Bismite

Gate, meter, and monetize any feature in 3 lines — and it never takes your app down.

An SDK-first billing & entitlements runtime on Stripe, built for AI apps. npm install bismite, get one API key, and the usage counter is handled. → Full pitch & API: packages/sdk/README.md.

const access = await bismite.check(userId, "chat-message");   // gate
if (!access.allowed) return Response.json({ upgradeUrl: access.upgradeUrl }, { status: 402 });
// ...expensive LLM call...
await bismite.record(userId, "chat-message", { tokens });     // meter

Use it in your app

npm install bismite

Then sign up at app.bismite.dev, create a project, and point the counter at your key:

import { bismiteCounter } from "bismite/hosted";
counter: bismiteCounter(process.env.BISMITE_API_KEY!)   // no Redis to provision

→ QUICKSTART.md — gated feature in 5 minutes, standalone (no clone). The rest of this README is for hacking on the monorepo itself.

Monorepo

Path	What
packages/sdk	The bismite SDK — check / record, local rule eval, counters
services/counter	The hosted usage-counter service (deployed at api.bismite.dev)
apps/dashboard	The hosted dashboard (app.bismite.dev) — signup, projects, keys, usage, billing
examples/nextjs-chat	Runnable Next.js chat app — the gate → meter → upgrade loop end to end
examples/nextjs-chat/public/landing.html	Marketing landing page (served at /landing.html) — hero, per-framework integration tabs, pricing
PRD.md, issues/	Product doc and the build issues

Hacking on the monorepo

pnpm install
pnpm test                                   # SDK + mapping unit tests
pnpm build                                  # build the publishable SDK (dist/)
pnpm counter                                # local counter (or set UPSTASH_* in the example's .env)
pnpm --filter nextjs-chat dev               # the example app

Open the example, send messages until you hit the free limit, and upgrade through real Stripe Checkout. See examples/nextjs-chat/README.md for the Stripe setup.

Status

Hosted platform is live: managed counter (api.bismite.dev) + self-serve dashboard (app.bismite.dev) with projects, API keys, usage meters, and Stripe upgrades. The SDK (gate/meter, Stripe plan sync, upgrade loop) ships on npm. Next: more pricing models and becoming the billing rail (merchant-of-record).