# DEX Cross-Venue Spread Summary (WETH/USDC & SOL/USDC)

> DEX Cross-Venue Spread Summary (WETH/USDC & SOL/USDC) is a paid API for AI agents from api.agentfeeds.jp, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns 1-minute cross-venue bid-ask spread statistics in basis points for WETH/USDC (across Uniswap v3 0.05%/0.3% and Aerodrome Slipstream on Base) and SOL/USDC (Jupiter aggregator mid vs executable quote).

## Facts

- Endpoint: GET https://api.agentfeeds.jp/v1/dex/spreads/summary
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dex-cross-venue-spread-summary-weth-usdc-sol-usdc-eb61dd2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QEFpS47q8lMDN0pXb1sLp

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 dex-cross-venue-spread-summary-weth-usdc-sol-usdc-eb61dd2a
```

Example prompt: Can you pull the latest cross-venue spread summary for WETH/USDC — I want to see how the basis-point spreads compare across Uniswap v3 0.05%, Uniswap v3 0.3%, and Aerodrome Slipstream on Base right now?

## When to prefer this

Use this endpoint when you need up-to-date, cross-venue DEX spread statistics in basis points for WETH/USDC or SOL/USDC — especially when comparing liquidity costs across Uniswap v3 fee tiers and Aerodrome Slipstream on Base, or measuring SOL/USDC market impact via Jupiter. Prefer this over the bulk historical endpoint (/v1/dex/spreads/history) when you need a concise summary rather than a full time series, and over the TWAP endpoint when you want spread/liquidity data rather than price averages.

## Known failure modes

- Invalid 'pair' parameter (not 'WETH/USDC' or 'SOL/USDC') returns an error or empty result
- 'since' timestamp in invalid ISO format causes a 400 bad request
- 'limit' out of range (below 1 or above 500) causes a validation error
- Payment not included or insufficient (x402 payment required, $0.002 USDC per call)
- Temporary unavailability of on-chain data sources (Uniswap, Aerodrome, Jupiter) may return stale or partial data
- Network timeouts if Base RPC or Jupiter API is slow

## How this service works

1-minute cross-venue spread statistics (bps). WETH/USDC across Uniswap v3 0.05%/0.3% and Aerodrome Slipstream on Base (on-chain mids); SOL/USDC as Jupiter aggregator mid vs executable 1-SOL quote (liquidity/impact measure, Powered by Jupiter). Descriptive statistics only; not investment advice. Free 15-min-delayed sample: /v1/sample/dex.spread_summary

## Output

Returns descriptive statistics of 1-minute bid-ask spreads in basis points across multiple DEX venues: for WETH/USDC, on-chain mids from Uniswap v3 (0.05% and 0.3% fee tiers) and Aerodrome Slipstream on Base; for SOL/USDC, the Jupiter aggregator mid versus a 1-SOL executable quote as a liquidity/market-impact measure. Output includes per-pair, per-venue spread metrics suitable for monitoring or analysis.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "pair": {
       "type": "string",
       "description": "e.g. 'WETH/USDC' or 'SOL/USDC'"
      },
      "limit": {
       "type": "integer",
       "description": "1-500, default 100"
      },
      "since": {
       "type": "string",
       "description": "ISO timestamp filter"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "ts": "2026-07-19T03:09:00Z",
    "pair": "WETH/USDC",
    "samples": 12,
    "venue_a": "uniswap_v3_base_005",
    "venue_b": "aerodrome_base",
    "spread_bps_max": 6.2,
    "spread_bps_min": 0.4,
    "spread_bps_mean": 1.8
   }
  ],
  "kind": "factual_data",
  "product": "dex.spread_summary"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dex-cross-venue-spread-summary-weth-usdc-sol-usdc-eb61dd2a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentfeeds.jp](https://www.zero.xyz/host/api.agentfeeds.jp/llms.txt)