# aircraft-diligence

> aircraft-diligence is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-12).

Returns a 0-100 title risk score, risk rating, and clear-to-transact flag for a US-registered aircraft based on FAA registry data

## Facts

- Endpoint: GET https://payai.agentstools.dev/aircraft/diligence?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aircraft-diligence-66b1a3b6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DKpFevajx4CcOWdaS1dwo

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 aircraft-diligence-66b1a3b6
```

Example prompt: Before we finalize the purchase, can you run a title and airworthiness due-diligence check on tail number N801NN and tell me if it's clear to transact?

## When to prefer this

Use this endpoint when you need a fast, deterministic, structured risk signal for a US-registered aircraft prior to a transaction. It is ideal for pre-purchase due diligence workflows, fleet screening, or any automated pipeline that needs a rule-based (non-LLM) title risk score without the cost or latency of a certified title search. Prefer this over manual FAA registry lookups when you need structured signals, a risk score, and a clear-to-transact flag in a single call.

## Known failure modes

- Tail number not found in FAA registry — returns not-found error or empty result
- Invalid N-number format — may return a validation error
- Aircraft deregistered or cancelled — returns data reflecting deregistered status
- Serial number matches multiple aircraft — ambiguous result or requires tail number disambiguation
- FAA registry data lag — recently registered or deregistered aircraft may not reflect current status

## How this service works

Title and airworthiness due-diligence verdict for a US-registered aircraft from the public FAA Aircraft Registry. Give a tail number or serial and get a 0-100 title risk score, a low, medium, high or critical rating, a clear_to_transact flag, per-dimension signals, reasons and the cited registry fields. Deterministic, no LLM. A diligence signal, not a certified title search.

## Output

A structured JSON response containing: a 0-100 title risk score (higher = riskier), a categorical risk rating (low, medium, high, or critical), a boolean clear_to_transact flag, per-dimension risk signals (e.g. registration status, airworthiness certificate, liens), human-readable reasons for each risk flag, and the specific FAA registry fields cited as evidence. Deterministic and rule-based — not LLM-generated.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "tail": {
       "type": "string",
       "description": "US tail number / N-number, for example N801NN"
      },
      "serial": {
       "type": "string",
       "description": "Aircraft serial number (used if no tail is given)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aircraft-diligence-66b1a3b6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)