# SYNTHORA Metals & Macro

> SYNTHORA Metals & Macro is a paid API for AI agents from commodity-macro.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Returns gold, silver, and major macro FX rates in a single call using ECB and metals reference data, optimized for portfolio-hedging agents.

## Facts

- Endpoint: POST https://commodity-macro.hergertsynthora.com/service
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-metals-macro-d9634b66
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gb3oJYh47y1QRhKksQOzX

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 synthora-metals-macro-d9634b66 -d '<json body>'
```

Example prompt: Pull me the latest EUR-based FX rates and precious metals reference data — I need gold, silver, CHF, and GBP for my portfolio hedge check.

## When to prefer this

Choose this endpoint when you need both precious metals (gold, silver) and ECB-sourced major FX cross rates in a single low-cost call, especially for EUR-centric portfolio hedging workflows. Prefer it over separate metals APIs or FX APIs when consolidated macro reference data is sufficient and cost per call matters at $0.001 USDC.

## Known failure modes

- Invalid or unrecognized symbol string returns error or empty rates map
- Upstream Frankfurter API unavailability causes stale or failed response
- Network timeout if the commodity-macro host is slow to respond
- Missing or malformed 'symbols' field may return a partial or default response

## How this service works

Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.

## Output

A JSON object containing a boolean 'ok' field, a 'niche' label ('commodity-macro'), a 'result' block with the EUR base currency, today's date, and a map of currency/metal symbol rates, plus a 'provenance' block showing the upstream source URL and service name.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "required": [
   "ok",
   "niche"
  ],
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "error": {
    "type": "string"
   },
   "niche": {
    "type": "string"
   },
   "result": {
    "type": "object",
    "properties": {
     "base": {
      "type": "string"
     },
     "date": {
      "type": "string"
     },
     "rates": {
      "type": "object"
     },
     "value": {
      "type": "number"
     }
    }
   },
   "receipt": {
    "type": "object"
   }
  }
 },
 "example": {
  "ok": true,
  "niche": "commodity_macro",
  "result": {},
  "receipt": {
   "alg": "ed25519"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-metals-macro-d9634b66/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commodity-macro.hergertsynthora.com](https://www.zero.xyz/host/commodity-macro.hergertsynthora.com/llms.txt)