You can access the OpenAPI Change Preflight | API Contract Checks programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1import { ApifyClient } from 'apify-client';
2
3// Initialize the ApifyClient with your Apify API token
4// Replace the '<YOUR_API_TOKEN>' with your token
5const client = new ApifyClient({
6    token: '<YOUR_API_TOKEN>',
7});
8
9// Prepare Actor input
10const input = {
11    "previousSpec": `{
12  "openapi": "3.1.2",
13  "info": {
14    "title": "Synthetic Orders API",
15    "version": "1.0"
16  },
17  "paths": {
18    "/orders": {
19      "get": {
20        "parameters": [
21          {
22            "name": "state",
23            "in": "query",
24            "required": false,
25            "schema": {
26              "type": "string",
27              "enum": [
28                "open",
29                "closed"
30              ]
31            }
32          }
33        ],
34        "responses": {
35          "200": {
36            "description": "Order count",
37            "content": {
38              "application/json": {
39                "schema": {
40                  "type": "integer"
41                }
42              }
43            }
44          }
45        }
46      }
47    },
48    "/legacy": {
49      "get": {
50        "responses": {
51          "200": {
52            "description": "Legacy"
53          }
54        }
55      }
56    }
57  }
58}`,
59    "currentSpec": `{
60  "openapi": "3.1.2",
61  "info": {
62    "title": "Synthetic Orders API",
63    "version": "2.0"
64  },
65  "paths": {
66    "/orders": {
67      "get": {
68        "parameters": [
69          {
70            "name": "state",
71            "in": "query",
72            "required": true,
73            "schema": {
74              "type": "string",
75              "enum": [
76                "open"
77              ]
78            }
79          }
80        ],
81        "responses": {
82          "200": {
83            "description": "Order count",
84            "content": {
85              "application/json": {
86                "schema": {
87                  "type": "integer"
88                }
89              }
90            }
91          }
92        }
93      }
94    }
95  }
96}`
97};
98
99// Run the Actor and wait for it to finish
100const run = await client.actor("fluffy_ingot/openapi-change-preflight").call(input);
101
102// Fetch and print Actor results from the run's dataset (if any)
103console.log('Results from dataset');
104console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
105const { items } = await client.dataset(run.defaultDatasetId).listItems();
106items.forEach((item) => {
107    console.dir(item);
108});
109
110// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

OpenAPI Change Preflight | API Contract Checks API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use OpenAPI Change Preflight | API Contract Checks API in JavaScript or TypeScript, providing convenience functions and automatic retries on errors.

Install the apify-client

$npm install apify-client

Other API clients include:

OpenAPI Change Preflight | API Contract Checks API in Python

OpenAPI Change Preflight | API Contract Checks API through CLI

OpenAPI Change Preflight | API Contract Checks OpenAPI definition

OpenAPI Change Preflight | API Contract Checks API

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X/Twitter scraper — 10 modes: tweets, profiles, followers, comments, timelines, lists, search & more. From $0.09/1K — up to 90% cheaper than alternatives. Premium residential proxy (~95% success rate). apidojo-compatible output. MCP-ready for AI agents.

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124

HolidayCheck Reviews Scraper - German Hotel Ratings & Trends

kamerozkan/holidaycheck-review-intelligence

Scrape and monitor HolidayCheck hotel reviews for DACH hospitality teams. Export ratings and verified-stay flags, track aspect trends, detect explainable anomalies, compare competitors, and generate management-ready reputation reports.

Kamer Ozkan

Lead Enrichment Pipeline — 5-47x Cheaper Than Clay

ryanclinton/lead-enrichment-pipeline

All-in-one lead enrichment: email discovery, phone finding, verification, company research, and lead scoring in one run. CSV or JSON in, scored leads out. $0.12/lead — 5-47x cheaper than Clay.

Ryan Clinton

107

1.0

(1)

Evidence-Based B2B Lead Qualification & Outreach

nextlabs/ai-lead-qualifier-outreach

Turn a company list into evidence-backed ICP scores, buying-signal explanations, and ready-to-review LinkedIn and email outreach. Bring your own AI and research keys.

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Store/Crawler Surface Preflight

checksmithcats/store-crawler-surface-preflight

Cross-check public robots.txt, sitemap, noindex, llms.txt, policy links, and contact signals from a storefront URL. Reads only public URLs; no account access.

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Google Maps Email Extractor & Lead Scraper

highbrow_fame/google-maps-email-extractor

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