# SOL Multi-Venue Spread Data API

> SOL Multi-Venue Spread Data API is a paid API for AI agents from workspace-x402-paywall.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Returns live SOL buy/sell prices across multiple CEX and DEX venues, identifying the widest arbitrage spread opportunity for a given notional USD amount.

## Facts

- Endpoint: GET https://workspace-x402-paywall.onrender.com/spread?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sol-multi-venue-spread-data-api-f76dac2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gHjMOCah10X-qwV7n41hd

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 sol-multi-venue-spread-data-api-f76dac2a
```

Example prompt: What's the best SOL arbitrage spread right now across CEX and DEX venues for a $500 notional trade — show me where to buy cheapest and sell highest?

## When to prefer this

Choose this endpoint when you need real-time, multi-venue SOL price and spread data in a single call, especially for arbitrage detection, trading signal generation, or market monitoring. It is uniquely suited for agents that need both CEX and DEX venue coverage simultaneously with a notional-adjusted spread estimate, and that can pay micro-fees via x402 on Base or Solana without requiring an API key or subscription.

## Known failure modes

- Missing or invalid notional parameter may return an error or default to a zero/null notional
- Payment not received (402 response) if x402 USDC payment on Base or Solana is not attached
- Venue data may be stale or incomplete if one or more exchanges are unreachable at query time
- Low venues_reporting count if exchanges are temporarily unavailable, reducing spread reliability
- Service may be unavailable if the Render deployment is cold-starting or down

## How this service works

66 pay-per-call APIs: AI text/image generation ($0.01), Polymarket odds, crypto prices, DeFi yields, FX rates, weather, IP/geo, FBI wanted, SEC tickers, clinical trials, 250M academic papers, Stack Overflow, meme-coin launchpads (pump.fun, Clanker, Four.meme, SunPump), tokenized stocks, Solana top 100, and 40+ more. $0.005/call standard. USDC on Base and Solana via x402.

## Output

A JSON object containing: per-venue CEX and DEX SOL prices, the asset identifier ('SOL'), a UTC timestamp, the notional USD used, total number of venues reporting, and a 'widest_spread' object identifying the best buy venue, best sell venue, their respective prices, gross spread percentage, and estimated net spread percentage after fees.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cex": {
   "type": "object",
   "additionalProperties": {
    "type": "number"
   }
  },
  "dex": {
   "type": "object",
   "additionalProperties": {
    "type": "number"
   }
  },
  "asset": {
   "type": "string"
  },
  "ts_utc": {
   "type": "string",
   "format": "date-time"
  },
  "notional_usd": {
   "type": "number"
  },
  "widest_spread": {
   "type": "object",
   "properties": {
    "buy_at": {
     "type": "string"
    },
    "sell_at": {
     "type": "string"
    },
    "buy_price": {
     "type": "number"
    },
    "gross_pct": {
     "type": "number"
    },
    "sell_price": {
     "type": "number"
    },
    "est_net_pct": {
     "type": "number"
    }
   }
  },
  "venues_reporting": {
   "type": "integer"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sol-multi-venue-spread-data-api-f76dac2a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workspace-x402-paywall.onrender.com](https://www.zero.xyz/host/workspace-x402-paywall.onrender.com/llms.txt)