# FCC License Search (remote · fcc-license-search.krimskrams.xyz)

Search FCC radio licenses by company, call sign, or FRN; monitor status changes and snapshots.

- Trust score: 70/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `fcc-license-search.krimskrams.xyz`: 70/100 (this document), [markdown](https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search.md), [page](https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search)

## Channel facts

- Endpoint: `https://fcc-license-search.krimskrams.xyz/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 59/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 434 tokens (~62/item across 7 items; 7 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 77/100
  - Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the FCC License Search MCP server?

FCC License Search is a hosted endpoint at https://fcc-license-search.krimskrams.xyz/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http xyz-krimskrams-fcc-license-search 'https://fcc-license-search.krimskrams.xyz/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "xyz-krimskrams-fcc-license-search": {
      "url": "https://fcc-license-search.krimskrams.xyz/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "xyz-krimskrams-fcc-license-search": {
      "type": "http",
      "url": "https://fcc-license-search.krimskrams.xyz/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.xyz-krimskrams-fcc-license-search]
url = "https://fcc-license-search.krimskrams.xyz/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "xyz-krimskrams-fcc-license-search": {
      "type": "remote",
      "url": "https://fcc-license-search.krimskrams.xyz/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add xyz-krimskrams-fcc-license-search --url 'https://fcc-license-search.krimskrams.xyz/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  xyz-krimskrams-fcc-license-search:
    url: "https://fcc-license-search.krimskrams.xyz/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "xyz-krimskrams-fcc-license-search": {
      "Transport": "http",
      "Url": "https://fcc-license-search.krimskrams.xyz/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add xyz-krimskrams-fcc-license-search -t streamable-http -u 'https://fcc-license-search.krimskrams.xyz/mcp'
```

### Other

```json
{
  "mcpServers": {
    "xyz-krimskrams-fcc-license-search": {
      "type": "http",
      "url": "https://fcc-license-search.krimskrams.xyz/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-19 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-08 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-06 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-04 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (7)

### `fcc_search` (~99 tokens)

Look up FCC radio licences with q as a company or licensee name, call sign, or FRN. Optional service, status, and limit inputs filter the results. Receive up to 20 JSON records with callsign, licensee_name, frn, service, status, grant_date, expired_date, and cancellation_date.

Input parameters:

- `limit` (integer)
- `q` (string, required)
- `service`
- `status`

### `fcc_company` (~116 tokens)

Company enrichment: return the radio-licence footprint for a named company. The data contains FCC radio licences only. Receive matched licensee entities, every matching licence up to the selected limit, licence dates and status, summary counts for all matches, the soonest upcoming expiry, store coverage, and FCC source provenance for every block as JSON.

Input parameters:

- `company_name` (string, required)
- `include_expired` (boolean)
- `limit` (integer)
- `service`
- `state`
- `status`

### `fcc_changes` (~87 tokens)

Find FCC radio licence status changes since a date, filtered by frn, callsign, or service. Receive JSON records with usi, callsign, old_status, new_status, observed_date, and source_file. The since period is at most 31 days.

Input parameters:

- `callsign`
- `frn`
- `service`
- `since` (string, required)

### `fcc_stats` (~20 tokens)

Read free FCC ULS data statistics and ingest freshness.

### `fcc_coverage` (~21 tokens)

Read the current FCC ULS data coverage and provenance.

### `fcc_snapshots` (~19 tokens)

List the free FCC ULS snapshot catalog.

### `fcc_snapshot` (~72 tokens)

Download one FCC radio licence snapshot by slice_id from /v1/snapshots. Receive as_of, row_count, source, licence, and all rows with company name, call sign, FRN, service, status, grant, expiry, and cancellation dates as JSON.

Input parameters:

- `slice_id` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search#diagnostics

## Score history

- 2026-09-20: 70
- 2026-09-19: 70
- 2026-09-18: 69
- 2026-09-17: 69
- 2026-09-16: 68
- 2026-09-15: 68
- 2026-09-14: 68
- 2026-09-13: 67
- 2026-09-12: 67
- 2026-09-11: 66
- 2026-09-10: 66
- 2026-09-09: 65
- 2026-09-08: 65
- 2026-09-07: 64
- 2026-09-06: 64
- 2026-09-05: 63
- 2026-09-04: 63
- 2026-09-03: 62
- 2026-09-02: 62
- 2026-09-01: 61
- 2026-08-31: 61
- 2026-08-30: 61
- 2026-08-29: 60
- 2026-08-28: 60

## Common questions

### What is the FCC License Search MCP server?

FCC License Search is an MCP server listed in the public MCP registry as xyz.krimskrams/fcc-license-search. Search FCC radio licenses by company, call sign, or FRN; monitor status changes and snapshots. This page covers its hosted endpoint (https://fcc-license-search.krimskrams.xyz/mcp).

### Is the FCC License Search MCP server safe to use?

FCC License Search scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the FCC License Search MCP server expose?

FCC License Search exposes 7 tools: fcc_search, fcc_company, fcc_changes, fcc_stats, fcc_coverage, and 2 more. Their descriptions and schemas cost roughly 434 tokens of context every time the server is loaded.

### Does the FCC License Search MCP server require authentication?

No. We connected to FCC License Search without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the FCC License Search MCP server still maintained?

FCC License Search is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://fcc-license-search.krimskrams.xyz/mcp
- Repository: https://github.com/kramer-hans/krimskrams-product
- Website: https://fcc-license-search.krimskrams.xyz/
- Changelog RSS feed: https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search.xml
- Changelog JSON feed: https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search.json
- HTML version of this page: https://verifymcp.io/servers/xyz-krimskrams-fcc-license-search/fcc-license-search