MAX-API-Next/MAX-API

MAX API – A Unified Gateway for AI Models and Agents

What it is – MAX API is an open‑source service that sits between your applications (or autonomous agents) and the upstream large‑language‑model providers. It offers a single, consistent HTTP API for many model vendors (OpenAI‑compatible, Claude, Gemini, Azure, Bedrock, Ollama, etc.) and adds a governance layer that handles authentication, routing, rate‑limiting, cost accounting, audit logging and “smart‑ops” observability.

Why it matters – In production‑grade AI systems you rarely rely on a single model. Teams need to switch providers, balance load, control spend, and keep a clear audit trail. MAX API abstracts those concerns so developers can focus on the agent or application logic while the gateway enforces policies and provides evidence for any automated decisions.

Key capabilities

Feature	What you get
Unified model entry point	One endpoint that speaks OpenAI‑compatible, Claude‑Messages, Gemini, Realtime, multimodal and async task protocols.
Multi‑vendor routing	Define channels, weights, priorities, model‑to‑channel mappings, automatic retries and graceful fail‑over across providers.
Identity & access control	Users, tokens, per‑token model scopes, groups, quotas, rate limits and admin roles.
Recoverable billing	Pre‑authorisation, idempotent settlement, refunds on failures, expression‑based pricing for async jobs.
Evidence‑driven SmartOps	Centralised dashboards for alerts, channel/model performance, system health and billing evidence; read‑only view for auditors.
Security hardening	Passkey/2FA step‑up, session revocation, scoped re‑verification for high‑risk actions.
Pluggable storage	SQLite for quick demos; MySQL, PostgreSQL (and Redis cache) for production, with GORM‑based migrations.
Extensible protocol adapters	Add new upstream APIs by configuring base URL, path, headers and response mapping.

Typical use cases

• Internal model gateway for a team that wants per‑project cost attribution.
• Backend for autonomous agents (e.g., RAG, tool‑calling agents) that need consistent authentication and budget limits.
• Multi‑cloud or multi‑vendor redundancy where traffic can be shifted without code changes.
• Compliance‑focused deployments that keep keys, logs and audit trails under the organization’s control.

Getting started – The project ships a Docker image. A single docker run command pulls the latest image, starts a container with an SQLite database, and exposes the UI at http://localhost:3000. For production you replace SQLite with MySQL/PostgreSQL, configure Redis, HTTPS and environment‑variable secrets (SESSION_SECRET, CRYPTO_SECRET, etc.).

Community & licensing – The repo is under the AGPL‑v3 license, encouraging contributions while ensuring any network‑served modifications stay open. A vibrant Chinese‑language community (QQ, WeChat) and documentation site (docs.max-api.ai) are provided for onboarding and support.

Bottom line – MAX API is a genuine, full‑stack open‑source project aimed at the engineering challenges of deploying and governing LLM‑based applications and agents. It is not a simple demo; it offers production‑grade features such as multi‑vendor routing, recoverable billing, and evidence‑first observability, making it relevant for anyone building AI‑powered services at scale.