# Octodamus Macro Facts – Cross-Asset FRED Reference Numbers

> Octodamus Macro Facts – Cross-Asset FRED Reference Numbers is a paid API for AI agents from api.octodamus.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns real-time cross-asset macro reference data from FRED (10y-2y yield curve, broad USD index, S&P 500, VIX, M2) with current/prior values, deterministic notes, and a composite RISK-ON/OFF score.

## Facts

- Endpoint: GET https://api.octodamus.com/v2/macro/facts
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/octodamus-macro-facts-cross-asset-fred-reference-numbers-0185b7e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6kwiA4OLLfk-7JVXWdJs1

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 octodamus-macro-facts-cross-asset-fred-reference-numbers-0185b7e2
```

Example prompt: Pull the latest cross-asset macro facts from Octodamus — I want to see the 10y-2y yield curve spread, VIX, S&P 500, the broad dollar index, M2, and whether the composite regime is risk-on or risk-off right now.

## When to prefer this

Use this endpoint when you need a concise, pay-per-call snapshot of the five most-watched cross-asset macro indicators sourced directly from FRED, with no infrastructure overhead and a built-in risk regime composite score — ideal for AI agents needing macro context before making trading or allocation decisions.

## Known failure modes

- Missing or invalid PAYMENT-SIGNATURE header returns 402 Payment Required
- Expired or already-used EIP-3009 signature returns payment validation error
- FRED data source temporarily unavailable may return 503 or stale data
- Insufficient USDC balance on Base mainnet causes payment failure

## How this service works

Raw cross-asset macro reference numbers from FRED: 10y-2y yield curve, broad USD index, S&P 500, VIX, M2 money supply -- each with current value, prior reading, and a deterministic note, plus composite RISK-ON/OFF score.

## Output

A structured payload containing current value and prior reading for five FRED macro series (10y-2y yield curve, broad USD index, S&P 500, VIX, M2 money supply), a deterministic note for each, and an overall composite RISK-ON/RISK-OFF score.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "type": "string",
     "const": "GET"
    },
    "headers": {
     "type": "object",
     "required": [
      "PAYMENT-SIGNATURE"
     ],
     "properties": {
      "PAYMENT-SIGNATURE": {
       "type": "string",
       "description": "x402 EIP-3009 USDC payment signature (Base mainnet)"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "action": {
     "enum": [
      "BUY",
      "SELL",
      "HOLD"
     ],
     "type": "string"
    },
    "signal": {
     "enum": [
      "BULLISH",
      "BEARISH",
      "NEUTRAL"
     ],
     "type": "string"
    },
    "btc_trend": {
     "enum": [
      "UP",
      "DOWN",
      "SIDEWAYS"
     ],
     "type": "string"
    },
    "reasoning": {
     "type": "string"
    },
    "confidence": {
     "type": "number",
     "maximum": 1,
     "minimum": 0
    },
    "fear_greed": {
     "type": "number",
     "maximum": 100,
     "minimum": 0
    },
    "polymarket_edge": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/octodamus-macro-facts-cross-asset-fred-reference-numbers-0185b7e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.octodamus.com](https://www.zero.xyz/host/api.octodamus.com/llms.txt)