeds 168 — likely returns an error or is capped
- hours parameter is 0 or negative — invalid input, likely 400 error
- No data available for requested window — empty signals array returned
- Payment not processed (x402) — 402 Payment Required response
- Rate limit exceeded — 429 Too Many Requests

## How this service works

Returns up to 168 hours of historical signal snapshots with timestamps and per-symbol scores — use it to backtest, chart signal drift, or build training data.

## Output

A JSON object containing a count field and a signals array of timestamped snapshots, each with per-symbol scores covering up to the requested lookback window (max 168 hours).

## 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": {
      "hours": {
       "type": "number"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "count": {
       "type": "number"
      },
      "signals": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 96,
  "signals": [
   {
    "ts": "2026-04-30T11:00:00Z",
    "top_k": [
     "BTC/USD"
    ],
    "signals": {
     "BTC/USD": 0.001
    }
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/forgemesh-kronos-signal-history-29e70228/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crypto.forgemesh.io](https://www.zero.xyz/host/crypto.forgemesh.io/llms.txt)