# Required Fields Validator — AI Connector

Checks objects against a list of required fields. Required Fields Validator is listed under Developer Tools in the ChatGPT apps directory, built by Beike Yan.

Source: https://node8.ai/ai-connectors/developer-tools/required-fields-validator/

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[AI Connectors](https://node8.ai/ai-connectors/) · [Developer Tools](https://node8.ai/ai-connectors/developer-tools/)

# Required Fields Validator

Checks objects against a list of required fields

Listed in ChatGPT

[ChatGPT listing](https://chatgpt.com/plugins/required-fields-validator?open_in_app) [required-fields-validator.onrender.com](https://required-fields-validator.onrender.com)

Overview

## What Required Fields Validator does

Required Fields Validator takes an object plus a list of fields that must be present, then reports the difference. The response is structured rather than prose, naming the fields that are absent and the ones that are invalid.

The scope is deliberately narrow. It is meant for checking structured data, not for interpreting free-form text, so input needs to arrive already shaped as an object with named keys.

The example prompts show the shape of the work: validating a form against name, email, and location; validating the same form with location left out; and validating one that carries fields beyond the required list.

### Who it is for

Developers checking form submissions or API inputs against a fixed field list.

### What stands out

It answers one narrow question, and the listing says outright that free-form analysis is out of scope.

Availability

## Where Required Fields Validator is listed

Required Fields Validator is listed in the ChatGPT apps directory only. Beike Yan has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.

ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.

ChatGPT listing

## In the ChatGPT apps directory

Developer

Beike Yan

Filed under

Developer Tools

Listed since

June 2026

Authentication

Authenticates when installed

Website

[required-fields-validator.onrender.com](https://required-fields-validator.onrender.com)

Policies published

Privacy policy · Terms of service

Official listing

[Open in ChatGPT](https://chatgpt.com/plugins/required-fields-validator?open_in_app)

Snapshot

August 2026

### Example prompts from the listing

-   Validate form with required fields: name, email, location
-   Validate form missing location
-   Validate form with extra fields

Nearby

## Other Developer Tools connectors

### [Payload Completeness Checker](https://node8.ai/ai-connectors/developer-tools/payload-completeness-checker/)

Checks a JSON payload against a required-field schema

ChatGPT

### [Date Range Validator](https://node8.ai/ai-connectors/developer-tools/date-range-validator/)

Validates a start and end date pair

ChatGPT

### [Lightrun](https://node8.ai/ai-connectors/developer-tools/lightrun/)

Live runtime snapshots and metrics from running applications

Claude

### [Magicweave](https://node8.ai/ai-connectors/developer-tools/magicweave/)

Game economy design, validation, and simulation for Magicweave backends

Claude

### [OctoPerf MCP](https://node8.ai/ai-connectors/developer-tools/octoperf-mcp/)

Load test scenarios, runs, and results on the OctoPerf platform

Claude

### [Vantage](https://node8.ai/ai-connectors/developer-tools/vantage/)

Cost analysis for cloud, SaaS, and AI spend

ChatGPT

[All 188 Developer Tools connectors](https://node8.ai/ai-connectors/developer-tools/)

This is an independent catalogue entry compiled by Node8 from Required Fields Validator's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Beike Yan, and inclusion here is not an endorsement.

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