# tunnel-client

> tunnel-client — openai-tunnel-client. Use this tool when you need to securely connect private or localhost servers to external APIs without exposing them to the public internet. The tunnel-client enables secure connections to ChatGPT, Codex, the Responses API, and AgentKit, solving the problem of safeguarding sensitive data during API interactions. It takes private server inputs and outputs secure API connections, ideal for use cases requiring enhanced security and data protection.

Canonical page: https://skillsregistry.net/skills/openai-tunnel-client  
JSON: https://api.skillsregistry.net/v1/skills/openai-tunnel-client

## Description

Customer-run client for Secure MCP Tunnel: connect private or localhost MCP servers to ChatGPT, Codex, the Responses API, and AgentKit without exposing them to the public internet.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/openai/tunnel-client)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "openai-tunnel-client"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/openai-tunnel-client` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/openai-tunnel-client/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt