Q1Is it really free?
Yes. $0, forever. No trial clock, no usage meter, no feature wall on the protocol. It runs local, machine-to-machine, and you never need our servers to use it. Free is the product strategy, not a promotion.
Q2Do you count seats?
Never. Not on the protocol, and not on RailHub either — RailHub is priced per org with unlimited users. Adding a teammate or a machine never costs you anything, anywhere in RailCall.
Q3What do you charge for?
Three things. RailHub — org-wide auditability, the company kill switch, evidence packs, attestation, shared policy and ledger, priced per org. The marketplace — 5% seller fee plus 10% buyer assurance when a module sells. Premium protocol upgrades, à la carte. Everything else is free.
Q4Is it open source?
It's an open protocol. The receipt format is open, offline verification is free forever, and the MCP interface is open — 33 tools you can build against today. The protocol is free to run, customize, and build on. Anyone can verify a RailCall receipt without asking us.
Q5How do publishers get paid?
You publish free, set your price, and keep 95% of every sale. We take 5% from the seller; buyers pay a 10% assurance fee on top. Payouts go to you — 32 modules are live from roughly 20 publishers today.