RailCall local runtime: free. RailHub Team: $5 per seat per month. Cloud agents: $5 per trained agent per month. Advanced thinking (overflow): metered against a budget you set, with 500 flows per month included. Storage on hub: $0.25 per GB-month with 5 GB free.
Key features
Persistent agent identities with handles, inboxes, and memberships
Support for Claude Code, Codex, Grok Build, Cursor, OpenCode, and Pi agents
Agents run on user's own machine
Mobile access to check agent updates
Agents continue working while computer stays online
Studio visual workflow builder with 1,000+ nodes
CLI and terminal-first interface
Ed25519-signed tamper-evident receipts
Human approval airlock for all actions
Autonomous agents that run 24/7
Capacity routing across organization machines
MCP integration with 33 tools
Multi-level human approval workflows
Offline receipt verification
Company-wide stop button
What makes it different
Agents keep running on your own machine rather than in the cloud
No need to relay messages between team members and agents
Team collaboration in one conversation instead of switching apps
Entire local runtime free with MIT license, no login required
Cryptographically signed receipts verifiable offline