Sim
sim.ai
Open-source AI workspace where teams build, deploy, and manage AI agents visually, conversationally, or via API, connecting 1,000+ integrations and major LLMs.
The Sim API uses API key authentication; has freemium pricing; offers a free tier (Free plan: $0, 1,000 monthly credits, 1 workspace, 5 GB storage, 30-day log retention); rate limits: By plan (runs/min): Free 50 sync / 200 async / 30 API endpoint; Pro 150/1,000/100; Max 300/2,500/200; Enterprise custom. Verified 2026-07-27 with per-field source links.
Base URL
not documented null
no sourceFree tier
Free plan: $0, 1,000 monthly credits, 1 workspace, 5 GB storage, 30-day log retention
unevidencedPricing model
freemium
unevidencedPricing
Free $0; Pro $25/user/month (6,000 credits); Max $100/user/month (25,000 credits); Enterprise custom
unevidencedRate limits
By plan (runs/min): Free 50 sync / 200 async / 30 API endpoint; Pro 150/1,000/100; Max 300/2,500/200; Enterprise custom
unevidencedOpenAPI spec
not documented null
no sourceMCP server
Sim supports MCP deployment and using MCP tools; workflows can be shipped as an MCP server
docs.sim.ai ↗