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Base Token Safety Snapshot (x402)
x402
Base Token Safety Snapshot (x402) is a paid API for AI agents from base-token-safety-x402.grokbot-hk.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Returns a heuristic safety snapshot of a Base ERC-20 token, including bytecode checks, proxy detection, mint/blacklist/pause function scans, and liquidity pool data, paid via x402 micropayment.
Price / call$0.01
Success—
StatusUnknown
How this service works
Heuristic safety snapshot of a Base ERC-20 from public RPC data. $0.01 USDC per call via x402 on Base.
Output
A JSON object containing: token metadata (name, symbol, decimals, total supply), a list of liquidity pools with approximate USD liquidity across DEXes (Uniswap v3, Aerodrome), and a set of heuristic safety checks each with a status of pass/warn/fail. Checks include: contract bytecode presence, proxy pattern detection, ERC-20 interface compliance, mint function presence, blacklist function presence, pause/trading-toggle functions, fee/tax setter functions, transfer limit functions, and ownership/renouncement status. Also includes RPC request count and response timing metadata.
Example use cases
Rug pull check before buying meme coin
“Before I buy this new Base meme coin, can you check if the contract at 0x4e829F8A5213c42535AB84AA40BD4aDCCE9cBa02 has any dangerous functions like minting, blacklisting, or trading pause controls?”
Verify ownership renounced on Base token
“I want to know if the owner of this Base token contract at 0x76Bf0abD20f1e0155Ce40A62615a90A709a6C3D8 has renounced ownership — can you check that for me?”
Check liquidity and safety before DeFi investment
“I'm considering adding liquidity to a Base token — can you scan the contract at 0xBA3F945812a83471d709BCe9C3CA699A19FB46f7 and show me the available liquidity pools and any safety warnings?”
Technical details
Endpoint
GEThttps://base-token-safety-x402.grokbot-hk.workers.dev/token/%7Baddress%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, low-cost ($0.01 USDC) heuristic safety snapshot of a specific Base ERC-20 token before trading or investing. It is ideal for agents doing pre-trade due diligence on Base network tokens, especially meme coins or new DeFi tokens. Prefer this over full smart contract audit services when speed and cost matter more than exhaustive analysis, and when you only need publicly-readable on-chain signals rather than source code review.
Side effects
- Invalid or non-existent contract address returns an error
- Non-ERC-20 contract may fail interface checks
- Missing x402 payment header returns 402 Payment Required
- RPC timeout or Base network congestion may delay or fail the response
- Heuristic checks may miss custom or obfuscated dangerous functions
- Proxy contracts with non-standard patterns may not be detected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"meta": {
"note": "EXAMPLE snapshot captured once for illustration; not live",
"took_ms": 250,
"version": "0.1.0",
"generated_at": "2026-10-10T00:00:00.000Z",
"rpc_requests": 8
},
"chain": "base",
"pools": [
{
"dex": "uniswap_v3",
"pool": "0xBA3F945812a83471d709BCe9C3CA699A19FB46f7",
"quote": "WETH",
"pool_param": "10000",
"approx_liquidity_usd": 1516851
},
{
"dex": "aerodrome_slipstream",
"pool": "0x4e829F8A5213c42535AB84AA40BD4aDCCE9cBa02",
"quote": "WETH",
"pool_param": "tickSpacing=200",
"approx_liquidity_usd": 765005
},
{
"dex": "uniswap_v3",
"pool": "0x76Bf0abD20f1e0155Ce40A62615a90A709a6C3D8",
"quote": "WETH",
"pool_param": "3000",
"approx_liquidity_usd": 80895
}
],
"token": {
"name": "Brett",
"symbol": "BRETT",
"decimals": 18,
"total_supply": "9999997544.340006",
"total_supply_raw": "9999997544340006294456944163"
},
"checks": [
{
"id": "is_contract",
"data": {
"bytes": 23271
},
"detail": "Contract with 23271 bytes of runtime code.",
"status": "pass"
},
{
"id": "proxy",
"detail": "No EIP-1967 / legacy-zOS / EIP-1167 proxy pattern detected (custom proxy patterns are not detected).",
"status": "pass"
},
{
"id": "erc20_interface",
"detail": "Responds to decimals() and totalSupply() like an ERC-20.",
"status": "pass"
},
{
"id": "mint_functions",
"data": [],
"detail": "No common mint selectors found (heuristic).",
"status": "pass"
},
{
"id": "blacklist_functions",
"data": [],
"detail": "No common blacklist selectors found (heuristic).",
"status": "pass"
},
{
"id": "pause_trading_functions",
"data": [
"enableTrading()"
],
"detail": "Pause/trading-toggle selectors present (enableTrading()).",
"status": "warn"
},
{
"id": "fee_tax_functions",
"data": [
"excludeFromFees(address,bool)"
],
"detail": "Fee/tax setter or exemption selectors present (excludeFromFees(address,bool)); transfer fees may be configurable.",
"status": "warn"
},
{
"id": "limit_functions",
"data": [
"removeLimits()"
],
"detail": "Max-tx/wallet/cooldown selectors present (removeLimits()).",
"status": "warn"
},
{
"id": "ownership",
"data": {
"owner": "0x0000000000000000000000000000000000000000",
"renounced": true
},
"detail": "owner() is the zero address: ownership appears renounced.",
"status": "pass"
},
{
"id": "pool_discovery",
"data": [
{
"dex": "uniswap_v3",
"pool": "0xBA3F945812a83471d709BCe9C3CA699A19FB46f7",
"quote": "WETH",
"pool_param": "10000",
"approx_liquidity_usd": 1516851
},
{
"dex": "aerodrome_slipstream",
"pool": "0x4e829F8A5213c42535AB84AA40BD4aDCCE9cBa02",
"quote": "WETH",
"pool_param": "tickSpacing=200",
"approx_liquidity_usd": 765005
},
{
"dex": "uniswap_v3",
"pool": "0x76Bf0abD20f1e0155Ce40A62615a90A709a6C3D8",
"quote": "WETH",
"pool_param": "3000",
"approx_liquidity_usd": 80895
}
],
"detail": "10 pool(s) found. Deepest by quote-side balance: uniswap_v3 10000 vs WETH (0xBA3F945812a83471d709BCe9C3CA699A19FB46f7).",
"status": "pass"
},
{
"id": "liquidity",
"data": {
"eth_usd_ref": 2486,
"deepest_pool_approx_usd": 1516851
},
"detail": "Approx. liquidity in deepest pool ≈ $1,516,851 (2x quote-side token balance held by the pool contract; may include uncollected fees / concentrated-liquidity out-of-range amounts).",
"status": "pass"
},
{
"id": "sell_simulation",
"data": {
"dex": "uniswap_v3",
"swap_ok": true,
"transfer_ok": true,
"balance_slot": 0,
"amount_in_raw": "85423709209130304503815",
"amount_out_raw": "178631767645783841"
},
"detail": "Simulated sell of 85423.709209 BRETT via uniswap_v3 (10000) succeeded (output ≈ 0.1786 WETH), and a plain transfer from a fresh address succeeded. Does NOT rule out taxes, dynamic restrictions, or later changes.",
"status": "pass"
}
],
"address": "0x532f27101965dd16442E59d40670FaF5eBB142E4",
"chainId": 8453,
"summary": "3 heuristic flag(s) raised: pause_trading_functions, fee_tax_functions, limit_functions. Flags are signals to investigate, not verdicts.",
"heuristic": true,
"confidence": "medium",
"disclaimer": "HEURISTIC, NOT FINANCIAL ADVICE. This is an automated best-effort scan of public Base on-chain data. It can miss risks and can raise false alarms. It is not an audit, a guarantee of safety, or a recommendation to buy, sell or hold anything. Verify independently; you are solely responsible for your decisions.",
"limitations": [
"Public RPC data only; no off-chain, social, holder-distribution, audit or deployer-history data is used.",
"Selector scan only shows that a function exists in bytecode, not how it is used or who can call it.",
"Sell simulation uses eth_call with state overrides against current pool state; real trades can differ (MEV, taxes applied by hidden logic, changing state).",
"Only Uniswap v3 and Aerodrome (v2 + Slipstream) pools paired with WETH or USDC on Base are searched."
],
"flagged_checks": [
"pause_trading_functions",
"fee_tax_functions",
"limit_functions"
]
}
}Tags
x402
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