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AI · alternatives · 2026

24 alternatives to MockAPI

Generate mock APIs from natural language in seconds

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Generate custom data & API to build apps in less than 30s

    2021 · retool.com · its alternatives →

  2. 2
    Mockaroo▲354

    A realistic data generator to test your app

    2015 · mockaroo.com · its alternatives →

  3. 3

    Generate mock data using AI

    2023 · its alternatives →

  4. 4

    Instant API Mocking for Faster Development

    2024 · its alternatives →

  5. 5

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

  6. 6
    apiJuice▲223

    Create a hosted API for anything in seconds

    2025 · apijuice.com · its alternatives →

  7. 7
    Mocke▲519

    Mock email campaigns: know your reply rate without launching

    2025 · mocke.co · its alternatives →

  8. 8

    Instant mock REST & LLM APIs - free, no signup required

    Feb 2026 · mockapi.dog · its alternatives →

  9. 9

    A generator for OpenAPI 3. Contribute to egorsmkv/openapi3-generator development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  10. 10

    Accelerate Your Development with Realistic Mock APIs

    2024 · mockapi.com · its alternatives →

  11. 11

    Custom API endpoints with realistic fake data in seconds

    2022 · interimapi.com · its alternatives →

  12. 12

    Progressive Web App for generating mocked data from an OpenAPI specification - Fredx87/openapi-mock-generator

    2020 · github.com · its alternatives →

  13. 13

    Mock your entire API in minutes.

    2019 · mockadillo.com · its alternatives →

  14. 14

    Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

    2017 · mockoon.com · its alternatives →

  15. 15

    Free mock api generator for developers | instant test data

    Nov 2025 · fakeapifordevs.vercel.app · its alternatives →

  16. 16AG

    Hey HN, We just shipped a new AI-powered feature... BUT the "AI" piece is largely in the background. Instead of relying on a chatbot, we've integrated AI (with strict input & output guardrails) into a workflow to handle two specific tasks that would be difficult for traditional programming: 1. Identifying the most relevant base URL from HAR files, since it would be tedious to cover every edge case or scenario to omit analytics, tracking, and other network noise. 2. Generating synthetic data for API requests by passing the API context and faker-js functions to GPT-4. The steps are broken down…

    2024 · docs.multiple.dev · its alternatives →

  17. 17

    Generate React unit tests in seconds with AI

    2023 · supertest.ai · its alternatives →

  18. 18

    Hi HN! I'm Ankit, the founder of Beeceptor, a request mocking and intercepting tool. This time, I built something new to address a pain I’ve personally felt (and heard from dozens of QA, frontend, and platform teams): making OpenAPI specs actually useful during development. API contracts just sit around as docs often. What if you could 'activate' them, instantly have a realistic, hosted mock server-with contract validation, smart test data, and early usage? So I made _Mockaroo for OpenAPI_, but with brains. It spins up a hosted mock server from your spec in one click. It: - Generates…

    2025 · beeceptor.com · its alternatives →

  19. 19

    API Mocks Prototyping

    2020 · mock-api-builder.vercel.app · its alternatives →

  20. 20
    Mockable▲114

    For rapid API prototyping: create REST/SOAP mocks in 3 sec

    2015 · its alternatives →

  21. 21

    Get mock APIs from your schema

    2025 · its alternatives →

  22. 22

    Create mock APIs in seconds with AI. Ship prototypes faster.

    Dec 2025 · mocknica.dev · its alternatives →

  23. 23

    Effortless mock APIs for seamless testing & prototyping

    2024 · its alternatives →

  24. 24
    Platapi▲108

    Convert OpenAPI docs to working dynamic mock endpoints

    2024 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →