# GovParse FCC ULS License Search

> GovParse FCC ULS License Search is a paid API for AI agents from api.govparse.io, paid per call via x402, $1.25/call, status unknown (last checked 2026-09-14).

Search FCC Universal Licensing System license transactions by licensee, call sign, radio service, geography, status, and date to identify new or modified wireless buildouts.

## Facts

- Endpoint: GET https://api.govparse.io/v1/fcc/licenses/search
- Price: $1.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/govparse-fcc-uls-license-search-cef0a697
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PSsByzIK8psJ_iUXewdUs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability govparse-fcc-uls-license-search-cef0a697
```

Example prompt: Find all new FCC microwave licenses granted to Crown Castle in Texas since July 1, 2026 — show me active licenses sorted by grant date descending, up to 50 results.

## When to prefer this

Choose this endpoint when you need to identify wireless spectrum activity from FCC public records — specifically new license grants, modifications, or status changes across microwave, land-mobile, paging, or broadcast-aux services. It is the right choice for infrastructure buildout intelligence, competitive monitoring of spectrum acquisitions, regulatory due diligence on a specific FRN or call sign, and geographically scoped wireless license lookups. Prefer it over generic FCC web searches when you need structured, filterable, entity-resolved license data with date-range filtering.

## Known failure modes

- No results returned when company name spelling or punctuation doesn't match FCC records — try shorter name fragments
- Invalid radio service or status codes return empty results or validation errors
- Date format not in YYYY-MM-DD causes parsing failure
- Requesting more than 100 rows (cap limit) returns an error
- FRN not found in ULS returns empty result set
- Rate limiting or payment failure (x402) if USDC balance is insufficient

## How this service works

Who just got a new or modified FCC wireless license (a buildout tell)? Search the FCC ULS license transactions (microwave, land-mobile private/commercial, paging, broadcast-aux) by licensee company, call sign, radio_service, service_group, state, city, status, applicant_type, FRN, grant date (granted_since), or last-action date (since). Returns the license, its entity-resolved licensee, radio service, status, and dates. FCC public-domain records.

## Output

Returns a paginated list of FCC ULS license records matching the query, each including the call sign, radio service code and name, service group, license status, licensee company name with entity-resolved UUID, premise city and state, grant date, and last action date. Results are sorted by the specified field and honor limit/offset for pagination.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [],
   "properties": {
    "frn": {
     "type": "string",
     "examples": [
      "0004254223"
     ],
     "description": "FCC Registration Number(s), CSV."
    },
    "city": {
     "type": "string",
     "examples": [
      "Dallas"
     ],
     "description": "Premise city fragment."
    },
    "sort": {
     "type": "string",
     "examples": [
      "grant_date:desc"
     ],
     "description": "grant_date | last_action_date | call_sign :asc|:desc. Default last_action_date:desc."
    },
    "limit": {
     "type": "integer",
     "examples": [
      25
     ],
     "description": "Max rows (default 25, cap 100)."
    },
    "since": {
     "type": "string",
     "examples": [
      "2026-07-01"
     ],
     "description": "Last-action date on/after this date (YYYY-MM-DD) — recent transactions."
    },
    "state": {
     "type": "string",
     "examples": [
      "TX"
     ],
     "description": "Premise state code(s), CSV."
    },
    "offset": {
     "type": "integer",
     "examples": [
      0
     ],
     "description": "Rows to skip."
    },
    "status": {
     "type": "string",
     "examples": [
      "A"
     ],
     "description": "License status code(s), CSV (A = active)."
    },
    "company": {
     "type": "string",
     "examples": [
      "Crown Castle"
     ],
     "description": "Licensee company/agency name — suffix/punctuation-insensitive."
    },
    "call_sign": {
     "type": "string",
     "examples": [
      "WQGR685"
     ],
     "description": "Call sign(s), CSV."
    },
    "entity_id": {
     "type": "string",
     "examples": [
      "b7f3e2d1-4a5c-4e6f-8a9b-0c1d2e3f4a5b"
     ],
     "description": "Resolved licensee entity UUID (pivots to business360)."
    },
    "granted_since": {
     "type": "string",
     "examples": [
      "2026-07-01"
     ],
     "description": "Grant date on/after this date (YYYY-MM-DD) — surfaces new license grants."
    },
    "radio_service": {
     "type": "string",
     "examples": [
      "MW"
     ],
     "description": "FCC radio service code(s), CSV (e.g. MW microwave, IG industrial/business, PW public safety)."
    },
    "service_group": {
     "type": "string",
     "examples": [
      "microwave"
     ],
     "description": "microwave | land-mobile-private | land-mobile-commercial | paging | land-mobile-broadcast-aux (CSV)."
    },

… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/govparse-fcc-uls-license-search-cef0a697/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.govparse.io](https://www.zero.xyz/host/api.govparse.io/llms.txt)