* feat(tables): add export, import column creation, infinite row pagination - Add `/api/table/[tableId]/export` route streaming CSV/JSON downloads - Rename `/import-csv` route to `/import` and extend to auto-create new columns from unmapped CSV headers via `createColumns` form field - Switch table view to `useInfiniteQuery` so tables larger than 1000 rows fully load; reconcile created rows into the paginated cache so "New row" past 1000 no longer reverts on invalidate - Wire scroll-driven prefetch (600px from bottom) and pre-drain pages before append to keep new-row position consistent - Polish import-csv dialog flow and add Export action to header Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(table): route boundary validation through Zod contracts Switch the table query hooks and the import/export routes to the codebase's contract-based request pattern so the API validation audit and boundary policy ratchet pass. - `hooks/queries/tables.ts` now calls every endpoint via `requestJson(contract, ...)`; the only remaining raw `fetch` calls are the streaming export download and the multipart CSV upload, both annotated `boundary-raw-fetch:`. - The import and export routes parse `params`, the `format` query, and the multipart form fields with shared schemas from `@/lib/api/contracts/tables`. Two new contract schemas (`csvImportCreateColumnsSchema`, `tableExportFormatSchema`) cover the fields specific to these routes. - Bumps the audit baseline by one route to account for the new export endpoint. * fix(table): address PR bot review - Move the `isAppendingRowRef` reset into the create-row mutation's `onSettled` callback. The previous `try/finally` cleared the guard immediately after `mutate()` returned, before the request completed, so a rapid second click on "New row" could fire a duplicate create. - Drop the unused `addTableColumns` wrapper from `lib/table/service`. The CSV import flow only ever uses the transaction-bound `addTableColumnsWithTx`; the standalone wrapper was dead code. * fix(table): re-throw on infinite-query fetch error in append-row drain `useInfiniteQuery.fetchNextPage()` resolves (rather than rejects) when a page request fails — the resolved value carries `status: 'error'` while `hasNextPage` still reflects the last successful page. The drain loop in `handleAppendRow` relied on a thrown error to bail, so a failed mid-drain fetch could spin indefinitely and leave the append guard stuck on. Re-throw inside `fetchNextPageWrapped` when the result is an error so the caller's `try/catch` runs as intended. * fix(table): import TABLE_LIMITS from constants to keep server code out of client bundle The client hook `use-table-data.ts` was importing `TABLE_LIMITS` as a value from the `@/lib/table` barrel, which transitively pulls in `service.ts` and the `postgres` driver. Turbopack then tried to bundle `fs`, `net`, `tls`, and `perf_hooks` into the client component graph and the production build failed. Import `TABLE_LIMITS` directly from `@/lib/table/constants` (a pure constants module) and keep the type imports against the barrel. * fix(table): run batch unique check inside import transaction `checkBatchUniqueConstraintsDb` queried the global `db` connection, so inside a single import transaction (one tx wrapping all batches) the constraint lookup couldn't see uncommitted rows from prior batches — duplicates that crossed `CSV_MAX_BATCH_SIZE` boundaries slipped through. Accept an optional executor and pass `trx` from `batchInsertRowsWithTx` so the lookup observes the in-flight transaction state. --------- Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
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Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
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Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
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Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Sim Team


