Tired of AI API Costs Eating Up Your Budget?

MicroLLM is Stripe for LLMs

Let users plug in their API keys(OpenAI, Claude, etc.),
and wave goodbye to unexpected bills

Terminal

$pip install microllm

Are Free AI Tools on the Web Really Enough?

Common frustrations that limit your AI experience

Have You Experienced This?

"This feature is amazing, but I hit the daily limit after just 5 requests. Now I have to wait until tomorrow."
Severe usage limitations on free AI services

"I requested a LinkedIn summary, and the response took over 2 days to come back. What's the point?"
Unbearable queues & waiting times

"That amazing free AI tool I bookmarked last week is completely gone now. The entire site has vanished!"
Promising services disappear overnight

"This site wants my OpenAI API key... How do I know they won't misuse it or charge thousands to my account?"
Serious credential security concerns

These frustrations are the reality for many web AI services. But why?

Developers Are Struggling Too

Behind every convenient AI feature is a significant cost.
While developers want to provide unlimited, fast, and powerful AI features to all users, the financial burden is often too great.

👨‍💻

Dreams Halted by API Costs

"I built an AI idea validator but couldn't launch it with only $10 left in my OpenAI account. The API costs would have bankrupted me in days."
Personal projects killed by API costs

💸

Unmanageable Costs

"Our AI tool went viral on Product Hunt. Two weeks later: $50,000 OpenAI bill. Had to shut down instantly. What should have been our big break became our downfall."
Viral success leads to financial disaster

🚧

Innovation Roadblocks

"Faced with bankruptcy or feature limits, we chose limits. As a result, ratings tanked. Users can't understand why they only get 5 requests per day when competitors offer 'unlimited' access."
User experience sacrificed to control costs

The Ideal Solution

MicroLLM revolutionizes AI applications for everyone. Users connect their own API keys once to access any MicroLLM-enabled app instantly. Developers build freely without managing keys or worrying about API costs.

🌟 For Users:

  • Use experimental or niche AI apps that wouldn't exist otherwise due to cost concerns
  • Stay in full control. Your key is secure and only used for your requests
  • Avoid delays, rate limits, or "freemium" walls
  • Enjoy unlimited AI creativity, powered by your own access

🛠 For Developers:

  • Launch bold, creative AI features without worrying about API bills
  • No need to manage tokens, build billing logic, or rate-limit users
  • Just build. MicroLLM handles the key relay securely
  • See real user feedback before deciding to scale

With MicroLLM, you're not limited by someone else's budget. You're free to use or build without compromise.

Meet MicroLLM

Users provide keys. Developers build apps.

Everyone wins with secure, limitless AI.

$OPENAI_API_KEY

Simple Integration for Developers

MicroLLM makes it easy to integrate AI capabilities into your application without handling API keys or paying for tokens.

Your users bring their own API keys while you focus on building great features. No more token costs or security concerns.

Simple integration with minimal code
microllm_example.py
Python
import microllm
// Your Service Token from MicroLLM Dashboard
SERVICE_TOKEN = "microllm_sp_eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
// Get user's MicroLLM token
def get_user_token(user_id):
return user_database.get_token(user_id)
user_token = get_user_token(current_user.id)
response = microllm.call(
prompt="Translate this to Korean",
service_token=SERVICE_TOKEN,
user_token=user_token
// User's API key is managed securely by MicroLLM
)

That's it! No need to manage API keys, handle token costs, or worry about security concerns. Your users bring their own keys, and you focus on building great features.

Curious About the End-User Experience?

See a visual demonstration of how end-users will connect their AI models to your service through MicroLLM – easily and securely.

How to Integrate MicroLLM

Follow these simple steps to integrate AI capabilities into your application

1

Get Service Token

Access MicroLLM dashboard and obtain your service provider token and endpoint

SERVICE_TOKEN="microllm_sp_eyJhbGci..."
https://connect.microllm.dev/your-app-id
2

Integrate the Code

Add MicroLLM to your application with just a few lines of code

import microllm
// Your Service Token from MicroLLM Dashboard
SERVICE_TOKEN = "microllm_sp_eyJhbGci..."
// User token from user's session or input
user_token = get_user_token_from_session(user_id)
response = microllm.call(
prompt="Translate this to Korean",
service_token=SERVICE_TOKEN,
user_token=user_token
// User's API key is managed securely by MicroLLM
)
3

Add Connect Button

Create a button in your app for users to connect their AI models via MicroLLM

<button
onClick={() => window.open("https://connect.microllm.dev/your-app-id")}
>
Connect AI Model
</button>
// This button redirects users to MicroLLM's secure connection page:
https://connect.microllm.dev/your-app-id
4

You're Done!

Your app is now connected to MicroLLM. Users can link their AI models securely to your service.

💰
User Pays
Each user connects their own AI providers
🛡️
API Keys Safe
Keys never pass through your servers
🚀
Ready to Use
Start serving content immediately
Integration Complete! Your app is now connected to MicroLLM.

Interested in MicroLLM?

Be among the first to experience MicroLLM when we launch. Join our waitlist for early access.

Join the waitlist

Curious About the End-User Experience?

See a visual step-by-step guide on how end-users connect their AI models through MicroLLM.

Secure by Design

MicroLLM keeps user API keys secure while enabling developers to access AI capabilities

💻

Your App

Focus on building great features

microllm.call(prompt, ...)
Simple API integration
No API key management
1. AI Request
2. Secure Connect
3. AI Response
4. Result

MicroLLM

Secure connection management

👤

User

Has OpenAI, Anthropic, or other API keys

API_KEY=sk-abc123...
Encrypted and stored in Azure Key Vault
Complete control over AI models

Zero Key Exposure

API keys never pass through developer servers and are encrypted in Azure Key Vault

Direct Model Access

Users connect directly to their preferred AI providers

End-to-End Security

All connections are encrypted and authenticated

Traditional vs. MicroLLM

See how MicroLLM simplifies your AI integration workflow

Traditional Approach

You Pay For Everything

User

Your User

Sends prompts to your app

Complex

Your Server

  • Stores user prompts
  • Manages your API keys
  • Handles all error cases
Expensive

Your Credit Card

Pays for all AI API usage

Problems:

  • You pay for every AI token used
  • You store all user prompts and completions
  • You build & maintain API proxy infrastructure
MicroLLM Approach

Users Bring Their Own Keys

User

Your User

  • Sends prompts to your app
  • Provides their API key
Simple

MicroLLM

  • Securely relays API requests
  • No data storage
  • Zero-trust security model
Cost-Effective

User's Credit Card

Pays for User's AI API usage

Benefits:

  • Users pay for their own API usage
  • No prompt or completion data is stored
  • No infrastructure to build or maintain

Unlock AI's Potential, Minus the Headaches

From side projects to enterprise-grade applications, MicroLLM removes AI adoption barriers and opens new possibilities. Discover how it fits your scenario.

The Challenges You Face:

  • 💰Launched your brilliant AI side project, only to lose sleep worrying about surprise API bills if it suddenly goes viral?
  • ⚠️Compromising user experience by rate-limiting or nerfing AI features just to keep it 'free' and avoid unpredictable costs?

MicroLLM Solution:

Users connect their own API keys, developers build freely

MicroLLM empowers your users to connect their own AI API keys. This frees you from the burden of token costs and the complexities of key management, allowing you to focus solely on building exceptional value. Now, experiment freely with your ideas and offer a full-fledged AI experience without the fear of escalating costs.

Key Benefits:

  • Ship your AI prototype without becoming a business
  • No unexpected bills from user API usage
  • Users pay only for what they use
  • Full access to premium models without your investment

Why I Built MicroLLM

A journey from token costs to a simpler solution for developers and users

Song's profile

Song

Maintainer of Co-op Translator, an Azure open-source project

When I first joined Co-op Translator, a free web-based translation tool, I faced a challenge: translations consumed expensive Azure OpenAI and Computer Vision tokens, but as a non-commercial open-source tool, we had no billing system.

The Initial Solution:

Users had to paste their own API keys directly into the browser to run translations using their own tokens.

It technically worked, but created problems:

  • Security concerns (trusting the page with sensitive keys)
  • No portability or reusability
  • Poor user experience (manually managing keys for each tool)

I reworked the project into a CLI tool where users could set environment variables and run translations locally with better privacy. But that raised a bigger question:

"What if there are hundreds of AI tools? Are users expected to manage their API key manually for every single one?"

That's when MicroLLM was born

What if users could connect their API key once and securely use it across tools without ever exposing it again? What if developers could ship AI-powered features without storing keys, paying for tokens, or maintaining proxies?

Just like Stripe processes payments without revealing card details, MicroLLM relays AI prompts without ever touching user keys or data.

MicroLLM Alpha: Be the First to Experience It!

Sign up for early access to MicroLLM alpha version launching July 15th. This is your opportunity to test our innovative BYOK solution for indie developers and early-stage SaaS teams before anyone else.

First to Try

Get early access to our Python SDK with OpenAI and Claude key support.

Provide Feedback

Shape the future of MicroLLM with your valuable input and suggestions.

Free Alpha Access

Test all features with our Free plan during the alpha period.

Launching July 15th, 2025. Limited spots available.