# Frontera Signal

> Rio Grande Valley, Texas construction data: free catalog, samples and series; paid calls via x402

- name: com.fronterasignal/frontera-signal
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 100/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.fronterasignal%2Ffrontera-signal
- tools: https://api.protogrid.dev/v1/servers/com.fronterasignal%2Ffrontera-signal/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "frontera-signal": {
      "type": "http",
      "url": "https://fronterasignal.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-97% +updated-16d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 100/100 (strong)

### protocol: 100 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- pass `protocol.list_ttl`: tool list is cacheable (ttlMs 3600000)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 873 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 2 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 873 tokens to load them all
- tool set hash: 955bfeb3e7130a306d24d4ab0cc2c65f
- tools last changed: 2026-10-04T02:30:24.752Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.fronterasignal/frontera-signal.svg)](https://protogrid.dev/servers/com.fronterasignal/frontera-signal)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-04 `how_to_pay` changed (inputSchema)
- 2026-10-04 `get_sample` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/com.fronterasignal%2Ffrontera-signal/changes

## Remotes

- https://fronterasignal.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.96825397)

## Packages

_none_

## Tools (4)

- `get_free_series`: Get the latest 4 weeks of a weekly Rio Grande Valley series for free: permits-weekly (building permits by city), cost-basket-weekly (building-input prices), absorption (housing supply), labor-ranges (labor and financing conditions) or calls (graded forecasts). Each row carries its week, as_of date and status. The full history is a paid endpoint; how_to_pay with series-<name> gives its URL and price.
- `get_sample`: Get a real answer from one paid endpoint for free, exactly as a paid call returns it, so you can check the fields, dates and coverage before you pay. Pass the endpoint key from list_endpoints, such as snapshot, projects or series-permits-weekly.
- `how_to_pay`: Get the exact URL to call for a paid answer, with its price, network and asset. Pass the endpoint key and the query parameters you plan to send; they go through the same free check the API runs before payment, so a query that would be refused or come back empty shows up here. This tool never calls the paid endpoint and never pays. Payment is x402: no account or API key, USDC on Base.
- `list_endpoints`: List every paid Frontera Signal endpoint before you spend anything. Covers Rio Grande Valley, Texas construction data: permits, building-input prices, housing supply, labor, commercial projects filed with the state, company track records, filed cost per square foot, material shelf prices and the weekly briefing. Each entry has the price per call in USDC, what the call returns, an example question, its parameters with valid values and a free sample URL. Free.