Thousands of funded accounts

Your Opper account. One wallet for every AI app.

Top up your wallet once and spend across 700+ models, from AI Roundtable to the coding agent in your terminal.

Get startedView Documentation

Overview

What is an Opper account?

An account with a built-in AI wallet: a pay-as-you-go balance of credits that every Opper-connected app can draw from.

One balance, every app

Fund your Opper account once, then spend those credits in every app you connect via Login with Opper, and your history, caps, and balance travel with you.

You stay in control

See every call, cap spend per app, and revoke access any time. No keys to paste, no invoices to chase.

Runs on Opper's gateway

Every call routes through Opper's AI gateway with 700+ models, automatic fallbacks, and per-app usage stats included.

The apps

Where your Opper account works today

Sign in with Opper and every call is charged to the same balance, no keys to paste and no separate signups.

Apps

Debate any question across 700+ models in AI Roundtable, then explore every app you can sign in to with Opper.

Browse the apps

Coding agents

Launch Claude Code, Codex, OpenCode, or Pi with one command and run them on your balance.

See the Agent CLI

Build your own

Let users sign in to your app with Opper and pay for their own inference.

Get started

For developers

Let users pay for their own AI

Paste the cookbook into Claude Code, Codex, or Cursor, or copy the snippets below.

Let your AI agent integrate it

The cookbook is a complete reference implementation. Drop the link into Claude Code, Codex, Cursor, or your agent of choice, and it'll wire Login with Opper into your codebase in minutes. Register an OAuth app at platform.opper.ai first, then let your agent handle the rest.
View full reference on GitHub
# Paste into Claude Code, Codex, Cursor, etc.
 
Integrate Login with Opper into my app.
Reference implementation:
 
https://github.com/opper-ai/opper-cookbook
/tree/main/examples/login-with-opper-web

User flow

From sign-in to paid inference in three steps

Standard OAuth, nothing custom to build.

1

User clicks “Login with Opper”

They authenticate and consent to fund the calls your app makes.

2

Your server gets a user-scoped API key

The SDK exchanges the code and returns a key tied to their account.

3

Call any model, user pays

Call any model through Opper's gateway. Every token bills to their balance.

Builders program

Building on Login with Opper? Let's talk.

Users who top up their Opper account for one app arrive at yours pre-funded, with no credit card friction and no free-tier abuse. We're working with the first wave of builders shipping Login with Opper, and early partners get direct support, input on the roadmap, and a seat at the table when we open revenue share to app developers.

Get in touch at wallet@opper.ai

Model catalog & pricing

Access the latest AI models from leading providers with unified pricing per million tokens.

All prices are per 1M tokens • EU and US regions available • Prices subject to change, see docs for latest

ProviderModelRegionInput (1M tokens)Output (1M tokens)
Loading models...

Custom Models & BYOK

Bring your own API keys or add custom model deployments using the Opper CLI or API.

opper models create example/my-gpt5 azure/gpt5-production YOUR_API_KEY

Looking for a specific model? View complete model list →

FAQ

Questions builders ask first

What is an AI wallet?+
An AI wallet is a user-funded balance of AI credits that works across apps. Your Opper account has exactly that built in, a prepaid wallet you top up once and spend across 700+ models in any app that supports Login with Opper.
How does the Opper account relate to Opper's AI gateway?+
The account is the user-funded billing layer on top of Opper's AI gateway. Every inference call flows through the same gateway that routes across 700+ models, falls over on rate limits, and logs every call. You just don't see the token bill, the user does.
What if my user doesn't have an Opper account?+
Signup is built into the OAuth flow. When a new user clicks “Login with Opper”, they're prompted to create an account and add funds before being redirected back to your app. You never handle the signup yourself.
How is this different from “paste your API key”?+
With BYO API keys, every user has to create accounts with every provider, manage keys, and handle billing individually. With Login with Opper, one OAuth click gives them access to every model Opper supports, a revocable user-scoped API key, and a single balance they control.
Which models does the Opper account support?+
All 700+ models in the Opper catalog, including OpenAI, Anthropic, Google, Meta, Mistral, xAI, and AWS Bedrock. Users spend from the same balance across any of them, so you don't need separate provider integrations.
How is pricing set?+
Users pay Opper's standard model pricing (provider rates with no markup, 3% fee on top-ups) from their balance. You don't see the token cost on your P&L.
Can app developers earn revenue from connected apps?+
Yes. We're working with a selected group of builders on a revenue-share model where apps that bring users into the Opper ecosystem earn a cut of the gateway margin on their users' inference spend. Get in touch to apply to the partner program.

Ready to ship user-paid AI?

Drop Login with Opper into your app today.

Get startedView Documentation