Apps In Toss Harness MCP server for Codex
AI agent harness for Apps in Toss mini-app development — agent plugin, skills, and dev packages (pnpm monorepo)
How to install Apps In Toss Harness in Codex
Add it to Codex as an MCP server:
codex mcp add apps-in-toss-docs --url https://developers-apps-in-toss.toss.im/~gitbook/mcpCommand copied from the repo README (Codex's `codex mcp add` adds an MCP server to Codex). Check the README for any API key or setup it needs. Source: repo README.
New Codex plugins every Tuesday, install line ready to copy.
Stacks Weekly is one short email from GrokStacks and CodexStacks. Subscribe and get the free starter list: 20 Codex plugins worth installing first.
Confirmation email first. Unsubscribe anytime.
What it contains
Component list not published in a manifest we can read. See the repo README.
About this listing
Apps In Toss Harness is a community connector on GitHub by toss. Its README documents a Codex install and the repo documents a codex mcp add command. It passed the CodexStacks quality filter for repos found this way (at least 100 stars, pushed in the last 90 days, not a fork or a list). OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 28, 2026 (an install and load check, not a code review). It's one of 441 listings in the Developer Tools category (category assigned by CodexStacks from the repo's topics and description).
Apps In Toss Harness FAQ
How do I install Apps In Toss Harness in Codex?
Add it as an MCP server with codex mcp add apps-in-toss-docs --url https://developers-apps-in-toss.toss.im/~gitbook/mcp (copied from the repo README; check it for any API key or setup the server needs).
Is Apps In Toss Harness an official Codex connector?
No. Apps In Toss Harness is a community repo on GitHub by toss. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 28, 2026 (an install and load check, not a code review), so read the code before you install it.
What does Apps In Toss Harness include?
Component list not published in a manifest we can read. See the repo README.
Details
- Type
- Connector
- Category
- Developer Tools (assigned by us)
- Source
- Community
- Author
- toss
- License
- BSD-3-Clause
- GitHub stars
- 186 (at last sync)
- Last push
- 2026-10-27
- Source
- https://github.com/toss/apps-in-toss-harness
- Listed via
- GitHub search: README documents a Codex install
- Install check by CodexStacks
- Passed on Oct 28, 2026 with Codex CLI 0.163.0: Codex started its MCP server and listed its tools. proof · how we check
Something wrong or missing? Submit or improve this listing. Listings also refresh automatically every night.
For maintainers: badge and embeds
Maintain Apps In Toss Harness? Add the badge; it links to this page.
Markdown
[](https://codexstacks.com/p/apps-in-toss-harness/)HTML
<a href="https://codexstacks.com/p/apps-in-toss-harness/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/apps-in-toss-harness/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Apps In Toss Harness</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex connector</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">AI agent harness for Apps in Toss mini-app development — agent plugin, skills, and dev packages (pnpm monorepo)</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Apps In Toss Harness on CodexStacks](https://codexstacks.com/p/apps-in-toss-harness/)**: Community Codex connector.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
Also in Developer Tools
Rea
Reverse engineer anything with agents, from app behavior down to native binaries.
Skills (mattpocock)
Skills for Real Engineers. Straight from my .agents directory.
Agents
Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, Google Antigravity, and Pi
Playwright MCP
Playwright MCP server
Nuwa Skill
你想蒸馏的下一个员工，何必是同事。蒸馏任何人的思维方式——心智模型、决策启发式、表达DNA。Distill how anyone thinks.
Oh My Codex
OmX - Oh My codeX: Your codex is not alone. Add hooks, agent teams, HUDs, and so much more.