Merit-Systems

    Merit-Systems/echo

    The User Pays AI SDK

    llm
    ai
    frontend
    anthropic
    billing
    gemini
    openai
    react
    TypeScript
    NOASSERTION
    547 stars
    89 forks
    547 GitHub watchers
    Updated Oct 30, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    The project lists 13 contributors on GitHub.

    Gained 29% more stars in the last 90 days than in the 90 days before.

    Use Cases & Benefits

    • Provides a TypeScript SDK that simplifies integrating user authentication, usage billing, and payment processing for AI services.
    • Eliminates the need to manage API keys, build auth flows, or set up payment systems, enabling quick deployment with universal user balances.
    • Use for adding seamless OAuth-based user sign-in and billing to AI-powered Next.js applications.
    • Use for integrating usage metering and revenue tracking in React single-page applications using the Echo React SDK.
    • Use for rapidly launching AI apps with built-in billing and user account management using provided templates and example projects.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    Other

    GitHub could not identify this license; read the LICENSE file before depending on it.

    Community files

    • README: present
    • Contributing guide: present

    Watch-outs

    • License not identified by GitHub; read the LICENSE file before depending on it.
    • No GitHub releases; pin a commit or tag instead of a release.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    From Vercel AI SDK to Revenue in 5 Lines

    Replace your OpenAI import with Echo. Get instant OAuth, user accounts, and usage billing.

    Read the docs to get started or read our announcement to learn more.

    Consider giving a star on GitHub!

    Skip the complexity - No API keys to manage, no auth flows to build, no payment processing to set up. Go live in minutes.

    OAuth magic - Users sign in once, get a universal balance that works across all Echo apps.

    Universal balance - Your users' credits work across every Echo-powered app they use.

    Simplified payouts - Revenue hits your GitHub account directly. No Stripe dashboard, no merchant accounts. Learn more.

    Excerpt from the Merit-Systems/echo README on GitHub (NOASSERTION license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    89+0

    Open issues

    105-1

    Compared with peers in LLM

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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