Official fees for all 50 states and DC, read from each state's own fee page every week. Pick the states, company types and filings you need. 1 credit per state, never more than 10 per call.
States
Company types
Filings
Filing method
Only states that return fees are charged. Calls that return nothing are free.
state takes one code, a list (DE,WY,TX) or all. format=flat gives one row per fee; format=csv gives a spreadsheet. Add changedSince=2026-10-01 to get only fees that changed, which is free when nothing did. Full docs.