Companies
by Frontera Signal in Company & people data
Use to vet a developer, owner, architecture firm or trade contractor in the Rio Grande Valley, Texas: projects filed since late 2024 (count, total and largest cost, cities, dates, newest projects) and state trade licenses held by the business (A/C, electrical, sign, elevator), current or expired. Pass part of the name (3+ characters). No match is a free 404. Example: "How many projects has this developer filed in the Valley since 2024, and how large was the biggest one?"
https://fronterasignal.com/api/v1/companies- Price
- $0.02
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 628 ms
- 848 ms slowest 5%
- Last check
- Passed
- 22 min ago, next in 7 min
Reliability
Status and outage history · Atom feed · Watch with other listings
How to call it
GET https://fronterasignal.com/api/v1/companies
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.
GET https://fronterasignal.com/api/v1/companies?name=independent+school+districtParameters
| Parameter | Type | Required | Description |
|---|---|---|---|
name | string | Yes | Part of an owner or design-firm name, case-insensitive. |
Example response
The provider's example. We can't check it without paying.
Example response, 68 lines
{
"as_of": "2026-10-04",
"cadence": "weekly",
"companies": [
{
"cities": [
"Weslaco"
],
"counties": [
"Hidalgo"
],
"first_seen": "2025-05-09",
"largest_project_cost_usd": 2216000,
"last_seen": "2025-12-09",
"latest_projects": [
{
"address": "3601 N. Mile 5 1/2 W.",
"city": "Weslaco",
"county": "Hidalgo",
"design_firm": "Sam Garcia Architects",
"estimated_cost_usd": 100000,
"estimated_end": "2026-02-01",
"estimated_start": "2025-12-01",
"facility": "Joe Calvillo Cate Center",
"funding": "public",
"id": "FSP-d28b5d37e3",
"name": "Weslaco ISD-Security Vestibule at Joe Calvillo Cate Center",
"owner": "Weslaco Independent School District",
"registered": "2025-12-09",
"scope_of_work": "New Storefront Installation enclosing a new security vestibule within the existing lobby area.",
"source": "public state construction filing",
"square_feet": 100,
"status": "Review Complete",
"type_of_work": "Renovation/Alteration",
"zip": "78596"
}
],
"licenses": [],
"name": "Weslaco Independent School District",
"project_count": 9,
"projects_with_cost": 9,
"role": "owner",
"total_estimated_cost_usd": 3487542
}
],
"coverage": {
"counties": [
"Cameron",
"Hidalgo",
"Starr",
"Willacy"
],
"registered_since": "2024-10-01"
},
"dataset": "companies",
"disclaimer": "Every value carries as_of, age_days, cadence and stale (weekly measures go stale after 14 days, monthly measures after …",
"license_note": "licenses are state trade licenses held by the business: air conditioning, electrical, electrical sign, elevator and app…",
"licenses_as_of": "2026-09-19",
"licenses_source": "state license records",
"matched_names": 10,
"note": "Public-record activity: projects filed with the state where the company is the owner or the design firm, up to 10 names…",
"publisher": "Frontera Signal",
"query": {
"name": "independent school district"
},
"source": "public state construction filing",
"status_checked": "2026-10-06"
}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://fronterasignal.com/api/v1/companies?name=independent+school+district'
# 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/companies?name=independent+school+district' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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%2Ffronterasignal.com%2Fapi%2Fv1%2Fcompanies
const res = await pay("https://fronterasignal.com/api/v1/companies?name=independent+school+district");
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://fronterasignal.com/api/v1/companies?name=independent+school+district")
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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 22 min ago | Passed | 402 | 634 ms | $0.02 |
| 5 h ago | Passed | 402 | 729 ms | $0.02 |
| 10 h ago | Passed | 402 | 710 ms | $0.02 |
| 15 h ago | Passed | 402 | 602 ms | $0.02 |
| 19 h ago | Passed | 402 | 155 ms | $0.02 |
Show 10 older checks
| 24 h ago | Passed | 402 | 628 ms | $0.02 |
| 28 h ago | Passed | 402 | 701 ms | $0.02 |
| 32 h ago | Passed | 402 | 631 ms | $0.02 |
| 36 h ago | Passed | 402 | 787 ms | $0.02 |
| 40 h ago | Passed | 402 | 537 ms | $0.02 |
| 45 h ago | Passed | 402 | 467 ms | $0.02 |
| 2 days ago | Passed | 402 | 185 ms | $0.02 |
| 2 days ago | Passed | 402 | 255 ms | $0.02 |
| 2 days ago | Passed | 402 | 848 ms | $0.02 |
| 3 days ago | Passed | 402 | 630 ms | $0.02 |