AI Gateway & API Infrastructure
Projects that provide centralized routing, security, observability, and management for AI/LLM APIs and MCP traffic, often as self-hosted or Kubernetes-native gateways.
107 projects
See methodology for ranking rules; order uses public GitHub metrics within this scenario.
| Rank | Project | Stars | Forks | Updated | License |
|---|---|---|---|---|---|
| 1 |
OmniRoute
Open-source AI gateway: one endpoint, 290+ providers (90+ free), 500+ models, auto-fallback, token compression, MCP/A2A, works with Claude Code, Codex, Cursor, Cline, Copilot. |
58.1K | 8.0K | 08/29/26 | MIT |
| 2 |
CLIProxyAPI
Wrap Antigravity, ChatGPT Codex, Claude Code, Grok Build as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini 3.1 Pro, GPT 5.6 Series, Grok 4.5, Claude model through API |
49.2K | 7.6K | 08/29/26 | MIT |
| 3 |
kong
🦍 The API and AI Gateway |
44.1K | 5.2K | 08/16/26 | Apache-2.0 |
| 4 |
novu
The open-source communication infrastructure for agents and products |
39.7K | 4.4K | 08/29/26 | Other |
| 5 |
GPT_API_free
Free API for large models, supports GPT, DeepSeek, etc., 10k free points daily, paid plans at 10-20% of official price. |
41.4K | 2.7K | 07/28/26 | MIT |
| 6 |
claude-code-router
One local control plane for every AI agent: route across models, fuse new capabilities, orchestrate tools, and stay fully in control. |
37.0K | 3.1K | 08/27/26 | MIT |
| 7 |
nacos
an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications. |
33.3K | 13.3K | 08/28/26 | Apache-2.0 |
| 8 |
one-api
Unified API gateway for managing and redistributing LLM keys across multiple providers like OpenAI, Azure, and Claude, with a single binary and Docker support. |
36.6K | 6.8K | 01/09/26 | MIT |
| 9 |
free-llm-api-resources
A list of free LLM inference resources accessible via API. |
29.4K | 3.1K | 08/04/26 | Other |
| 10 |
9router
Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits. |
26.6K | 4.8K | 08/29/26 | MIT |
| 11 |
freellmapi
7.4 billion tokens per month. 34 free LLM providers. 635 free model endpoints. All behind one /v1 endpoint, plus any custom OpenAI-compatible endpoint. Smart routing, automatic failover, encrypted keys. Personal experimentation only. |
22.2K | 3.1K | 08/28/26 | MIT |
| 12 |
apisix
The Cloud-Native API Gateway and AI Gateway |
17.1K | 2.9K | 08/28/26 | Apache-2.0 |
| 13 |
casdoor
An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD |
14.3K | 1.8K | 08/28/26 | Apache-2.0 |
| 14 |
opa
Open Policy Agent (OPA) is an open source, general-purpose policy engine. |
12.2K | 1.7K | 08/28/26 | Apache-2.0 |
| 15 |
logto
🧑🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC. |
14.5K | 1.2K | 08/29/26 | MPL-2.0 |
| 16 |
camel
Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0. |
6.3K | 5.2K | 08/29/26 | Apache-2.0 |
| 17 |
opencodex
Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code |
12.5K | 921 | 08/29/26 | MIT |
| 18 |
nango
Build product integrations with AI. |
11.6K | 1.3K | 08/29/26 | Other |
| 19 |
gateway
A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API. |
12.9K | 1.3K | 05/25/26 | MIT |
| 20 |
openclaw-zero-token
OpenClaw: Use All Major AI Models NO API Token! Claude/ChatGPT/Gemini/DeepSeek/Doubao/Grok/Qwen/Manus/Kimi |
5.2K | 1.2K | 08/17/26 | MIT |