402api Token Check

What the provider says

Quoted from x402 Bazaar · source record · read 2026-10-25

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Facts and where they come from

Price

0.02 USDC per call Provider claim

Recorded value: 0.02 USDC per call.

Unit

per call

Protocol

x402, REST · transport: HTTP Provider claim

Auth

x402

Endpoint

https://tokencheck.402api.dev/v1/token-check

Source

x402 Bazaar (Coinbase CDP) · Public discovery API (provider-published records)

Last checked

Not checked by us yet — the data is as the source published it

First seen

2026-10-24

Usage

3 calls · 2 unique payers in the 30 days before 2026-10-24. Measured by the x402 Bazaar, not by us and not by the provider.

Payments and earnings

No settled payment on record. Earnings for this service are unknown — not zero. The source counts 3 calls in 30 days, which at the published price is roughly $0.06 of activity. Activity is not revenue; no charge has been reconciled for it.

Payment rails

A payment rail is where the provider asks to be paid. It is not proof that anything was paid through it. See evidence levels.

Input and output, as published

Request

{
    "discoverable": true,
    "method": "GET",
    "queryParams": {
        "token": "0x940181a94A35A4569E4529A3CDfB74e38FD98631"
    },
    "type": "http"
}

Response

{
    "example": {
        "block": "52398867",
        "ethUsd": 2485.34437,
        "measuredAt": "2026-10-09T23:04:45.143Z",
        "notes": [
            "16 smaller pool(s) omitted.",
            "5 pool(s) with under $1,000 measured liquidity omitted.",
            "Measured facts, not advice. The simulated sell shows a fresh wallet can sell right now; owner-changeable taxes, blacklists or trading switches can still change later."
        ],
        "pools": [
            {
                "address": "0x6cDcb1C4A4D1C3C6d054b27AC5B77e89eAFb971d",
                "feePct": 0.3,
                "liquidityMethod": "2 \u00d7 the pool's USDC balance (balanceOf at block 52398867); for concentrated-liquidity pools this counts all reserves, not in-range depth",
                "liquidityUsd": 43758468,
                "pairedWith": {
                    "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                    "symbol": "USDC"
                },
                "sellable": {
                    "amountIn": "27317.378708653002392855",
                    "amountOut": "21791.869827",
                    "method": "on-chain quoter/reserves eth_call selling 0.1% of the pool's token balance into this pool (does not detect wallet-level transfer blocks or the tax itself)",
                    "ok": true,
                    "outUsd": 21791.869827
                },
                "source": "tracked by 402api",
                "transferTax": {
                    "method": "402api taxcheck job at 2026-10-08T20:25:52.000Z: receipts of the pool's 3 most recent swaps",
                    "samples": [],
                    "taxed": false
                },
                "venue": "aeroV2"
            },
            {
                "address": "0xbBf71AAD6E1F8D180D3B1D898528654c1d18b2fF",
                "feePct": 1,
                "liquidityMethod": "402api registry estimate (pool added 2026-10-08, value refreshed by the registry job)",
                "liquidityUsd": 4664205,
                "pairedWith": {
                    "address": "0x74ccbe53F77b08632ce0CB91D3A545bF6B8E0979",
                    "symbol": "fBOMB"
                },
                "sellable": {
                    "amountIn": "2857.2894550549357344",
                    "amountOut": "103557.570587184740374855",
                    "method": "on-chain quoter/reserves eth_call selling 0.1% of the pool's token balance into this pool (does not detect wallet-level transfer blocks or the tax itself)",
                    "ok": true,
                    "outUsd": null
                },
                "source": "tracked by 402api",
                "transferTax": {
                    "method": "receipts of the pool's 2 most recent swap(s) found by eth_getLogs (Swap event) over the last 500 blocks: does part of a AERO transfer out of / payment into the pool go to the token contract or a burn address?",
                    "samples": [
                        "0x0bfd8e34e528e56ee56cd480722025c2f149d87152e1a6b2e209cc4b30f97b7d",
                        "0x8ae22c6b10bdfd766ae7c09cc0c6ed2a55b001e4835524cd8e3597207f587608"
                    ],
                    "taxed": false
                },
                "venue": "aeroV2"
            }
        ],
        "poolsOmitted": 29,
        "reasons": [
            "Total measured liquidity $66,630,326 across 10 pool(s).",
            "Sell quote succeeded on all 6 pool(s) checked.",
            "No transfer tax seen in recent swaps on 5 pool(s).",
            "Simulated $25 buy then full sell on the aeroV2 USDC pool lost 0.6% (pool fees account for 0.6%): sells work and no meaningful tax."
        ],
        "sellSimulation": {
            "bought": "31.120142866883571174",
            "feesPct": 0.6,
            "method": "eth_simulateV1 at block 52398867: a fresh address funded by state override spends 25 USDC buying through aeroV2 router 0xcF77a3Ba9A5CA399B7c97c74d54e5b1Beb874E43, then sells every token it received back into the same pool (nothing is signed or broadcast)",
            "ms": 503,
            "ok": true,
            "pool": "0x6cDcb1C4A4D1C3C6d054b27AC5B77e89eAFb971d",
            "receivedBack": "24.850225",
            "roundTripLossPct": 0.6,
            "spent": {
                "amount": "25",
                "symbol": "USDC",
                "usd": 25
            },
            "stage": "sell",
            "venue": "aeroV2"
        },
        "token": {
            "address": "0x940181a94A35A4569E4529A3CDfB74e38FD98631",
            "chain": "base",
            "decimals": 18,
            "method": "ERC-20 symbol()/name()/decimals()/totalSupply() eth_call at block 52398867",
            "name": "Aerodrome",
            "symbol": "AERO",
            "totalSupply": "1997645621.866174935169948746"
        },
        "verdict": "ok"
    },
    "type": "json"
}

Examples are the provider's own, not a call we made.

Provenance

One row per statement. “Verified” means we checked it ourselves and the finding is quoted. “Provider claim” means we read it in the provider's own record. “Not found” is a statement about our search, not proof of absence.

Endpoint checks

We have not called this endpoint yet. Until we do, everything above is what the source published — no more.

Tags

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