# io.github.cyanheads/faa-aircraft-registry-mcp-server (remote · faa-aircraft-registry.caseyjhand.com)

Offline, keyless lookup of the US civil aircraft registry — decode N-numbers, search records.

- Trust score: 69/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `faa-aircraft-registry.caseyjhand.com`: 69/100 (this document), [markdown](https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry.md), [page](https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry)
- npm · `@cyanheads/faa-aircraft-registry-mcp-server`: 35/100, [markdown](https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/cyanheads-faa-aircraft-registry-mcp-server.md), [page](https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/cyanheads-faa-aircraft-registry-mcp-server)

## Channel facts

- Endpoint: `https://faa-aircraft-registry.caseyjhand.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.7`

## 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 2026-08-03.

- **Endpoint Security**: 66/100
  - 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 5 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 is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 68/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1224 tokens (~244/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http cyanheads-faa-aircraft-registry-mcp-server https://faa-aircraft-registry.caseyjhand.com/mcp
```

### Codex

```toml
[mcp_servers.cyanheads-faa-aircraft-registry-mcp-server]
url = "https://faa-aircraft-registry.caseyjhand.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cyanheads-faa-aircraft-registry-mcp-server": {
      "type": "remote",
      "url": "https://faa-aircraft-registry.caseyjhand.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add cyanheads-faa-aircraft-registry-mcp-server --url https://faa-aircraft-registry.caseyjhand.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  cyanheads-faa-aircraft-registry-mcp-server:
    url: "https://faa-aircraft-registry.caseyjhand.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "cyanheads-faa-aircraft-registry-mcp-server": {
      "type": "http",
      "url": "https://faa-aircraft-registry.caseyjhand.com/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.

### 2026-08-03 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 68, +2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 64, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 64)

First indexed and scored.

## MCP tools (5)

### `faa_lookup_registration` (~202 tokens)

faa-aircraft-registry-mcp-server: lookup registration

Decode one US civil aircraft N-number to its full registration record — aircraft make/model, engine, year manufactured, airworthiness, registration status, Mode S (ICAO 24-bit) code, and registered owner (when owner-PII redaction is off). One call resolves the relational join and decodes every coded field. Accepts "N12345" or "12345" (the leading N is optional). Returns ownerRedacted: true when owner details were withheld. A number that is known but inactive (deregistered or reserved) is not found here — use faa_get_registration_status for the cross-file status answer.

Input parameters:

- `nNumber` (string, required): US registration N-number to decode. Accepts "N12345" or "12345" (leading N optional). Shape: 1–5 characters — a leading digit 1–9, then digits, optionally ending in 1–2 letters (I and O are unused).

Output parameters:

- `aircraftType` (object): Aircraft type (e.g. Fixed-wing single-engine) as code + label.
- `airworthinessClass` (object): Airworthiness classification (Standard, Experimental, …) from CERTIFICATION char 1, as code + label.
- `airworthinessDate` (string): Airworthiness certificate date (YYYY-MM-DD).
- `approvedOperationsRaw` (string): Raw FAA approved-operations sub-code string; interpretation varies by airworthiness class.
- `certIssueDate` (string): Certificate issue date (YYYY-MM-DD).
- `engineMake` (string): Engine manufacturer name, resolved from the reference table.
- `engineManufacturerModelCode` (string): 5-char engine manufacturer/model code (join key into the engine reference table).
- `engineModel` (string): Engine model name, resolved from the reference table.
- `engineType` (object): Engine type (e.g. Reciprocating, Turbo-fan) as code + label.
- `expirationDate` (string): Registration expiration date (YYYY-MM-DD).
- `fractionalOwner` (boolean): True when the aircraft is under fractional ownership.
- `kitManufacturer` (string): Kit manufacturer (amateur-built aircraft); often blank.
- `kitModel` (string): Kit model (amateur-built aircraft); often blank.
- `lastActionDate` (string): Date of the last registration action (YYYY-MM-DD).
- `make` (string): Aircraft manufacturer name, resolved from the reference table.
- `manufacturerModelCode` (string): 7-char manufacturer/model/series code (join key into the aircraft reference table).
- `modeSCodeHex` (string): Mode S code in hex — the ICAO 24-bit address used to key live flight-tracking data.
- `modeSCodeOctal` (string): Mode S transponder code in octal.
- `model` (string): Aircraft model name, resolved from the reference table.
- `nNumber` (string): Normalized N-number without the leading "N" (the registry storage form).
- `nNumberDisplay` (string): N-number in conventional display form, with the leading "N".
- `owner` (object): Registrant name/address; present only when redaction is off.
- `ownerRedacted` (boolean): True when owner name/address were withheld from this payload by the redaction gate.
- `region` (object): Registrant's FAA region as code + label.
- `serialNumber` (string): Manufacturer serial number.
- `status` (object): Registration status (e.g. Valid registration) as code + label.
- `uniqueId` (string): FAA unique aircraft identifier.
- `yearManufactured` (number): Year the aircraft was manufactured; often blank (permissible field).

### `faa_get_aircraft_type` (~126 tokens)

faa-aircraft-registry-mcp-server: get aircraft type

Decode a 7-character FAA manufacturer/model/series code to aircraft specifications from the reference table — manufacturer, model, aircraft category, aircraft type, engine type, number of engines, number of seats, weight class, cruise speed, and type-certificate data sheet/holder. Use faa_search_aircraft_types first to discover a code by manufacturer or model name.

Input parameters:

- `code` (string, required): Manufacturer/model/series code (e.g. "2072714") — 6–7 uppercase alphanumeric characters, usually 7. Discover codes via faa_search_aircraft_types.

Output parameters:

- `aircraftType` (object): Aircraft type as code + label.
- `builderCertification` (object): Builder certification (Type Certificated, Not Type Certificated, Light Sport) as code + label.
- `category` (object): Aircraft category (Land, Sea, Amphibian) as code + label.
- `code` (string): The 7-char manufacturer/model/series code.
- `cruiseSpeedMph` (number): Cruise speed in mph; often blank (permissible field).
- `engineType` (object): Engine type as code + label.
- `manufacturer` (string): Aircraft manufacturer name.
- `model` (string): Aircraft model name.
- `numberOfEngines` (number): Number of engines; may be blank on the reference record.
- `numberOfSeats` (number): Number of seats; may be blank on the reference record.
- `typeCertificateDataHolder` (string): Type-certificate data holder.
- `typeCertificateDataSheet` (string): Type-certificate data sheet identifier.
- `weightClass` (string): Weight class as the literal FAA string (e.g. "CLASS 1").

### `faa_search_registrations` (~301 tokens)

faa-aircraft-registry-mcp-server: search registrations

Search active US civil aircraft registrations by owner name, make/model, state, aircraft type, or Mode S (hex) code. Full-text search over the local registry index; returns decoded summaries with N-numbers to drill into via faa_lookup_registration. At least one filter is required. Owner-name search is unavailable when this deployment redacts owner PII — search by make/model, state, aircraft type, or Mode S code instead. Every response reports totalCount (all matches, not just this page); when more remain, it returns nextOffset — pass it back as offset to page forward.

Input parameters:

- `aircraftType` (string): Aircraft type code to match exactly (e.g. "4" for fixed-wing single-engine).
- `limit` (integer): Maximum number of results to return (1–200, default 25).
- `makeModel` (string): Aircraft make and/or model to match (full-text).
- `modeSCode` (string): Mode S code in hex to match exactly (ICAO 24-bit address).
- `offset` (integer): Zero-based index of the first result to return — pass the nextOffset from a previous response, with identical filters, to page forward (default 0).
- `ownerName` (string): Registrant name to match (full-text). Rejected when owner-PII redaction is on.
- `state` (string): Two-letter state/territory abbreviation (exact match).

Output parameters:

- `cap` (number): The limit that was applied (present only when truncated is set).
- `nextOffset` (number): Offset to request the next page; absent when this page reached the end of the matches.
- `notice` (string): Guidance when no registrations matched, or when more matches remain.
- `registrations` (array): Matching registration summaries for this page (up to limit).
- `shown` (number): Number of results on this page (present only when truncated is set).
- `totalCount` (number): Total registrations matching the filters, across all pages. Always present.
- `truncated` (boolean): Present and true only when matches remain beyond this page.

### `faa_search_aircraft_types` (~225 tokens)

faa-aircraft-registry-mcp-server: search aircraft types

Search the FAA aircraft reference table by manufacturer/model name (full-text), aircraft type code, or category code to discover 7-character manufacturer/model/series codes and browse specifications. Use this before faa_get_aircraft_type to find a code by name. At least one filter is required. Every response reports totalCount (all matches, not just this page); when more remain, it returns nextOffset — pass it back as offset to page forward.

Input parameters:

- `aircraftType` (string): Aircraft type code to match exactly (e.g. "6" for rotorcraft).
- `category` (string): Aircraft category code to match exactly (1 Land, 2 Sea, 3 Amphibian).
- `limit` (integer): Maximum number of results to return (1–200, default 25).
- `offset` (integer): Zero-based index of the first result to return — pass the nextOffset from a previous response, with identical filters, to page forward (default 0).
- `query` (string): Manufacturer and/or model name to match (full-text).

Output parameters:

- `aircraftTypes` (array): Matching aircraft-reference summaries for this page (up to limit).
- `cap` (number): The limit that was applied (present only when truncated is set).
- `nextOffset` (number): Offset to request the next page; absent when this page reached the end of the matches.
- `notice` (string): Guidance when no aircraft types matched, or when more matches remain.
- `shown` (number): Number of results on this page (present only when truncated is set).
- `totalCount` (number): Total aircraft types matching the filters, across all pages. Always present.
- `truncated` (boolean): Present and true only when matches remain beyond this page.

### `faa_get_registration_status` (~198 tokens)

faa-aircraft-registry-mcp-server: get registration status

Resolve registration and airworthiness status for a US civil aircraft N-number across all three status files — active (MASTER), deregistered (DEREG), and reserved (RESERVED) — in priority order, returning a definitive recordType. Use this (rather than faa_lookup_registration) when a number may be inactive: it returns "deregistered" or "reserved" for a known-but-inactive number instead of a not-found. A number that was never issued returns recordType "unknown" — a valid, informative answer, not an error. Accepts "N12345" or "12345".

Input parameters:

- `nNumber` (string, required): US registration N-number to resolve. Accepts "N12345" or "12345" (leading N optional). Shape: 1–5 characters — a leading digit 1–9, then digits, optionally ending in 1–2 letters (I and O are unused).

Output parameters:

- `airworthinessClass` (object): Airworthiness classification as code + label (active records).
- `airworthinessDate` (string): Airworthiness certificate date, YYYY-MM-DD (active records).
- `cancelDate` (string): Cancellation date, YYYY-MM-DD (deregistered records).
- `certIssueDate` (string): Certificate issue date, YYYY-MM-DD (active records).
- `expirationDate` (string): Registration expiration date, YYYY-MM-DD (active records).
- `expirationNoticeDate` (string): Date an expiration notice was sent, YYYY-MM-DD (reserved records).
- `manufacturerModelCode` (string): 7-char manufacturer/model/series code (deregistered records).
- `modeSCodeHex` (string): Mode S code in hex / ICAO 24-bit address (deregistered records).
- `nNumber` (string): Normalized N-number without the leading "N".
- `nNumberDisplay` (string): N-number with the leading "N" for display.
- `nNumberForChange` (string): The N-number this reservation changes to/from (reserved records).
- `purgeDate` (string): Scheduled purge date, YYYY-MM-DD (reserved records).
- `recordType` (string): Which file the number resolved in: active (MASTER), deregistered (DEREG), reserved (RESERVED), or unknown (none).
- `reserveDate` (string): Date the number was reserved, YYYY-MM-DD (reserved records).
- `serialNumber` (string): Manufacturer serial number (deregistered records).
- `status` (object): Registration/cancellation status as code + label (active and deregistered records).
- `typeReservation` (object): Type of reservation as code + label (reserved records).

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry#diagnostics

## Score history

- 2026-08-03: 69
- 2026-08-02: 68
- 2026-08-01: 68
- 2026-07-31: 68
- 2026-07-30: 66
- 2026-07-29: 66
- 2026-07-28: 65
- 2026-07-27: 64
- 2026-07-26: 64

## Links

- Remote endpoint: https://faa-aircraft-registry.caseyjhand.com/mcp
- Repository: https://github.com/cyanheads/faa-aircraft-registry-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry/changelog.json
- HTML version of this page: https://verifymcp.io/servers/cyanheads-faa-aircraft-registry-mcp-server/faa-aircraft-registry