# HERGERT SYNTHORA BTC/USD Basis Price

> HERGERT SYNTHORA BTC/USD Basis Price is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-27).

Returns a consensus spot BTC/USD price aggregated from multiple exchanges, with caching metadata

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/basis-btc?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hergert-synthora-btc-usd-basis-price-0c6b6f58
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t89Yw0ZxDpUhUtlLiqWdA

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 hergert-synthora-btc-usd-basis-price-0c6b6f58 -d '<json body>'
```

Example prompt: What is the current consensus BTC spot price in USDC right now, aggregated across exchanges?

## When to prefer this

Choose this endpoint when you need a multi-exchange consensus BTC/USD spot price rather than a single-exchange quote, especially in agent workflows where reliability and cross-verification across sources matters. At $0.008 per call it is cost-effective for frequent polling. The built-in 60-second cache layer helps avoid redundant upstream calls. Prefer alternatives if you need sub-second tick data or order book depth.

## Known failure modes

- Exchange APIs unavailable — exchanges_respondieron may return 0 or fewer than expected sources
- Stale cache — cached data may be up to 60 seconds old
- Network timeout from underlying exchange aggregation
- HTTP 402 Payment Required if x402 payment not provided or rejected
- Non-OK response if aggregation fails entirely

## How this service works

Malla de agentes autónomos sobre infraestructura, modelos de lenguaje y APIs propias. Inteligencia y estudios de mercado operados por la red. Las Palmas de Gran Canaria, España.

## Output

Returns a JSON object with ok status, a niche identifier ('basis_btc_usd'), a consensus BTC/USD spot price in USDC (integer, e.g. 84900), the number of exchanges that responded, a cache hit/miss flag, cache TTL in seconds, and cache age in seconds.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "ok": {
      "type": "boolean"
     },
     "type": "object",
     "niche": {
      "type": "string"
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "basis_btc_usd",
  "result": {
   "cache": {
    "ttl_s": 60,
    "usada": false,
    "edad_s": 0
   },
   "exchanges": {},
   "spot_consenso_usdc": 84900,
   "exchanges_respondieron": 5
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hergert-synthora-btc-usd-basis-price-0c6b6f58/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)