# Federal Register Nuclear Power & Materials Safety Rules Feed

> Federal Register Nuclear Power & Materials Safety Rules 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 nuclear power and materials safety since a given timestamp, each scored 1–10 for compliance impact, with effective dates and primary-source links.

## Facts

- Endpoint: GET https://oracles-production.up.railway.app/v1/reg-nuclear/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-nuclear-power-materials-safety-rules-feed-8c8dabb5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K5Iprkyt5kngusdy4FCyk

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-nuclear-power-materials-safety-rules-feed-8c8dabb5
```

Example prompt: Pull all Federal Register nuclear power and materials safety rule changes since 2025-01-01T00:00:00Z that score at least 7 out of 10 for compliance impact, and return up to 100 results.

## When to prefer this

Use this endpoint when you need structured, scored, time-bounded regulatory data specifically for nuclear power and nuclear materials safety from the Federal Register. Prefer it over general web search when you need machine-readable compliance impact scores, effective dates, and primary-source links for nuclear rules. Choose it over the LLM digest sibling when you need raw structured records rather than a synthesized narrative summary.

## Known failure modes

- Invalid or missing 'since' parameter returns a 400 or empty result set
- min_significance outside 1–10 range rejected by schema validation
- limit exceeding 500 returns a validation error
- Payment not included or insufficient USDC triggers a 402 response
- Network timeout if the Federal Register upstream is slow
- Empty array returned if no rules exist in the requested time window

## How this service works

Federal Register final & proposed rules affecting nuclear power & materials safety (Nuclear Regulatory Commission) since a timestamp — covering nuclear, reactor, radioactive, radiological, license amendment — 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), summary, compliance significance score (1–10), effective date, detection timestamp, primary-source URL for verification, and a structured detail object.

## 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-nuclear-power-materials-safety-rules-feed-8c8dabb5/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)