Floodgate

io.github.sathergatePublished by GitHub account sathergatev0.1.1Updated Oct 24, 2026

Rate limiting for Next.js. Zero-dependency sliding window and token bucket.

VerifiedSTDIODesktop onlyCloud & InfrastructureDeveloper Tools

Overview

AI-generated overview

Floodgate is a local MCP server for the ratelimit-next package, giving an assistant access to zero-dependency sliding-window and token-bucket rate limiting for,

What you can do
The manifest lists no tools, so the server's capabilities come from its description and README. It exposes rate limiting for Next.js through the ratelimit-next package, offering sliding-window and token-bucket strategies with zero dependencies. The README says every package in the sathergate toolkit ships MCP tools, and shows a quick-start example creating a limiter with rules such as a limit of 60 per one-minute window. It is part of a broader toolkit of eight packages covering RBAC, image processing, feature flags, notifications, cron jobs, encrypted secrets and full-text search.
When to use it
Worth considering when you are building a Next.js application and want an assistant to help set up or configure rate limiting, or when you want to explore the wider sathergate toolkit of agent-native packages.
Requirements
Runs as a local process over stdio, installed from the npm package ratelimit-next. Requires a Node.js environment; no authentication, environment variables or headers are declared, and the README states no external services are required.
Before you install
The manifest lists no tools, so what the assistant can actually call is unclear until you inspect it. The README is a toolkit overview rather than server-specific documentation, and it mentions other packages such as encrypted secrets and notifications that are not part of this server. Review before relying on it in production.

Installation

In SourceWeft

  1. Open Floodgate in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

sathergate-toolkit

[CI] [License: MIT]

Agent-native infrastructure toolkit for Next.js. 8 packages, zero dependencies, MCP in every one.

Packages

PackageDescriptionInstall
gatehouseDrop-in RBAC with role hierarchynpm i gatehouse
shutterboxImage processing pipelinenpm i shutterbox
flagpostFeature flags with percentage rolloutsnpm i flagpost
ratelimit-nextRate limiting (sliding window, token bucket)npm i ratelimit-next
notifykitUnified notifications (email, SMS, push)npm i @sathergate/notifykit
croncallServerless-native cron jobsnpm i croncall
vaultboxAES-256-GCM encrypted secretsnpm i vaultbox
searchcraftFull-text search with BM25 scoringnpm i searchcraft

Or install them all:

bash
npm i @sathergate/toolkit

Quick Start

ts
import { createFloodgate } from "ratelimit-next";import { createSifter } from "searchcraft";import { createFlagpost } from "flagpost";
// Rate limitingconst limiter = createFloodgate({  rules: { api: { limit: 60, window: "1m" } },});
// Full-text searchconst search = createSifter({  schema: { title: { weight: 2 }, body: true },  documents: articles,});
// Feature flagsconst 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

bash
npm installnpm run buildnpm run testnpm run typecheck

See CONTRIBUTING.md for the full guide.

License

MIT

Source: README.md at commit f552fe8

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.1LatestSep 16, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.