# Xynaptic Crypto Market

> Xynaptic Crypto Market is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Returns real-time crypto market regime analysis covering top 100 assets by market cap, including gainers/losers, market breadth, volatility, sentiment, and risk-on/risk-off classification.

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/crypto-market?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-crypto-market-ceaa6309
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i8OJJ5Z079REZ1GR4Cvf4

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-market-ceaa6309
```

Example prompt: What's the current crypto market regime — is it risk-on or risk-off right now? Give me the full picture including top gainers and losers, breadth, volatility, and overall sentiment.

## When to prefer this

Choose this endpoint when you need a broad, synthesized view of the entire crypto market in one call — including regime classification, sentiment, and breadth — rather than individual coin prices. Prefer it over point-in-time price feeds (like Xynaptic Crypto Live) when the goal is market-wide analysis or regime-driven decision-making rather than exact price lookup for specific assets.

## Known failure modes

- Data feed delay or staleness if upstream market data is temporarily unavailable
- HTTP 402 Payment Required if x402 payment is not properly included
- HTTP 429 rate limiting if calls exceed allowed frequency
- Empty or partial data if fewer than 100 assets have sufficient market data at call time

## How this service works

Xynaptic Crypto Market — real-time market regime analysis: top 100 assets by market cap, gainers/losers, breadth, volatility, sentiment and regime (risk-on/risk-off). USD only, agent-ready.

## Output

A structured JSON response covering the top 100 crypto assets by market cap with real-time regime classification (risk-on/risk-off), lists of top gainers and losers, market breadth metrics, current volatility indicators, and an overall sentiment score — all denominated in USD.

## 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-market-ceaa6309/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)