json schema output

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Structured Data Extraction Multi-Format Support Integration Payloads Mock Data Readable JSON Data Visualization Indentation Support Data Simulation Data Pipeline Support Fast Processing API Testing astrology zoo Automated Testing RDFa Validator Quick Data Generation JSON Output Structured JSON Output Schema Awareness Data Integrity

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Best json schema output APIs

MockHero API

Tools & Utilities

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.

Free 7-Day Trial

100% uptime 186ms avg MCP ready

Structured Data Format Converter API

Tools & Utilities

Convert data between the four common structured text formats in one call: send the payload in the body and pick the source and target formats. Great for configuration files, integration payloads and data pipelines.

Free 7-Day Trial

100% uptime 56ms avg MCP ready

Jewish Holidays-API

Science & Education

Accurate, lightweight and fast REST API for Jewish and Hebrew calendar holiday calculation, holiday lookup by key, upcoming holiday lookup, date range filtering, and keyword search across Gregorian

Free 7-Day Trial

100% uptime 343ms avg MCP ready

Sitemap Parser and Generator API

Tools & Utilities

Parse any sitemap or sitemap index, even compressed ones, into structured data with last modification, change frequency and priority. Follow index children automatically, or generate a valid sitemap from a simple list.

Free 7-Day Trial

100% uptime 367ms avg MCP ready

Universal JSON Fix

Tools & Utilities

Universal JSON Fix repairs broken or malformed JSON, especially from LLMs like ChatGPT, Claude, Deepseek, Gemini, or Llama. This API ensures reliable parsing by fixing mixed quotes, missing commas, and formatting issues, making it ideal for AI applications.

Free 7-Day Trial

100% uptime 13ms avg MCP ready

CSV to JSON Converter API

Tools & Utilities

Convert CSV to clean, typed JSON by URL or raw text. Auto-detects numbers, booleans, and nulls; handles quoted fields, embedded commas, and custom delimiters (RFC-4180). Fast, stateless, and MCP-ready for AI agents.

Free 7-Day Trial

100% uptime 399ms avg MCP ready

Data Utility API

Tools & Utilities

Convert JSON to CSV, currencies, dates, and units, plus generate QR codes — a lightweight all-in-one data utility toolkit for developers.

Free 7-Day Trial

100% uptime 148ms avg MCP ready

Schema Aware Data Generation MockHero API

Data & Analytics

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

Free 7-Day Trial

100% uptime 93ms avg MCP ready

Synthetic Data MockHero API

AI & Machine Learning

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

Free 7-Day Trial

100% uptime 113ms avg MCP ready

Mock Data API MockHero

Tools & Utilities

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

Free 7-Day Trial

100% uptime 142ms avg MCP ready

Solaris Africa Hybrid Feasibility API

Sustainability & Green Tech

Engineering-grade API for rapid solar, battery, diesel hybrid feasibility, financial modelling and lender-ready project screening across African commercial & industrial markets.

Free 7-Day Trial

100% uptime 300ms avg MCP ready

HTML Table Extractor API

Tools & Utilities

Extract every HTML table from any web page into clean, structured JSON — headers and rows auto-detected. Just pass a URL; no scraping code needed. Fast, stateless, and MCP-ready for AI agents.

Free 7-Day Trial

100% uptime 492ms avg MCP ready

Schema Markup Validator API

Data & Analytics

Validate structured data markup on any web page including JSON-LD, Microdata, and RDFa. Detects Schema.org types, checks for errors, and returns detailed validation results.

Free 7-Day Trial

100% uptime 223ms avg MCP ready

Horoscope Data API

Market Data & Trading

Discover zodiac trends and insights using the Horoscope Data API for personal growth.

Free 7-Day Trial

100% uptime 343ms avg MCP ready

Database Seeding MockHero API

Tools & Utilities

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

Free 7-Day Trial

100% uptime 898ms avg MCP ready

JSON to Chart Image API

Data & Analytics

Generate charts (images base64) based on your JSON objects. Be able to visualize your data with this API.

Free 7-Day Trial

100% uptime 2,039ms avg MCP ready

Test Data Generator MockHero API

Tools & Utilities

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

Free 7-Day Trial

100% uptime 1,451ms avg MCP ready

Dynamic Test Data MockHero API

Tools & Utilities

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

Free 7-Day Trial

100% uptime 1,531ms avg MCP ready

Fake Data API MockHero

Tools & Utilities

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

Free 7-Day Trial

100% uptime 1,646ms avg MCP ready

Structured Data Markup Validator API

Data & Analytics

Extracts and validates JSON-LD, Microdata, RDFa, and structured markup from webpages or raw HTML for SEO and technical validation.

Free 7-Day Trial

100% uptime 1,874ms avg MCP ready

JSON Clean API

Tools & Utilities

JSON Clean API converts JSON documents into a readable format with line breaks and indentations. It supports entries up to 200,000 characters.

Free 7-Day Trial

100% uptime 1,341ms avg MCP ready

Engineering-Grade Hybrid Solar Feasibility API for Africa

Sustainability & Green Tech

Ensure rigorous assessments with our Engineering-Grade Hybrid Solar Feasibility API tailored for Africa.

Free 7-Day Trial

100% uptime MCP ready

Hybrid Solar Energy Modelling API for African Industries

Sustainability & Green Tech

Enhance energy efficiency in African industries with our hybrid solar energy modeling API.

Free 7-Day Trial

100% uptime MCP ready

African C and I Project Screening Hybrid Solar API

Sustainability & Green Tech

Streamline your C&I projects with our African C&I Project Screening Hybrid Solar API for optimal outcomes.

Free 7-Day Trial

100% uptime MCP ready

Zoo Database API

Travel & Transportation

The Zoo Database API provides a structured way to access information about zoos around the world. It allows users to retrieve data on zoos in specific countries. The API ensures optimal performance with endpoints designed for granular data access.

Free 7-Day Trial

100% uptime 4,758ms avg MCP ready

Claude AI JSON ChatGPT Data Anonymization Keyword Search Repair Syntax Deepseek API Testing Sitemap Parsing LLM Data Parsing Errors Data Simulation Test Data Generation Synthetic Data Project Screening Test Data Fix More...

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Best json schema output APIs

MockHero API

Structured Data Format Converter API

Jewish Holidays-API

Sitemap Parser and Generator API

Universal JSON Fix

CSV to JSON Converter API

Data Utility API

Schema Aware Data Generation MockHero API

Synthetic Data MockHero API

Mock Data API MockHero

Solaris Africa Hybrid Feasibility API

HTML Table Extractor API

Schema Markup Validator API

Horoscope Data API

Database Seeding MockHero API

JSON to Chart Image API

Test Data Generator MockHero API

Dynamic Test Data MockHero API

Fake Data API MockHero

Structured Data Markup Validator API

JSON Clean API

Engineering-Grade Hybrid Solar Feasibility API for Africa

Hybrid Solar Energy Modelling API for African Industries

African C and I Project Screening Hybrid Solar API

Zoo Database API

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