* feat(integrations): SAP S/4HANA tools, block, and proxy with multi-deployment support * fix(sap_s4hana): address PR review comments - Validate baseUrl/tokenUrl in Zod schema and at runtime to prevent SSRF (https-only, deny loopback/link-local/cloud-metadata hosts) - Cap proxy token cache at 500 entries with LRU eviction - Add 30s timeout to outbound token, CSRF, and OData fetches - Make parseJsonInput return T | undefined so missing input is type-safe - Reset authType when deploymentType changes and surface OAuth fields whenever auth is not basic, so cloud_public users always see clientId/ clientSecret after switching from a basic-auth private deployment - Reject OData service names that are not uppercase identifiers and paths containing ".." or "." traversal segments Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): allow versioned service names; tighten proxy SSRF defenses - Permit ";v=NNNN" suffix on ServiceName regex so the four delivery tools (API_OUTBOUND_DELIVERY_SRV;v=0002, API_INBOUND_DELIVERY_SRV;v=0002) pass schema validation - Restrict subdomain to RFC 1123 label characters and region to lowercase alphanumeric short codes; run the constructed cloud_public host through assertSafeExternalUrl so a crafted subdomain (e.g. "evil.com#") cannot redirect requests carrying SAP credentials - Block RFC-1918 (10/8, 172.16/12, 192.168/16), 127/8, 169.254/16, and 0.0.0.0 via isPrivateIPv4, plus IPv4-mapped IPv6 variants (::ffff:10.0.0.1, ::10.0.0.1) so private internal hosts cannot be reached from baseUrl, tokenUrl, or the resolved cloud_public URL Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): catch hex-form IPv4-mapped IPv6 in SSRF check The WHATWG URL parser normalizes IPv4-mapped IPv6 addresses to hex form (e.g. [::ffff:169.254.169.254] → [::ffff:a9fe:a9fe]), which slipped past the dotted-decimal-only extractor. Decode the trailing two 16-bit hex groups back into IPv4 octets and run them through isPrivateIPv4. Also add isPrivateOrLoopbackIPv6 so pure IPv6 loopback (::, ::1), unique local addresses (fc00::/7), and link-local (fe80::/10) cannot be reached. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): scope CSRF metadata fetch and isolate token cache by secret - buildOdataUrl skips request query params when called with an internal pathOverride so the /$metadata CSRF probe never carries user OData options ($filter, $top, $select), which were causing write operations through the generic odata_query tool to fail. - tokenCacheKey now mixes a sha256 hash of clientSecret into the cache key so two tenants sharing the same tokenUrl + clientId but different secrets get isolated entries (no cross-tenant token leak). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): reject ?/# in service path; trim long update tool descriptions - ServicePath validator now rejects "?" and "#" so a caller can't smuggle query options through the path field (e.g., "/A_BusinessPartner?$format=atomsvc"); the Zod refine now reports ".." / "." segments, "?", and "#" together. - Update Customer / Update Supplier / Update Purchase Requisition tool descriptions exceeded the docs generator's 600-char regex window, so they were rendering with empty descriptions on the integrations landing page. Trimmed them to fit while keeping the limited-fields note and the If-Match guidance, then regenerated integrations.json and tool docs. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): reject percent-encoded path traversal; widen Set-Cookie split - ServicePath now also rejects %2e/%2E, %2f/%2F, %5c/%5C, %3f/%3F, %23 so a caller cannot smuggle ".." / "." / "/" / "\" / "?" / "#" past the validator and have SAP's ABAP/ICM gateway decode them server-side. - joinSetCookies fallback regex now allows the ", " separator that's used when multiple Set-Cookie values are folded onto one header line (older runtimes without Headers.getSetCookie). Prevents CSRF cookies from being concatenated into a single value during write operations. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): preserve $ in OData query params; reject empty items array - buildOdataUrl now constructs query strings manually with encodeURIComponent and restores literal "$" so OData system options ($filter, $top, $select, $expand, $orderby, $skip, $format) reach SAP and any intermediary proxies/WAFs as-is, not as "%24filter". URLSearchParams was percent-encoding "$" to "%24" which most ICMs decode but some intermediaries silently drop, returning unfiltered results. - create_sales_order now rejects an empty items array (matches create_purchase_requisition) so callers get a clear client-side error instead of an opaque SAP validation failure on the deep-insert. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): ignore baseUrl on cloud_public to prevent token redirection Why: resolveHost previously preferred baseUrl unconditionally. A caller sending deploymentType=cloud_public with a baseUrl pointing elsewhere would obtain a real SAP UAA token, then forward it as Bearer to the attacker host. Zod superRefine did not validate baseUrl for cloud_public. Fix: resolveHost now constructs the SAP host from subdomain when deploymentType is cloud_public and only uses baseUrl for cloud_private and on_premise (where it is already SSRF-checked in superRefine). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(icons): use useId for SapS4HanaIcon and PipedriveIcon gradients Why: hardcoded SVG gradient/mask IDs collide when an icon renders more than once on a page (e.g. integrations listing). All other icons in this file use React's useId() — these were inconsistent. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * icons * fix(icons): use useId for AWS-style icon gradients Why: IAMIcon, IdentityCenterIcon, STSIcon, SESIcon, and SecretsManagerIcon all used hardcoded `id='xxxGradient'` values that collide when an icon renders more than once on a page (e.g. integrations listing). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(sap_s4hana): ignore tokenUrl on cloud_public to prevent UAA redirection Why: resolveTokenUrl previously honored caller-supplied tokenUrl regardless of deploymentType, mirroring the same redirection class as the prior baseUrl bug. A cloud_public caller could send tokenUrl to an attacker host, causing the proxy to POST clientId:clientSecret as Basic auth to it. superRefine for cloud_public did not validate tokenUrl. Fix: derive UAA URL from subdomain+region for cloud_public; only honor tokenUrl for cloud_private/on_premise (already SSRF-checked). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(icons): remove unused mask in PipedriveIcon Why: the <mask> element had no consumer (no mask='url(#...)' anywhere in the SVG), so both it and the maskId variable were dead code. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> --------- 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.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
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
- 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


