58trust / 100

Site Screen

by Land Survey Screening in Other

x402 APIPassing, checked 13 h ago

First-look site screen for a US coordinate: elevation, FEMA flood zone and mapped wetlands combined, with flags.

GET
https://land-survey.x402tookit.com/site-screen
Price
$0.05
per call in USDC
Uptime
53.3%
last 30 days
Response time
518 ms
748 ms slowest 5%
Last check
Passed
13 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://land-survey.x402tookit.com/site-screen

Each call costs $0.05 in USDC on Polygon, 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.

GET https://land-survey.x402tookit.com/site-screen?lat=25.7617&lon=-80.1918

Parameters

ParameterTypeRequiredDescription
latnumberYesLatitude
lonnumberYesLongitude

Example response

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

Example response, 30 lines
{
  "asOf": "2026-10-11T03:48:10.883Z",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "elevationFeet": 1.4,
  "flags": [
    "FEMA zone AE: high risk SFHA"
  ],
  "flood": {
    "baseFloodElevationFeet": 12,
    "class": "HIGH_RISK_SFHA",
    "specialFloodHazardArea": true,
    "zone": "AE"
  },
  "lat": 25.7617,
  "lon": -80.1918,
  "notChecked": [
    "zoning, easements, utilities, soils, endangered species, contamination",
    "boundaries and parcel lines",
    "…2 more"
  ],
  "reasons": [
    "FEMA zone AE: high risk SFHA"
  ],
  "source": "USGS 3DEP + FEMA NFHL + USFWS NWI (not endorsed by USGS, FEMA or USFWS)",
  "sourceUrl": "https://hazards.fema.gov",
  "summary": "25.7617, -80.1918: 1.4 ft; flood AE; wetland not mapped. Flags: FEMA zone AE: high risk SFHA",
  "verdict": "CONSTRAINT_FOUND",
  "wetland": null
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://land-survey.x402tookit.com/site-screen?lat=25.7617&lon=-80.1918'

# 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 - 'https://land-survey.x402tookit.com/site-screen?lat=25.7617&lon=-80.1918' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fland-survey.x402tookit.com%2Fsite-screen
const res = await pay("https://land-survey.x402tookit.com/site-screen?lat=25.7617&lon=-80.1918");
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://land-survey.x402tookit.com/site-screen?lat=25.7617&lon=-80.1918")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
13 h agoPassed402518 ms$0.05
45 h agoExpected HTTP 402, got 53053097 ms-
3 days agoExpected HTTP 402, got 530530100 ms-
4 days agoExpected HTTP 402, got 530530134 ms-
5 days agoExpected HTTP 402, got 53053093 ms-
Show 10 older checks
5 days agoExpected HTTP 402, got 530530107 ms-
5 days agoExpected HTTP 402, got 530530174 ms-
5 days agoExpected HTTP 402, got 530530248 ms-
5 days agoPassed402236 ms$0.05
5 days agoPassed402553 ms$0.05
6 days agoPassed402550 ms$0.05
6 days agoPassed402577 ms$0.05
6 days agoPassed402503 ms$0.05
6 days agoPassed402250 ms$0.05
7 days agoPassed402748 ms$0.05