oc-codex-multi-auth

oc-codex-multi-auth

oc-codex-multi-auth is an OpenCode plugin that runs Codex-style GPT models on your ChatGPT Plus/Pro subscription over OAuth. It keeps a named pool of ChatGPT accounts on your machine, rotates across them per request with health- and quota-aware selection, shows quota in the TUI prompt line, and ships a 24-tool codex-* command kit plus a standalone CLI. Account state stays local under ~/.opencode.

Use it when one ChatGPT account is not enough: you hit rate limits or quota windows, you split work across accounts and projects, or you run unattended agents that need JSON diagnostics and safe repair commands instead of one opaque auth file.

Using the official Codex CLI rather than OpenCode? The sibling project codex-multi-auth manages the same kind of account pool for codex itself.

What it does

• Account pool — OAuth login for multiple ChatGPT accounts, stored locally under ~/.opencode, with per-project pools under projects/<project-key>/ on by default.
• Rotation — health-scored hybrid selection picks the best enabled account per request, with cooldowns, automatic token refresh, and failover on rate limits.
• Model catalog — 12 base models covering 65 variants: GPT-6.1 Sol/Terra, GPT-6 Astra/Sol/Luna, the GPT-5.6 tiers, GPT-5.5, and more, routed through the stateless Codex contract (store: false + reasoning.encrypted_content).
• Quota in the prompt — the TUI prompt line shows remaining quota for the serving account, the whole pool, or banked reset credits, with rotating screens.
• codex-* tools — 24 in-session tools for switching, labeling, tagging, limits, diagnostics, and repair.
• Standalone CLI — the same package runs status, list, limits, doctor, and friends directly — no agent, no token cost.
• OpenCode V2 — OpenCode 2.0.16+ loads the plugin through a V2 adapter that shares the account pool and request pipeline.
• Keychain option — CODEX_KEYCHAIN=1 stores the pool in macOS Keychain, Windows Credential Manager, or Linux libsecret.

Install

Requires Node.js >=22.19 and OpenCode.

npx -y oc-codex-multi-auth@latest

With no flag, the installer only registers the plugin: it adds the plugin entry to ~/.config/opencode/opencode.json, enables the TUI quota plugin in ~/.config/opencode/tui.json, and refreshes the cached package. Your existing provider.openai model config is left alone. Add a flag to also install a model catalog:

Both opencode.json and opencode.jsonc are supported, comments and trailing commas included. Changed files are backed up first, and the installer refuses to overwrite a config it cannot parse.

To update later without touching either config file:

npx -y oc-codex-multi-auth@latest update

Removal is manual — see Uninstall / disable.

Quick start (5 minutes)

# 1. Sign in a ChatGPT account (browser OAuth, loopback callback on localhost:1455)
opencode auth login            # choose OpenAI, then a Codex OAuth method

# 2. Repeat login per account, then inspect the pool
oc-codex-multi-auth status
oc-codex-multi-auth limits

# 3. Diagnose anything off
oc-codex-multi-auth doctor

# 4. Run a first prompt (catalog installs only)
opencode run "Explain this repository" --model=openai/gpt-5.5 --variant=medium

Headless or remote shell? Four OAuth methods are available (browser, open URL manually, device code, manual URL paste) — see Getting Started.

OpenCode V2

OpenCode 2.0.16+ loads the plugin through a V2 adapter; the account pool, OAuth login, and request pipeline are shared with V1.

npx -y oc-codex-multi-auth@latest --v2
opencode service restart
opencode auth login   # OpenAI -> Codex OAuth (Add account — ChatGPT Plus/Pro)

--v2 writes a plugins entry only — no model catalog — and refuses an existing opencode.jsonc or V1 plugin entries rather than migrating them (edit the JSONC plugins list by hand instead). In V2, tool names normalize to codex_list, codex_switch, and so on; /codex-accounts and the Codex accounts palette command list the pool, and Codex quota details shows quota. V1’s entrypoint remains for OpenCode 1.18.29+. See Troubleshooting for V2-specific issues.

Command map

Two surfaces: 25 codex-* tools inside an OpenCode session, and a standalone CLI for everything else. The full argument reference is in docs/tools-and-cli.md.

Everyday standalone commands:

oc-codex-multi-auth status      # pool summary + storagePath
oc-codex-multi-auth list        # accounts, --tag <name> to filter
oc-codex-multi-auth limits      # 5h/weekly usage; --sort account|usage|reset --asc|--desc --refresh
oc-codex-multi-auth warm        # open every enabled account's usage window
oc-codex-multi-auth doctor      # diagnostics; --deep, --fix
oc-codex-multi-auth diag        # alias for doctor --deep
oc-codex-multi-auth health      # local token/account health
oc-codex-multi-auth dashboard   # dashboard guidance

These accept --json and --config-path <file> (install/update reject --config-path); status/list/limits redact identifiers unless --include-sensitive is passed. Via npx: npx -y oc-codex-multi-auth@latest status --json.

Rotation, in one paragraph

Each request picks the healthiest enabled account (rotationStrategy, default hybrid): health scores drop on failures and rate limits, cooldowns keep a burned account out of the running, tokens refresh as needed, and failover walks the pool within a bounded retry budget. Logging into the same account again updates its entry rather than duplicating it. Pools are per-project by default — the plugin walks up from the working directory looking for a project marker (.git, package.json, .opencode, and friends), stopping at your home directory; without a marker it uses global storage. Set CODEX_AUTH_PER_PROJECT_ACCOUNTS=0 to force the global pool.

Accounts whose plan quota is used up are left alone until it resets, even when they hold Codex credits. Set spendCredits: true to spend those credits once no account has plan quota left; a toast names the account and its remaining balance. See Spending Codex credits.

Models

--modern and --full install 12 base models covering 65 variants (selectable via --variant); --legacy installs the 65 as explicit IDs.

GPT-6 and GPT-5.6 models use the responses-lite request shape and the opencode client identity; other models use codex_cli_rs. Requests stay stateless: store: false with reasoning.encrypted_content for multi-turn continuity.

Retired IDs still route if typed — gpt-5.4-mini, gpt-5-codex, gpt-5.1-codex, gpt-5.1-codex-max, and gpt-5.1-codex-mini are rescued by the default fallback chains. The Daybreak-gated tiers (gpt-daybreak-blue-latest, gpt-daybreak-red-latest, gpt-5.6-cyber) are routed but deliberately not shipped; add them by hand if your workspace is approved. Full chain details live in docs/configuration.md.

Quota status

The TUI prompt line shows quota for the account that served the current session’s last request (OpenCode V2: the last request overall). quotaStatus.mode in ~/.opencode/openai-codex-auth-config.json controls it:

• active (default): the serving account’s remaining quota
• overview: the whole pool on one line, weighted by plan
• resets: banked rate-limit reset credits
• credits: accounts that still hold Codex credits once plan quota is gone

Pass a list (["overview", "resets"]) to rotate screens every rotateMs (default 5s). Percentages read as headroom left; set quotaDisplay: "used" to show consumption. All layout and forecast options are documented in docs/configuration.md.

Where state lives

Plugin settings are re-read per request — most edits need no restart. Boolean env overrides are truthy only for the literal "1". Common ones:

Full reference, field by field: docs/configuration.md.

For trusted JavaScript policies and offline validation, see Custom account rotation.

Troubleshooting in 60 seconds

oc-codex-multi-auth doctor --fix
opencode auth login

Most issues resolve by signing in again or running codex-doctor fix=true inside a session. The callback listener needs port 1455 free. Symptom-by-symptom fixes: docs/troubleshooting.md; common questions: docs/faq.md.

Documentation

Release notes

• Current stable: v6.31.0 — npx -y oc-codex-multi-auth@latest
• Full release archive: CHANGELOG.md

Terms and license

oc-codex-multi-auth uses OAuth account credentials and is intended for personal development use with your own ChatGPT Plus/Pro subscription. It is an independent open-source project, not an official OpenAI product; for production or commercial workloads, use the OpenAI Platform API. “ChatGPT”, “Codex”, and “OpenAI” are trademarks of OpenAI.

MIT license — see LICENSE.