On-chain DEX pool data API: reads Uniswap v2/v3-compatible liquidity pools from Ethereum,
On-chain DEX pool data API: reads Uniswap v2/v3-compatible liquidity pools from Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, and Avalanche via JSON-RPC — no third-party data vendor. Auto-detects pool type; returns token addresses, symbols, decimals, spot price both directions, v3 fee tier, sqrtPriceX96 and in-range liquidity, or v2 decimal-adjusted reserves. For price discovery, liquidity checks, and trading agents needing trustless pair state. Cached up to 30 seconds.
10000 (raw units)
price
3
calls / 30d
2
unique payers
2026-08-30
updated
Provider
gateway.stride20k.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x552Cc4A10878C7F20574489D47184249657Ca3f6",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"pathParams": {
"chain": "base",
"poolAddress": "0xd0b53D9277642d899DF5C87A3966A349A798F224"
},
"queryParams": {},
"type": "http"
},
"output": {
"example": {
"data": {
"chain": "base",
"feeTierBps": 5,
"inRangeLiquidity": "982849519553028412",
"pool": "0xd0b53d9277642d899df5c87a3966a349a798f224",
"poolType": "uniswap-v3-compatible",
"price": {
"token0PerToken1": 0.000571,
"token1PerToken0": 1749.08
},
"sqrtPriceX96": "3313476886659605909169204",
"token0": {
"address": "0x4200000000000000000000000000000000000006",
"decimals": 18,
"symbol": "WETH"
},
"token1": {
"address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"decimals": 6,
"symbol": "USDC"
}
},
"endpoint": "/dex/pool/:chain/:poolAddress",
"meta": {
"attribution": null,
"cached": false,
"fetchedAt": "2026-07-04T00:00:00.000Z",
"source": "on-chain (PublicNode/dRPC JSON-RPC)"
},
"ok": true
},
"type": "json"
}
},
"routeTemplate": "/dex/pool/:chain/:poolAddress",
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"properties": {
"chain": {
"aliases": {
"1": "ethereum",
"10": "optimism",
"56": "bsc",
"137": "polygon",
"8453": "base",
"42161": "arbitrum",
"43114": "avalanche",
"arb": "arbitrum",
"avax": "avalanche",
"bnb": "bsc",
"eth": "ethereum",
"matic": "polygon",
"op": "optimism"
},
"description": "Chain to read from. Shorthands accepted: 1, 10, 56, 137, 8453, 42161, 43114, eth, arb, op, matic, avax, bnb.",
"enum": [
"ethereum",
"base",
"polygon",
"arbitrum",
"optimism",
"bsc",
"avalanche"
],
"missTrack": true,
"normalize": "lower",
"type": "string"
},
"poolAddress": {
"description": "Pool (pair) contract address, 0x-prefixed.",
"pattern": "0x[a-fA-F0-9]{40}",
"type": "string"
}
},
"required": [
"chain",
"poolAddress"
],
"type": "object"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"chain": {
"description": "Chain queried.",
"type": "string"
},
"feeTierBps": {
"description": "v3 only: fee tier in basis points (e.g. 30 = 0.3%).",
"type": "number"
},
"inRangeLiquidity": {
"description": "v3 only: current in-range liquidity, as decimal string.",
"type": "string"
},
"pool": {
"description": "Pool contract address.",
"type": "string"
},
"poolType": {
"description": "'uniswap-v3-compatible' or 'uniswap-v2-compatible'.",
"type": "string"
},
"price": {
"description": "Decimal-adjusted spot price: { token1PerToken0, token0PerToken1 }.",
"type": "object"
},
"reserves": {
"description": "v2 only: decimal-adjusted { token0, token1 } reserves.",
"type": "object"
},
"sqrtPriceX96": {
"description": "v3 only: raw sqrt price, Q64.96, as decimal string.",
"type": "string"
},
"token0": {
"description": "First pool token: { address, symbol, decimals }.",
"type": "object"
},
"token1": {
"description": "Second pool token: { address, symbol, decimals }.",
"type": "object"
}
},
"required": [
"chain",
"pool",
"poolType",
"token0",
"token1",
"price"
],
"type": "object"
},
"endpoint": {
"description": "Always \"/dex/pool/:chain/:poolAddress\".",
"type": "string"
},
"meta": {
"properties": {
"attribution": {
"description": "Licensing attribution when the source requires it.",
"type": [
"string",
"null"
]
},
"cached": {
"description": "Whether this response was served from cache.",
"type": "boolean"
},
"fetchedAt": {
"description": "ISO 8601 time the data was actually retrieved from the upstream.",
"type": "string"
},
"source": {
"description": "Upstream source: on-chain (PublicNode/dRPC JSON-RPC).",
"type": "string"
}
},
"required": [
"source",
"cached",
"fetchedAt"
],
"type": "object"
},
"ok": {
"description": "true on success.",
"type": "boolean"
}
},
"required": [
"ok",
"endpoint",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://gateway.stride20k.com/dex/pool/:chain/:poolAddress" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://gateway.stride20k.com/dex/pool/:chain/:poolAddress");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://gateway.stride20k.com/dex/pool/:chain/:poolAddress")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/1153.json, and this resource appears in /discovery/resources and /discovery/search.