# Xynaptic Crypto Brief

> Xynaptic Crypto Brief is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-01).

Returns a daily structured JSON digest of crypto market prices (BTC, ETH, SOL, ADA) and 24-hour moves plus major headlines, refreshed every morning.

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/crypto-brief?utm_source=zero.xyz
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-crypto-brief-b5e1b362
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vuCTyn9bg5p7VhvWOqhKw

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 xynaptic-crypto-brief-b5e1b362
```

Example prompt: Give me this morning's crypto brief — I want BTC, ETH, SOL, and ADA prices, their 24-hour moves, and the major headlines, all in one structured summary.

## When to prefer this

Choose this endpoint when you need a single, pre-packaged daily snapshot of the top crypto prices and headlines as structured JSON without assembling multiple feeds yourself. Prefer it over the Xynaptic Crypto Live endpoint when real-time tick-level prices are not required and a once-daily morning digest is sufficient. Ideal for morning briefings, newsletters, and portfolio context where freshness of seconds does not matter.

## Known failure modes

- Payment not provided or insufficient (x402 payment required, $0.015 USDC)
- Stale data if requested before the morning refresh completes
- Service unavailable or timeout during refresh window
- Malformed or empty response if upstream price feed fails

## How this service works

Xynaptic Crypto Brief — daily crypto market digest (BTC, ETH, SOL, ADA prices, 24h moves, major headlines) as structured JSON. Refreshed every morning.

## Output

A structured JSON object containing the current prices for BTC, ETH, SOL, and ADA, their 24-hour percentage moves, and major crypto market headlines, reflecting the most recent morning refresh.

## 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",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "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/xynaptic-crypto-brief-b5e1b362/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xynaptic.io](https://www.zero.xyz/host/api.xynaptic.io/llms.txt)