AI · alternatives · 2026
24 alternatives to GPT Plugin Builder
Give us your REST API - We'll give you a GPT Plugin
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. GPT Plugin Builder launched in 2023; newer entries below may have overtaken it.
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Generate customized, realistic mock data & APIs, via GPT
2023 · its alternatives →
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ChatGPT Plugins▲355Open AI announced ChatGPT Plugins to access real-world data
2023 · openai.com · its alternatives →
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GPT Image API▲487Bring GPT-4o quality images to your apps
2025 · developers.openai.com · its alternatives →
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Monetise your GPTs with in-chat payments in the OpenAI Store
2024 · gptbuilder.tools · its alternatives →
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SingleAPI▲209Convert the internet into your own API using GPT
2023 · singleapi.co · its alternatives →
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Create Google Slides with AI and ChatGPT just in 1 click
2023 · workspace.google.com · its alternatives →
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Convert your texts into high-quality videos using ChatGPT
2023 · app.heygen.com · its alternatives →
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Build ChatGPT plugin w/ your own websites and docs—in mins
2023 · customgpt.ai · its alternatives →
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Code Spoonfeeder▲129Spoonfeed your entire code to Chat GPT
2024 · code-spoonfeeder-3fc96ecd8dd6.herokuapp.com · its alternatives →
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PDF GPT▲141Host your own PDF GPT app using your Open AI API key
2023 · therealtjerkienator.gumroad.com · 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 →