# Vextorium Uniswap v3 Pool State (Base)

> Vextorium Uniswap v3 Pool State (Base) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-19).

Returns Uniswap v3 pool state on Base chain for a token pair: pool address, spot price, current tick, active liquidity, and token reserves per fee tier.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/uniswap-pool?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-uniswap-v3-pool-state-base-a4464811
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vq2m4VsScVFky622AbbLQ

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 vextorium-uniswap-v3-pool-state-base-a4464811 -d '<json body>'
```

Example prompt: What's the current spot price and active liquidity for the WETH/USDC pair on Uniswap v3 Base? Check the 0.05% fee tier pool.

## When to prefer this

Use this endpoint when you need real-time Uniswap v3 pool data specifically on the Base chain, including spot price, liquidity, reserves, and tick for a token pair. Prefer this over generic price APIs when you need on-chain pool mechanics (tick, active liquidity, pool address) rather than just a price quote, or when building DeFi strategies, arbitrage bots, or liquidity monitoring tools on Base.

## Known failure modes

- Token symbol not recognized — use supported symbols (WETH, ETH, USDC, USDT, DAI, cbBTC) or a valid Base contract address
- No pool found for the requested fee tier — omit fee_pct to return all available tiers
- Invalid token address format causing a lookup failure
- Pool exists but has zero liquidity — returns pool address with zero reserves
- Network or RPC latency may cause stale or failed state reads

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

Returns a JSON object with the DEX name (Uniswap v3), network (base), and an array of pools matching the token pair. Each pool entry includes: pool contract address, current tick, token0/token1 symbols, fee percentage, token reserves (amounts of each token), active liquidity as a raw integer string, and the spot price of token_a denominated in token_b.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "fee_pct": {
   "type": "number",
   "description": "Optional fee tier in % (0.01, 0.05, 0.3, 1)"
  },
  "token_a": {
   "type": "string",
   "description": "Symbol (WETH, ETH, USDC, USDT, DAI, cbBTC) or Base token address"
  },
  "token_b": {
   "type": "string",
   "description": "Symbol or Base token address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "dex": "Uniswap v3",
  "pools": [
   {
    "pool": "0xd0b53D9277642d899DF5C87A3966A349A798F224",
    "tick": -197394,
    "token0": "WETH",
    "token1": "USDC",
    "fee_pct": 0.05,
    "reserves": {
     "USDC": 4441827.816095,
     "WETH": 1947.086979064378
    },
    "active_liquidity": "1373017188058161099",
    "WETH_price_in_USDC": 2677.5653
   }
  ],
  "network": "base"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-uniswap-v3-pool-state-base-a4464811/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)