LLM API gateway / management
One API is a self-hosted LLM API gateway that unifies many providers behind an OpenAI-compatible API with key management and redistribution.
Same problem, same approach. Swapping one for another is a config change, not a rewrite.
Choose for a Python-native AI gateway with SDK integrations and cost tracking, if you can accept a heavier runtime than a single binary.
The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]
Choose for a cloud-native API gateway with developer portal and open-platform features, if you prefer TypeScript and enterprise API governance.
Cloud native, ultra-high performance AI&API gateway, LLM API management, distribution system, open platform, supporting all AI APIs.🦄云原生、超高性能 AI&API网关，LLM API 管理、分发系统、开放平台，支持所有AI API，不限于OpenAI、Azure、Anthropic Claude、Google Gemini、DeepSeek、字节豆包、ChatGLM、文心一言、讯飞星火、通义千问、360 智脑、腾讯混元等主流模型，统一 API 请求和返回，API申请与审批，调用统计、负载均衡、多模型灾备。一键部署，开箱即用。
Choose for a multi-tenant gateway with built-in admin/billing and enterprise routing, when you need tenant isolation and billing out of the box.
🚀 Next Gen Multi-tenant AI One-Stop Solution. Builtin Admin & Billing System. Enterprise-Grade Unified LLM Gateway Support for 200+ Models And 35+ Providers, Load Balacing w/ Priority-base Routing, Cost Management, Chat Share, Cloud Sync, Credit/Subscription Billing, All File Parsing, Web Search, Built-in Model Cache.
Choose for a Go AI gateway with built-in failover, load balancing, and tracing, if you want observability with an OpenAI-compatible proxy.
⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing.
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
Choose for zero-cost access via reverse-engineered web UIs when you lack official provider keys; unofficial and less stable than managed API providers.
Chat2API enables zero-cost access to leading AI models by leveraging official web UIs. It supports providers such as DeepSeek, GLM, Kimi, MiniMax, Qwen, and Z.ai, and seamlessly integrates with tools like openlcaw, Cline, and Roo-Code.
Choose for a Go-based OpenAI-compatible server that reverse-engineers many chat interfaces, if you need free/unofficial provider access instead of official key management.
集成了openai-api、coze、deepseek、cursor、windsurf、qodo、blackbox、you、grok、bing 绘画 多款AI的聊天逆向接口适配到 OpenAI API 标准接口服务端。
An earlier or more limited way to do the job. Still the right call when you need something small, proven, or CPU-only.
Choose to expose only Windsurf/Devin models as OpenAI-compatible APIs when you need a narrow reverse proxy without multi-provider key management.
Turn Windsurf / Devin Desktop's 100+ AI models (Claude, GPT, Gemini, DeepSeek, Kimi, GLM, SWE) into OpenAI-, Anthropic- & Gemini-compatible APIs. Zero-dependency self-hosted reverse proxy for Claude Code, Cline & Cursor. 把 Windsurf/Devin 云端 100+ 模型变成三套兼容 API。
These projects were analysed and named one-api among their alternatives. The relationship is not symmetric — how one-api rates them is a separate judgement, made when one-api is analysed in its own right.
calls one-api “Pick when you need multi-tenant key management and redistribution of official LLM APIs, not free provider aggregation.”
The official gpt4free repository | various collection of powerful language models | opus 4.6 gpt 5.3 kimi 2.5 deepseek v3.2 gemini 3
calls one-api “Choose when you need self-hosted LLM key management, quotas, and secondary distribution with a single deployable binary.”
免费大模型API，支持免费调用GPT、DeepSeek等主流模型，免费额度10000点，每日刷新！另付费价格最低官方1-2折！
calls one-api “Choose for multi-tenant key management and resale with a web admin UI, but it expects provider API keys.”
Not just GPT4! Easy to use, Self-Hosted, Unlimited and Free WEB API of the latest A.I. like Gemini, DeepSeek, Claude and GPT