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AI · alternatives · 2026

24 alternatives to AI Placeholder

AI-powered fake data REST API, inspired by JSON placeholder

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. AI Placeholder launched in 2023; newer entries below may have overtaken it.

  1. 1

    AI-powered API docs

    2024 · theneo.io · its alternatives →

  2. 2
    Base64.ai▲157

    Extract text, data, photos and more from all types of docs

    2021 · its alternatives →

  3. 3

    AI-powered receipt & invoice extraction for developers

    2025 · wellapp.ai · its alternatives →

  4. 4
    Theneo▲409

    Build Stripe-like API docs in just a few clicks

    2022 · its alternatives →

  5. 5

    Open-source AI document assistant

    2023 · its alternatives →

  6. 6
    PageAI▲576

    The AI that designs & codes websites better than Lovable/v0

    2025 · pageai.pro · its alternatives →

  7. 7

    Tracks & documents API changes, generates release notes

    2024 · its alternatives →

  8. 8
    apiJuice▲223

    Create a hosted API for anything in seconds

    2025 · apijuice.com · its alternatives →

  9. 9

    Data APIs for AI agents & developers — free to start

    Feb 2026 · apipick.com · its alternatives →

  10. 10

    Generate and share OpenAPI specs with AI

    2025 · api.dev · its alternatives →

  11. 11
    ZooData▲272

    The data layer for AI agents

    Jul 2026 · zoodata.ai · its alternatives →

  12. 12
    Quantati▲253

    AI powered data extraction APIs. Don't code another crawler.

    2019 · its alternatives →

  13. 13
    Props AI▲133

    Monitor & monetize your LLM applications

    2024 · its alternatives →

  14. 14

    Custom API endpoints with realistic fake data in seconds

    2022 · its alternatives →

  15. 15
    JSON Api▲175

    Hosted API's to develop your app for free 🙌

    2020 · its alternatives →

  16. 16

    Unprecedented visibility into consumer foot-traffic

    2018 · its alternatives →

  17. 17

    Use open-source AI in your Node.js apps, up to 67x faster

    2023 · its alternatives →

  18. 18

    The document extraction API with coordinate-proof

    2025 · ninjadoc.ai · its alternatives →

  19. 19AG

    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 →

  20. 20

    An open benchmark for AI agents that test APIs

    May 2026 · resources.kusho.ai · its alternatives →

  21. 21

    Generate realistic mock JSON data with AI.

    2025 · schema-ai-ten.vercel.app · its alternatives →

  22. 22SB

    Hello HN, I’ve always loved building frontend-only apps—those you can prototype over a weekend, host for free on GitHub Pages, and scale to millions of users. Unfortunately, AI-enabled apps complicate things, as exposing your OpenAI key to the world is obviously a no-go. This also means mobile developers often have to run their own servers. That’s why I built ServerlessAI, an API gateway that lets you securely call multiple AI providers directly from client side using OpenAI-compatible APIs. You can authenticate users through any identity provider, like Google or Apple, and set per-user…

    2024 · serverlessai.dev · its alternatives →

  23. 23AC

    api2ai parses OpenAPI Spec to generate an agent that can make API calls. For context, I recently need to explore a handful of API suites and thought LLMs can help expedite this process. After some digging, I found OpenAPI Specs are perfect fit for function calling. Based on a text prompt, api2ai can select the right endpoint and properly parse request params and make api calls. It also handles authentication, currently it supports basic auth, api keys, and bearer token schemes. The tool has helped me explore and see APIs in action without a deep dive into the docs or using postman. It’s open…

    2023 · github.com · its alternatives →

  24. 24

    Detect AI generated content

    2023 · 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 →