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Best form testing APIs

MockHero API

Generate realistic, schema-aware synthetic test data for any database schema. 50+ field types, AI prompt-to-schema, pre-built templates, JSON/SQL/CSV output.

Tools & Utilities Free 7-Day Trial

100% uptime 186ms avg MCP ready

Fast Email Validation API

Validates email addresses by checking format, domain, and MX records, providing structured results and metadata for automatic integrations.

Communication & Messaging Free 7-Day Trial

100% uptime 571ms avg MCP ready

Test User Creation API

"Elevate applications and simulations with a versatile, randomized user profile generator for authentic testing and development."

Tools & Utilities Free 7-Day Trial

100% uptime 251ms avg MCP ready

Mock User Profile Generator API

The Mock User Profile Generator API generates fictional user profiles for diverse applications, including testing, design, research, and more. Highly versatile.

Tools & Utilities Free 7-Day Trial

100% uptime 194ms avg MCP ready

Mock Data API MockHero

MockHero’s Mock Data API simplifies creating placeholder data, perfect for testing and development needs.

Tools & Utilities Free 7-Day Trial

100% uptime 142ms avg MCP ready

Schema Aware Data Generation MockHero API

Enhance your data generation with MockHero's Schema Aware Data Generation API, ensuring data integrity and relevance.

Data & Analytics Free 7-Day Trial

100% uptime 93ms avg MCP ready

Synthetic Data MockHero API

The Synthetic Data Synthetic Data MockHero API allows developers to generate diverse datasets while preserving privacy and compliance.

AI & Machine Learning Free 7-Day Trial

100% uptime 113ms avg MCP ready

FreeCustomEmail - Temp Email and OTP Testing API

FreeCustom.Email is a powerful API that enables users to generate temporary email addresses for seamless online registration and OTP testing. With its user-friendly interface, you can effortlessly create disposable email accounts to bypass spam and enhance privacy, while easily receiving one-time passwords and verification emails without any hassle. Ideal for developers and testers, this API ensures secure and anonymous interactions with online services.

Communication & Messaging Free 7-Day Trial

100% uptime 398ms avg MCP ready

Mock User Identity Creator API

The Mock User Profile Generator API is a versatile tool that creates fictional user profiles for a wide range of applications, such as testing, design, research.

Tools & Utilities Free 7-Day Trial

100% uptime 437ms avg MCP ready

Validate Emails and Phone Numbers API

Shield your platform from spam with the Validate Emails and Phone Numbers API.

Communication & Messaging Free 7-Day Trial

100% uptime 130ms avg MCP ready

Identity Fabrication API

The Identity Fabrication API creates realistic digital identities ideal for software testing, research and privacy protection.

Security & Cybersecurity Free 7-Day Trial

100% uptime 688ms avg MCP ready

Phone and Email Validation API

Validates phone numbers and email addresses, confirming correct formats, country codes, location, number type, and active MX records.

Communication & Messaging Free 7-Day Trial

100% uptime 1,485ms avg MCP ready

Social Preview QA API

Instantly validate how any URL will appear when shared on Facebook, LinkedIn, Twitter, and WhatsApp. Returns a full JSON report with platform-specific scores, broken tag detection, image dimension checks, and plain-English fix instructions — all in a single API call.

Social Media & Networking Free 7-Day Trial

100% uptime 1,105ms avg MCP ready

Test Data Generator MockHero API

Generate realistic test data effortlessly with MockHero's Test Data Generator API, enhancing your development process.

Tools & Utilities Free 7-Day Trial

100% uptime 1,451ms avg MCP ready

Synthetic Profile Builder API

Create diverse, synthetic personal and corporate identities for comprehensive application testing.

Market Data & Trading Free 7-Day Trial

100% uptime 644ms avg MCP ready

Dynamic Test Data MockHero API

Effortlessly generate dynamic test data on demand using MockHero's Dynamic Test Data API, optimizing your testing process.

Tools & Utilities Free 7-Day Trial

100% uptime 1,531ms avg MCP ready

Database Seeding MockHero API

Use the Database Seeding Database Seeding MockHero API to populate your databases with quality test data, streamlining your development workflow.

Tools & Utilities Free 7-Day Trial

100% uptime 1,619ms avg MCP ready

Fake Data API MockHero

Create fully customizable fake data quickly using MockHero's Fake Data API, tailored to your project’s requirements.

Tools & Utilities Free 7-Day Trial

100% uptime 1,646ms avg MCP ready

Fabricated Identity Generator API

The Fabricated Identity Generator API creates realistic digital identities, ideal for software testing, research endeavors, and preserving confidentiality.

Tools & Utilities Free 7-Day Trial