source registry for production SaaS systems

Start with API SaaS. Expand only after the wedge works.

Install API keys, usage tracking, rate limits, credits, Stripe billing, webhooks, API docs, and operating checks as editable source. Modules are the product. Recipes explain the path. Presets are convenience bundles.

Dry-run API SaaS Read the docs Open JSON registry

registry install

pnpm stackfoundry recipe api-saas-starter
pnpm stackfoundry add recipe api-saas-starter --target ./my-app --dry-run
pnpm stackfoundry diff api-keys --target ./my-app

Source lands in your repo for review, edits, and ownership.

157Module manifests

13Preset bundles

9Recipes

17Provider cards

Recipes

The API SaaS recipe is the front door.

Recipes document the recommended install order for complete SaaS workflows. The sharpest path is API SaaS: keys, usage, rate limits, credits, billing, docs, webhooks, visibility, and agent-ready install prompts.

API

api-saas-starter

API SaaS Starter

Launch an API SaaS with keys, usage, quotas, credits, billing, docs, and webhooks.

api-keysusage-meteringcredit-walletstripe-billingwebhook-delivery

B2B

enterprise-saas

Enterprise SaaS

SSO, SCIM, audit, security posture, access reviews, SLAs, and support ops.

enterprise-ssoscim-provisioningaudit-logmfa-securitysla-management

Ops

customer-intelligence

Customer Intelligence

Product analytics, large event ingestion, usage, billing, support, risk, and adoption signals.

posthog-analyticstinybird-analyticsusage-meteringplg-metrics

Edge

cloudflare-saas

Cloudflare SaaS

Workers, D1, KV, R2, Queues, Workflows, Durable Objects, Kumo UI, and Turnstile.

cloudflare-workerscloudflare-d1cloudflare-r2cloudflare-kumo-ui

Featured Paths

Presets are convenience. They are not the product.

Presets collect modules for a product shape, but traction comes from a painful narrow workflow. Start with API SaaS, then add B2B, AI, support, or provider-native paths.

Best wedge

api-saas-starter

API SaaS Starter

The traction wedge: keys, usage, quotas, credits, billing, webhooks, and docs.

api-keysusage-meteringcredit-walletstripe-billingwebhook-delivery

Core

next-saas

Next SaaS

The broad app foundation: database, billing, accounts, docs, ops, and growth.

drizzle-postgresapi-keysstripe-billingaudit-logresend-email

API

developer-platform

Developer Platform

API keys, agent-ready installs, public API surfaces, webhooks, usage, and docs.

api-keysagent-ready-installswebhook-inboxapi-docsusage-metering

Teams

b2b-saas

B2B SaaS

Team workspaces, invites, tenant context, permission models, and audit trails.

tenant-contextinvitescustom-rolespermission-matrixaudit-log

ai-saas

AI SaaS

Optional AI product modules for Vercel AI SDK chat, AI Elements, quotas, and metering.

ai-sdkai-elementsai-chatbot-sdkquota-enforcementusage-metering

Vercel

vercel-native

Vercel Native

Deployment and managed storage adapters for teams building on Vercel.

vercel-deployvercel-blobvercel-edge-configvercel-workflows

Edge

cloudflare-native

Cloudflare Native

Worker-first deployment, storage, queues, durable objects, and edge primitives.

cloudflare-workerscloudflare-d1cloudflare-r2cloudflare-kumo-ui

Adapters

provider-adapters

Adapter Examples

Provider adapter examples that show integration shape without locking in the base.

clerk-authresend-emailposthog-analyticssentry-monitoring

Coverage

saas-coverage

SaaS Coverage

A larger map of launch, security, billing, support, analytics, and ops modules.

security-headerssystem-healthsupport-widgettinybird-analytics

Module Families

Every broad category points back to concrete product pain.

Each card points at modules you can inspect, install, and maintain as source. The base scaffold stays small; API products can add only the systems they need to monetize and operate.

foundation

Foundation

Small base building blocks for layout, settings, UX states, and app shell polish.

next-saas-shellsettings-layoutcommand-menudata-tableloading-states

database

Database

Schema slices, migrations guidance, tenant-safe data patterns, and local backing stores.

drizzle-postgresneon-postgressupabase-postgrescloudflare-d1convex-backend

auth-and-tenancy

Auth and Tenancy

Account flows, workspaces, tenant context, invitations, roles, and enterprise access.

clerk-authaccount-modestenant-contextinvitesenterprise-sso

billing

Billing

Subscriptions, entitlements, one-time purchases, credits, invoices, dunning, and taxes.

stripe-billingautumn-billingautumn-entitlementscredit-walletone-time-purchases

api-product

API Product

The strongest wedge: keys, rate limits, usage, credits, public APIs, webhooks, and docs.

agent-ready-installsapi-keysunkey-api-keysunkey-rate-limitspublic-api-orpcwebhook-inbox

operations

Operations

Auditability, status, health, incident response, background jobs, and support workflows.

audit-logsystem-healthstatus-pagebackground-jobsincident-management

analytics-and-growth

Analytics and Growth

Product analytics, onboarding, lifecycle email, activation, retention, and feedback loops.

posthog-analyticstinybird-analyticsfeature-flagslifecycle-emailproduct-announcementspublic-roadmap

providers

Providers

Adapter modules for hosted services, kept optional so the base scaffold stays small.

resend-emailsentry-monitoringupstash-redistrigger-dev-jobsinngest-functions

optional-ai

Optional AI

Vercel AI SDK and AI Elements modules are available when useful, but are not required for the registry model.

ai-sdkai-elementsai-chatai-chatbot-sdkcloudflare-agents-sdk

docs-and-deployment

Docs and Deployment

Product docs, provider deploy paths, containers, and production-readiness notes.

docs-fumadocsdocs-mintlifyvercel-deploycloudflare-workersrailway-deploy

Provider Options

Choose the provider after you choose the capability.

Provider cards show selectable adapter paths. Favicon marks are compact identifiers; the module contract still stays source-first and editable.

Database ORM

drizzle

Drizzle

drizzle.team

adapter optiondrizzle-postgresneon-postgres

Billing adapter

stripe

Stripe

stripe.com

adapter optionstripe-billingbilling-portal

Billing adapter

autumn

Autumn

useautumn.com

adapter optionautumn-billingautumn-entitlements

API key adapter

unkey

Unkey

unkey.com

adapter optionunkey-api-keysunkey-rate-limits

Auth adapter

clerk

Clerk

clerk.com

adapter optionclerk-authauth-core

Email adapter

resend

Resend

resend.com

adapter optionresend-emaillifecycle-email

Analytics adapter

posthog

PostHog

posthog.com

adapter optionposthog-analyticsfeature-flags

Monitoring adapter

sentry

Sentry

sentry.io

adapter optionsentry-monitoringerror-boundaries

Deploy, storage, and AI

vercel

Vercel

vercel.com

adapter optionvercel-deployvercel-blobai-sdkai-elements

Edge platform and UI

cloudflare

Cloudflare

cloudflare.com

adapter optioncloudflare-workerscloudflare-d1cloudflare-r2cloudflare-kumo-ui

Postgres adapter

neon

Neon

neon.tech

adapter optionneon-postgresdrizzle-postgres

Postgres adapter

supabase

Supabase

supabase.com

adapter optionsupabase-postgresfile-uploads

Redis adapter

upstash

Upstash

upstash.com

adapter optionupstash-redisrate-limits

Jobs adapter

trigger.dev

Trigger.dev

trigger.dev

adapter optiontrigger-dev-jobsbackground-jobs

Functions adapter

inngest

Inngest

inngest.com

adapter optioninngest-functionsbackground-jobs

App framework

next.js

Next.js

nextjs.org

adapter optionnext-saas-shelldocs-fumadocs

UI runtime

react

React

react.dev

adapter optiondata-tablecommand-menu

Ship With Ownership

Browse the registry, install a path, and review the source like any other PR.

StackFoundry is designed for teams that want production SaaS capabilities without hiding the code behind generators or hard provider dependencies.

Documentation Existing app install GitHub Registry JSON