ToolVet
59trust / 100

Distance Bearing

by Land Survey Screening in Weather & location

x402 APIPassing, checked 3 h ago

Great-circle distance (miles, km, feet, nautical miles) and initial compass bearing between two latitude/longitude points.

GET
https://land-survey.x402tookit.com/distance-bearing
Price
$0.02
per call in USDC
Uptime
56.3%
last 30 days
Response time
525 ms
669 ms slowest 5%
Last check
Passed
3 h ago, next in 3 h

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/distance-bearing

Each call costs $0.02 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/distance-bearing?lat1=40.6413&lat2=33.9416&lon1=-73.7781&lon2=-118.4085

Parameters

ParameterTypeRequiredDescription
lat1numberYesStart latitude
lat2numberYesEnd latitude
lon1numberYesStart longitude
lon2numberYesEnd longitude

Example response

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

{
  "asOf": "2026-10-11T03:48:04.513Z",
  "compass": "W",
  "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.",
  "feet": 13039179.2,
  "initialBearingDegrees": 273.84,
  "kilometers": 3974.342,
  "meters": 3974341.7,
  "miles": 2469.541,
  "nauticalMiles": 2145.973,
  "notChecked": [
    "terrain, roads or flight paths (straight line over a sphere)",
    "survey-grade accuracy (error up to about 0.5% from the spherical model)"
  ],
  "reasons": [
    "Great-circle distance on a spherical Earth (radius 6,371 km)."
  ],
  "reverseBearingDegrees": 65.87,
  "source": "computed locally",
  "summary": "2469.54 mi (3974.34 km), initial bearing 273.8° W.",
  "verdict": "COMPUTED"
}

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 'https://land-survey.x402tookit.com/distance-bearing?lat1=40.6413&lat2=33.9416&lon1=-73.7781&lon2=-118.4085'

# 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/distance-bearing?lat1=40.6413&lat2=33.9416&lon1=-73.7781&lon2=-118.4085' \
  | 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%2Fland-survey.x402tookit.com%2Fdistance-bearing
const res = await pay("https://land-survey.x402tookit.com/distance-bearing?lat1=40.6413&lat2=33.9416&lon1=-73.7781&lon2=-118.4085");
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.get("https://land-survey.x402tookit.com/distance-bearing?lat1=40.6413&lat2=33.9416&lon1=-73.7781&lon2=-118.4085")
    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
3 h agoPassed402525 ms$0.02
15 h agoPassed402590 ms$0.02
45 h agoExpected HTTP 402, got 530530134 ms-
3 days agoExpected HTTP 402, got 53053090 ms-
4 days agoExpected HTTP 402, got 53053086 ms-
Show 10 older checks
5 days agoExpected HTTP 402, got 530530154 ms-
5 days agoExpected HTTP 402, got 530530126 ms-
5 days agoExpected HTTP 402, got 530530204 ms-
5 days agoExpected HTTP 402, got 530530167 ms-
5 days agoPassed402504 ms$0.02
5 days agoPassed402506 ms$0.02
6 days agoPassed402669 ms$0.02
6 days agoPassed402580 ms$0.02
6 days agoPassed402545 ms$0.02
6 days agoPassed402486 ms$0.02