opencode-claude-auth

MCP server · GitHub · ★ 1.3k · graded 2026-10-22Source linked

OpenCode 2 plugin that uses your existing Claude Code credentials — no separate login needed.

No outside reports on file

opencode-claude-auth requires API keys or tokens; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 21, 2026. Our opinion, not a code audit or security guarantee.

Was this verdict for Opencode Claude Auth helpful?

What it can access

Local filesNo local folder access notedLOW
Command executionRuns shell or system commandsREVIEW
Network reachConnects to outside service APINOTED
CredentialsRequires API key or tokenREVIEW
Package sourceGitHub (griffinmartin/opencode-claude-auth)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

No npm or PyPI package is listed. Install from source: github.com/griffinmartin/opencode-claude-auth ↗

All setup options ↓

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About Opencode Claude Auth

Opencode Claude Auth is an MCP server focused on Developer tools: OpenCode 2 plugin that uses your existing Claude Code credentials — no separate login needed.

It is hosted on GitHub at griffinmartin/opencode-claude-auth (1,311 GitHub stars). Based on its public metadata, its operational scope includes: requires api key or token.

Setup

Check these steps against the project’s own instructions before running anything.

No standalone npm or PyPI package is listed for this MCP server. Clone and inspect the source repository directly:

bash

git clone https://github.com/griffinmartin/opencode-claude-auth.git

Review the README and source files in https://github.com/griffinmartin/opencode-claude-auth (opens external site) before running any setup commands.

Why this grade

CC — Moderate risk signals

Signal-based grade (3/7 points): well starred on GitHub, public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

35/100

GitHub stars: 1.3k
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-29).

Check a specific version →

Risks to watch for

Credential & token exposure: Requires API keys or secrets in configuration. Store credentials in environment variables with read-only or minimum required scopes and rotate them regularly.
Dependency & version pinning: Distributed via GitHub (griffinmartin/opencode-claude-auth). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Opencode Claude Auth?

Opencode Claude Auth does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/griffinmartin/opencode-claude-auth.

Are there security reports about Opencode Claude Auth?

No reports found for this package in our research (last checked 2026-10-29). Opencode Claude Auth currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include credential & token exposure:, dependency & version pinning:.

Is Opencode Claude Auth actively maintained?

Opencode Claude Auth has 1.3k GitHub stars. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/griffinmartin/opencode-claude-auth before pinning it in production.

What are alternatives to Opencode Claude Auth?

Compare Opencode Claude Auth side by side with similar MCP servers in the Related tools section on this page, or browse all MCP servers on AgentArmorHQ.

Maintain or use Opencode Claude Auth? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade C for Opencode Claude Auth

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Opencode Claude Auth](https://agentarmorhq.com/api/badge/griffinmartin-opencode-claude-auth)](https://agentarmorhq.com/skills/griffinmartin-opencode-claude-auth)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/griffinmartin-opencode-claude-auth"><img src="https://agentarmorhq.com/api/badge/griffinmartin-opencode-claude-auth" alt="AgentArmorHQ Risk Grade for Opencode Claude Auth" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "griffinmartin-opencode-claude-auth"

Share with your security lead

Need sign-off to use opencode-claude-auth? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: opencode-claude-auth
- **Listing URL:** https://agentarmorhq.com/skills/griffinmartin-opencode-claude-auth
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 1.3k GitHub stars

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** Runs shell or system commands
- **Network reach:** Connects to outside service API
- **Credentials:** Requires API key or token
- **Package source:** GitHub (griffinmartin/opencode-claude-auth)

#### Recommended Hardened Setup
- **Source Repo:** https://github.com/griffinmartin/opencode-claude-auth
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 21, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Publisher: griffinmartin
Source code: github.com/griffinmartin/opencode-claude-auth
Est. context load: ~700 tokens / turn (~4 tool schemas, 0.35% of 200k context)
Popularity: 1.3k GitHub stars
Last updated: 2026-10-28
Last graded: 2026-10-22

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