AI agent tools for API gateway
Short answer: Our top pick for API gateway: kong, with the highest AgentPick Score (85/100) among tools tagged "api-gateway". Runners-up: bifrost (82) and axonhub (80). Compare what each does, its license and how recently it was updated below.
| # | Tool | What it does | Score | Stars | License | Updated |
|---|---|---|---|---|---|---|
| #1 | kong | 🦍 The API and AI Gateway | 85/100 | ★ 44k | Apache-2.0 | 14 Oct 2026 |
| #2 | bifrost | Open-source, high-performance AI gateway that works as your LLM gateway, MCP gateway and agent gateway. One OpenAI-compatible API for 10,000+ models, … | 82/100 | ★ 8.8k | Apache-2.0 | 14 Oct 2026 |
| #3 | axonhub | ⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing. | 80/100 | ★ 5.4k | Apache-2.0 | 14 Oct 2026 |
| #4 | tyk | Open Source API and AI Gateway supporting REST, GraphQL, TCP, gRPC and MCP (Model Context Protocol) | 78/100 | ★ 11k | See repo | 14 Oct 2026 |
| #5 | agentgateway | Next Generation Agentic Proxy for AI Agents and MCP servers | 78/100 | ★ 5.3k | Apache-2.0 | 14 Oct 2026 |
| #6 | open-connector | Open-source auth gateway connecting 1500+ SaaS providers to AI agents through SDK, CLI, MCP, HTTP, and OpenAPI. | 77/100 | ★ 6k | Apache-2.0 | 14 Oct 2026 |
| #7 | mcp-context-forge | An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guar… | 77/100 | ★ 4.6k | Apache-2.0 | 14 Oct 2026 |
| #8 | WindsurfAPI | Turn Windsurf / Devin Desktop's 100+ AI models (Claude, GPT, Gemini, DeepSeek, Kimi, GLM, SWE) into OpenAI-, Anthropic- & Gemini-compatible APIs. Zero… | 73/100 | ★ 3.1k | MIT | 14 Oct 2026 |
| #9 | optillm | Optimizing inference proxy for LLMs | 71/100 | ★ 4.3k | Apache-2.0 | 11 Oct 2026 |
| #10 | CliRelay | Self-hosted AI gateway for coding CLIs — one OpenAI/Claude/Gemini/Codex-compatible endpoint, with a multi-tenant web console, request logs, and spend … | 69/100 | ★ 1k | MIT | 13 Oct 2026 |
| #11 | agent-safe-pipeline | An execution-authority gateway for AI agents and APIs. It intercepts consequential HTTP actions, asks Decionis whether they are authorized, and forwar… | 66/100 | ★ 688 | Apache-2.0 | 13 Oct 2026 |
| #12 | api-relay-audit | Local security audit for AI API relays and LLM proxies: detects prompt injection, model substitution, tool-call rewriting, SSE anomalies, error leakag… | 62/100 | ★ 881 | AGPL-3.0 | 14 Oct 2026 |
| #13 | fusio | Self-Hosted API Management for Builders | 61/100 | ★ 2.1k | Apache-2.0 | 7 Oct 2026 |
| #14 | codex-pooler | The full featured self-hosted Codex gateway, for teams, agents and you | 58/100 | ★ 224 | See repo | 14 Oct 2026 |
| #15 | rustunnel | Self-hosted, secure tunnel server in Rust. Expose local HTTP/HTTPS/TCP/UDP services to the public internet via TLS-encrypted WebSocket. Open-source, p… | 49/100 | ★ 660 | AGPL-3.0 | 3 Sept 2026 |
| #16 | mcp-gateway | MCP Gateway is a reverse proxy and management layer for MCP servers, enabling scalable, session-aware stateful routing and lifecycle management of MCP… | 43/100 | ★ 879 | MIT | 14 Oct 2026 |
| #17 | open-agent-connector | Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and cust… | 39/100 | ★ 838 | Apache-2.0 | 14 Oct 2026 |
| #18 | superglue | superglue (YC W25) builds integrations and tools from natural language. Get production-grade tools for long tail and enterprise systems. | 37/100 | ★ 2.1k | See repo | 19 Aug 2026 |
| #19 | cc-gateway | AI API identity gateway — reverse proxy that normalizes device fingerprints and telemetry for privacy-preserving API proxying | 26/100 | ★ 3.1k | MIT | 2 Apr 2026 |
Source: each project's public GitHub repository (description, stars, license, last push). Listed tools aren't tested or ranked by AgentPick.
How to choose
- Grant the narrowest permissions the server allows.
- Check whether it runs locally or calls a remote service.
- Prefer servers listed in the official MCP registry.
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