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tunnel-client
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tunnel-client

Active·★ 375·Apache-2.0·Updated 2026-09-10
★ Essential★ Hidden Gem

`tunnel-client` is a customer-run agent that securely connects private or localhost Model Context Protocol (MCP) servers to OpenAI products like ChatGPT and Codex through an OpenAI-hosted tunnel. It enables secure access for AI models without exposing the MCP server to the public internet, simplifying deployments in restricted network environments.

tunnel-client is currently grouped under LLM Infra, which makes it easier to evaluate through workflow fit instead of isolated features alone. Based on the available data, it leans most heavily toward Securely connects private or localhost MCP servers to OpenAI products like ChatGPT and Codex. and Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.. The listed license is Apache-2.0, which is useful when adoption constraints matter. It also shows measurable community traction with 375 GitHub stars.

#Secure Tunnel#API Proxy#LLM Connectivity#Private Network#OpenAI Integration#Go SDK#Deployment Agent
$ Install
$ make admin-ui && go build -o bin/tunnel-client ./cmd/client
↗ Visit site★ GitHub
01

Features

01Securely connects private or localhost MCP servers to OpenAI products like ChatGPT and Codex.
02Operates as a daemon with health checks, metrics, and an administrative UI for operational visibility.
03Supports flexible MCP server integration via Streamable HTTP, stdio, or in-memory transports.
04Offers an embeddable Go SDK for direct integration into Go applications.
02

Why choose it

+Securely connects private or localhost MCP servers to OpenAI products like ChatGPT and Codex.
+Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.
+Covers 7 supported environments or platforms, which is helpful for broader deployment needs.
+Ships with a public repository and a Apache-2.0 license, which makes adoption and review easier.
03

Trade-offs

!There are at least 8 related tools in the same category, so the best choice is easier to make after side-by-side comparison.
04

Compatibility

Go
SDK/Runtime
Verified via docs
Docker
Deployment
Verified via docs
Kubernetes
Deployment
Verified via docs
Linux
OS
Verified via docs
MacOS
OS
Verified via docs
Windows
OS
Verified via docs
05

Quick start

1
$ make admin-ui
2
$ go build -o bin/tunnel-client ./cmd/client
06

Use cases

↳Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.
↳Deploying an operator-visible daemon for an MCP server before connecting it to external APIs, ensuring readiness and observability.
↳Integrating directly into a Go application using the Go SDK to bridge an in-memory MCP server with OpenAI tunnels.
07

How it compares

≈tunnel-client sits in the LLM Infra category, so it makes more sense to evaluate it alongside tools like MetaGPT instead of in isolation.
≈If your main need is closer to "Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.", that use case is a better lens for comparison than broad feature checklists alone.
≈tunnel-client uses a Apache-2.0 license, and community traction are both easier to judge in category context.
08

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Related searches

tunnel-client AlternativesBest LLM Infra Tools 2026Open Source LLM Infratunnel-client Tutorialtunnel-client Vs CompetitorsSecure TunnelAPI ProxyLLM Connectivity

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On this page
01Features02Why choose it03Trade-offs04Compatibility05Quick start06Use cases07How it compares08Alternatives
Stats
GitHub Stars★ 375
Last commit1d ago
StatusActive
LicenseApache-2.0
CategoryLLM Infra
Trend (30d)
+15↑ 2.8%
Links
Documentation↗Discussion↗Issues↗Releases↗

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