# TailTrace Aircraft Identification by N-Number

> TailTrace Aircraft Identification by N-Number is a paid API for AI agents from tailtrace-x402-prod.simonwakelin.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-19).

Resolve an FAA N-number to a normalized aircraft identity record including registration, manufacturer, model, and serial number

## Facts

- Endpoint: GET https://tailtrace-x402-prod.simonwakelin.workers.dev/v1/aircraft/:n_number/identify?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tailtrace-aircraft-identification-by-n-number-04bc666b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9SvoXr2AJX9Lyaey9MjBA

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 tailtrace-aircraft-identification-by-n-number-04bc666b
```

Example prompt: Can you look up what aircraft N4873K is — I need the manufacturer, model, and serial number from the FAA registration?

## When to prefer this

Use this endpoint when you need authoritative, normalized aircraft identity data from an FAA N-number lookup — particularly useful for aviation agents, fleet managers, or due-diligence workflows that need manufacturer, model, and serial data in a structured format without scraping FAA search portals manually. Prefer this over raw FAA web scraping when you need clean, machine-readable identity fields returned per-aircraft at low per-call cost.

## Known failure modes

- Invalid N-number format (must match pattern ^N[0-9]{1,5}[A-HJ-NP-Z]{0,2}$) returns a validation error
- N-number not found in FAA records returns a not-found response
- Foreign-registered or military aircraft not in FAA database will not return results
- Payment failure (x402 protocol) prevents the query from executing
- Temporary unavailability of upstream FAA data source may return partial or no results

## How this service works

TailTrace is an evidence-first aircraft intelligence API that resolves physical aircraft identity and connects registration history, operator, passenger capacity, registered-base, safety, maintenance and regulatory evidence with source provenance and confidence. Search by aircraft registration or N-number. Coverage includes the United States and expanding European datasets. Resolve an aircraft registration or N-number to the physical aircraft identity and return evidence-backed identity information with provenance and confidence.

## Output

Returns a normalized identity record for the queried aircraft including FAA registration status, manufacturer name, aircraft model, serial number, and any supporting identity evidence available from FAA records.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "n_number"
     ],
     "properties": {
      "n_number": {
       "type": "string",
       "pattern": "^N[0-9]{1,5}[A-HJ-NP-Z]{0,2}$",
       "description": "FAA N-number, for example N10004."
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tailtrace-aircraft-identification-by-n-number-04bc666b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tailtrace-x402-prod.simonwakelin.workers.dev](https://www.zero.xyz/host/tailtrace-x402-prod.simonwakelin.workers.dev/llms.txt)