carbon

One record from quote to cash. Link quotes, orders, jobs and invoices.

Generate configurations from rules. Control BOMs, routings and revisions.

Trace every unit to its source. Follow lot and serial genealogy in both directions.

Contents

• Why Carbon
• Features
• Get Carbon
• API & MCP
• Architecture
• Tech Stack
• Monorepo
• Local Development
• Commands
• Security
• Contributing
• License

Why Carbon

Manufacturing teams often run planning, production, quality and accounting in separate systems. That creates predictable problems:

• BOMs and revisions are re-keyed between engineering and production
• Material shortages surface after work has started
• Job costs and quality records are reconstructed after the fact
• Integrations depend on vendor-specific tools and consultants

Carbon puts ERP, MRP, MES and QMS in one Postgres database you can inspect, own and extend. Engineering, planning, production, quality and accounting update the same data, without synchronization jobs between separate product databases.

Carbon is an open-source alternative to NetSuite, Epicor, SAP Business One, Plex, Odoo and ERPNext. It supports complex assembly, contract manufacturing, configure-to-order and high-mix, low-volume production. See all comparisons.

Features

ERP — Inventory & Costing	Quotes, orders, purchasing, inventory, invoicing and actual job costs
MRP — Planning	Demand, supply planning, versioned BOMs and routings, finite-capacity scheduling
MES — Execution	Digital travelers, operator terminals, 3D instructions, barcode and labor capture
QMS — Quality	Inspections, FAI, nonconformance, CAPA, calibration and risk management
Traceability	Forward and backward lot and serial genealogy
Engineering	Multi-level BOMs, revisions, change orders, supersession and product configuration
Accounting	General ledger, journals, multi-entity, multi-currency and accounting integrations
Workflows	Rule-based automation with triggers, actions and run history
Maintenance & Assets	Scheduled maintenance, fixed assets and kanban replenishment
API, Webhooks & MCP	Typed REST operations, event-driven webhooks and a permission-aware MCP server
Custom Fields	Extend records without changing the core schema
Integrations	Onshape, SolidWorks, Paperless Parts, Linear, Jira, Slack, Ramp, Stripe and Zebra

See the full roadmap for what's next.

Technical highlights

• Generated types shared by the database, application and API
• Postgres row-level security and tenant-scoped records
• Role- and attribute-based access for employees, customers and suppliers
• Realtime database subscriptions
• Shared identity and permissions across the application, API and MCP server
• Explicit dependency graphs for manufacturing operations
• Rust geometry services for STEP conversion and assembly motion planning

Get Carbon

Carbon Cloud	Managed application, database, updates and backups. Start a 30-day trial without a sales call.
Self-hosted	Run Carbon in your VPC, on-prem or air-gapped. See the self-hosting guide.
Develop locally	Run the application and supporting services from source. Follow Local Development.

API & MCP

The Carbon API exposes the same manufacturing operations used by the application. Each operation validates its input, updates dependent records and enforces the authenticated identity's permissions. Operations are available through two interfaces with the same arguments:

• HTTP: POST https://app.carbon.ms/api/v1/{module}/{operation}, with a published OpenAPI spec for generating a typed client in any language
• MCP: as tools for hosted or local AI agents, scoped to the permissions of the API key or signed-in user

Create a key under Settings → API Keys, then:

curl -X POST https://app.carbon.ms/api/v1/sales/getSalesOrders \
  -H "Authorization: Bearer $CARBON_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "args": { "limit": 10 } }'

Self-hosted deployments serve the same API at /api/v1. The Data API provides direct access to permitted tables and views when an operation is not available in the service layer.

API keys and MCP are included with Business and Enterprise plans. Using them in a self-hosted deployment requires a commercial license.

Architecture

ERP and MES are React Router apps over a single Postgres database. Permissions (row-level security), computed totals and change events live in the database itself; background work runs through Inngest, which calls back into the ERP to execute jobs. The architecture guide follows one click all the way down.

Tech Stack

Layer	Technology
Apps	React Router 7 on Vite, TypeScript
UI	Tailwind 4, Radix, React Aria, TanStack Table and Query
Forms	Zod with @carbon/form
Database	Postgres with row-level security, PostgREST and Kysely
API	oRPC with OpenAPI, MCP server
AI	AI SDK (Anthropic, OpenAI)
Jobs & events	Inngest
Cache	Redis
3D & CAD	three.js / react-three-fiber; Rust with OpenCASCADE and FCL
Documents	React PDF, React Email, TipTap
i18n	Lingui
Tooling	pnpm, Turborepo, Biome, Vitest
Docs	Next.js + Fumadocs
Hosting	AWS via SST, or self-hosted with Docker

Monorepo

A pnpm + Turborepo monorepo:

carbon
├── apps         # ERP, MES and the Rust assembler
├── packages     # shared TypeScript packages
├── crates       # Rust crates behind the assembler (CAD conversion, collision, motion planning)
└── docs         # docs.carbon.ms, with content and glossary as @carbon/content

/apps

App	Description
erp	ERP: sales, purchasing, inventory, planning, quality, accounting
mes	MES: the shop floor app, run on tablets next to the machines
assembler	Rust geometry service: STEP → GLB and assembly motion planning
academy	Training
starter	Example app built on the API

/packages

Package	Description
@carbon/database	Schema, migrations, generated types and database clients
@carbon/auth	Authentication, RBAC, sessions, API keys and OAuth
@carbon/api	API contract: the generated operation manifest behind the Carbon API and MCP
@carbon/react	Shared UI components (Radix, React Aria, Tailwind)
@carbon/form	ValidatedForm and field components for zod + FormData
@carbon/jobs	Inngest background jobs: events, integrations, notifications, workflows
@carbon/planning	MRP and scheduling engines
@carbon/server-functions	Transactional writes shared by the apps, API and jobs (posting, issuing, converting)
@carbon/documents	PDFs, email templates, ZPL labels, QR and barcodes
@carbon/printing	Printer routing, label queue and ProxyBox delivery
@carbon/viewer	3D models and animated assembly instructions (react-three-fiber)
@carbon/files	File handling: images, HEIC, CAD formats
@carbon/tiptap	Rich-text editor extensions and components
@carbon/onboarding	Implementation Hub: guided company setup
@carbon/notifications	Notification event taxonomy shared by apps and jobs
@carbon/workflows-core	Community-licensed contracts for workflow triggers
@carbon/locale	Lingui i18n runtime for ERP and MES
@carbon/lib	Server utilities: event system, Inngest client, SMTP, Slack
@carbon/kv	Redis client and rate limiting
@carbon/env	Validated environment variables, secrets kept server-side
@carbon/logger	Isomorphic logger built on LogTape
@carbon/utils	Pure shared utilities (dates, precision, BOM, formatting)
@carbon/stripe	Stripe billing (Carbon Cloud only)
@carbon/ee	Enterprise features and integrations (commercial license)
@carbon/checks	Conformance checks that keep the codebase consistent
@carbon/dev	The crbn dev CLI: worktrees, Docker stacks, dev URLs
@carbon/harness	Harness for AI coding agents working on this repo
@carbon/config	Shared Vitest, TypeScript and Tailwind configuration

Local Development

Prerequisites: Docker, Node.js 22 and pnpm (via Corepack). On Windows, use WSL or Git Bash.

git clone https://github.com/crbnos/carbon.git && cd carbon
corepack enable && pnpm install
cp .env.example .env
pnpm dev

pnpm dev boots the whole backend in Docker (Postgres, PostgREST, auth, storage, realtime, Inngest, Redis and a mail catcher), applies migrations, generates types and starts the apps:

Surface	URL
ERP	http://localhost:3000
MES	http://localhost:3001
API	http://localhost:54321

Sign in as test@carbon.ms: the dev stack seeds that user and skips the magic link. To fill a company with a full demo story (items, BOMs, orders, jobs, inspections, journals), seed one of the industry datasets (satellite, robotics, precision, motor):

pnpm db:seed:dev -- --email test@carbon.ms --dataset satellite

No external accounts are needed to run locally. Email, Google/Microsoft sign-in, Stripe, PostHog and AI providers are all optional and configured in .env; see environment variables.

Worktrees and the crbn CLI

pnpm dev is shorthand for crbn up --no-portless. Run source ./setup.sh once to put crbn on your PATH and you get a separate, isolated stack per git worktree, so several branches can run side by side, each on its own HTTPS .dev URLs via portless:

crbn checkout -b feat/my-thing   # new branch + worktree off HEAD
crbn up                          # boot this worktree's stack at erp.<branch>.dev
crbn checkout 760                # check out PR #760 into its own worktree
crbn status | down | reset       # ports and health, stop, wipe and reboot

The full command reference is in the local development guide.

Optional: the assembler geometry service

assembler is a Rust service (STEP → GLB + assembly motion planning) over C++ FCL and OpenCASCADE. ERP/MES run fine without it — set it up only if you need the 3D /convert and /plan endpoints.

1. Toolchain + native build deps (macOS):

   curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh   # Rust, if not already installed
   brew install fcl cmake ninja draco                               # collision libs (+ libccd/eigen/octomap), build tools, Draco mesh compression
   

   On Linux, install the equivalents from your package manager: libfcl-dev libccd-dev libeigen3-dev liboctomap-dev libdraco-dev cmake ninja-build plus a C/C++ toolchain.

   ./setup.sh already installs Draco on macOS. If yours lives outside the Homebrew keg (/opt/homebrew/opt/draco on arm64), point draco-bridge's build at it with DRACO_PREFIX=/path/to/draco cargo build.

2. Build OCCT once — a patched static OpenCASCADE, cached in ~/.cache/carbon-occt. Slow (~15–30 min) but one-time per machine; re-running is a no-op once cached:

   ./apps/assembler/scripts/build-occt.sh
   

3. Build the service — seconds once OCCT is cached (build.rs finds it automatically):

   cargo build --release -p assembler
   

crbn up spawns the binary when it's present. Verify it's up with curl -sf "$ASSEMBLER_SERVICE_URL/health" (the URL is in your worktree's .env.local) or by watching the asm | lines in the crbn up output. Without the binary the rest of the stack still runs — only /convert and /plan are unavailable.

Restoring a production snapshot

To restore a production database snapshot locally, use crbn restore. It handles both plain-text .backup and custom-format .dump archives, drops and rebuilds the public schema, realigns internal sequences, resets storage metadata, then applies any migrations the backup predates and regenerates types.

1. Export a backup of your production database with pg_dump.

2. Run it from your worktree root:

   crbn restore /path/to/db_cluster.backup
   # …or for .dump archives:
   crbn restore /path/to/postgres_YYYYMMDD.dump
   

   It prompts before replacing the database. The stack must already be running (crbn up) — a restore rewrites the auth and storage schemas, which GoTrue and Storage build through their own migrations when those containers boot, so crbn restore refuses rather than restore into an uninitialized stack.

   To also get local admin access, pass your production email — your account is upgraded to Admin in the companies it already belongs to and the password is reset locally:

   crbn restore /path/to/backup.backup --admin-email you@example.com
   # Optional: set a custom local password (default: localpass)
   crbn restore /path/to/backup.backup --admin-email you@example.com --admin-password mypass
   

   Useful flags: --no-scrub-emails keeps real addresses (see the warning below), --mode prod restores exactly as-is without localizing config/webhooks/integrations, --no-migrate / --no-regen skip the trailing steps, --yes skips the prompt.

   Emails are scrubbed by default — every address is rewritten to @example.test (your --admin-email is preserved so you can still log in). If you pass --no-scrub-emails, real production addresses will be present in the local DB; ensure local email sending is disabled or pointed at a sandbox (e.g. Mailpit) before triggering any email flows.

   Note: storage.objects is truncated by default, so a restore does not populate local file storage — kept rows would reference files that only exist in the source environment's backend. Pass --keep-storage-objects to retain the metadata (and the backup's buckets) anyway; downloads will still 404, but the rows are there for work that needs realistic storage volume.

The underlying script, scripts/restore-database.sh, can still be invoked directly — it takes the same options as environment variables (SCRUB_EMAILS, ADMIN_EMAIL, ADMIN_PASSWORD, RESTORE_MODE), but note it defaults to not scrubbing emails and leaves the trailing pnpm db:migrate / pnpm db:types to you.

Commands

Command	Description
pnpm dev	Boot the stack and apps on localhost
pnpm db:migrate:new <name>	Create a database migration
pnpm db:migrate	Apply pending migrations
pnpm generate:types	Regenerate database types after a migration
pnpm db:seed:dev -- --dataset <key>	Seed a demo company
pnpm lint / pnpm test	Biome lint / unit tests
pnpm exec turbo run typecheck --filter=<pkg>	Typecheck one package
pnpm --filter <pkg> <cmd>	Run a command in one workspace

This project uses Biome for formatting and linting; install the VS Code extension for format-on-save.

Security

Found a vulnerability? Please email support@carbon.ms instead of opening a public issue. We respond within 3 business days and credit reporters once a fix ships. The full policy is in SECURITY.md.

Security is enforced by the database, not left to application code:

• Tenant isolation in Postgres. Every table is scoped to a company and guarded by row-level security, so a query can only see its own company's rows.
• Granular permissions. Role-based access per module and action for employees, customers and suppliers, applied the same way in the app, the API and MCP.
• Scoped API keys. Keys carry explicit permissions, are stored only as hashes and are rate limited per key.
• Sign-in. Passkeys, SSO, and enforced two-factor authentication on the Business plan.
• Audit log. A record of who changed what and when, on the Business plan.
• Your perimeter. Deploy in your VPC, on-prem or air-gapped to keep CUI inside infrastructure you control while supporting ITAR and CMMC requirements.

Contributing

We welcome contributions of all sizes. Read CONTRIBUTING.md to get started, and say hi in Discord. Good first issues are labelled good first issue.

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License

Carbon is open core. Everything in this repository is licensed under AGPLv3, except the Enterprise files (packages/ee and any file whose name contains .ee.), which are under the Carbon Commercial License. See Licensing for what that means in practice.