ToolVet
75trust / 100

Series Absorption

by Frontera Signal in Markets & finance

x402 APIPassing, checked 4 h ago

Use when you need housing supply for the McAllen-Edinburg-Mission and Brownsville-Harlingen metros (months of supply, inventory, days on market, homes sold) by week, to judge whether the market is oversupplied before building, lending or buying.

GET
https://fronterasignal.com/api/v1/series/absorption
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
560 ms
1.1 s slowest 5%
Last check
Passed
4 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://fronterasignal.com/api/v1/series/absorption

Each call costs $0.05 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.

GET https://fronterasignal.com/api/v1/series/absorption?from=2026-W30&to=2026-W38

Parameters

ParameterTypeRequiredDescription
fromstringNoISO week YYYY-Www
tostringNoISO week YYYY-Www

Example response

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

{
  "fields": [
    "week_id",
    "geo",
    "metric",
    "value",
    "as_of",
    "source",
    "freshness"
  ],
  "rows": [
    {
      "as_of": "2026-01",
      "freshness": "stale",
      "geo": "McAllen-Edinburg-Mission",
      "metric": "months_inventory",
      "source": "Frontera Signal",
      "value": "9.3",
      "week_id": "2026-W30"
    }
  ],
  "series": "absorption"
}

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://fronterasignal.com/api/v1/series/absorption?from=2026-W30&to=2026-W38'

# 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://fronterasignal.com/api/v1/series/absorption?from=2026-W30&to=2026-W38' \
  | 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%2Ffronterasignal.com%2Fapi%2Fv1%2Fseries%2Fabsorption
const res = await pay("https://fronterasignal.com/api/v1/series/absorption?from=2026-W30&to=2026-W38");
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://fronterasignal.com/api/v1/series/absorption?from=2026-W30&to=2026-W38")
    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
4 h agoPassed4021.2 s$0.05
8 h agoPassed402560 ms$0.05
13 h agoPassed402584 ms$0.05
18 h agoPassed402123 ms$0.05
22 h agoPassed402644 ms$0.05
Show 10 older checks
27 h agoPassed402684 ms$0.05
30 h agoPassed402550 ms$0.05
35 h agoPassed4021.1 s$0.05
39 h agoPassed402175 ms$0.05
43 h agoPassed402647 ms$0.05
2 days agoPassed402488 ms$0.05
2 days agoPassed402593 ms$0.05
2 days agoPassed402649 ms$0.05
3 days agoPassed40271 ms$0.05
3 days agoPassed402611 ms$0.05

History

11 Oct 2026Price changed from $0.25 to $0.05