nguyenphutrong/quotio

Description and use

**Brief summary**
Quotio is a native mac‑OS menu‑bar utility that aggregates multiple AI service subscriptions (Claude, Gemini, OpenAI, Qwen, Antigravity) into a single interface, showing real‑time usage quotas and automatically failing over to the next provider when limits are reached. It is built in Swift, has attracted over 4 k stars on GitHub, and targets developers who need seamless, cost‑aware access to AI coding assistants such as Claude Code, OpenCode and Droid.

**Value proposition**

• **Unified billing & quota visibility** – developers no longer juggle separate accounts; Quotio displays remaining tokens/credits for each provider and lets you switch instantly, reducing downtime and unexpected over‑charges.
• **Smart auto‑failover** – when a model’s quota is exhausted, the app reroutes requests to an alternate provider, keeping CI pipelines and AI‑assisted tools running without manual intervention.
• **Developer‑centric integration** – the library exposes simple Swift APIs and a CLI, making it easy to embed quota checks or payment‑flow hooks into internal tooling, prototype checkout experiences, or automate PSP (payment service provider) operations.

**Practical adoption path**

1. **Proof‑of‑concept** – clone the repo, run the provided example project, and verify that the menu‑bar UI correctly reads quotas from your API keys.
2. **Read‑me validation** – follow the quick‑start guide to add your credentials (Claude, Gemini, OpenAI, etc.) and test the auto‑failover by artificially limiting one quota.
3. **Integrate** – import the Swift package into your macOS app or CI script, call the QuotaManager API to fetch remaining credits before each AI request, and optionally hook into your billing backend to log usage.
4. **Iterate** – expand the proof‑of‑concept into a small internal tool (e.g., a build‑agent wrapper) before rolling it out to production services.

**Production readiness**

• **Maturity**: Medium. The project is actively maintained (last commit 2026‑05‑11), has a strong community signal (4 383 stars, 286 forks), and the core functionality is stable for prototyping.
• **Dependencies**: Pure Swift/macOS, but relies on each provider’s authentication flow; you’ll need to manage API keys and possibly rate‑limit handling yourself.
• **Risks**: Integration steps are not fully documented in the metadata, so expect some initial setup effort to map your PSP/billing workflow to Quotio’s API. Conduct a small PoC to gauge configuration complexity and verify that auto‑failover meets your latency requirements before committing to production.

Overall, Quotio offers a compelling way to streamline AI‑service billing and reliability for macOS‑based development environments, provided you allocate time for a modest integration validation.

Use in a workflow

nguyenphutrong/quotio helps integrate monetization, billing, or PSP flows faster.

• integrate billing or checkout
• evaluate PSP flows
• automate payment operations

Limitations and review notes

Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.