Unofficial Chatgpt Api

Unofficial Chatgpt Api

Unofficial ChatGPT API built on Daniel Gross's WhatsApp GPT

69/100MonitorFreeFree

A useful proof-of-concept for developers who want to experiment with ChatGPT without official API costs. However, its unofficial nature and maintenance risks make it unsuitable for production use. Consider only for learning or side projects.

Best for
  • Developers needing a free ChatGPT API for prototyping
  • Hobbyists exploring conversational AI
  • Privacy-conscious users wanting self-hosted solutions
  • Those interested in WhatsApp-like chat interfaces
Not ideal for
  • Production applications requiring reliability
  • Users needing official support or SLAs
  • Those seeking a feature-rich, maintained library
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IntermediateAPI · CLIAPI availableVerified 14d ago
Pricing
Free
FreeFree tier
Learning curve
Intermediate
Runs on
APICLI
API available
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In short

Unofficial Chatgpt Api — Unofficial ChatGPT API built on Daniel Gross's WhatsApp GPT. Best for Developers needing a free ChatGPT API for prototyping, Hobbyists exploring conversational AI, Privacy-conscious users wanting self-hosted solutions. Free to use.

Viability Score

69/100
Monitor

How likely is Unofficial Chatgpt Api to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.

momentum
55
funding runway
40
website health
90
wrapper dependency
100

Last calculated: July 2026

How we score →

Key Features

  • Unofficial ChatGPT API wrapper
  • Based on Daniel Gross's WhatsApp GPT
  • Self-hosted deployment
  • Streaming and non-streaming responses
  • Simple Python API
  • Environment variable configuration
  • Open source codebase
  • Community contributions welcome

About Unofficial Chatgpt Api

FreeIntermediateAPI availableAPI · CLI

This repository provides an unofficial API for ChatGPT, leveraging the architecture from Daniel Gross's WhatsApp GPT. It enables developers to integrate conversational AI capabilities into their own applications without relying on official OpenAI endpoints. The tool is designed for quick prototyping and experimentation, offering a simple interface to query a language model. The target audience includes developers and hobbyists who need a lightweight, self-hosted solution for chatbot functionality. It is particularly useful for those who want to avoid API costs or need more control over their data. The setup involves cloning the repo and configuring environment variables, making it accessible to anyone with basic Python knowledge. The API works by sending prompts to the ChatGPT model through a custom wrapper, handling authentication and request formatting. It supports both streaming and non-streaming responses. The core difference from official APIs is its independence from OpenAI's infrastructure, though it still relies on the underlying model. What sets it apart is its simplicity and focus on WhatsApp-style interactions. However, it lacks official support, documentation beyond the README, and may break with model updates. It is not suitable for production use but excels for learning and personal projects.

Behind the Verdict

Should you use this? If you're a developer looking to quickly experiment with ChatGPT in a self-hosted environment, this repo offers a low-friction entry. It's free and open source, so you can inspect and modify the code. However, be aware that it's a wrapper around an unofficial endpoint that might change or be blocked at any time. The documentation is minimal, and there is no guarantee of uptime or accuracy. For anything beyond a hobby project, you're better off with the official API or a more robust framework like LangChain or Embedchain. In short: great for tinkering, not for building reliable products.

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Use Cases

Models Under the Hood

ChatGPT

Limitations

  • This is an unofficial API that may break with updates to ChatGPT.
  • It lacks rate limiting, authentication beyond basic keys, and proper error handling.
  • The codebase is minimal and not actively maintained.

12-month cost

Project the real annual outlay, including the implied monthly cost when only an annual tier is published.

Annual total
Free
Over 12 months
Effective monthly

Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.

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