* feat(modal): add Modal Labs integration Modal has no public REST control plane — the Python/JS/Go SDKs all speak gRPC — so this covers the two surfaces that are reachable over HTTP: deployed Web Functions/Servers, and the OpenAI-compatible Endpoints API. Three operations: call a deployed function with proxy-token auth, generate a chat completion on an Endpoint, and list the models a token can reach. Auth sends the token pair as Modal-Key/Modal-Secret rather than the combined bearer form, so a Web Function that validates its own bearer token keeps the Authorization header free. Both URL fields require https since Modal terminates TLS everywhere, and a cleartext URL would leak the token. Chat completion declares request.modelInput so the system prompt and user message project to canonical placeholders before egress. Call Function deliberately does not — a Web Function runs arbitrary user code, and nothing proves its body reaches a model. /v1/models fields beyond `id` are inferred from OpenAI compatibility rather than printed in Modal's docs, so they are marked optional. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(modal): type the wire payloads and default chat to the shared endpoint Chat Completion required an endpoint URL and passed a blank one straight into modalOpenAiUrl, which throws — while List Models already fell back to the shared inference host and the generate-on-modal-endpoint skill tells agents to leave the field empty for Shared Endpoints. Skill-driven chat calls against the shared host failed instead of using that default. Chat now falls back the same way and the block field is no longer required. Replaces every `any` in the Modal tools with declared wire types for the OpenAI-compatible /v1 payloads. Fields stay optional because the shape comes from whichever inference engine backs the endpoint, so the readers keep their defensive `??` guards — the types exist so a future change to that mapping fails the compiler instead of shipping. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
npx sim-setup
Capabilities
- Connect 1,000+ integrations and every major LLM
- Add Slack, Notion, HubSpot, Salesforce, databases, and more
- Build agents visually, conversationally, or with code
- Ingest files, knowledge bases, and structured table data
- Monitor runs, logs, schedules, and workflow activity
One workspace, every surface
Chat and workflows are just the start — tables, files, and knowledge all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
Self-hosting
Requirements: Node.js 20+ and Docker.
npx sim-setup is an interactive wizard that creates a small sim/ deployment directory, provisions the database, generates secrets, writes .env, connects a Chat API key, and starts the published Sim images with Docker Compose. It does not clone the repository.
When it finishes, open http://localhost:3000.
Inside a cloned Sim repository, run bun run sim-setup to unlock the source-only local development and Kubernetes modes.
Reconfigure an optional capability without rerunning the full wizard:
npx sim-setup config
npx sim-setup add email
npx sim-setup add storage
npx sim-setup add sandbox
npx sim-setup add jobs
npx sim-setup add cache
npx sim-setup add knowledge
npx sim-setup add llm
npx sim-setup add integration slack
npx sim-setup config detects the effective local-dev, Docker Compose, or current-context
Helm configuration and reports configured, missing, or invalid capabilities and OAuth
integrations without printing credential values. This is separate from npx sim-setup status,
which reports whether installed services are running and healthy.
Manage your install from its directory:
npx sim-setup start | stop | restart # bring your install up / down / cycle
npx sim-setup update # pull and apply Compose images
npx sim-setup status # what's installed and healthy
npx sim-setup logs # follow logs
npx sim-setup doctor # diagnose configuration problems
npx sim-setup down # remove containers (data kept)
npx sim-setup reset # archive .env and wipe managed data
The setup package detects how you're running and acts accordingly. Use --dir <path> to create or manage a deployment somewhere other than ./sim.
Sim also supports local models via Ollama and vLLM. See the self-hosting docs for details.
Chat API Keys
Chat is a Sim-managed service. npx sim-setup connects a Chat API key for you — sign in when it opens your browser and the key is stored automatically. To view, create, or revoke keys later, go to sim.ai/selfhost/settings/chat-keys.
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the 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.




