Pricing

from $1.40 / 1,000 dataset item validateds

Dataset Contract & Regression Tester

Test Apify datasets against versioned contracts. Catch missing and extra fields, type and nullability drift, duplicate keys, and breaking schema changes with CI-ready evidence.

Pricing

from $1.40 / 1,000 dataset item validateds

Rating

0.0

(0)

Developer

Michael Olmos

Actor stats

Bookmarked

Total users

Monthly active users

2 days ago

Last modified

Categories

Developer tools

Automation

You can access the Dataset Contract & Regression Tester 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

1from apify_client import ApifyClient
2
3# Initialize the ApifyClient with your Apify API token
4# Replace '<YOUR_API_TOKEN>' with your token.
5client = ApifyClient("<YOUR_API_TOKEN>")
6
7# Prepare the Actor input
8run_input = { "items": [
9        {
10            "id": "order-001",
11            "total": 28.5,
12            "currency": "USD",
13            "paid": True,
14        },
15        {
16            "id": "order-002",
17            "total": 19,
18            "currency": "USD",
19            "paid": False,
20        },
21    ] }
22
23# Run the Actor and wait for it to finish
24run = client.actor("gifted_wagon/dataset-contract-tester").call(run_input=run_input)
25
26# Fetch and print Actor results from the run's dataset (if there are any)
27print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
28for item in client.dataset(run.default_dataset_id).iterate_items():
29    print(item)
30
31# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

Dataset Schema Validator & Data Contract Tester API in Python

The Apify API client for Python is the official library that allows you to use Dataset Contract & Regression Tester API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

Other API clients include:

Dataset Contract & Regression Tester API in JavaScript

Dataset Contract & Regression Tester API through CLI

Dataset Contract & Regression Tester OpenAPI definition

Dataset Contract & Regression Tester API

Apify Dataset Quality Profiler

eager_vitamin/apify-dataset-quality-profiler

Profile missing fields, nulls, empty strings, JSON types, distinct counts, and duplicate keys in an Apify dataset.

Lau Kuan Ee

Third-party API Contract Drift Monitor

invaluable_rondeau/third-party-api-contract-drift-monitor

Check authorized GET endpoints against an OpenAPI contract and report machine-readable schema drift in one run.

PROOFNEXA

API Contract Drift Monitor

q_services/api-contract-drift-monitor

Detect added, removed and type-changed fields in JSON API responses with persistent baselines and breaking-change flags.

Q Services

Dataset QA Auditor

junipr/dataset-qa-auditor

Validate Apify dataset rows for schema drift, null spikes, duplicate keys, type mismatches, and delivery-readiness issues. Outputs row-level QA results plus a summary report.

junipr

MCP Tool Contract Gate

quietrelay/mcp-tool-contract-gate

MCP server tool-contract monitor for agent platforms. Catch consumer-breaking MCP tool changes before agents break: compare an HTTPS tool catalog to a baseline and export Dataset findings, SUMMARY, SARIF, and JUnit for CI or schedules.

quiet relay

Lighthouse CI Regression Gate

hero98/lighthouse-release-regression-gate

Lighthouse CI performance regression and pass/fail gate for 1–10 authorised public URLs, with explicit baselines, thresholds, and Core Web Vitals.

Suliman Tadros

Rich Results Schema.org Tester

alizarin_refrigerator-owner/rich-results-tester

Test any URL for Google Rich Results eligibility. Validate structured data, identify schema errors & get recommendations. Batch test multiple pages for SEO audits.

The Howlers

Validate Dataset(s) with JSON Schema

jaroslavhejlek/validate-dataset-with-json-schema

This Actor validates items in one or more datasets against a provided JSON Schema. Use it if you planning to add a dataset validation schema to your actor and you want test it.

Jaroslav Hejlek

OpenAPI Consumer Breakage Gate

quietrelay/openapi-consumer-breakage-gate

API contract monitor for OpenAPI 3.0/3.1. Catch consumer-breaking changes before release: compare an HTTPS spec to a baseline and export Dataset findings, SUMMARY, SARIF, and JUnit for CI or schedules.

quiet relay

Dataset Drift Monitor

checksmithcats/dataset-drift-monitor

Scheduled scraper ran successfully, but did the output quietly change? Compare the current dataset shape with the latest baseline for count, field, missing-rate, and type-distribution drift.