# NuGet Package Release Change Tracker

> NuGet Package Release Change Tracker 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 new releases and breaking changes for .NET NuGet packages since a given timestamp, scored by significance (1-10)

## Facts

- Endpoint: GET https://oracles-production.up.railway.app/v1/nuget/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/nuget-package-release-change-tracker-d45535bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G1RKMXu-ZORUlAcPBbSFl

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 nuget-package-release-change-tracker-d45535bc
```

Example prompt: Can you check if the Newtonsoft.Json NuGet package has had any new releases or breaking changes since 2024-11-01T00:00:00Z, and only show me ones with a significance score of at least 7?

## When to prefer this

Use this endpoint when you need to monitor or audit .NET NuGet package releases and breaking changes with significance scoring. It is specifically designed for .NET/NuGet ecosystem dependency tracking, supports on-demand lookup of any NuGet package by name, and provides structured change events with semantic significance ratings — making it ideal for automated dependency health checks, CI/CD pipeline integrations, or agent workflows that need to surface only high-impact package changes.

## Known failure modes

- Unknown or misspelled package name — returns empty changes array or error
- Invalid ISO-8601 timestamp format — returns 400 validation error
- Requested package not yet tracked and live fetch fails — may return empty or partial results
- min_significance or limit out of allowed range — returns 400 validation error
- Payment not processed (x402) — returns 402 Payment Required
- Upstream NuGet API temporarily unavailable — may return 503 or empty results

## How this service works

New releases of tracked .NET NuGet packages (Newtonsoft.Json, Serilog, AutoMapper, Polly, and more) on NuGet (.NET) since a timestamp — each tagged new_release or breaking_change (major-version bump) with a 1-10 significance score. Answers "did a dependency in my .csproj / PackageReference ship a new or breaking version I should pin or upgrade?" Pass ?package=<name> for ANY .NET NuGet package on demand.

## Output

A JSON array of change events for the requested NuGet package(s), each containing: change type (new_release or breaking_change), title, summary, significance score (1-10), detected timestamp, effective date, source URL for verification, and entity ID. Also includes a total count and source label.

## 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"
      },
      "package": {
       "type": "string",
       "description": "Any NuGet (.NET) package name — resolved and fetched live if not already tracked"
      },
      "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/nuget-package-release-change-tracker-d45535bc/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)