Dev tools · alternatives · 2026

24 alternatives to Yesapi.online

Low-cost AI API gateway for OpenAI-compatible developer tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

1. 1
   APIPark▲719

   Your open source AI gateway & API developer portal

   2024 · apipark.com · its alternatives →

2. 2
   NoCodeAPI▲552

   Build third-party application APIs with NoCode

   2020 · nocodeapi.com · its alternatives →

3. 3
   OpenAI o1 API ▲458

   OpenAI's most advanced model, o1 API to third-party devs

   2024 · developers.openai.com · its alternatives →

4. 4
   Cursor for your API▲473

   Generate, edit, lint & test your API workflow in one place

   2025 · app.getelva.ai · its alternatives →

5. 5
   NoCodeAPI 3.0▲415

   The easiest way to connect with APIs without code

   2021 · nocodeapi.com · its alternatives →

6. 6
   AgentAPI – HTTP API for Claude Code, Goose, Aider, and Codex▲163

   HTTP API for Claude Code, Goose, Aider, Gemini, Amp, and Codex - coder/agentapi

   2025 · github.com · its alternatives →

7. 7
   Mindware▲281

   API gateway for AI agents

   2024 · mindware.co · its alternatives →

8. 8
   Defapi▲5

   Affordable AI APIs

   Jan 2026 · defapi.org · its alternatives →

9. 9
   LLM Gatewayfree tier▲296

   I built an OpenAI-compatible LLM gateway that routes requests to OpenAI, Anthropic, Ollama, vLLM, llama-server, SGLang... anything that speaks /v1/chat/completions. Single Go binary, one YAML config file, no infrastructure. It does the things you'd expect from this kind of gateway... semantic routing via a three-layer cascade (keyword heuristics, embedding similarity, LLM classifier) that picks the best model when clients omit the model field, weighted round-robin load balancing across local inference servers with health checks and failover. The part I think is most…

   2025 · llmgateway.io · its alternatives →

10. 10
    create-api.dev by Kong▲150

    Generate and share OpenAPI specs with AI

    2025 · api.dev · its alternatives →

11. 11
    Chat Interface for OpenAI Assistants▲119

    ChatGPT-like customer interactions in a website widget

    2024 · openwidget.com · its alternatives →

12. 12
    Free OpenAI API Access with ChatGPT Account▲48

    Free AI with your ChatGPT account. Contribute to EvanZhouDev/openai-oauth development by creating an account on GitHub.

    Mar 2026 · github.com · its alternatives →

13. 13
    Api2ai – create an API agent from any OpenAPI Spec▲23

    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 →

14. 14
    ServerlessAI – Build, scale, and monetize AI apps without back end▲86

    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 →

15. 15
    Muapi▲79

    Muapi is a developer-centric, fully hosted API platform tailored for rapid and scalable AI-driven visual content. Generate high-resolution images in under 2 seconds and cinematic videos in just a few minutes—all backed by robust cloud infrastructure, no GPU management, and seamless scaling.

    2025 · muapi.ai · its alternatives →

16. 16
    OpenAI dev assistant GUI with local code interpreter▲67

    2023 · github.com · its alternatives →

17. 17TA
    TypeAPI – An OpenAPI alternative optimized for code generation▲55

    An OpenAPI alternative to describe REST APIs for type-safe code generation.

    2023 · typeapi.org · its alternatives →

18. 18
    FreeAPI▲1

    The most cost-effective AI API HUB for developers.

    Apr 2026 · free-api.ai · its alternatives →

19. 19
    LocalAPI.ai - Local AI Platform▲14

    Easily invoke and manage local AI models in your browser.

    2025 · github.com · its alternatives →

20. 20
    ApexApi▲1

    One API for every AI model. Built for apps and agents.

    Jul 2026 · apexapi.dev · its alternatives →

21. 21
    VoAPI▲3

    Next-generation AI model intelligent gateway

    2025 · demo.voapi.top · its alternatives →

22. 22
    NaAPI▲2

    One API for 200+ leading AI models.

    Aug 2026 · naapi.cc · its alternatives →

23. 23
    OpenAPI Tools▲16

    Your APIs, Now AI Tools

    2025 · its alternatives →

24. 24
    hiapifree tier, from $0.015/mo▲2

    One API for leading AI image, and video generation models.

    Jul 2026 · hiapi.ai · its alternatives →

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 →