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Base Token Due-Diligence Snapshot
x402
Base Token Due-Diligence Snapshot is a paid API for AI agents from ca-tax-api-mainnet.lxtap.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).
Returns a due-diligence snapshot of an ERC-20 token on Base: contract metadata, ownership/upgradeability risk flags, owner-only function detection, and DEX price/liquidity/FDV data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call data for AI agents, paid in USDC on Base with x402: token risk checks (rug check) on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana, onchain reads (balances, transactions, gas, contracts, NFTs, whale trades, new pools, ENS and Basenames), ECB exchange rates, and Canadian sales tax and business days.
Output
Returns a structured JSON object containing: token name, symbol, decimals, and total supply; contract owner address and whether ownership has been renounced; whether the contract is an upgradeable proxy; a list of detected owner-only functions (e.g. mint, pause, blacklist, setFee); and market data including USD price, liquidity depth, and fully diluted valuation sourced from the deepest WETH or USDC pool on Uniswap v3 or Aerodrome on Base.
Example use cases
Rug-pull risk check on new Base token
“I just heard about this new token on Base at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA — can you check if the owner has renounced control, if there are any mint or pause functions in the contract, and whether it's using an upgradeable proxy?”
Pre-trade liquidity and price lookup
“Before I buy some of this Base token at 0x4200000000000000000000000000000000000006, can you tell me the current USD price, total liquidity, and fully diluted valuation from its deepest Uniswap v3 or Aerodrome pool?”
Smart contract security audit for portfolio tracker
“Add a security summary for the Base token 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb to my portfolio tracker — I need to know the total supply, whether it's an upgradeable proxy, and if there are any owner-only functions like blacklisting or fee changes.”
Technical details
Endpoint
GEThttps://ca-tax-api-mainnet.lxtap.workers.dev/base/token?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call due-diligence bundle for a Base ERC-20 — combining contract metadata, ownership/proxy risk flags, dangerous function detection, and live DEX pricing in one response. Prefer it over separate on-chain RPC calls or generic token APIs when you specifically need Base network data with rug-pull risk signals (mint, pause, blacklist, upgradeability) alongside Uniswap v3/Aerodrome market data.
Side effects
- Invalid or malformed address (not matching ^0x[0-9a-fA-F]{40}$) returns a validation error
- Address is a wallet (EOA) rather than an ERC-20 contract — may return empty or error response
- Token has no liquidity pool on Uniswap v3 or Aerodrome — price/liquidity/FDV fields may be null or absent
- RPC or indexer unavailability causes timeout or 5xx error
- Token contract is non-standard or missing ERC-20 methods — metadata fields may be incomplete
- Payment not provided or insufficient — 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "Degen",
"risk": {
"level": "low",
"score": 15,
"reasons": [
{
"code": "can-pause",
"text": "The owner can pause all transfers.",
"points": 10
},
{
"code": "owner-not-renounced",
"text": "Ownership is not renounced.",
"points": 5
}
],
"summary": "Low risk: the owner can pause all transfers; ownership is not renounced."
},
"chain": "base",
"flags": {
"canMint": false,
"ownerCanAct": true,
"upgradeable": false,
"canBlacklist": false,
"noLiquidPool": false,
"canChangeFees": false,
"thinLiquidity": false
},
"notes": "Privileged functions are detected from bytecode selectors and may have false positives or misses. Liquidity is the WETH or USDC held by the deepest Uniswap v3 or aerodrome pool found.",
"owner": "0x704Ec5C12Ca20a293C2C0B72B22619A4231f3c0d",
"proxy": {
"upgradeable": false
},
"market": {
"dex": "uniswap-v3",
"pool": "0xc9034c3E7F58003E6ae0C8438e7c8f4598d5ACAA",
"priceUsd": 0.000962867,
"feeTierBps": 30,
"pairedWith": "WETH",
"poolsFound": 10,
"fullyDilutedValueUsd": 34630000,
"quoteSideLiquidityUsd": 134100
},
"symbol": "DEGEN",
"address": "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
"decimals": 18,
"nativeUsd": {
"price": 2406.48,
"source": "Chainlink ETH/USD",
"symbol": "ETH",
"updatedAt": "2026-10-23T04:00:51.000Z"
},
"totalSupply": 35967154646.5,
"ownershipRenounced": false,
"privilegedFunctions": {
"mint": false,
"pause": true,
"setFees": false,
"blacklist": false,
"tradingSwitch": false,
"maxTransaction": false
}
}
}Tags
x402
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