---
title: "Compare two exact npm or PyPI package versions"
method: GET
path: "/api/v1/packages/{registry}/{name}/advisory"
---

# Compare two exact npm or PyPI package versions

`GET /api/v1/packages/{registry}/{name}/advisory`

## Request

- Base URL: `https://factreason.com`
- URL: `https://factreason.com/api/v1/packages/{registry}/{name}/advisory`
- Auth: HTTP bearer

## Path parameters

- `registry` 'npm' | 'pypi', required
- `name` string, required

## Query parameters

- `from` string, required
- `to` string, required

## Response `200`

Authorized advisory or an unbilled miss

## Other responses

- `402`: Payment required; contains requirements only, never advisory data

---

[API](https://skmtc.dev/factreason/apis/factreason-agent-api.md) · [All operations](https://skmtc.dev/factreason/apis/factreason-agent-api/llms.txt) · [OpenAPI document](https://skmtc.dev/factreason/apis/factreason-agent-api/revisions/dcf95bb905ea?raw)