ToolVet
75trust / 100

Uniswap Pretrade

by graphadvocate.com in Onchain & crypto

x402 APIPassing, checked 5 h ago

Uniswap pre-trade due-diligence. POST {token, chain?, version?}. Returns real_liquidity + deepest venue (ranked by volumeUSD, NEVER TVL — Uniswap subgraph TVL is inflated by spam pools), alternate fee-tier venues, a two-way-flow honeypot check over recent swaps, daily volume trend, and a composed verdict {tradeable, risk, reasons}. Covers Uniswap V2/V3/V4 on Ethereum, Arbitrum, Base, Polygon, Optimism, BSC. For agents sizing or vetting a spot position before they touch a token.

POST
https://graphadvocate.com/uniswap/pretrade
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
286 ms
612 ms slowest 5%
Last check
Passed
5 h ago, next in 1 h

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

POST https://graphadvocate.com/uniswap/pretrade

Each call costs $0.02 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://graphadvocate.com/uniswap/pretrade
content-type: application/json

{
  "chain": "ethereum",
  "token": "WETH"
}

Parameters

ParameterTypeRequiredDescription
chainstringNo
tokenstringYes
versionstringNo

Example response

The provider's example. We can't check it without paying.

Example response, 26 lines
{
  "best_venue": {
    "fee_tier": 500,
    "pair": "USDC/WETH",
    "real_liquidity": true,
    "tvl_usd": 360200000
  },
  "flow": {
    "buys": 19,
    "honeypot_risk": "low",
    "sells": 6,
    "two_way": true
  },
  "token": {
    "price_usd": 1859.05,
    "symbol": "WETH"
  },
  "trend": {
    "direction": "falling",
    "pct_vs_3day_avg": -28.5
  },
  "verdict": {
    "risk": "medium",
    "tradeable": true
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://graphadvocate.com/uniswap/pretrade' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"ethereum","token":"WETH"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://graphadvocate.com/uniswap/pretrade' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"ethereum","token":"WETH"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fgraphadvocate.com%2Funiswap%2Fpretrade&method=POST
const res = await pay("https://graphadvocate.com/uniswap/pretrade", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "chain": "ethereum",
    "token": "WETH"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://graphadvocate.com/uniswap/pretrade",
        json={
            "chain": "ethereum",
            "token": "WETH",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
5 h agoPassed402248 ms$0.02
9 h agoPassed402280 ms$0.02
14 h agoPassed402278 ms$0.02
18 h agoPassed402365 ms$0.02
22 h agoPassed402336 ms$0.02
Show 10 older checks
26 h agoPassed402300 ms$0.02
30 h agoPassed402286 ms$0.02
34 h agoPassed402320 ms$0.02
38 h agoPassed402295 ms$0.02
42 h agoPassed402258 ms$0.02
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2 days agoPassed402309 ms$0.02
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2 days agoPassed402255 ms$0.02
3 days agoPassed402262 ms$0.02