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Blackwood State Base Token Price
x402
Blackwood State Base Token Price is a paid API for AI agents from x402-gateway.blackwoodstate8.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-20).
Returns the real-time USD price of any Base-chain token computed on-chain from its deepest Uniswap v3 pool against USDC or WETH, along with pool address, fee tier, and liquidity depth.
Price / call$0.002
Success—
StatusUnknown
How this service works
Use when you need a crypto token price or market data for a Base token, quoted from on-chain liquidity. Do not use for tokens that only trade off Base or on other DEXs (Aerodrome is not read), price history or OHLC. Returns JSON with the USD price of a token on Base computed on-chain from its deepest Uniswap v3 pool against USDC or WETH, with pool, fee tier and depth for 0.003 USDC per call. Typical response time 1200 ms (p95). Category: Trading.
Output
A JSON object containing the token's USD price computed from its deepest Uniswap v3 pool on Base, along with the pool contract address, fee tier (e.g. 500, 3000), liquidity depth in USD, the quote currency used (USDC or WETH), token symbol, decimals, block number, and data source. Also includes a suggested next call hint.
Example use cases
DeFi portfolio valuation on Base
“I hold VIRTUAL, DEGEN, and cbBTC on Base — what are their current USD prices on-chain so I can calculate my portfolio value?”
Token arbitrage price check
“What's the Uniswap v3 on-chain price of WETH on Base right now, and which pool and fee tier is being used to compute it?”
New token price discovery
“I just saw a new token launched on Base with contract address 0x4ed4e862860bed51a9570b96d89af5e1b0efefed — what's its current USD price from on-chain liquidity?”
Technical details
Endpoint
POSThttps://x402-gateway.blackwoodstate8.workers.dev/v1/token-price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a real-time, on-chain USD price for a token that trades on Base via Uniswap v3. It is ideal for DeFi portfolio valuation, trade execution checks, or token discovery. Prefer it over off-chain price APIs when trustless, on-chain accuracy matters. Do not use it for tokens that only trade on Aerodrome or other Base DEXs, for tokens on other chains, or for historical prices and OHLC data.
Side effects
- Token not found on Base or has no Uniswap v3 pool — returns null price or error
- Token only trades on other DEXs (e.g. Aerodrome) — not supported, no price returned
- Invalid contract address format — returns validation error
- Token exists but has insufficient liquidity for a meaningful price — may return low depth or null
- Network latency from on-chain RPC calls may exceed p95 of 1200ms under load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"pool": "0x6c561B446416E1A00E8E93E221854d6eA4171372",
"quote": "USDC",
"token": "0x4200000000000000000000000000000000000006",
"source": "Uniswap v3 on Base (on-chain)",
"symbol": "WETH",
"feeTier": 3000,
"decimals": 18,
"depthUsd": 56610101,
"priceUsd": 2421.2474,
"blockNumber": 52713897
}
}Tags
x402
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