> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blitz-api.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Changelog

> Public — no API key required. Returns changelog entries newest-first: breaking changes, new features, improvements, fixes, deprecations, and announcements. Use `days` to limit to recent changes and `limit` to cap the number of entries (default 50).

<div style={{position:'absolute',width:'1px',height:'1px',padding:0,margin:'-1px',overflow:'hidden',clipPath:'inset(50%)',whiteSpace:'nowrap',border:0}}>
  > **Agents & LLMs**: a Markdown version of this page is available by appending `.md` to the URL, and the full documentation index is at [llms.txt](https://docs.blitz-api.ai/llms.txt).
</div>

<Callout icon="coin" color="blue">
  **Cost:** no cost
</Callout>

<Note>
  **Public endpoint.** No API key required — call it without the `x-api-key` header.
</Note>

Fetch the Blitz API changelog programmatically. Entries are returned newest-first and cover breaking changes, new features, improvements, fixes, deprecations, and announcements. Use it to surface release notes inside your own tools or to alert your team whenever an endpoint you depend on changes.

<Tip>
  Pass `days` to fetch only recent entries (e.g. `days=7` for the last week) and `limit` to cap how many you get back (default `50`). Each entry's `affected_endpoints` lists the routes that changed, and `type` categorizes the impact — one of `breaking`, `feature`, `improvement`, `fix`, `deprecation`, or `announcement`.
</Tip>


## OpenAPI

````yaml api-reference/v2.openapi.json GET /changelog
openapi: 3.1.0
info:
  title: Blitz API Reference
  version: 2.0.0
  description: >-
    Welcome to the Blitz API Reference.


    Use this interactive documentation to explore and test every v2 endpoint.
    Authentication is required via the `x-api-key` header.


    **Base URL**: `https://api.blitz-api.ai`


    **Rate limit**: 5 requests per second, per endpoint (all plans). Each
    endpoint has its own independent budget, so different endpoints don't share
    the limit.


    **Pricing**: All endpoints are unlimited on paid plans ($399+/mo). Free
    trial accounts receive 1,000 credits.
servers:
  - url: https://api.blitz-api.ai
    description: Production server
security: []
tags:
  - name: Account
    description: API key info and health check.
  - name: Waterfall ICP Search
    description: Priority-based cascade search — find the best-match contact at a company.
  - name: Employee Finder
    description: Browse all employees at a single company with filters.
  - name: Company Search
    description: Search companies by industry, size, location, and keywords.
  - name: Job Search
    description: Search job postings by role, location, and company firmographics.
  - name: People Enrichment
    description: Enrich contacts with verified emails, phones, and reverse lookups.
  - name: Company Enrichment
    description: Enrich companies and resolve domain ↔ LinkedIn URL.
  - name: Utilities
    description: Helper endpoints (current date/time).
  - name: Changelog
    description: >-
      Public feed of API changes — breaking changes, features, fixes, and
      announcements.
paths:
  /changelog:
    get:
      tags:
        - Changelog
      summary: Get the Blitz API changelog
      description: >-
        Public — no API key required. Returns changelog entries newest-first:
        breaking changes, new features, improvements, fixes, deprecations, and
        announcements. Use `days` to limit to recent changes and `limit` to cap
        the number of entries (default 50).
      operationId: getChangelog
      parameters:
        - in: query
          name: days
          required: false
          description: Only return entries from the last N days. Omit for the full history.
          schema:
            type: integer
            exclusiveMinimum: 0
            example: 7
        - in: query
          name: limit
          required: false
          description: Maximum number of entries to return. Defaults to 50.
          schema:
            type: integer
            default: 50
            exclusiveMinimum: 0
            example: 50
      responses:
        '200':
          description: Changelog entries, newest-first.
          content:
            application/json:
              schema:
                type: array
                description: Changelog entries, newest-first.
                items:
                  type: object
                  description: A single changelog entry.
                  required:
                    - date
                    - type
                    - title
                  properties:
                    date:
                      type: string
                      description: Publish date in UTC (YYYY-MM-DD).
                    type:
                      type: string
                      enum:
                        - breaking
                        - feature
                        - improvement
                        - fix
                        - deprecation
                        - announcement
                      description: Impact category of the change.
                    title:
                      type: string
                      description: Short headline for the change.
                    body:
                      type: string
                      description: Optional Markdown detail.
                    affected_endpoints:
                      type: array
                      description: >-
                        API routes affected by this change. Omitted or empty for
                        product announcements.
                      items:
                        type: string
                    links:
                      type: array
                      description: >-
                        External links related to the entry (docs, migration
                        guide, blog post).
                      items:
                        type: object
                        required:
                          - label
                          - url
                        properties:
                          label:
                            type: string
                          url:
                            type: string
                example:
                  - date: '2026-08-04'
                    type: breaking
                    title: People search now accepts `industry` as an array
                    body: >-
                      The `industry` filter now accepts a list of values.
                      Passing a single string still works.


                      See the migration guide.
                    affected_endpoints:
                      - /v2/search/people
                    links:
                      - label: Migration guide
                        url: https://docs.blitz-api.ai/changelog
      security: []

````