Which LLM providers are supported out of the box?

OpenAI, Anthropic Claude, Google Gemini, and Groq. The backend auto-detects which providers are usable based on which API keys you've configured, via LangChain's unified chat model interface. You only need at least one valid provider key to run it.

What's the difference between NoAuth and WithAuth?

NoAuth is a zero-auth REST wrapper with a per-request usage-logging endpoint — no login required. WithAuth adds JWT authentication, email OTP verification, role-based access control, and an admin console with a full audit trail. Note this isn't strictly additive: WithAuth's audit-log system replaces NoAuth's usage-logs endpoint rather than including it alongside auth.

Does the chat endpoint support streaming responses?

No — this product returns a single completed response per request rather than streaming tokens incrementally. See the Streaming Chatbot product if you need SSE token-by-token streaming.

Is there a built-in test suite?

No automated tests are included. A Postman collection is provided for manual/API-level verification of every endpoint.

NoAuth tier — landing screen with suggested prompts and model selector

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AI Chatbotsbeginner

AI Wrapper Kit

Full auth SaaS platform for AI chat, backed by MongoDB

$59one-time payment

Unified multi-provider LLM chat (OpenAI, Anthropic, Gemini, Groq)
MongoDB-backed persistent chat threads
JWT authentication with email OTP verification
Role-based access control (admin / user)
Fernet-encrypted credential handling
Admin console with full audit trail (replaces NoAuth's usage-logs endpoint)
22 REST API routes
Full Next.js app: chat workspace, auth screens, admin workspace

Instant download

Secure checkout

Refund if we can't fix it

Commercial license

Response in 48h

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10 minSetup Time

30 hrsDev Time Saved

1Pages

At a glance

Rapid prototyping of a multi-provider AI chat product (e.g. SEO copy generator, legal assistant, customer Q&A tool)Internal company chatbot, with or without loginA branded AI wrapper product with user accounts, billing readiness, and admin oversight (WithAuth tiers)

Setup in about 10 minutes

Saves roughly 30 dev hours

Infra estimate: $0 on free/self-hosted database tiers; pay-as-you-go LLM API usage

Built with

Next.jsReactTypeScriptTailwind CSSFastAPIPythonMongoDBPostgreSQL

Product details

About this product

AI Wrapper Kit

A lean, production-grade starter kit for building AI-powered wrapper applications — REST-based multi-provider LLM chat without the complexity of streaming connections or WebSockets. Pairs a FastAPI backend with a Next.js 15 / React 19 frontend, with multi-provider LLM chat, persistent conversation history, and usage logging wired up out of the box.

Core capabilities

Unified multi-provider chat: a single REST endpoint routes to OpenAI, Anthropic Claude, Google Gemini, or Groq via LangChain's init_chat_model, based on the model requested and which API keys are configured.
Persistent chat threads: multi-turn conversations with automatic thread titling from the first prompt.
Per-chat model override: switch providers/models per conversation.
Modern chat UI: Next.js single-page app with a chat workspace, model settings drawer, and system settings.

Four tiers, two independent choices

Pick your database (MongoDB or PostgreSQL) and your auth level (NoAuth or WithAuth):

NoAuth tiers: zero-auth by design — clone, add API keys, and start chatting. Includes a usage-logs endpoint for per-request token tracking.
WithAuth tiers: adds JWT authentication, email OTP verification, role-based access control, Fernet-encrypted credential handling, and an admin/audit console.

An honest note on the tiers

Unlike some of our other multi-tier products, WithAuth is not simply "NoAuth plus auth" — NoAuth's usage-logs endpoint is replaced by WithAuth's audit-log system rather than kept alongside it. Both tiers ship real usage/activity tracking, just through different mechanisms suited to each tier's audience.

ai-wrapperfastapinextjsmongodbpostgresqlllmchatbotlangchainmulti-tier

Key features

Unified Multi-Provider LLM Chat

One REST endpoint routes to OpenAI, Anthropic, Gemini, or Groq via LangChain's init_chat_model, based on the model requested.

Persistent Chat Threads

Multi-turn conversations with automatic thread titling from the first user prompt, stored in MongoDB or PostgreSQL.

Usage Logging (NoAuth)

Every chat call automatically logs token/request usage, queryable via a paginated endpoint.

JWT Auth, RBAC & Admin Console (WithAuth)

Email OTP verification, role-based access control, Fernet-encrypted credential storage, and a full audit trail of auth and admin actions.

Model & Provider Auto-Detection

Reports which LLM providers and models are active based on which API keys are configured in the environment.

What's included & Fit

Included

FastAPI backend source code for the tier you purchase

Next.js + TypeScript frontend source code, wired to the backend API

Database models and async database layer (Motor/PyMongo or SQLAlchemy)

Backend and frontend .env.example configuration templates

Postman collection for the full API surface

Not included

Hosting, domain, or database subscription costs

LLM provider API keys

Payment/billing integration

Automated test suite

Streaming (token-by-token) chat responses

Target audience

Indie hackers prototyping an AI product idea

Developers building internal AI tools

Teams who want a ready-made multi-provider LLM backend to build a branded product on top of

Perfect for

Rapid prototyping of a multi-provider AI chat product (e.g. SEO copy generator, legal assistant, customer Q&A tool)

Internal company chatbot, with or without login

A branded AI wrapper product with user accounts, billing readiness, and admin oversight (WithAuth tiers)

Not suitable for

Projects requiring streaming, token-by-token chat responses (see the Streaming Chatbot product instead)

Projects requiring document upload or RAG (see the Document Workflow or LangGraph RAG Agent products instead)

AI Wrapper Kit · WithAuth + MongoDB

$59

one-time payment

Instant download Secure checkout Refund if we can't fix it Commercial license Response in 48h

Details

commercial License

Email Support

Languages

Next.jsReactTypeScriptTailwind CSSFastAPIPythonMongoDBPostgreSQLSQLAlchemyAlembicLangChain

Status

Version1.0.0

Last updatedNov 2026

Impact

30+ hours saved

Estimated dev time

~10 min setup

Time to first run

$59