You can access the Document Validator 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 = {
9    "profile": "invoice",
10    "text": """Invoice Number: INV-100
11Total: $42.00
12Due Date: 2026-10-01""",
13    "requiredFields": [
14        "invoiceNumber",
15        "total",
16    ],
17}
18
19# Run the Actor and wait for it to finish
20run = client.actor("encouraged_offspring/document-validator").call(run_input=run_input)
21
22# Fetch and print Actor results from the run's dataset (if there are any)
23print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
24for item in client.dataset(run.default_dataset_id).iterate_items():
25    print(item)
26
27# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

Document Validator API in Python

The Apify API client for Python is the official library that allows you to use Document Validator API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

Other API clients include:

Document Validator API in JavaScript

Document Validator API through CLI

Document Validator OpenAPI definition

Document Validator API

Brazilian Document Validator

dam4g/brazilian-document-validator

Validates Brazilian CPF, CNPJ and CNH documents using real check-digit calculation — proxies to a dedicated validation API for fast, accurate results.

Heitor Santos Maia

Verra Carbon Project Registry Scraper

automation-lab/verra-carbon-project-registry-scraper

🌿 Extract normalized Verra VCS project details, status, methodology, reductions, validators, public-comment dates, participation data, and grouped documents from IDs or URLs.

Automation Lab

3.0

(1)

Peppol BIS 3.0 / UBL Invoice Validator (EN 16931)

fetchlab/peppol-invoice-validator

Validate UBL invoices and credit notes against the official Peppol BIS Billing 3.0 and EN 16931 rules: XSD, CEN Schematron and Peppol Schematron. Returns every failed rule with its ID, message and location, plus an invoice summary.

fetchlab

Romania e-Factura Validator

kamerozkan/romania-efactura-validator

Preflight Romanian UBL Invoice and CreditNote XML against pinned UBL 2.1, CIUS-RO 1.0.1, and ro16931-ubl 1.0.9 rules.

Kamer Ozkan

JSON Schema Validator — Bulk

hipersoft/json-schema-validator

Validate JSON documents or every row of a dataset against a JSON Schema and get every failing path with a clear message. Enforce data contracts and QA scraped data.

hiper soft

Data Format Converter - CSV, JSON, XML Transformation

ntriqpro/data-format-converter

Convert data between CSV, JSON, XML, Excel, YAML and TSV at scale — no manual reformatting. Control delimiters and encoding, validate against a schema, and run whole batches of files in one pass. Built for ETL jobs, data migration and developer pipelines.

daehwan kim

JSON Schema Validator & Generator — Infer, Validate & Document

perryay/json-schema-validator-generator

Infer JSON Schema from sample JSON data and validate JSON documents against existing schemas. Supports Draft-04, Draft-07, and 2019-09. Features nested objects, array item type inference, enum detection, batch validation, and human-readable schema documentation generation.

Perry AY

OpenAPI Spec Drift Detector

stellar_ballet_0bu/openapi-spec-drift-detector

Compare two OpenAPI 3.0/3.1 specs (JSON or YAML) and emit per-endpoint / per-operation / per-schema change rows with a `breaking` flag. Pairs with the api-response-delta-monitor.