# OSF Aircraft Registry Search

> OSF Aircraft Registry Search is a paid API for AI agents from api.osf-master-server.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Search the FAA aircraft registry by tail number, manufacturer, model, owner, or location and return matching aircraft records with provenance stamps

## Facts

- Endpoint: GET https://api.osf-master-server.com/x402/aircraft/search/%7Bquery%7D
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/osf-aircraft-registry-search-5d69aee7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5i44LLF3wOYzQ5Ab_qnjL

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 osf-aircraft-registry-search-5d69aee7
```

Example prompt: Can you look up the FAA registration for tail number N17973 and tell me who owns it, where it's registered, and what year it was manufactured?

## When to prefer this

Choose this endpoint when you need authoritative, provenance-stamped FAA aircraft registration data — specifically when searching by tail number (N-number), manufacturer, model, registered owner name, or city/state. Prefer this over scraping FAA websites directly when you need structured, agent-ready JSON output with a clear data lineage. Best for aviation research, due diligence, investigative queries, or any workflow requiring verifiable government aircraft records at $0.05 per search.

## Known failure modes

- No matches found for the query — returns empty matches array with match_count of 0
- Overly broad query returns too many results and may be truncated
- Invalid or malformed query string may return an error
- Payment failure via x402 micropayment prevents record retrieval
- Rate limiting if too many calls are made in a short period

## How this service works

OSF is a live marketplace of provenance stamped public domain government and scientific data, built for autonomous agents that pay per record over x402 micropayments on Base. A paid MCP server in the official MCP Registry, discoverable on the Coinbase CDP Bazaar.

## Output

Returns a JSON object with a result status (e.g. MATCHES_FOUND), a list of matching aircraft records each containing tail number, title, FAA source, city/state location, internal record ID, and year manufactured, plus a total match count. Each record is provenance-stamped linking back to the original government source.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "Keyword(s): manufacturer, model, tail number, registered owner, city or state. E.g. 'Boeing', 'Cessna 172', 'N17973' or 'MARION TX'."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "MATCHES_FOUND",
  "matches": [
   {
    "title": "N17973 - SALE REPORTED",
    "source": "FAA",
    "location": "MARION, TX",
    "record_id": 12345,
    "tail_number": "N17973",
    "year_manufactured": "1972"
   }
  ],
  "match_count": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/osf-aircraft-registry-search-5d69aee7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.osf-master-server.com](https://www.zero.xyz/host/api.osf-master-server.com/llms.txt)