SOLO
$99
one-time · launch price until Jan 14, 2027, then $199
- 1 developer
- The whole starter, every feature
- CRM, task tracker and feedback board demos
- Unlimited products of your own
- Lifetime updates
- Private repo + GitHub Discussions
NEWReproducible benchmarks shipped
The Rust SaaS foundation your team would have built — already built.
Axum, SQLx, Postgres and React, wired for organizations, roles, single sign-on, billing, background jobs and an admin panel. One binary and a Postgres. Deploys to Fly in minutes.
Get LaunchCrate
just setup && just dev- Rust
- Postgres 17
- React 19
Terminal session: just setup starts Postgres and applies 39 migrations, just dev serves the API and the web app, and just test-api passes 464 tests.
01 / WHAT'S IN THE CRATE
Every boring, critical piece. Done properly.
Opinionated where it saves you time, plain Rust everywhere else. No framework lock-in — it's your code from the first commit.
axum · sqlx · openapi
Checked at compile time
SQLx verifies every query against your schema at build time. Typed ids, one error envelope, and an OpenAPI spec with generated TypeScript types.
orgs · roles · invites
Multi-tenancy
Organizations, invitations and seat limits. Every query is scoped by org, and every guard asks one permission catalog, custom roles included.
sso · scim · passkeys
Enterprise sign-in
OpenID Connect single sign-on with DNS-verified domains, SCIM provisioning, passkeys, TOTP two-factor, magic links, Google and GitHub.
stripe · paddle · polar · lemon squeezy
Billing
Four providers behind one trait. Per-seat plans, yearly prices, coupons, one-time purchases, usage billing, idempotent webhooks and dunning.
queue · schedules · retries
Background jobs
A Postgres queue with retries, backoff, dead letters and scheduled tasks, claimed with
FOR UPDATE SKIP LOCKED. In the same process; no Redis.audit · webhooks · api keys
Built for integrations
An audit log, signed webhooks with retries and a delivery log, scoped and expiring API keys, and an MCP server for AI assistants.
/admin
Operator panel
Every user and organization in one place: disable accounts, change roles, impersonate with a recorded trail, and watch sign-ups and conversion.
env · fail fast
Config that checks itself
Refuses to boot on a missing variable, a weak JWT secret, https without secure cookies or half-configured billing. Mistakes fail the deploy, not production.
02 / ARCHITECTURE
One binary. One Postgres. Nothing exotic.
A layered monolith that's easy to reason about on day one and easy to split on day 500.
CLIENTS
Browser
API clients
AI assistants · MCP
ACME BINARY
tower layersrequest id · CORS · CSP · rate limits
web app
/api
/blog
domainorgs · billing · sso · audit
http:8080
workerjobs · schedules
INFRA
Postgresdata · sessions · job queue
EmailResend
FilesS3 · R2 · MinIO
03 / CODE TOUR
Read it before you buy it.
Handlers that read like the spec
A handler names the permission it needs and hands off to the service. Every route is described in the OpenAPI spec the build keeps honest.
pub(crate) async fn list( State(state): State<AppState>, auth: AuthUser, Path(org_id): Path<OrgId>,) -> Result<Json<Vec<Upload>>> { orgs::require_permission(&state.db, org_id, auth.user_id, Permission::UseFiles).await?; Ok(Json(service::list(&state, org_id).await?))}04 / PERFORMANCE
Smaller bills. Fewer pages at 3am.
A laptop serves over 10,000 signed-in requests a second, in under 100 MB of memory. Every number here comes from a script in the repo.
- signed-in requests
- 10,731req/s
- memory when idle
- 25MB
- boot
- 255ms
Release build · MacBook Pro M1 Pro · Postgres 17 and wrk (100 connections) on the same machine · rate limiting on. Rerun it with bench/run.sh.
05 / PRICING
Pay once. Build as many products as you like.
No subscriptions and no runtime phone-home: you own the code you ship. Launch prices until January 14, 2027.
TEAM
$499
one-time · launch price until Jan 14, 2027, then $599
- Everything in Solo
- Up to 5 developers
- Priority email support, within two working days
AGENCY
$799
one-time · launch price until Jan 14, 2027, then $899
- Everything in Team
- Unlimited developers
- Products built for clients
- A 30-minute onboarding call
Checkout opens soon. Prices in USD, plus tax where it applies.
06 / CHANGELOG
Shipped
- Oct 28Benchmarks you can rerunbench/run.sh measures the release build. API-key metering moved off the hot path: twice the throughput.
- Oct 27SCIM provisioning and demo productsOkta and Entra ID provision users and groups. A CRM, a task tracker and a feedback board built on the starter.
- Oct 26AI chat, MCP and security policiesStreamed AI chat with a token allowance, an MCP server, required two-factor and IP allowlists.
- Oct 25Passkeys, custom roles, notificationsSign in with a passkey, roles of your own, in-app notifications with email.
ROADMAP
Next
- IN PROGRESSLive demos of the three demo products
- Q4 2026Latency benchmarks at a fixed request rate
07 / FAQ
Questions
Access to the private GitHub repository: the whole starter, its docs, and the CRM, task tracker and feedback board demos. You clone it, and it’s your code.
Solo and Team cover products you build and own, as many as you like. Building for clients needs Agency: your client may run and change what you deliver, but not reuse the starter for other products.
Your team should be comfortable with Rust basics. The codebase avoids clever macros and trait gymnastics; it’s written to be read and changed.
Updates land in the repository and you merge them like any upstream, with git. Every change passes the same gate first: 460+ API tests and 100+ browser tests.
React 19 with TanStack Router and Query, and Tailwind v4, served by the same binary. The API is plain JSON with an OpenAPI spec and generated TypeScript types, so any other client works too.
Yes. There’s an AGENTS.md in every folder, step-by-step skills for common changes, llms.txt, and a module generator. In our test, an agent new to the repo shipped a tested feature in 30 minutes.
Start on the product this week.
Get LaunchCrate
just setup && just dev