# Federal Register Medical Device Regulatory Changes Feed

> Federal Register Medical Device 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 medical devices 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-medical-devices/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-medical-device-regulatory-changes-feed-dff60ff5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U4wVCnPr0TKeS1NI5G2Nu

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-medical-device-regulatory-changes-feed-dff60ff5
```

Example prompt: Pull all Federal Register medical device rules detected since 2025-01-01T00:00:00Z that have a compliance significance score of at least 7, and show me the titles, effective dates, and source links — limit to 50 results.

## When to prefer this

Use this endpoint when you need machine-readable, scored Federal Register regulatory changes specifically scoped to medical devices, with filtering by recency and compliance importance. Prefer it over general Federal Register search when you need pre-scored significance ratings, structured effective dates, and direct source links without manual parsing. Ideal for compliance automation workflows, regulatory monitoring dashboards, or alerting systems that need to detect and triage new medical device rules automatically.

## Known failure modes

- Invalid or missing 'since' parameter returns a 400 with a validation error
- min_significance or limit out of range (e.g. limit > 500 or min_significance < 1) returns 400
- No matching rules in the requested window returns count=0 with an empty changes array
- Payment not provided or failed returns 402 Payment Required
- Service temporarily unavailable returns 503 or 500

## How this service works

Federal Register final & proposed rules affecting medical devices (Food And Drug Administration) since a timestamp — covering medical device, premarket, 510(k), in vitro diagnostic, implant — each scored 1-10 for compliance impact, with effective dates and primary-source links.

## Output

A JSON object containing a count of matched changes and an array of regulatory change records, each with a title, type (final/proposed), plain-language summary, compliance significance score (1–10), effective date, detected-at timestamp, primary Federal Register source URL, and a unique entity ID for further lookup.

## 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-medical-device-regulatory-changes-feed-dff60ff5/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)