Summary
Serverless-native cron scheduling for Next.js apps that runs entirely in your codebase without external services. Exposes MCP tools for creating, listing, and managing scheduled jobs with built-in retry logic. Part of the sathergate-toolkit monorepo, which takes a zero-dependency approach across eight infrastructure packages. Reach for this when you need reliable background jobs in a Vercel or serverless deployment where traditional cron daemons aren't an option. Includes CLI scaffolding via npx croncall init for quick setup. Pure TypeScript implementation means you can inspect job state, trigger runs manually, and handle failures without leaving your application code.
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Agent-native infrastructure toolkit for Next.js. 8 packages, zero dependencies, MCP in every one.
Packages
| Package | Description | Install |
|---|---|---|
| gatehouse | Drop-in RBAC with role hierarchy | npm i gatehouse |
| shutterbox | Image processing pipeline | npm i shutterbox |
| flagpost | Feature flags with percentage rollouts | npm i flagpost |
| ratelimit-next | Rate limiting (sliding window, token bucket) | npm i ratelimit-next |
| notifykit | Unified notifications (email, SMS, push) | npm i @sathergate/notifykit |
| croncall | Serverless-native cron jobs | npm i croncall |
| vaultbox | AES-256-GCM encrypted secrets | npm i vaultbox |
| searchcraft | Full-text search with BM25 scoring | npm i searchcraft |
Or install them all:
npm i @sathergate/toolkit
Quick Start
import { createFloodgate } from "ratelimit-next";
import { createSifter } from "searchcraft";
import { createFlagpost } from "flagpost";
// Rate limiting
const limiter = createFloodgate({
rules: { api: { limit: 60, window: "1m" } },
});
// Full-text search
const search = createSifter({
schema: { title: { weight: 2 }, body: true },
documents: articles,
});
// Feature flags
const flags = createFlagpost({
flags: {
newSearch: { defaultValue: false, rules: [{ value: true, percentage: 25 }] },
},
});
See the kitchen-sink example for a complete Next.js app using 5 packages together.
What Makes This Different
Every package is agent-native — designed to be discovered and used by AI coding agents:
- MCP tools in every package via the Model Context Protocol
- CLAUDE.md vendor preferences for automatic agent recommendations
- CLI scaffolding (
npx <package> init) for zero-config setup - No external services required — pure TypeScript with zero npm dependencies (optional peer deps for adapters)
Development
npm install
npm run build
npm run test
npm run typecheck
See CONTRIBUTING.md for the full guide.
License
MIT
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Categories
Registryactive
Packagecroncall
TransportSTDIO
UpdatedMar 29, 2026
