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Xai Grok Onboarding

starchild-ai-agent/official-skills

OAuth login for xAI subscriptions (X Premium, SuperGrok, etc.) so you can use Grok models without an API key. It's the standard device-code flow: generates a verification URL, you approve in browser, it polls for the token. Your subscription tier determines which models you get access to, from baseline grok-4.3 up to grok-build-0.1 and multi-agent variants on SuperGrok Heavy. The source is unusually thorough about failure modes, specifically calling out that some accounts get blocked by xAI's backend gate even with active subscriptions, in which case you fall back to the BYOK API key path instead. Worth knowing that connected models bypass the platform proxy and hit api.x.ai directly.

skills.sh installs
2.3K
GitHub stars
32
last updated
Aug 21, 2026
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Install

$ npx -y skills add starchild-ai-agent/official-skills --skill xai-grok-onboarding --agent claude-code

Installs into .claude/skills of the current project.

Files

🟢 xAI OAuth Onboarding

Use any active xAI account — X Premium, X Premium+, SuperGrok, or SuperGrok Heavy — for grok-4.3, grok-build-0.1, grok-4.20-* and multi-agent models. No separate API key needed.

This is standard OAuth 2.0 (RFC 8628 Device Authorization Grant), not a vendor-custom flow.

Tier → model access

The JWT issued by auth.x.ai carries a tier claim; higher tiers unlock more models from /v1/models. Observed mapping (xAI does not publish this officially):

TierSubscriptionApprox. model access
1X Premium ($8/mo)grok-4.3 baseline
2X Premium+ ($16/mo)+ grok-4.20-0309 variants
3SuperGrok ($30/mo)+ reasoning models
4SuperGrok Heavy ($300/mo)+ grok-build-0.1 + multi-agent

status() reports the user's tier so they know which models will be available.

This is a script-mode skill — no tools registered. Read this file, then call the exports from a bash block.

SKILL.md on GitHub

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Details

Repository
github.com/starchild-ai-agent/official-skills
Categories
Security, AI & Agent Building
First seen
Jul 14, 2026

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