# Federal Register Aviation Regulatory Changes Feed

> Federal Register Aviation Regulatory Changes Feed is a paid API for AI agents from oracles-production.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns Federal Register final and proposed rules for aviation and aircraft safety since a given timestamp, each scored 1-10 for compliance impact with effective dates and source links

## Facts

- Endpoint: GET https://oracles-production.up.railway.app/v1/reg-aviation/changes
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/federal-register-aviation-regulatory-changes-feed-0d55bca8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DeV5R5WvB4LcKqulJTE_9

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 federal-register-aviation-regulatory-changes-feed-0d55bca8
```

Example prompt: Pull all Federal Register aviation and aircraft safety rule changes since 2025-01-01T00:00:00Z with a significance score of at least 7, and show me up to 50 results with their effective dates and source links.

## When to prefer this

Use this endpoint when you need structured, scored, and timestamped aviation regulatory change data from the Federal Register with compliance impact ratings — ideal for compliance monitoring agents, legal teams tracking FAA rulemaking, or automated alerting systems that need to filter by significance threshold. Prefer this over raw Federal Register scraping when you need pre-scored impact assessments and incremental polling via 'since' timestamps.

## Known failure modes

- Invalid or missing 'since' parameter returns a 400 error
- 'min_significance' outside 1-10 range returns a 400 validation error
- 'limit' outside 1-500 range returns a 400 validation error
- Payment not provided or insufficient returns a 402 Payment Required
- No matching regulations in the time window returns count 0 with empty changes array
- Federal Register source temporarily unavailable may return stale or empty results

## How this service works

Federal Register final & proposed rules affecting aviation & aircraft safety (Federal Aviation Administration) since a timestamp — covering airworthiness, aircraft, pilot, drone, unmanned — each scored 1-10 for compliance impact, with effective dates and primary-source links.

## Output

A JSON object containing a count of matching changes and an array of regulatory change records, each with a title, type (final/proposed rule), plain-English summary, compliance significance score (1-10), effective date, detection timestamp, entity ID, and a direct link to the primary Federal Register source for verification.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 500,
       "minimum": 1
      },
      "since": {
       "type": "string",
       "format": "date-time",
       "description": "Only changes detected after this ISO-8601 instant"
      },
      "min_significance": {
       "type": "integer",
       "maximum": 10,
       "minimum": 1,
       "description": "Keep only changes scored at least this"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "count": {
       "type": "integer"
      },
      "source": {
       "type": "string"
      },
      "changes": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "type": {
          "type": "string"
         },
         "title": {
          "type": "string"
         },
         "detail": {
          "type": "object"
         },
         "summary": {
          "type": "string"
         },
         "entityId": {
          "type": "string"
         },
         "sourceUrl": {
          "type": [
           "string",
           "null"
          ],
          "description": "Primary-source link for verification"
         },
         "detectedAt": {
          "type": "string",
          "format": "date-time"
         },
         "significance": {
          "type": "integer",
          "maximum": 10,
          "minimum": 1
         },
         "effectiveDate": {
          "type": [
           "string",
           "null"
          ]
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/federal-register-aviation-regulatory-changes-feed-0d55bca8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from oracles-production.up.railway.app](https://www.zero.xyz/host/oracles-production.up.railway.app/llms.txt)